Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fc0e15a667121e02686cc52679f6272959fb60cc
Commit: fc0e15a667121e02686cc52679f6272959fb60cc
Parent: f8628a14a27eb4512a1ede43de1d9db4d9f92bc3
Author: Eric Sandeen <[EMAIL PROTECTED]>
AuthorDate: Wed Jul 18 09:20:44 2007 -0400
Committer: Theodore Ts'o <[EMAIL PROTECTED]>
CommitDate: Wed Jul 18 09:20:44 2007 -0400
Use zero_user_page() in ext4 where possible
Signed-off-by: Eric Sandeen <[EMAIL PROTECTED]>
Signed-off-by: "Theodore Ts'o" <[EMAIL PROTECTED]>
---
fs/ext4/inode.c | 11 ++---------
1 files changed, 2 insertions(+), 9 deletions(-)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index f6d8528..125aca7 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1766,7 +1766,6 @@ int ext4_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));
@@ -1778,10 +1777,7 @@ int ext4_block_truncate_page(handle_t *handle, struct
page *page,
*/
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;
}
@@ -1834,10 +1830,7 @@ int ext4_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");
-
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