partially overwritten pages, if needed. And lock the pages,
so that nobody else can access these until we are done.
We get number of actual blocks needed as a result. */
- blocks_to_allocate =
- reiserfs_prepare_file_region_for_write(inode, pos,
- num_pages,
- write_bytes,
- prepared_pages);
- if (blocks_to_allocate < 0) {
- res = blocks_to_allocate;
+ res = reiserfs_prepare_file_region_for_write(inode, pos,
+ num_pages,
+ write_bytes,
+ prepared_pages);
+ if (res < 0) {
reiserfs_release_claimed_blocks(inode->i_sb,
num_pages <<
(PAGE_CACHE_SHIFT -
break;
}
+ blocks_to_allocate = res;
+
/* First we correct our estimate of how many blocks we need */
reiserfs_release_claimed_blocks(inode->i_sb,
(num_pages <<
buf += write_bytes;
*ppos = pos += write_bytes;
count -= write_bytes;
- balance_dirty_pages_ratelimited(inode->i_mapping);
+ balance_dirty_pages_ratelimited_nr(inode->i_mapping, num_pages);
}
/* this is only true on error */
}
}
- if ((file->f_flags & O_SYNC) || IS_SYNC(inode))
- res =
- generic_osync_inode(inode, file->f_mapping,
- OSYNC_METADATA | OSYNC_DATA);
+ if (likely(res >= 0) &&
+ (unlikely((file->f_flags & O_SYNC) || IS_SYNC(inode))))
+ res = generic_osync_inode(inode, file->f_mapping,
+ OSYNC_METADATA | OSYNC_DATA);
mutex_unlock(&inode->i_mutex);
reiserfs_async_progress_wait(inode->i_sb);