For better performance, we need to use kmap_atomic instead of kmap.
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
fs/f2fs/inline.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 825995f..c03653d 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -55,11 +55,10 @@ int f2fs_read_inline_data(struct inode *inode, struct page
*page)
/* Copy the whole inline data block */
src_addr = inline_data_addr(ipage);
- dst_addr = kmap(page);
+ dst_addr = kmap_atomic(page);
memcpy(dst_addr, src_addr, MAX_INLINE_DATA);
- kunmap(page);
+ kunmap_atomic(dst_addr);
f2fs_put_page(ipage, 1);
-
out:
SetPageUptodate(page);
unlock_page(page);
@@ -105,9 +104,9 @@ static int __f2fs_convert_inline_data(struct inode *inode,
struct page *page)
/* Copy the whole inline data block */
src_addr = inline_data_addr(ipage);
- dst_addr = kmap(page);
+ dst_addr = kmap_atomic(page);
memcpy(dst_addr, src_addr, MAX_INLINE_DATA);
- kunmap(page);
+ kunmap_atomic(dst_addr);
SetPageUptodate(page);
/* write data page to try to make data consistent */
@@ -177,10 +176,10 @@ int f2fs_write_inline_data(struct inode *inode,
f2fs_wait_on_page_writeback(ipage, NODE);
zero_user_segment(ipage, INLINE_DATA_OFFSET,
INLINE_DATA_OFFSET + MAX_INLINE_DATA);
- src_addr = kmap(page);
+ src_addr = kmap_atomic(page);
dst_addr = inline_data_addr(ipage);
memcpy(dst_addr, src_addr, size);
- kunmap(page);
+ kunmap_atomic(src_addr);
set_inode_flag(F2FS_I(inode), FI_APPEND_WRITE);
sync_inode_page(&dn);
@@ -351,7 +350,7 @@ int f2fs_convert_inline_dir(struct inode *dir, struct page
*ipage,
f2fs_wait_on_page_writeback(page, DATA);
zero_user_segment(page, 0, PAGE_CACHE_SIZE);
- dentry_blk = kmap(page);
+ dentry_blk = kmap_atomic(page);
/* copy data from inline dentry block to new dentry block */
memcpy(dentry_blk->dentry_bitmap, inline_dentry->dentry_bitmap,
@@ -363,7 +362,7 @@ int f2fs_convert_inline_dir(struct inode *dir, struct page
*ipage,
memcpy(dentry_blk->filename, inline_dentry->filename,
NR_INLINE_DENTRY * F2FS_SLOT_LEN);
- kunmap(page);
+ kunmap_atomic(dentry_blk);
SetPageUptodate(page);
set_page_dirty(page);
--
2.1.1
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