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);
io = &xip->i_iocore;
mp = io->io_mount;
- vfs_wait_for_freeze(vp->v_vfsp, SB_FREEZE_WRITE);
+ xfs_wait_for_freeze(mp, SB_FREEZE_WRITE);
if (XFS_FORCED_SHUTDOWN(mp))
return -EIO;
/* Handle various SYNC-type writes */
if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) {
- error = xfs_write_sync_logforce(mp, xip);
- if (error)
- goto out_unlock_internal;
-
+ int error2;
xfs_rwunlock(xip, locktype);
if (need_i_mutex)
mutex_unlock(&inode->i_mutex);
-
- error = sync_page_range(inode, mapping, pos, ret);
+ error2 = sync_page_range(inode, mapping, pos, ret);
if (!error)
- error = -ret;
+ error = error2;
if (need_i_mutex)
mutex_lock(&inode->i_mutex);
xfs_rwlock(xip, locktype);
+ error2 = xfs_write_sync_logforce(mp, xip);
+ if (!error)
+ error = error2;
}
out_unlock_internal: