Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8803863a9051582081fb2bcca3a6dc8fddaed93c
Commit: 8803863a9051582081fb2bcca3a6dc8fddaed93c
Parent: 4a379e6657ae2dd910f9f06d46bd7c05fbe9ed5c
Author: Nate <[EMAIL PROTECTED]>
AuthorDate: Mon Jul 16 15:45:13 2007 +0000
Committer: Steve French <[EMAIL PROTECTED]>
CommitDate: Mon Jul 16 15:45:13 2007 +0000
[CIFS] use simple_prepare_write to zero page data
It's common for file systems to need to zero data on either side of a
write, if a page is not Uptodate during prepare_write. It just so happens
that simple_prepare_write() in libfs.c does exactly that, so we can avoid
duplication and just call that function to zero page data.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Steve French <[EMAIL PROTECTED]>
---
fs/cifs/file.c | 9 +--------
1 files changed, 1 insertions(+), 8 deletions(-)
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index b67f1da..0620fea 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1966,14 +1966,7 @@ static int cifs_prepare_write(struct file *file, struct
page *page,
* We don't need to read data beyond the end of the file.
* zero it, and set the page uptodate
*/
- void *kaddr = kmap_atomic(page, KM_USER0);
-
- if (from)
- memset(kaddr, 0, from);
- if (to < PAGE_CACHE_SIZE)
- memset(kaddr + to, 0, PAGE_CACHE_SIZE - to);
- flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ simple_prepare_write(file, page, from, to);
SetPageUptodate(page);
} else if ((file->f_flags & O_ACCMODE) != O_WRONLY) {
/* might as well read a page, it is fast enough */
-
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