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ext3: use zero_user_page

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Use zero_user_page() instead of open-coding it.

Signed-off-by: Nate Diller <nate.diller@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nate Diller 2007-05-09 02:35:08 -07:00 committed by Linus Torvalds
parent f36dca90e6
commit 0c11d7a9e9
1 changed files with 2 additions and 10 deletions
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12
fs/ext3/inode.c
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@ -1767,7 +1767,6 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
struct inode *inode = mapping->host;
struct buffer_head *bh;
int err = 0;
void *kaddr;
blocksize = inode->i_sb->s_blocksize;
length = blocksize - (offset & (blocksize - 1));
@ -1779,10 +1778,7 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
*/
if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
ext3_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;
}
@ -1835,11 +1831,7 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
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");
err = 0;