PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago
with promise that one day it will be possible to implement page cache with
bigger chunks than PAGE_SIZE.

This promise never materialized. And unlikely will.

We have many places where PAGE_CACHE_SIZE assumed to be equal to
PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_*
or PAGE_* constant should be used in a particular case, especially on the
border between fs and mm.

Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much
breakage to be doable.

Let's stop pretending that pages in page cache are special. They are not.

The changes are pretty straight-forward:

 - <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>;

 - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN};

 - page_cache_get() -> get_page();

 - page_cache_release() -> put_page();

Signed-off-by: Kirill A. Shutemov <[email protected]>
Cc: Anton Altaparmakov <[email protected]>
---
 fs/ntfs/aops.c     | 50 +++++++++++++++++------------------
 fs/ntfs/aops.h     |  4 +--
 fs/ntfs/attrib.c   | 28 ++++++++++----------
 fs/ntfs/bitmap.c   | 10 +++----
 fs/ntfs/compress.c | 77 ++++++++++++++++++++++++------------------------------
 fs/ntfs/dir.c      | 56 +++++++++++++++++++--------------------
 fs/ntfs/file.c     | 56 +++++++++++++++++++--------------------
 fs/ntfs/index.c    | 14 +++++-----
 fs/ntfs/inode.c    | 12 ++++-----
 fs/ntfs/lcnalloc.c |  6 ++---
 fs/ntfs/logfile.c  | 16 ++++++------
 fs/ntfs/mft.c      | 34 ++++++++++++------------
 fs/ntfs/ntfs.h     |  2 +-
 fs/ntfs/super.c    | 72 +++++++++++++++++++++++++-------------------------
 14 files changed, 214 insertions(+), 223 deletions(-)

diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index 7521e11db728..97768a1379f2 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -74,7 +74,7 @@ static void ntfs_end_buffer_async_read(struct buffer_head 
*bh, int uptodate)
 
                set_buffer_uptodate(bh);
 
-               file_ofs = ((s64)page->index << PAGE_CACHE_SHIFT) +
+               file_ofs = ((s64)page->index << PAGE_SHIFT) +
                                bh_offset(bh);
                read_lock_irqsave(&ni->size_lock, flags);
                init_size = ni->initialized_size;
@@ -142,7 +142,7 @@ static void ntfs_end_buffer_async_read(struct buffer_head 
*bh, int uptodate)
                u32 rec_size;
 
                rec_size = ni->itype.index.block_size;
-               recs = PAGE_CACHE_SIZE / rec_size;
+               recs = PAGE_SIZE / rec_size;
                /* Should have been verified before we got here... */
                BUG_ON(!recs);
                local_irq_save(flags);
@@ -229,7 +229,7 @@ static int ntfs_read_block(struct page *page)
         * fully truncated, truncate will throw it away as soon as we unlock
         * it so no need to worry what we do with it.
         */
-       iblock = (s64)page->index << (PAGE_CACHE_SHIFT - blocksize_bits);
+       iblock = (s64)page->index << (PAGE_SHIFT - blocksize_bits);
        read_lock_irqsave(&ni->size_lock, flags);
        lblock = (ni->allocated_size + blocksize - 1) >> blocksize_bits;
        init_size = ni->initialized_size;
@@ -412,9 +412,9 @@ retry_readpage:
        vi = page->mapping->host;
        i_size = i_size_read(vi);
        /* Is the page fully outside i_size? (truncate in progress) */
-       if (unlikely(page->index >= (i_size + PAGE_CACHE_SIZE - 1) >>
-                       PAGE_CACHE_SHIFT)) {
-               zero_user(page, 0, PAGE_CACHE_SIZE);
+       if (unlikely(page->index >= (i_size + PAGE_SIZE - 1) >>
+                       PAGE_SHIFT)) {
+               zero_user(page, 0, PAGE_SIZE);
                ntfs_debug("Read outside i_size - truncated?");
                goto done;
        }
@@ -463,7 +463,7 @@ retry_readpage:
         * ok to ignore the compressed flag here.
         */
        if (unlikely(page->index > 0)) {
-               zero_user(page, 0, PAGE_CACHE_SIZE);
+               zero_user(page, 0, PAGE_SIZE);
                goto done;
        }
        if (!NInoAttr(ni))
@@ -509,7 +509,7 @@ retry_readpage:
                        le16_to_cpu(ctx->attr->data.resident.value_offset),
                        attr_len);
        /* Zero the remainder of the page. */
-       memset(addr + attr_len, 0, PAGE_CACHE_SIZE - attr_len);
+       memset(addr + attr_len, 0, PAGE_SIZE - attr_len);
        flush_dcache_page(page);
        kunmap_atomic(addr);
 put_unm_err_out:
@@ -599,7 +599,7 @@ static int ntfs_write_block(struct page *page, struct 
writeback_control *wbc)
        /* NOTE: Different naming scheme to ntfs_read_block()! */
 
        /* The first block in the page. */
-       block = (s64)page->index << (PAGE_CACHE_SHIFT - blocksize_bits);
+       block = (s64)page->index << (PAGE_SHIFT - blocksize_bits);
 
        read_lock_irqsave(&ni->size_lock, flags);
        i_size = i_size_read(vi);
@@ -674,7 +674,7 @@ static int ntfs_write_block(struct page *page, struct 
writeback_control *wbc)
                                // in the inode.
                                // Again, for each page do:
                                //      __set_page_dirty_buffers();
-                               // page_cache_release()
+                               // put_page()
                                // We don't need to wait on the writes.
                                // Update iblock.
                        }
@@ -925,7 +925,7 @@ static int ntfs_write_mst_block(struct page *page,
        ntfs_volume *vol = ni->vol;
        u8 *kaddr;
        unsigned int rec_size = ni->itype.index.block_size;
-       ntfs_inode *locked_nis[PAGE_CACHE_SIZE / rec_size];
+       ntfs_inode *locked_nis[PAGE_SIZE / rec_size];
        struct buffer_head *bh, *head, *tbh, *rec_start_bh;
        struct buffer_head *bhs[MAX_BUF_PER_PAGE];
        runlist_element *rl;
@@ -949,7 +949,7 @@ static int ntfs_write_mst_block(struct page *page,
                        (NInoAttr(ni) && ni->type == AT_INDEX_ALLOCATION)));
        bh_size = vol->sb->s_blocksize;
        bh_size_bits = vol->sb->s_blocksize_bits;
-       max_bhs = PAGE_CACHE_SIZE / bh_size;
+       max_bhs = PAGE_SIZE / bh_size;
        BUG_ON(!max_bhs);
        BUG_ON(max_bhs > MAX_BUF_PER_PAGE);
 
@@ -961,13 +961,13 @@ static int ntfs_write_mst_block(struct page *page,
        BUG_ON(!bh);
 
        rec_size_bits = ni->itype.index.block_size_bits;
-       BUG_ON(!(PAGE_CACHE_SIZE >> rec_size_bits));
+       BUG_ON(!(PAGE_SIZE >> rec_size_bits));
        bhs_per_rec = rec_size >> bh_size_bits;
        BUG_ON(!bhs_per_rec);
 
        /* The first block in the page. */
        rec_block = block = (sector_t)page->index <<
-                       (PAGE_CACHE_SHIFT - bh_size_bits);
+                       (PAGE_SHIFT - bh_size_bits);
 
        /* The first out of bounds block for the data size. */
        dblock = (i_size_read(vi) + bh_size - 1) >> bh_size_bits;
@@ -1133,7 +1133,7 @@ lock_retry_remap:
                        unsigned long mft_no;
 
                        /* Get the mft record number. */
-                       mft_no = (((s64)page->index << PAGE_CACHE_SHIFT) + ofs)
+                       mft_no = (((s64)page->index << PAGE_SHIFT) + ofs)
                                        >> rec_size_bits;
                        /* Check whether to write this mft record. */
                        tni = NULL;
@@ -1249,7 +1249,7 @@ do_mirror:
                                continue;
                        ofs = bh_offset(tbh);
                        /* Get the mft record number. */
-                       mft_no = (((s64)page->index << PAGE_CACHE_SHIFT) + ofs)
+                       mft_no = (((s64)page->index << PAGE_SHIFT) + ofs)
                                        >> rec_size_bits;
                        if (mft_no < vol->mftmirr_size)
                                ntfs_sync_mft_mirror(vol, mft_no,
@@ -1300,7 +1300,7 @@ done:
                 * Set page error if there is only one ntfs record in the page.
                 * Otherwise we would loose per-record granularity.
                 */
-               if (ni->itype.index.block_size == PAGE_CACHE_SIZE)
+               if (ni->itype.index.block_size == PAGE_SIZE)
                        SetPageError(page);
                NVolSetErrors(vol);
        }
@@ -1308,7 +1308,7 @@ done:
                ntfs_debug("Page still contains one or more dirty ntfs "
                                "records.  Redirtying the page starting at "
                                "record 0x%lx.", page->index <<
-                               (PAGE_CACHE_SHIFT - rec_size_bits));
+                               (PAGE_SHIFT - rec_size_bits));
                redirty_page_for_writepage(wbc, page);
                unlock_page(page);
        } else {
@@ -1365,13 +1365,13 @@ retry_writepage:
        BUG_ON(!PageLocked(page));
        i_size = i_size_read(vi);
        /* Is the page fully outside i_size? (truncate in progress) */
-       if (unlikely(page->index >= (i_size + PAGE_CACHE_SIZE - 1) >>
-                       PAGE_CACHE_SHIFT)) {
+       if (unlikely(page->index >= (i_size + PAGE_SIZE - 1) >>
+                       PAGE_SHIFT)) {
                /*
                 * The page may have dirty, unmapped buffers.  Make them
                 * freeable here, so the page does not leak.
                 */
-               block_invalidatepage(page, 0, PAGE_CACHE_SIZE);
+               block_invalidatepage(page, 0, PAGE_SIZE);
                unlock_page(page);
                ntfs_debug("Write outside i_size - truncated?");
                return 0;
@@ -1414,10 +1414,10 @@ retry_writepage:
        /* NInoNonResident() == NInoIndexAllocPresent() */
        if (NInoNonResident(ni)) {
                /* We have to zero every time due to mmap-at-end-of-file. */
-               if (page->index >= (i_size >> PAGE_CACHE_SHIFT)) {
+               if (page->index >= (i_size >> PAGE_SHIFT)) {
                        /* The page straddles i_size. */
-                       unsigned int ofs = i_size & ~PAGE_CACHE_MASK;
-                       zero_user_segment(page, ofs, PAGE_CACHE_SIZE);
+                       unsigned int ofs = i_size & ~PAGE_MASK;
+                       zero_user_segment(page, ofs, PAGE_SIZE);
                }
                /* Handle mst protected attributes. */
                if (NInoMstProtected(ni))
@@ -1500,7 +1500,7 @@ retry_writepage:
                        le16_to_cpu(ctx->attr->data.resident.value_offset),
                        addr, attr_len);
        /* Zero out of bounds area in the page cache page. */
-       memset(addr + attr_len, 0, PAGE_CACHE_SIZE - attr_len);
+       memset(addr + attr_len, 0, PAGE_SIZE - attr_len);
        kunmap_atomic(addr);
        flush_dcache_page(page);
        flush_dcache_mft_record_page(ctx->ntfs_ino);
diff --git a/fs/ntfs/aops.h b/fs/ntfs/aops.h
index caecc58f529c..820d6eabf60f 100644
--- a/fs/ntfs/aops.h
+++ b/fs/ntfs/aops.h
@@ -40,7 +40,7 @@
 static inline void ntfs_unmap_page(struct page *page)
 {
        kunmap(page);
-       page_cache_release(page);
+       put_page(page);
 }
 
 /**
@@ -49,7 +49,7 @@ static inline void ntfs_unmap_page(struct page *page)
  * @index:     index into the page cache for @mapping of the page to map
  *
  * Read a page from the page cache of the address space @mapping at position
- * @index, where @index is in units of PAGE_CACHE_SIZE, and not in bytes.
+ * @index, where @index is in units of PAGE_SIZE, and not in bytes.
  *
  * If the page is not in memory it is loaded from disk first using the readpage
  * method defined in the address space operations of @mapping and the page is
diff --git a/fs/ntfs/attrib.c b/fs/ntfs/attrib.c
index 250ed5b20c8f..44a39a099b54 100644
--- a/fs/ntfs/attrib.c
+++ b/fs/ntfs/attrib.c
@@ -152,7 +152,7 @@ int ntfs_map_runlist_nolock(ntfs_inode *ni, VCN vcn, 
ntfs_attr_search_ctx *ctx)
                        if (old_ctx.base_ntfs_ino && old_ctx.ntfs_ino !=
                                        old_ctx.base_ntfs_ino) {
                                put_this_page = old_ctx.ntfs_ino->page;
-                               page_cache_get(put_this_page);
+                               get_page(put_this_page);
                        }
                        /*
                         * Reinitialize the search context so we can lookup the
@@ -275,7 +275,7 @@ retry_map:
                 * the pieces anyway.
                 */
                if (put_this_page)
-                       page_cache_release(put_this_page);
+                       put_page(put_this_page);
        }
        return err;
 }
@@ -1660,7 +1660,7 @@ int ntfs_attr_make_non_resident(ntfs_inode *ni, const u32 
data_size)
                memcpy(kaddr, (u8*)a +
                                le16_to_cpu(a->data.resident.value_offset),
                                attr_size);
-               memset(kaddr + attr_size, 0, PAGE_CACHE_SIZE - attr_size);
+               memset(kaddr + attr_size, 0, PAGE_SIZE - attr_size);
                kunmap_atomic(kaddr);
                flush_dcache_page(page);
                SetPageUptodate(page);
@@ -1748,7 +1748,7 @@ int ntfs_attr_make_non_resident(ntfs_inode *ni, const u32 
data_size)
        if (page) {
                set_page_dirty(page);
                unlock_page(page);
-               page_cache_release(page);
+               put_page(page);
        }
        ntfs_debug("Done.");
        return 0;
@@ -1835,7 +1835,7 @@ rl_err_out:
                ntfs_free(rl);
 page_err_out:
                unlock_page(page);
-               page_cache_release(page);
+               put_page(page);
        }
        if (err == -EINVAL)
                err = -EIO;
@@ -2513,17 +2513,17 @@ int ntfs_attr_set(ntfs_inode *ni, const s64 ofs, const 
s64 cnt, const u8 val)
        BUG_ON(NInoEncrypted(ni));
        mapping = VFS_I(ni)->i_mapping;
        /* Work out the starting index and page offset. */
-       idx = ofs >> PAGE_CACHE_SHIFT;
-       start_ofs = ofs & ~PAGE_CACHE_MASK;
+       idx = ofs >> PAGE_SHIFT;
+       start_ofs = ofs & ~PAGE_MASK;
        /* Work out the ending index and page offset. */
        end = ofs + cnt;
-       end_ofs = end & ~PAGE_CACHE_MASK;
+       end_ofs = end & ~PAGE_MASK;
        /* If the end is outside the inode size return -ESPIPE. */
        if (unlikely(end > i_size_read(VFS_I(ni)))) {
                ntfs_error(vol->sb, "Request exceeds end of attribute.");
                return -ESPIPE;
        }
-       end >>= PAGE_CACHE_SHIFT;
+       end >>= PAGE_SHIFT;
        /* If there is a first partial page, need to do it the slow way. */
        if (start_ofs) {
                page = read_mapping_page(mapping, idx, NULL);
@@ -2536,7 +2536,7 @@ int ntfs_attr_set(ntfs_inode *ni, const s64 ofs, const 
s64 cnt, const u8 val)
                 * If the last page is the same as the first page, need to
                 * limit the write to the end offset.
                 */
-               size = PAGE_CACHE_SIZE;
+               size = PAGE_SIZE;
                if (idx == end)
                        size = end_ofs;
                kaddr = kmap_atomic(page);
@@ -2544,7 +2544,7 @@ int ntfs_attr_set(ntfs_inode *ni, const s64 ofs, const 
s64 cnt, const u8 val)
                flush_dcache_page(page);
                kunmap_atomic(kaddr);
                set_page_dirty(page);
-               page_cache_release(page);
+               put_page(page);
                balance_dirty_pages_ratelimited(mapping);
                cond_resched();
                if (idx == end)
@@ -2561,7 +2561,7 @@ int ntfs_attr_set(ntfs_inode *ni, const s64 ofs, const 
s64 cnt, const u8 val)
                        return -ENOMEM;
                }
                kaddr = kmap_atomic(page);
-               memset(kaddr, val, PAGE_CACHE_SIZE);
+               memset(kaddr, val, PAGE_SIZE);
                flush_dcache_page(page);
                kunmap_atomic(kaddr);
                /*
@@ -2585,7 +2585,7 @@ int ntfs_attr_set(ntfs_inode *ni, const s64 ofs, const 
s64 cnt, const u8 val)
                set_page_dirty(page);
                /* Finally unlock and release the page. */
                unlock_page(page);
-               page_cache_release(page);
+               put_page(page);
                balance_dirty_pages_ratelimited(mapping);
                cond_resched();
        }
@@ -2602,7 +2602,7 @@ int ntfs_attr_set(ntfs_inode *ni, const s64 ofs, const 
s64 cnt, const u8 val)
                flush_dcache_page(page);
                kunmap_atomic(kaddr);
                set_page_dirty(page);
-               page_cache_release(page);
+               put_page(page);
                balance_dirty_pages_ratelimited(mapping);
                cond_resched();
        }
diff --git a/fs/ntfs/bitmap.c b/fs/ntfs/bitmap.c
index 0809cf876098..ec130c588d2b 100644
--- a/fs/ntfs/bitmap.c
+++ b/fs/ntfs/bitmap.c
@@ -67,8 +67,8 @@ int __ntfs_bitmap_set_bits_in_run(struct inode *vi, const s64 
start_bit,
         * Calculate the indices for the pages containing the first and last
         * bits, i.e. @start_bit and @start_bit + @cnt - 1, respectively.
         */
-       index = start_bit >> (3 + PAGE_CACHE_SHIFT);
-       end_index = (start_bit + cnt - 1) >> (3 + PAGE_CACHE_SHIFT);
+       index = start_bit >> (3 + PAGE_SHIFT);
+       end_index = (start_bit + cnt - 1) >> (3 + PAGE_SHIFT);
 
        /* Get the page containing the first bit (@start_bit). */
        mapping = vi->i_mapping;
@@ -82,7 +82,7 @@ int __ntfs_bitmap_set_bits_in_run(struct inode *vi, const s64 
start_bit,
        kaddr = page_address(page);
 
        /* Set @pos to the position of the byte containing @start_bit. */
-       pos = (start_bit >> 3) & ~PAGE_CACHE_MASK;
+       pos = (start_bit >> 3) & ~PAGE_MASK;
 
        /* Calculate the position of @start_bit in the first byte. */
        bit = start_bit & 7;
@@ -108,7 +108,7 @@ int __ntfs_bitmap_set_bits_in_run(struct inode *vi, const 
s64 start_bit,
         * Depending on @value, modify all remaining whole bytes in the page up
         * to @cnt.
         */
-       len = min_t(s64, cnt >> 3, PAGE_CACHE_SIZE - pos);
+       len = min_t(s64, cnt >> 3, PAGE_SIZE - pos);
        memset(kaddr + pos, value ? 0xff : 0, len);
        cnt -= len << 3;
 
@@ -132,7 +132,7 @@ int __ntfs_bitmap_set_bits_in_run(struct inode *vi, const 
s64 start_bit,
                 * Depending on @value, modify all remaining whole bytes in the
                 * page up to @cnt.
                 */
-               len = min_t(s64, cnt >> 3, PAGE_CACHE_SIZE);
+               len = min_t(s64, cnt >> 3, PAGE_SIZE);
                memset(kaddr, value ? 0xff : 0, len);
                cnt -= len << 3;
        }
diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c
index f82498c35e78..f2b5e746f49b 100644
--- a/fs/ntfs/compress.c
+++ b/fs/ntfs/compress.c
@@ -104,16 +104,12 @@ static void zero_partial_compressed_page(struct page 
*page,
        unsigned int kp_ofs;
 
        ntfs_debug("Zeroing page region outside initialized size.");
-       if (((s64)page->index << PAGE_CACHE_SHIFT) >= initialized_size) {
-               /*
-                * FIXME: Using clear_page() will become wrong when we get
-                * PAGE_CACHE_SIZE != PAGE_SIZE but for now there is no problem.
-                */
+       if (((s64)page->index << PAGE_SHIFT) >= initialized_size) {
                clear_page(kp);
                return;
        }
-       kp_ofs = initialized_size & ~PAGE_CACHE_MASK;
-       memset(kp + kp_ofs, 0, PAGE_CACHE_SIZE - kp_ofs);
+       kp_ofs = initialized_size & ~PAGE_MASK;
+       memset(kp + kp_ofs, 0, PAGE_SIZE - kp_ofs);
        return;
 }
 
@@ -123,7 +119,7 @@ static void zero_partial_compressed_page(struct page *page,
 static inline void handle_bounds_compressed_page(struct page *page,
                const loff_t i_size, const s64 initialized_size)
 {
-       if ((page->index >= (initialized_size >> PAGE_CACHE_SHIFT)) &&
+       if ((page->index >= (initialized_size >> PAGE_SHIFT)) &&
                        (initialized_size < i_size))
                zero_partial_compressed_page(page, initialized_size);
        return;
@@ -160,7 +156,7 @@ static inline void handle_bounds_compressed_page(struct 
page *page,
  * @xpage_done indicates whether the target page (@dest_pages[@xpage]) was
  * completed during the decompression of the compression block (@cb_start).
  *
- * Warning: This function *REQUIRES* PAGE_CACHE_SIZE >= 4096 or it will blow up
+ * Warning: This function *REQUIRES* PAGE_SIZE >= 4096 or it will blow up
  * unpredicatbly! You have been warned!
  *
  * Note to hackers: This function may not sleep until it has finished accessing
@@ -241,7 +237,7 @@ return_error:
                                if (di == xpage)
                                        *xpage_done = 1;
                                else
-                                       page_cache_release(dp);
+                                       put_page(dp);
                                dest_pages[di] = NULL;
                        }
                }
@@ -274,7 +270,7 @@ return_error:
                cb = cb_sb_end;
 
                /* Advance destination position to next sub-block. */
-               *dest_ofs = (*dest_ofs + NTFS_SB_SIZE) & ~PAGE_CACHE_MASK;
+               *dest_ofs = (*dest_ofs + NTFS_SB_SIZE) & ~PAGE_MASK;
                if (!*dest_ofs && (++*dest_index > dest_max_index))
                        goto return_overflow;
                goto do_next_sb;
@@ -301,7 +297,7 @@ return_error:
 
                /* Advance destination position to next sub-block. */
                *dest_ofs += NTFS_SB_SIZE;
-               if (!(*dest_ofs &= ~PAGE_CACHE_MASK)) {
+               if (!(*dest_ofs &= ~PAGE_MASK)) {
 finalize_page:
                        /*
                         * First stage: add current page index to array of
@@ -335,7 +331,7 @@ do_next_tag:
                        *dest_ofs += nr_bytes;
                }
                /* We have finished the current sub-block. */
-               if (!(*dest_ofs &= ~PAGE_CACHE_MASK))
+               if (!(*dest_ofs &= ~PAGE_MASK))
                        goto finalize_page;
                goto do_next_sb;
        }
@@ -462,7 +458,7 @@ return_overflow:
  * have been written to so that we would lose data if we were to just overwrite
  * them with the out-of-date uncompressed data.
  *
- * FIXME: For PAGE_CACHE_SIZE > cb_size we are not doing the Right Thing(TM) at
+ * FIXME: For PAGE_SIZE > cb_size we are not doing the Right Thing(TM) at
  * the end of the file I think. We need to detect this case and zero the out
  * of bounds remainder of the page in question and mark it as handled. At the
  * moment we would just return -EIO on such a page. This bug will only become
@@ -470,7 +466,7 @@ return_overflow:
  * clusters so is probably not going to be seen by anyone. Still this should
  * be fixed. (AIA)
  *
- * FIXME: Again for PAGE_CACHE_SIZE > cb_size we are screwing up both in
+ * FIXME: Again for PAGE_SIZE > cb_size we are screwing up both in
  * handling sparse and compressed cbs. (AIA)
  *
  * FIXME: At the moment we don't do any zeroing out in the case that
@@ -497,14 +493,14 @@ int ntfs_read_compressed_block(struct page *page)
        u64 cb_size_mask = cb_size - 1UL;
        VCN vcn;
        LCN lcn;
-       /* The first wanted vcn (minimum alignment is PAGE_CACHE_SIZE). */
-       VCN start_vcn = (((s64)index << PAGE_CACHE_SHIFT) & ~cb_size_mask) >>
+       /* The first wanted vcn (minimum alignment is PAGE_SIZE). */
+       VCN start_vcn = (((s64)index << PAGE_SHIFT) & ~cb_size_mask) >>
                        vol->cluster_size_bits;
        /*
         * The first vcn after the last wanted vcn (minimum alignment is again
-        * PAGE_CACHE_SIZE.
+        * PAGE_SIZE.
         */
-       VCN end_vcn = ((((s64)(index + 1UL) << PAGE_CACHE_SHIFT) + cb_size - 1)
+       VCN end_vcn = ((((s64)(index + 1UL) << PAGE_SHIFT) + cb_size - 1)
                        & ~cb_size_mask) >> vol->cluster_size_bits;
        /* Number of compression blocks (cbs) in the wanted vcn range. */
        unsigned int nr_cbs = (end_vcn - start_vcn) << vol->cluster_size_bits
@@ -515,7 +511,7 @@ int ntfs_read_compressed_block(struct page *page)
         * guarantees of start_vcn and end_vcn, no need to round up here.
         */
        unsigned int nr_pages = (end_vcn - start_vcn) <<
-                       vol->cluster_size_bits >> PAGE_CACHE_SHIFT;
+                       vol->cluster_size_bits >> PAGE_SHIFT;
        unsigned int xpage, max_page, cur_page, cur_ofs, i;
        unsigned int cb_clusters, cb_max_ofs;
        int block, max_block, cb_max_page, bhs_size, nr_bhs, err = 0;
@@ -549,7 +545,7 @@ int ntfs_read_compressed_block(struct page *page)
         * We have already been given one page, this is the one we must do.
         * Once again, the alignment guarantees keep it simple.
         */
-       offset = start_vcn << vol->cluster_size_bits >> PAGE_CACHE_SHIFT;
+       offset = start_vcn << vol->cluster_size_bits >> PAGE_SHIFT;
        xpage = index - offset;
        pages[xpage] = page;
        /*
@@ -560,13 +556,13 @@ int ntfs_read_compressed_block(struct page *page)
        i_size = i_size_read(VFS_I(ni));
        initialized_size = ni->initialized_size;
        read_unlock_irqrestore(&ni->size_lock, flags);
-       max_page = ((i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT) -
+       max_page = ((i_size + PAGE_SIZE - 1) >> PAGE_SHIFT) -
                        offset;
        /* Is the page fully outside i_size? (truncate in progress) */
        if (xpage >= max_page) {
                kfree(bhs);
                kfree(pages);
-               zero_user(page, 0, PAGE_CACHE_SIZE);
+               zero_user(page, 0, PAGE_SIZE);
                ntfs_debug("Compressed read outside i_size - truncated?");
                SetPageUptodate(page);
                unlock_page(page);
@@ -591,7 +587,7 @@ int ntfs_read_compressed_block(struct page *page)
                                continue;
                        }
                        unlock_page(page);
-                       page_cache_release(page);
+                       put_page(page);
                        pages[i] = NULL;
                }
        }
@@ -735,9 +731,9 @@ lock_retry_remap:
        ntfs_debug("Successfully read the compression block.");
 
        /* The last page and maximum offset within it for the current cb. */
-       cb_max_page = (cur_page << PAGE_CACHE_SHIFT) + cur_ofs + cb_size;
-       cb_max_ofs = cb_max_page & ~PAGE_CACHE_MASK;
-       cb_max_page >>= PAGE_CACHE_SHIFT;
+       cb_max_page = (cur_page << PAGE_SHIFT) + cur_ofs + cb_size;
+       cb_max_ofs = cb_max_page & ~PAGE_MASK;
+       cb_max_page >>= PAGE_SHIFT;
 
        /* Catch end of file inside a compression block. */
        if (cb_max_page > max_page)
@@ -753,16 +749,11 @@ lock_retry_remap:
                for (; cur_page < cb_max_page; cur_page++) {
                        page = pages[cur_page];
                        if (page) {
-                               /*
-                                * FIXME: Using clear_page() will become wrong
-                                * when we get PAGE_CACHE_SIZE != PAGE_SIZE but
-                                * for now there is no problem.
-                                */
                                if (likely(!cur_ofs))
                                        clear_page(page_address(page));
                                else
                                        memset(page_address(page) + cur_ofs, 0,
-                                                       PAGE_CACHE_SIZE -
+                                                       PAGE_SIZE -
                                                        cur_ofs);
                                flush_dcache_page(page);
                                kunmap(page);
@@ -771,10 +762,10 @@ lock_retry_remap:
                                if (cur_page == xpage)
                                        xpage_done = 1;
                                else
-                                       page_cache_release(page);
+                                       put_page(page);
                                pages[cur_page] = NULL;
                        }
-                       cb_pos += PAGE_CACHE_SIZE - cur_ofs;
+                       cb_pos += PAGE_SIZE - cur_ofs;
                        cur_ofs = 0;
                        if (cb_pos >= cb_end)
                                break;
@@ -807,7 +798,7 @@ lock_retry_remap:
                 * synchronous io for the majority of pages.
                 * Or if we choose not to do the read-ahead/-behind stuff, we
                 * could just return block_read_full_page(pages[xpage]) as long
-                * as PAGE_CACHE_SIZE <= cb_size.
+                * as PAGE_SIZE <= cb_size.
                 */
                if (cb_max_ofs)
                        cb_max_page--;
@@ -816,8 +807,8 @@ lock_retry_remap:
                        page = pages[cur_page];
                        if (page)
                                memcpy(page_address(page) + cur_ofs, cb_pos,
-                                               PAGE_CACHE_SIZE - cur_ofs);
-                       cb_pos += PAGE_CACHE_SIZE - cur_ofs;
+                                               PAGE_SIZE - cur_ofs);
+                       cb_pos += PAGE_SIZE - cur_ofs;
                        cur_ofs = 0;
                        if (cb_pos >= cb_end)
                                break;
@@ -850,10 +841,10 @@ lock_retry_remap:
                                if (cur2_page == xpage)
                                        xpage_done = 1;
                                else
-                                       page_cache_release(page);
+                                       put_page(page);
                                pages[cur2_page] = NULL;
                        }
-                       cb_pos2 += PAGE_CACHE_SIZE - cur_ofs2;
+                       cb_pos2 += PAGE_SIZE - cur_ofs2;
                        cur_ofs2 = 0;
                        if (cb_pos2 >= cb_end)
                                break;
@@ -884,7 +875,7 @@ lock_retry_remap:
                                        kunmap(page);
                                        unlock_page(page);
                                        if (prev_cur_page != xpage)
-                                               page_cache_release(page);
+                                               put_page(page);
                                        pages[prev_cur_page] = NULL;
                                }
                        }
@@ -914,7 +905,7 @@ lock_retry_remap:
                        kunmap(page);
                        unlock_page(page);
                        if (cur_page != xpage)
-                               page_cache_release(page);
+                               put_page(page);
                        pages[cur_page] = NULL;
                }
        }
@@ -961,7 +952,7 @@ err_out:
                        kunmap(page);
                        unlock_page(page);
                        if (i != xpage)
-                               page_cache_release(page);
+                               put_page(page);
                }
        }
        kfree(pages);
diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
index b2eff5816adc..a18613579001 100644
--- a/fs/ntfs/dir.c
+++ b/fs/ntfs/dir.c
@@ -315,11 +315,11 @@ found_it:
 descend_into_child_node:
        /*
         * Convert vcn to index into the index allocation attribute in units
-        * of PAGE_CACHE_SIZE and map the page cache page, reading it from
+        * of PAGE_SIZE and map the page cache page, reading it from
         * disk if necessary.
         */
        page = ntfs_map_page(ia_mapping, vcn <<
-                       dir_ni->itype.index.vcn_size_bits >> PAGE_CACHE_SHIFT);
+                       dir_ni->itype.index.vcn_size_bits >> PAGE_SHIFT);
        if (IS_ERR(page)) {
                ntfs_error(sb, "Failed to map directory index page, error %ld.",
                                -PTR_ERR(page));
@@ -331,9 +331,9 @@ descend_into_child_node:
 fast_descend_into_child_node:
        /* Get to the index allocation block. */
        ia = (INDEX_ALLOCATION*)(kaddr + ((vcn <<
-                       dir_ni->itype.index.vcn_size_bits) & ~PAGE_CACHE_MASK));
+                       dir_ni->itype.index.vcn_size_bits) & ~PAGE_MASK));
        /* Bounds checks. */
-       if ((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE) {
+       if ((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_SIZE) {
                ntfs_error(sb, "Out of bounds check failed. Corrupt directory "
                                "inode 0x%lx or driver bug.", dir_ni->mft_no);
                goto unm_err_out;
@@ -366,7 +366,7 @@ fast_descend_into_child_node:
                goto unm_err_out;
        }
        index_end = (u8*)ia + dir_ni->itype.index.block_size;
-       if (index_end > kaddr + PAGE_CACHE_SIZE) {
+       if (index_end > kaddr + PAGE_SIZE) {
                ntfs_error(sb, "Index buffer (VCN 0x%llx) of directory inode "
                                "0x%lx crosses page boundary. Impossible! "
                                "Cannot access! This is probably a bug in the "
@@ -559,9 +559,9 @@ found_it2:
                        /* If vcn is in the same page cache page as old_vcn we
                         * recycle the mapped page. */
                        if (old_vcn << vol->cluster_size_bits >>
-                                       PAGE_CACHE_SHIFT == vcn <<
+                                       PAGE_SHIFT == vcn <<
                                        vol->cluster_size_bits >>
-                                       PAGE_CACHE_SHIFT)
+                                       PAGE_SHIFT)
                                goto fast_descend_into_child_node;
                        unlock_page(page);
                        ntfs_unmap_page(page);
@@ -793,11 +793,11 @@ found_it:
 descend_into_child_node:
        /*
         * Convert vcn to index into the index allocation attribute in units
-        * of PAGE_CACHE_SIZE and map the page cache page, reading it from
+        * of PAGE_SIZE and map the page cache page, reading it from
         * disk if necessary.
         */
        page = ntfs_map_page(ia_mapping, vcn <<
-                       dir_ni->itype.index.vcn_size_bits >> PAGE_CACHE_SHIFT);
+                       dir_ni->itype.index.vcn_size_bits >> PAGE_SHIFT);
        if (IS_ERR(page)) {
                ntfs_error(sb, "Failed to map directory index page, error %ld.",
                                -PTR_ERR(page));
@@ -809,9 +809,9 @@ descend_into_child_node:
 fast_descend_into_child_node:
        /* Get to the index allocation block. */
        ia = (INDEX_ALLOCATION*)(kaddr + ((vcn <<
-                       dir_ni->itype.index.vcn_size_bits) & ~PAGE_CACHE_MASK));
+                       dir_ni->itype.index.vcn_size_bits) & ~PAGE_MASK));
        /* Bounds checks. */
-       if ((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE) {
+       if ((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_SIZE) {
                ntfs_error(sb, "Out of bounds check failed. Corrupt directory "
                                "inode 0x%lx or driver bug.", dir_ni->mft_no);
                goto unm_err_out;
@@ -844,7 +844,7 @@ fast_descend_into_child_node:
                goto unm_err_out;
        }
        index_end = (u8*)ia + dir_ni->itype.index.block_size;
-       if (index_end > kaddr + PAGE_CACHE_SIZE) {
+       if (index_end > kaddr + PAGE_SIZE) {
                ntfs_error(sb, "Index buffer (VCN 0x%llx) of directory inode "
                                "0x%lx crosses page boundary. Impossible! "
                                "Cannot access! This is probably a bug in the "
@@ -968,9 +968,9 @@ found_it2:
                        /* If vcn is in the same page cache page as old_vcn we
                         * recycle the mapped page. */
                        if (old_vcn << vol->cluster_size_bits >>
-                                       PAGE_CACHE_SHIFT == vcn <<
+                                       PAGE_SHIFT == vcn <<
                                        vol->cluster_size_bits >>
-                                       PAGE_CACHE_SHIFT)
+                                       PAGE_SHIFT)
                                goto fast_descend_into_child_node;
                        unlock_page(page);
                        ntfs_unmap_page(page);
@@ -1246,15 +1246,15 @@ skip_index_root:
                goto iput_err_out;
        }
        /* Get the starting bit position in the current bitmap page. */
-       cur_bmp_pos = bmp_pos & ((PAGE_CACHE_SIZE * 8) - 1);
-       bmp_pos &= ~(u64)((PAGE_CACHE_SIZE * 8) - 1);
+       cur_bmp_pos = bmp_pos & ((PAGE_SIZE * 8) - 1);
+       bmp_pos &= ~(u64)((PAGE_SIZE * 8) - 1);
 get_next_bmp_page:
        ntfs_debug("Reading bitmap with page index 0x%llx, bit ofs 0x%llx",
-                       (unsigned long long)bmp_pos >> (3 + PAGE_CACHE_SHIFT),
+                       (unsigned long long)bmp_pos >> (3 + PAGE_SHIFT),
                        (unsigned long long)bmp_pos &
-                       (unsigned long long)((PAGE_CACHE_SIZE * 8) - 1));
+                       (unsigned long long)((PAGE_SIZE * 8) - 1));
        bmp_page = ntfs_map_page(bmp_mapping,
-                       bmp_pos >> (3 + PAGE_CACHE_SHIFT));
+                       bmp_pos >> (3 + PAGE_SHIFT));
        if (IS_ERR(bmp_page)) {
                ntfs_error(sb, "Reading index bitmap failed.");
                err = PTR_ERR(bmp_page);
@@ -1270,9 +1270,9 @@ find_next_index_buffer:
                 * If we have reached the end of the bitmap page, get the next
                 * page, and put away the old one.
                 */
-               if (unlikely((cur_bmp_pos >> 3) >= PAGE_CACHE_SIZE)) {
+               if (unlikely((cur_bmp_pos >> 3) >= PAGE_SIZE)) {
                        ntfs_unmap_page(bmp_page);
-                       bmp_pos += PAGE_CACHE_SIZE * 8;
+                       bmp_pos += PAGE_SIZE * 8;
                        cur_bmp_pos = 0;
                        goto get_next_bmp_page;
                }
@@ -1285,8 +1285,8 @@ find_next_index_buffer:
        ntfs_debug("Handling index buffer 0x%llx.",
                        (unsigned long long)bmp_pos + cur_bmp_pos);
        /* If the current index buffer is in the same page we reuse the page. */
-       if ((prev_ia_pos & (s64)PAGE_CACHE_MASK) !=
-                       (ia_pos & (s64)PAGE_CACHE_MASK)) {
+       if ((prev_ia_pos & (s64)PAGE_MASK) !=
+                       (ia_pos & (s64)PAGE_MASK)) {
                prev_ia_pos = ia_pos;
                if (likely(ia_page != NULL)) {
                        unlock_page(ia_page);
@@ -1296,7 +1296,7 @@ find_next_index_buffer:
                 * Map the page cache page containing the current ia_pos,
                 * reading it from disk if necessary.
                 */
-               ia_page = ntfs_map_page(ia_mapping, ia_pos >> PAGE_CACHE_SHIFT);
+               ia_page = ntfs_map_page(ia_mapping, ia_pos >> PAGE_SHIFT);
                if (IS_ERR(ia_page)) {
                        ntfs_error(sb, "Reading index allocation data failed.");
                        err = PTR_ERR(ia_page);
@@ -1307,10 +1307,10 @@ find_next_index_buffer:
                kaddr = (u8*)page_address(ia_page);
        }
        /* Get the current index buffer. */
-       ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_CACHE_MASK &
-                       ~(s64)(ndir->itype.index.block_size - 1)));
+       ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_MASK &
+                                         ~(s64)(ndir->itype.index.block_size - 
1)));
        /* Bounds checks. */
-       if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
+       if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_SIZE)) {
                ntfs_error(sb, "Out of bounds check failed. Corrupt directory "
                                "inode 0x%lx or driver bug.", vdir->i_ino);
                goto err_out;
@@ -1348,7 +1348,7 @@ find_next_index_buffer:
                goto err_out;
        }
        index_end = (u8*)ia + ndir->itype.index.block_size;
-       if (unlikely(index_end > kaddr + PAGE_CACHE_SIZE)) {
+       if (unlikely(index_end > kaddr + PAGE_SIZE)) {
                ntfs_error(sb, "Index buffer (VCN 0x%llx) of directory inode "
                                "0x%lx crosses page boundary. Impossible! "
                                "Cannot access! This is probably a bug in the "
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index bed4d427dfae..91117ada8528 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -220,8 +220,8 @@ do_non_resident_extend:
                m = NULL;
        }
        mapping = vi->i_mapping;
-       index = old_init_size >> PAGE_CACHE_SHIFT;
-       end_index = (new_init_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+       index = old_init_size >> PAGE_SHIFT;
+       end_index = (new_init_size + PAGE_SIZE - 1) >> PAGE_SHIFT;
        do {
                /*
                 * Read the page.  If the page is not present, this will zero
@@ -233,7 +233,7 @@ do_non_resident_extend:
                        goto init_err_out;
                }
                if (unlikely(PageError(page))) {
-                       page_cache_release(page);
+                       put_page(page);
                        err = -EIO;
                        goto init_err_out;
                }
@@ -242,13 +242,13 @@ do_non_resident_extend:
                 * enough to make ntfs_writepage() work.
                 */
                write_lock_irqsave(&ni->size_lock, flags);
-               ni->initialized_size = (s64)(index + 1) << PAGE_CACHE_SHIFT;
+               ni->initialized_size = (s64)(index + 1) << PAGE_SHIFT;
                if (ni->initialized_size > new_init_size)
                        ni->initialized_size = new_init_size;
                write_unlock_irqrestore(&ni->size_lock, flags);
                /* Set the page dirty so it gets written out. */
                set_page_dirty(page);
-               page_cache_release(page);
+               put_page(page);
                /*
                 * Play nice with the vm and the rest of the system.  This is
                 * very much needed as we can potentially be modifying the
@@ -543,7 +543,7 @@ out:
 err_out:
        while (nr > 0) {
                unlock_page(pages[--nr]);
-               page_cache_release(pages[nr]);
+               put_page(pages[nr]);
        }
        goto out;
 }
@@ -573,7 +573,7 @@ static inline int ntfs_submit_bh_for_read(struct 
buffer_head *bh)
  * only partially being written to.
  *
  * If @nr_pages is greater than one, we are guaranteed that the cluster size is
- * greater than PAGE_CACHE_SIZE, that all pages in @pages are entirely inside
+ * greater than PAGE_SIZE, that all pages in @pages are entirely inside
  * the same cluster and that they are the entirety of that cluster, and that
  * the cluster is sparse, i.e. we need to allocate a cluster to fill the hole.
  *
@@ -653,7 +653,7 @@ static int ntfs_prepare_pages_for_non_resident_write(struct 
page **pages,
        u = 0;
 do_next_page:
        page = pages[u];
-       bh_pos = (s64)page->index << PAGE_CACHE_SHIFT;
+       bh_pos = (s64)page->index << PAGE_SHIFT;
        bh = head = page_buffers(page);
        do {
                VCN cdelta;
@@ -810,11 +810,11 @@ map_buffer_cached:
                                        
                                kaddr = kmap_atomic(page);
                                if (bh_pos < pos) {
-                                       pofs = bh_pos & ~PAGE_CACHE_MASK;
+                                       pofs = bh_pos & ~PAGE_MASK;
                                        memset(kaddr + pofs, 0, pos - bh_pos);
                                }
                                if (bh_end > end) {
-                                       pofs = end & ~PAGE_CACHE_MASK;
+                                       pofs = end & ~PAGE_MASK;
                                        memset(kaddr + pofs, 0, bh_end - end);
                                }
                                kunmap_atomic(kaddr);
@@ -942,7 +942,7 @@ rl_not_mapped_enoent:
                 * unmapped.  This can only happen when the cluster size is
                 * less than the page cache size.
                 */
-               if (unlikely(vol->cluster_size < PAGE_CACHE_SIZE)) {
+               if (unlikely(vol->cluster_size < PAGE_SIZE)) {
                        bh_cend = (bh_end + vol->cluster_size - 1) >>
                                        vol->cluster_size_bits;
                        if ((bh_cend <= cpos || bh_cpos >= cend)) {
@@ -1208,7 +1208,7 @@ rl_not_mapped_enoent:
                wait_on_buffer(bh);
                if (likely(buffer_uptodate(bh))) {
                        page = bh->b_page;
-                       bh_pos = ((s64)page->index << PAGE_CACHE_SHIFT) +
+                       bh_pos = ((s64)page->index << PAGE_SHIFT) +
                                        bh_offset(bh);
                        /*
                         * If the buffer overflows the initialized size, need
@@ -1350,7 +1350,7 @@ rl_not_mapped_enoent:
                bh = head = page_buffers(page);
                do {
                        if (u == nr_pages &&
-                                       ((s64)page->index << PAGE_CACHE_SHIFT) +
+                                       ((s64)page->index << PAGE_SHIFT) +
                                        bh_offset(bh) >= end)
                                break;
                        if (!buffer_new(bh))
@@ -1422,7 +1422,7 @@ static inline int 
ntfs_commit_pages_after_non_resident_write(
                bool partial;
 
                page = pages[u];
-               bh_pos = (s64)page->index << PAGE_CACHE_SHIFT;
+               bh_pos = (s64)page->index << PAGE_SHIFT;
                bh = head = page_buffers(page);
                partial = false;
                do {
@@ -1639,7 +1639,7 @@ static int ntfs_commit_pages_after_write(struct page 
**pages,
                if (end < attr_len)
                        memcpy(kaddr + end, kattr + end, attr_len - end);
                /* Zero the region outside the end of the attribute value. */
-               memset(kaddr + attr_len, 0, PAGE_CACHE_SIZE - attr_len);
+               memset(kaddr + attr_len, 0, PAGE_SIZE - attr_len);
                flush_dcache_page(page);
                SetPageUptodate(page);
        }
@@ -1706,7 +1706,7 @@ static size_t ntfs_copy_from_user_iter(struct page 
**pages, unsigned nr_pages,
        unsigned len, copied;
 
        do {
-               len = PAGE_CACHE_SIZE - ofs;
+               len = PAGE_SIZE - ofs;
                if (len > bytes)
                        len = bytes;
                copied = iov_iter_copy_from_user_atomic(*pages, &data, ofs,
@@ -1724,14 +1724,14 @@ out:
        return total;
 err:
        /* Zero the rest of the target like __copy_from_user(). */
-       len = PAGE_CACHE_SIZE - copied;
+       len = PAGE_SIZE - copied;
        do {
                if (len > bytes)
                        len = bytes;
                zero_user(*pages, copied, len);
                bytes -= len;
                copied = 0;
-               len = PAGE_CACHE_SIZE;
+               len = PAGE_SIZE;
        } while (++pages < last_page);
        goto out;
 }
@@ -1787,8 +1787,8 @@ static ssize_t ntfs_perform_write(struct file *file, 
struct iov_iter *i,
         * attributes.
         */
        nr_pages = 1;
-       if (vol->cluster_size > PAGE_CACHE_SIZE && NInoNonResident(ni))
-               nr_pages = vol->cluster_size >> PAGE_CACHE_SHIFT;
+       if (vol->cluster_size > PAGE_SIZE && NInoNonResident(ni))
+               nr_pages = vol->cluster_size >> PAGE_SHIFT;
        last_vcn = -1;
        do {
                VCN vcn;
@@ -1796,9 +1796,9 @@ static ssize_t ntfs_perform_write(struct file *file, 
struct iov_iter *i,
                unsigned ofs, do_pages, u;
                size_t copied;
 
-               start_idx = idx = pos >> PAGE_CACHE_SHIFT;
-               ofs = pos & ~PAGE_CACHE_MASK;
-               bytes = PAGE_CACHE_SIZE - ofs;
+               start_idx = idx = pos >> PAGE_SHIFT;
+               ofs = pos & ~PAGE_MASK;
+               bytes = PAGE_SIZE - ofs;
                do_pages = 1;
                if (nr_pages > 1) {
                        vcn = pos >> vol->cluster_size_bits;
@@ -1832,7 +1832,7 @@ static ssize_t ntfs_perform_write(struct file *file, 
struct iov_iter *i,
                                if (lcn == LCN_HOLE) {
                                        start_idx = (pos & ~(s64)
                                                        vol->cluster_size_mask)
-                                                       >> PAGE_CACHE_SHIFT;
+                                                       >> PAGE_SHIFT;
                                        bytes = vol->cluster_size - (pos &
                                                        vol->cluster_size_mask);
                                        do_pages = nr_pages;
@@ -1871,12 +1871,12 @@ again:
                        if (unlikely(status)) {
                                do {
                                        unlock_page(pages[--do_pages]);
-                                       page_cache_release(pages[do_pages]);
+                                       put_page(pages[do_pages]);
                                } while (do_pages);
                                break;
                        }
                }
-               u = (pos >> PAGE_CACHE_SHIFT) - pages[0]->index;
+               u = (pos >> PAGE_SHIFT) - pages[0]->index;
                copied = ntfs_copy_from_user_iter(pages + u, do_pages - u, ofs,
                                        i, bytes);
                ntfs_flush_dcache_pages(pages + u, do_pages - u);
@@ -1889,7 +1889,7 @@ again:
                }
                do {
                        unlock_page(pages[--do_pages]);
-                       page_cache_release(pages[do_pages]);
+                       put_page(pages[do_pages]);
                } while (do_pages);
                if (unlikely(status < 0))
                        break;
@@ -1921,7 +1921,7 @@ again:
                }
        } while (iov_iter_count(i));
        if (cached_page)
-               page_cache_release(cached_page);
+               put_page(cached_page);
        ntfs_debug("Done.  Returning %s (written 0x%lx, status %li).",
                        written ? "written" : "status", (unsigned long)written,
                        (long)status);
diff --git a/fs/ntfs/index.c b/fs/ntfs/index.c
index 096c135691ae..0d645f357930 100644
--- a/fs/ntfs/index.c
+++ b/fs/ntfs/index.c
@@ -272,11 +272,11 @@ done:
 descend_into_child_node:
        /*
         * Convert vcn to index into the index allocation attribute in units
-        * of PAGE_CACHE_SIZE and map the page cache page, reading it from
+        * of PAGE_SIZE and map the page cache page, reading it from
         * disk if necessary.
         */
        page = ntfs_map_page(ia_mapping, vcn <<
-                       idx_ni->itype.index.vcn_size_bits >> PAGE_CACHE_SHIFT);
+                       idx_ni->itype.index.vcn_size_bits >> PAGE_SHIFT);
        if (IS_ERR(page)) {
                ntfs_error(sb, "Failed to map index page, error %ld.",
                                -PTR_ERR(page));
@@ -288,9 +288,9 @@ descend_into_child_node:
 fast_descend_into_child_node:
        /* Get to the index allocation block. */
        ia = (INDEX_ALLOCATION*)(kaddr + ((vcn <<
-                       idx_ni->itype.index.vcn_size_bits) & ~PAGE_CACHE_MASK));
+                       idx_ni->itype.index.vcn_size_bits) & ~PAGE_MASK));
        /* Bounds checks. */
-       if ((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE) {
+       if ((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_SIZE) {
                ntfs_error(sb, "Out of bounds check failed.  Corrupt inode "
                                "0x%lx or driver bug.", idx_ni->mft_no);
                goto unm_err_out;
@@ -323,7 +323,7 @@ fast_descend_into_child_node:
                goto unm_err_out;
        }
        index_end = (u8*)ia + idx_ni->itype.index.block_size;
-       if (index_end > kaddr + PAGE_CACHE_SIZE) {
+       if (index_end > kaddr + PAGE_SIZE) {
                ntfs_error(sb, "Index buffer (VCN 0x%llx) of inode 0x%lx "
                                "crosses page boundary.  Impossible!  Cannot "
                                "access!  This is probably a bug in the "
@@ -427,9 +427,9 @@ ia_done:
                 * the mapped page.
                 */
                if (old_vcn << vol->cluster_size_bits >>
-                               PAGE_CACHE_SHIFT == vcn <<
+                               PAGE_SHIFT == vcn <<
                                vol->cluster_size_bits >>
-                               PAGE_CACHE_SHIFT)
+                               PAGE_SHIFT)
                        goto fast_descend_into_child_node;
                unlock_page(page);
                ntfs_unmap_page(page);
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index d284f07eda77..f40972d6df90 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -868,12 +868,12 @@ skip_attr_list_load:
                                        ni->itype.index.block_size);
                        goto unm_err_out;
                }
-               if (ni->itype.index.block_size > PAGE_CACHE_SIZE) {
+               if (ni->itype.index.block_size > PAGE_SIZE) {
                        ntfs_error(vi->i_sb, "Index block size (%u) > "
-                                       "PAGE_CACHE_SIZE (%ld) is not "
+                                       "PAGE_SIZE (%ld) is not "
                                        "supported.  Sorry.",
                                        ni->itype.index.block_size,
-                                       PAGE_CACHE_SIZE);
+                                       PAGE_SIZE);
                        err = -EOPNOTSUPP;
                        goto unm_err_out;
                }
@@ -1585,10 +1585,10 @@ static int ntfs_read_locked_index_inode(struct inode 
*base_vi, struct inode *vi)
                                "two.", ni->itype.index.block_size);
                goto unm_err_out;
        }
-       if (ni->itype.index.block_size > PAGE_CACHE_SIZE) {
-               ntfs_error(vi->i_sb, "Index block size (%u) > PAGE_CACHE_SIZE "
+       if (ni->itype.index.block_size > PAGE_SIZE) {
+               ntfs_error(vi->i_sb, "Index block size (%u) > PAGE_SIZE "
                                "(%ld) is not supported.  Sorry.",
-                               ni->itype.index.block_size, PAGE_CACHE_SIZE);
+                               ni->itype.index.block_size, PAGE_SIZE);
                err = -EOPNOTSUPP;
                goto unm_err_out;
        }
diff --git a/fs/ntfs/lcnalloc.c b/fs/ntfs/lcnalloc.c
index 1711b710b641..27a24a42f712 100644
--- a/fs/ntfs/lcnalloc.c
+++ b/fs/ntfs/lcnalloc.c
@@ -283,15 +283,15 @@ runlist_element *ntfs_cluster_alloc(ntfs_volume *vol, 
const VCN start_vcn,
                        ntfs_unmap_page(page);
                }
                page = ntfs_map_page(mapping, last_read_pos >>
-                               PAGE_CACHE_SHIFT);
+                               PAGE_SHIFT);
                if (IS_ERR(page)) {
                        err = PTR_ERR(page);
                        ntfs_error(vol->sb, "Failed to map page.");
                        goto out;
                }
-               buf_size = last_read_pos & ~PAGE_CACHE_MASK;
+               buf_size = last_read_pos & ~PAGE_MASK;
                buf = page_address(page) + buf_size;
-               buf_size = PAGE_CACHE_SIZE - buf_size;
+               buf_size = PAGE_SIZE - buf_size;
                if (unlikely(last_read_pos + buf_size > i_size))
                        buf_size = i_size - last_read_pos;
                buf_size <<= 3;
diff --git a/fs/ntfs/logfile.c b/fs/ntfs/logfile.c
index c71de292c5ad..9d71213ca81e 100644
--- a/fs/ntfs/logfile.c
+++ b/fs/ntfs/logfile.c
@@ -381,7 +381,7 @@ static int ntfs_check_and_load_restart_page(struct inode 
*vi,
         * completely inside @rp, just copy it from there.  Otherwise map all
         * the required pages and copy the data from them.
         */
-       size = PAGE_CACHE_SIZE - (pos & ~PAGE_CACHE_MASK);
+       size = PAGE_SIZE - (pos & ~PAGE_MASK);
        if (size >= le32_to_cpu(rp->system_page_size)) {
                memcpy(trp, rp, le32_to_cpu(rp->system_page_size));
        } else {
@@ -394,8 +394,8 @@ static int ntfs_check_and_load_restart_page(struct inode 
*vi,
                /* Copy the remaining data one page at a time. */
                have_read = size;
                to_read = le32_to_cpu(rp->system_page_size) - size;
-               idx = (pos + size) >> PAGE_CACHE_SHIFT;
-               BUG_ON((pos + size) & ~PAGE_CACHE_MASK);
+               idx = (pos + size) >> PAGE_SHIFT;
+               BUG_ON((pos + size) & ~PAGE_MASK);
                do {
                        page = ntfs_map_page(vi->i_mapping, idx);
                        if (IS_ERR(page)) {
@@ -406,7 +406,7 @@ static int ntfs_check_and_load_restart_page(struct inode 
*vi,
                                        err = -EIO;
                                goto err_out;
                        }
-                       size = min_t(int, to_read, PAGE_CACHE_SIZE);
+                       size = min_t(int, to_read, PAGE_SIZE);
                        memcpy((u8*)trp + have_read, page_address(page), size);
                        ntfs_unmap_page(page);
                        have_read += size;
@@ -509,11 +509,11 @@ bool ntfs_check_logfile(struct inode *log_vi, 
RESTART_PAGE_HEADER **rp)
         * log page size if the page cache size is between the default log page
         * size and twice that.
         */
-       if (PAGE_CACHE_SIZE >= DefaultLogPageSize && PAGE_CACHE_SIZE <=
+       if (PAGE_SIZE >= DefaultLogPageSize && PAGE_SIZE <=
                        DefaultLogPageSize * 2)
                log_page_size = DefaultLogPageSize;
        else
-               log_page_size = PAGE_CACHE_SIZE;
+               log_page_size = PAGE_SIZE;
        log_page_mask = log_page_size - 1;
        /*
         * Use ntfs_ffs() instead of ffs() to enable the compiler to
@@ -539,7 +539,7 @@ bool ntfs_check_logfile(struct inode *log_vi, 
RESTART_PAGE_HEADER **rp)
         * to be empty.
         */
        for (pos = 0; pos < size; pos <<= 1) {
-               pgoff_t idx = pos >> PAGE_CACHE_SHIFT;
+               pgoff_t idx = pos >> PAGE_SHIFT;
                if (!page || page->index != idx) {
                        if (page)
                                ntfs_unmap_page(page);
@@ -550,7 +550,7 @@ bool ntfs_check_logfile(struct inode *log_vi, 
RESTART_PAGE_HEADER **rp)
                                goto err_out;
                        }
                }
-               kaddr = (u8*)page_address(page) + (pos & ~PAGE_CACHE_MASK);
+               kaddr = (u8*)page_address(page) + (pos & ~PAGE_MASK);
                /*
                 * A non-empty block means the logfile is not empty while an
                 * empty block after a non-empty block has been encountered
diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c
index 3014a36a255b..37b2501caaa4 100644
--- a/fs/ntfs/mft.c
+++ b/fs/ntfs/mft.c
@@ -61,16 +61,16 @@ static inline MFT_RECORD *map_mft_record_page(ntfs_inode 
*ni)
         * here if the volume was that big...
         */
        index = (u64)ni->mft_no << vol->mft_record_size_bits >>
-                       PAGE_CACHE_SHIFT;
-       ofs = (ni->mft_no << vol->mft_record_size_bits) & ~PAGE_CACHE_MASK;
+                       PAGE_SHIFT;
+       ofs = (ni->mft_no << vol->mft_record_size_bits) & ~PAGE_MASK;
 
        i_size = i_size_read(mft_vi);
        /* The maximum valid index into the page cache for $MFT's data. */
-       end_index = i_size >> PAGE_CACHE_SHIFT;
+       end_index = i_size >> PAGE_SHIFT;
 
        /* If the wanted index is out of bounds the mft record doesn't exist. */
        if (unlikely(index >= end_index)) {
-               if (index > end_index || (i_size & ~PAGE_CACHE_MASK) < ofs +
+               if (index > end_index || (i_size & ~PAGE_MASK) < ofs +
                                vol->mft_record_size) {
                        page = ERR_PTR(-ENOENT);
                        ntfs_error(vol->sb, "Attempt to read mft record 0x%lx, "
@@ -487,7 +487,7 @@ int ntfs_sync_mft_mirror(ntfs_volume *vol, const unsigned 
long mft_no,
        }
        /* Get the page containing the mirror copy of the mft record @m. */
        page = ntfs_map_page(vol->mftmirr_ino->i_mapping, mft_no >>
-                       (PAGE_CACHE_SHIFT - vol->mft_record_size_bits));
+                       (PAGE_SHIFT - vol->mft_record_size_bits));
        if (IS_ERR(page)) {
                ntfs_error(vol->sb, "Failed to map mft mirror page.");
                err = PTR_ERR(page);
@@ -497,7 +497,7 @@ int ntfs_sync_mft_mirror(ntfs_volume *vol, const unsigned 
long mft_no,
        BUG_ON(!PageUptodate(page));
        ClearPageUptodate(page);
        /* Offset of the mft mirror record inside the page. */
-       page_ofs = (mft_no << vol->mft_record_size_bits) & ~PAGE_CACHE_MASK;
+       page_ofs = (mft_no << vol->mft_record_size_bits) & ~PAGE_MASK;
        /* The address in the page of the mirror copy of the mft record @m. */
        kmirr = page_address(page) + page_ofs;
        /* Copy the mst protected mft record to the mirror. */
@@ -1178,8 +1178,8 @@ static int 
ntfs_mft_bitmap_find_and_alloc_free_rec_nolock(ntfs_volume *vol,
        for (; pass <= 2;) {
                /* Cap size to pass_end. */
                ofs = data_pos >> 3;
-               page_ofs = ofs & ~PAGE_CACHE_MASK;
-               size = PAGE_CACHE_SIZE - page_ofs;
+               page_ofs = ofs & ~PAGE_MASK;
+               size = PAGE_SIZE - page_ofs;
                ll = ((pass_end + 7) >> 3) - ofs;
                if (size > ll)
                        size = ll;
@@ -1190,7 +1190,7 @@ static int 
ntfs_mft_bitmap_find_and_alloc_free_rec_nolock(ntfs_volume *vol,
                 */
                if (size) {
                        page = ntfs_map_page(mftbmp_mapping,
-                                       ofs >> PAGE_CACHE_SHIFT);
+                                       ofs >> PAGE_SHIFT);
                        if (IS_ERR(page)) {
                                ntfs_error(vol->sb, "Failed to read mft "
                                                "bitmap, aborting.");
@@ -1328,13 +1328,13 @@ static int 
ntfs_mft_bitmap_extend_allocation_nolock(ntfs_volume *vol)
         */
        ll = lcn >> 3;
        page = ntfs_map_page(vol->lcnbmp_ino->i_mapping,
-                       ll >> PAGE_CACHE_SHIFT);
+                       ll >> PAGE_SHIFT);
        if (IS_ERR(page)) {
                up_write(&mftbmp_ni->runlist.lock);
                ntfs_error(vol->sb, "Failed to read from lcn bitmap.");
                return PTR_ERR(page);
        }
-       b = (u8*)page_address(page) + (ll & ~PAGE_CACHE_MASK);
+       b = (u8*)page_address(page) + (ll & ~PAGE_MASK);
        tb = 1 << (lcn & 7ull);
        down_write(&vol->lcnbmp_lock);
        if (*b != 0xff && !(*b & tb)) {
@@ -2103,14 +2103,14 @@ static int ntfs_mft_record_format(const ntfs_volume 
*vol, const s64 mft_no)
         * The index into the page cache and the offset within the page cache
         * page of the wanted mft record.
         */
-       index = mft_no << vol->mft_record_size_bits >> PAGE_CACHE_SHIFT;
-       ofs = (mft_no << vol->mft_record_size_bits) & ~PAGE_CACHE_MASK;
+       index = mft_no << vol->mft_record_size_bits >> PAGE_SHIFT;
+       ofs = (mft_no << vol->mft_record_size_bits) & ~PAGE_MASK;
        /* The maximum valid index into the page cache for $MFT's data. */
        i_size = i_size_read(mft_vi);
-       end_index = i_size >> PAGE_CACHE_SHIFT;
+       end_index = i_size >> PAGE_SHIFT;
        if (unlikely(index >= end_index)) {
                if (unlikely(index > end_index || ofs + vol->mft_record_size >=
-                               (i_size & ~PAGE_CACHE_MASK))) {
+                               (i_size & ~PAGE_MASK))) {
                        ntfs_error(vol->sb, "Tried to format non-existing mft "
                                        "record 0x%llx.", (long long)mft_no);
                        return -ENOENT;
@@ -2515,8 +2515,8 @@ mft_rec_already_initialized:
         * We now have allocated and initialized the mft record.  Calculate the
         * index of and the offset within the page cache page the record is in.
         */
-       index = bit << vol->mft_record_size_bits >> PAGE_CACHE_SHIFT;
-       ofs = (bit << vol->mft_record_size_bits) & ~PAGE_CACHE_MASK;
+       index = bit << vol->mft_record_size_bits >> PAGE_SHIFT;
+       ofs = (bit << vol->mft_record_size_bits) & ~PAGE_MASK;
        /* Read, map, and pin the page containing the mft record. */
        page = ntfs_map_page(vol->mft_ino->i_mapping, index);
        if (IS_ERR(page)) {
diff --git a/fs/ntfs/ntfs.h b/fs/ntfs/ntfs.h
index c581e26a350d..12de47b96ca9 100644
--- a/fs/ntfs/ntfs.h
+++ b/fs/ntfs/ntfs.h
@@ -43,7 +43,7 @@ typedef enum {
        NTFS_MAX_NAME_LEN       = 255,
        NTFS_MAX_ATTR_NAME_LEN  = 255,
        NTFS_MAX_CLUSTER_SIZE   = 64 * 1024,    /* 64kiB */
-       NTFS_MAX_PAGES_PER_CLUSTER = NTFS_MAX_CLUSTER_SIZE / PAGE_CACHE_SIZE,
+       NTFS_MAX_PAGES_PER_CLUSTER = NTFS_MAX_CLUSTER_SIZE / PAGE_SIZE,
 } NTFS_CONSTANTS;
 
 /* Global variables. */
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index 1b38abdaa3ed..ecb49870a680 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -823,14 +823,14 @@ static bool parse_ntfs_boot_sector(ntfs_volume *vol, 
const NTFS_BOOT_SECTOR *b)
        ntfs_debug("vol->mft_record_size_bits = %i (0x%x)",
                        vol->mft_record_size_bits, vol->mft_record_size_bits);
        /*
-        * We cannot support mft record sizes above the PAGE_CACHE_SIZE since
+        * We cannot support mft record sizes above the PAGE_SIZE since
         * we store $MFT/$DATA, the table of mft records in the page cache.
         */
-       if (vol->mft_record_size > PAGE_CACHE_SIZE) {
+       if (vol->mft_record_size > PAGE_SIZE) {
                ntfs_error(vol->sb, "Mft record size (%i) exceeds the "
-                               "PAGE_CACHE_SIZE on your system (%lu).  "
+                               "PAGE_SIZE on your system (%lu).  "
                                "This is not supported.  Sorry.",
-                               vol->mft_record_size, PAGE_CACHE_SIZE);
+                               vol->mft_record_size, PAGE_SIZE);
                return false;
        }
        /* We cannot support mft record sizes below the sector size. */
@@ -1096,7 +1096,7 @@ static bool check_mft_mirror(ntfs_volume *vol)
 
        ntfs_debug("Entering.");
        /* Compare contents of $MFT and $MFTMirr. */
-       mrecs_per_page = PAGE_CACHE_SIZE / vol->mft_record_size;
+       mrecs_per_page = PAGE_SIZE / vol->mft_record_size;
        BUG_ON(!mrecs_per_page);
        BUG_ON(!vol->mftmirr_size);
        mft_page = mirr_page = NULL;
@@ -1615,20 +1615,20 @@ static bool load_and_init_attrdef(ntfs_volume *vol)
        if (!vol->attrdef)
                goto iput_failed;
        index = 0;
-       max_index = i_size >> PAGE_CACHE_SHIFT;
-       size = PAGE_CACHE_SIZE;
+       max_index = i_size >> PAGE_SHIFT;
+       size = PAGE_SIZE;
        while (index < max_index) {
                /* Read the attrdef table and copy it into the linear buffer. */
 read_partial_attrdef_page:
                page = ntfs_map_page(ino->i_mapping, index);
                if (IS_ERR(page))
                        goto free_iput_failed;
-               memcpy((u8*)vol->attrdef + (index++ << PAGE_CACHE_SHIFT),
+               memcpy((u8*)vol->attrdef + (index++ << PAGE_SHIFT),
                                page_address(page), size);
                ntfs_unmap_page(page);
        };
-       if (size == PAGE_CACHE_SIZE) {
-               size = i_size & ~PAGE_CACHE_MASK;
+       if (size == PAGE_SIZE) {
+               size = i_size & ~PAGE_MASK;
                if (size)
                        goto read_partial_attrdef_page;
        }
@@ -1684,20 +1684,20 @@ static bool load_and_init_upcase(ntfs_volume *vol)
        if (!vol->upcase)
                goto iput_upcase_failed;
        index = 0;
-       max_index = i_size >> PAGE_CACHE_SHIFT;
-       size = PAGE_CACHE_SIZE;
+       max_index = i_size >> PAGE_SHIFT;
+       size = PAGE_SIZE;
        while (index < max_index) {
                /* Read the upcase table and copy it into the linear buffer. */
 read_partial_upcase_page:
                page = ntfs_map_page(ino->i_mapping, index);
                if (IS_ERR(page))
                        goto iput_upcase_failed;
-               memcpy((char*)vol->upcase + (index++ << PAGE_CACHE_SHIFT),
+               memcpy((char*)vol->upcase + (index++ << PAGE_SHIFT),
                                page_address(page), size);
                ntfs_unmap_page(page);
        };
-       if (size == PAGE_CACHE_SIZE) {
-               size = i_size & ~PAGE_CACHE_MASK;
+       if (size == PAGE_SIZE) {
+               size = i_size & ~PAGE_MASK;
                if (size)
                        goto read_partial_upcase_page;
        }
@@ -2471,14 +2471,14 @@ static s64 get_nr_free_clusters(ntfs_volume *vol)
        down_read(&vol->lcnbmp_lock);
        /*
         * Convert the number of bits into bytes rounded up, then convert into
-        * multiples of PAGE_CACHE_SIZE, rounding up so that if we have one
+        * multiples of PAGE_SIZE, rounding up so that if we have one
         * full and one partial page max_index = 2.
         */
-       max_index = (((vol->nr_clusters + 7) >> 3) + PAGE_CACHE_SIZE - 1) >>
-                       PAGE_CACHE_SHIFT;
-       /* Use multiples of 4 bytes, thus max_size is PAGE_CACHE_SIZE / 4. */
+       max_index = (((vol->nr_clusters + 7) >> 3) + PAGE_SIZE - 1) >>
+                       PAGE_SHIFT;
+       /* Use multiples of 4 bytes, thus max_size is PAGE_SIZE / 4. */
        ntfs_debug("Reading $Bitmap, max_index = 0x%lx, max_size = 0x%lx.",
-                       max_index, PAGE_CACHE_SIZE / 4);
+                       max_index, PAGE_SIZE / 4);
        for (index = 0; index < max_index; index++) {
                unsigned long *kaddr;
 
@@ -2491,7 +2491,7 @@ static s64 get_nr_free_clusters(ntfs_volume *vol)
                if (IS_ERR(page)) {
                        ntfs_debug("read_mapping_page() error. Skipping "
                                        "page (index 0x%lx).", index);
-                       nr_free -= PAGE_CACHE_SIZE * 8;
+                       nr_free -= PAGE_SIZE * 8;
                        continue;
                }
                kaddr = kmap_atomic(page);
@@ -2503,9 +2503,9 @@ static s64 get_nr_free_clusters(ntfs_volume *vol)
                 * ntfs_readpage().
                 */
                nr_free -= bitmap_weight(kaddr,
-                                       PAGE_CACHE_SIZE * BITS_PER_BYTE);
+                                       PAGE_SIZE * BITS_PER_BYTE);
                kunmap_atomic(kaddr);
-               page_cache_release(page);
+               put_page(page);
        }
        ntfs_debug("Finished reading $Bitmap, last index = 0x%lx.", index - 1);
        /*
@@ -2547,9 +2547,9 @@ static unsigned long 
__get_nr_free_mft_records(ntfs_volume *vol,
        pgoff_t index;
 
        ntfs_debug("Entering.");
-       /* Use multiples of 4 bytes, thus max_size is PAGE_CACHE_SIZE / 4. */
+       /* Use multiples of 4 bytes, thus max_size is PAGE_SIZE / 4. */
        ntfs_debug("Reading $MFT/$BITMAP, max_index = 0x%lx, max_size = "
-                       "0x%lx.", max_index, PAGE_CACHE_SIZE / 4);
+                       "0x%lx.", max_index, PAGE_SIZE / 4);
        for (index = 0; index < max_index; index++) {
                unsigned long *kaddr;
 
@@ -2562,7 +2562,7 @@ static unsigned long 
__get_nr_free_mft_records(ntfs_volume *vol,
                if (IS_ERR(page)) {
                        ntfs_debug("read_mapping_page() error. Skipping "
                                        "page (index 0x%lx).", index);
-                       nr_free -= PAGE_CACHE_SIZE * 8;
+                       nr_free -= PAGE_SIZE * 8;
                        continue;
                }
                kaddr = kmap_atomic(page);
@@ -2574,9 +2574,9 @@ static unsigned long 
__get_nr_free_mft_records(ntfs_volume *vol,
                 * ntfs_readpage().
                 */
                nr_free -= bitmap_weight(kaddr,
-                                       PAGE_CACHE_SIZE * BITS_PER_BYTE);
+                                       PAGE_SIZE * BITS_PER_BYTE);
                kunmap_atomic(kaddr);
-               page_cache_release(page);
+               put_page(page);
        }
        ntfs_debug("Finished reading $MFT/$BITMAP, last index = 0x%lx.",
                        index - 1);
@@ -2618,17 +2618,17 @@ static int ntfs_statfs(struct dentry *dentry, struct 
kstatfs *sfs)
        /* Type of filesystem. */
        sfs->f_type   = NTFS_SB_MAGIC;
        /* Optimal transfer block size. */
-       sfs->f_bsize  = PAGE_CACHE_SIZE;
+       sfs->f_bsize  = PAGE_SIZE;
        /*
         * Total data blocks in filesystem in units of f_bsize and since
         * inodes are also stored in data blocs ($MFT is a file) this is just
         * the total clusters.
         */
        sfs->f_blocks = vol->nr_clusters << vol->cluster_size_bits >>
-                               PAGE_CACHE_SHIFT;
+                               PAGE_SHIFT;
        /* Free data blocks in filesystem in units of f_bsize. */
        size          = get_nr_free_clusters(vol) << vol->cluster_size_bits >>
-                               PAGE_CACHE_SHIFT;
+                               PAGE_SHIFT;
        if (size < 0LL)
                size = 0LL;
        /* Free blocks avail to non-superuser, same as above on NTFS. */
@@ -2639,11 +2639,11 @@ static int ntfs_statfs(struct dentry *dentry, struct 
kstatfs *sfs)
        size = i_size_read(vol->mft_ino) >> vol->mft_record_size_bits;
        /*
         * Convert the maximum number of set bits into bytes rounded up, then
-        * convert into multiples of PAGE_CACHE_SIZE, rounding up so that if we
+        * convert into multiples of PAGE_SIZE, rounding up so that if we
         * have one full and one partial page max_index = 2.
         */
        max_index = ((((mft_ni->initialized_size >> vol->mft_record_size_bits)
-                       + 7) >> 3) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+                       + 7) >> 3) + PAGE_SIZE - 1) >> PAGE_SHIFT;
        read_unlock_irqrestore(&mft_ni->size_lock, flags);
        /* Number of inodes in filesystem (at this point in time). */
        sfs->f_files = size;
@@ -2765,15 +2765,15 @@ static int ntfs_fill_super(struct super_block *sb, void 
*opt, const int silent)
        if (!parse_options(vol, (char*)opt))
                goto err_out_now;
 
-       /* We support sector sizes up to the PAGE_CACHE_SIZE. */
-       if (bdev_logical_block_size(sb->s_bdev) > PAGE_CACHE_SIZE) {
+       /* We support sector sizes up to the PAGE_SIZE. */
+       if (bdev_logical_block_size(sb->s_bdev) > PAGE_SIZE) {
                if (!silent)
                        ntfs_error(sb, "Device has unsupported sector size "
                                        "(%i).  The maximum supported sector "
                                        "size on this architecture is %lu "
                                        "bytes.",
                                        bdev_logical_block_size(sb->s_bdev),
-                                       PAGE_CACHE_SIZE);
+                                       PAGE_SIZE);
                goto err_out_now;
        }
        /*
-- 
2.7.0

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