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xfs: convert to new aops

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Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: David Chinner <dgc@sgi.com>
Cc: Timothy Shimmin <tes@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nick Piggin
2007-10-16 01:25:06 -07:00
committed by Linus Torvalds
parent bfc1af650a
commit d79689c703
2 changed files with 24 additions and 30 deletions
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35
fs/xfs/linux-2.6/xfs_lrw.c
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@ -134,45 +134,34 @@ xfs_iozero(
loff_t pos, /* offset in file */
size_t count) /* size of data to zero */
{
unsigned bytes;
struct page *page;
struct address_space *mapping;
int status;
mapping = ip->i_mapping;
do {
unsigned long index, offset;
unsigned offset, bytes;
void *fsdata;
offset = (pos & (PAGE_CACHE_SIZE -1)); /* Within page */
index = pos >> PAGE_CACHE_SHIFT;
bytes = PAGE_CACHE_SIZE - offset;
if (bytes > count)
bytes = count;
status = -ENOMEM;
page = grab_cache_page(mapping, index);
if (!page)
break;
status = mapping->a_ops->prepare_write(NULL, page, offset,
offset + bytes);
status = pagecache_write_begin(NULL, mapping, pos, bytes,
AOP_FLAG_UNINTERRUPTIBLE,
&page, &fsdata);
if (status)
goto unlock;
break;
zero_user_page(page, offset, bytes, KM_USER0);
status = mapping->a_ops->commit_write(NULL, page, offset,
offset + bytes);
if (!status) {
pos += bytes;
count -= bytes;
}
unlock:
unlock_page(page);
page_cache_release(page);
if (status)
break;
status = pagecache_write_end(NULL, mapping, pos, bytes, bytes,
page, fsdata);
WARN_ON(status <= 0); /* can't return less than zero! */
pos += bytes;
count -= bytes;
status = 0;
} while (count);
return (-status);