The patch titled
ext4: zero_user_page() conversions
has been added to the -mm tree. Its filename is
ext4-zero_user_page-conversion.patch
*** 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
------------------------------------------------------
Subject: ext4: zero_user_page() conversions
From: Eric Sandeen <sandeen@xxxxxxxxxx>
Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ext4/inode.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff -puN fs/ext4/inode.c~ext4-zero_user_page-conversion fs/ext4/inode.c
--- a/fs/ext4/inode.c~ext4-zero_user_page-conversion
+++ a/fs/ext4/inode.c
@@ -1830,7 +1830,6 @@ int ext4_block_truncate_page(handle_t *h
struct inode *inode = mapping->host;
struct buffer_head *bh;
int err = 0;
- void *kaddr;
if ((EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) &&
test_opt(inode->i_sb, EXTENTS) &&
@@ -1847,10 +1846,7 @@ int ext4_block_truncate_page(handle_t *h
*/
if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
ext4_should_writeback_data(inode) && PageUptodate(page)) {
- kaddr = kmap_atomic(page, KM_USER0);
- memset(kaddr + offset, 0, length);
- flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ zero_user_page(page, offset, length, KM_USER0);
set_page_dirty(page);
goto unlock;
}
@@ -1903,10 +1899,7 @@ int ext4_block_truncate_page(handle_t *h
goto unlock;
}
- kaddr = kmap_atomic(page, KM_USER0);
- memset(kaddr + offset, 0, length);
- flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ zero_user_page(page, offset, length, KM_USER0);
BUFFER_TRACE(bh, "zeroed end of block");
_
Patches currently in -mm which might be from sandeen@xxxxxxxxxx are
cifs-zero_user_page-conversion.patch
gfs2-zero_user_page-conversion.patch
ocfs2-zero_user_page-conversion.patch
ext4-zero_user_page-conversion.patch
-
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