The patch titled
Use page_cache_xxx in fs/splice.c
has been added to the -mm tree. Its filename is
use-page_cache_xxx-in-fs-splicec.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: Use page_cache_xxx in fs/splice.c
From: Christoph Lameter <[EMAIL PROTECTED]>
Use page_cache_xxx in fs/splice.c
Reviewed-by: Dave Chinner <[EMAIL PROTECTED]>
Signed-off-by: Christoph Lameter <[EMAIL PROTECTED]>
Cc: Jens Axboe <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
fs/splice.c | 27 ++++++++++++++-------------
1 file changed, 14 insertions(+), 13 deletions(-)
diff -puN fs/splice.c~use-page_cache_xxx-in-fs-splicec fs/splice.c
--- a/fs/splice.c~use-page_cache_xxx-in-fs-splicec
+++ a/fs/splice.c
@@ -286,9 +286,9 @@ __generic_file_splice_read(struct file *
.spd_release = spd_release_page,
};
- index = *ppos >> PAGE_CACHE_SHIFT;
- loff = *ppos & ~PAGE_CACHE_MASK;
- req_pages = (len + loff + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+ index = page_cache_index(mapping, *ppos);
+ loff = page_cache_offset(mapping, *ppos);
+ req_pages = page_cache_next(mapping, len + loff);
nr_pages = min(req_pages, (unsigned)PIPE_BUFFERS);
/*
@@ -343,7 +343,7 @@ __generic_file_splice_read(struct file *
* Now loop over the map and see if we need to start IO on any
* pages, fill in the partial map, etc.
*/
- index = *ppos >> PAGE_CACHE_SHIFT;
+ index = page_cache_index(mapping, *ppos);
nr_pages = spd.nr_pages;
spd.nr_pages = 0;
for (page_nr = 0; page_nr < nr_pages; page_nr++) {
@@ -355,7 +355,8 @@ __generic_file_splice_read(struct file *
/*
* this_len is the max we'll use from this page
*/
- this_len = min_t(unsigned long, len, PAGE_CACHE_SIZE - loff);
+ this_len = min_t(unsigned long, len,
+ page_cache_size(mapping) - loff);
page = pages[page_nr];
if (PageReadahead(page))
@@ -415,7 +416,7 @@ fill_it:
* i_size must be checked after PageUptodate.
*/
isize = i_size_read(mapping->host);
- end_index = (isize - 1) >> PAGE_CACHE_SHIFT;
+ end_index = page_cache_index(mapping, isize - 1);
if (unlikely(!isize || index > end_index))
break;
@@ -429,7 +430,7 @@ fill_it:
/*
* max good bytes in this page
*/
- plen = ((isize - 1) & ~PAGE_CACHE_MASK) + 1;
+ plen = page_cache_offset(mapping, isize - 1) + 1;
if (plen <= loff)
break;
@@ -454,7 +455,7 @@ fill_it:
*/
while (page_nr < nr_pages)
page_cache_release(pages[page_nr++]);
- in->f_ra.prev_pos = (loff_t)index << PAGE_CACHE_SHIFT;
+ in->f_ra.prev_pos = page_cache_pos(mapping, index, 0);
if (spd.nr_pages)
return splice_to_pipe(pipe, &spd);
@@ -580,11 +581,11 @@ static int pipe_to_file(struct pipe_inod
if (unlikely(ret))
return ret;
- offset = sd->pos & ~PAGE_CACHE_MASK;
+ offset = page_cache_offset(mapping, sd->pos);
this_len = sd->len;
- if (this_len + offset > PAGE_CACHE_SIZE)
- this_len = PAGE_CACHE_SIZE - offset;
+ if (this_len + offset > page_cache_size(mapping))
+ this_len = page_cache_size(mapping) - offset;
ret = pagecache_write_begin(file, mapping, sd->pos, this_len,
AOP_FLAG_UNINTERRUPTIBLE, &page, &fsdata);
@@ -791,7 +792,7 @@ generic_file_splice_write_nolock(struct
unsigned long nr_pages;
*ppos += ret;
- nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+ nr_pages = page_cache_next(mapping, ret);
/*
* If file or inode is SYNC and we actually wrote some data,
@@ -853,7 +854,7 @@ generic_file_splice_write(struct pipe_in
unsigned long nr_pages;
*ppos += ret;
- nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+ nr_pages = page_cache_next(mapping, ret);
/*
* If file or inode is SYNC and we actually wrote some data,
_
Patches currently in -mm which might be from [EMAIL PROTECTED] are
define-functions-for-page-cache-handling.patch
gregkh-driver-kset-move-sys-slab-to-sys-kernel-slab-slabinfo-fallback-from-sys-kernel-slab-to-sys-slab.patch
use-page_cache_xxx-in-fs-splicec.patch
git-unionfs.patch
use-page_cache_xxx-for-fs-xfs.patch
git-slub.patch
x86-cast-cmpxchg-and-cmpxchg_local-result-for-386-and-486.patch
remove-set_migrateflags.patch
use-page_cache_xxx-functions-in-mm-filemapc.patch
use-page_cache_xxx-in-mm-page-writebackc.patch
use-page_cache_xxx-in-mm-truncatec.patch
use-page_cache_xxx-in-mm-rmapc.patch
use-page_cache_xxx-in-mm-filemap_xipc.patch
use-page_cache_xxx-in-mm-migratec.patch
use-page_cache_xxx-in-fs-libfsc.patch
use-page_cache_xxx-in-fs-sync.patch
use-page_cache_xxx-in-fs-bufferc.patch
use-page_cache_xxx-in-mm-mpagec.patch
use-page_cache_xxx-in-mm-fadvisec.patch
use-page_cache_xxx-in-ext2.patch
use-page_cache_xxx-in-fs-ext3.patch
use-page_cache_xxx-in-fs-reiserfs.patch
use-page_cache_xxx-in-fs-ext4.patch
reiser4.patch
reiser4-portion-of-zero_user-cleanup-patch.patch
page-owner-tracking-leak-detector.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
