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fuse: update inode size and invalidate attributes on fallocate

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An fallocate request without FALLOC_FL_KEEP_SIZE set can extend the
size of a file. Update the inode size after a successful fallocate.

Also invalidate the inode attributes after a successful fallocate
to ensure we pick up the latest attribute values (i.e., i_blocks).

Signed-off-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
This commit is contained in:
Brian Foster 2013-05-17 15:27:34 -04:00 committed by Miklos Szeredi
parent 3634a63278
commit bee6c30780
1 changed files with 12 additions and 3 deletions
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15
fs/fuse/file.c
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@ -2492,11 +2492,20 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
}
fuse_put_request(fc, req);
if (err)
goto out;
/* we could have extended the file */
if (!(mode & FALLOC_FL_KEEP_SIZE))
fuse_write_update_size(inode, offset + length);
if (mode & FALLOC_FL_PUNCH_HOLE)
truncate_pagecache_range(inode, offset, offset + length - 1);
fuse_invalidate_attr(inode);
out:
if (mode & FALLOC_FL_PUNCH_HOLE) {
if (!err)
truncate_pagecache_range(inode, offset,
offset + length - 1);
fuse_release_nowrite(inode);
mutex_unlock(&inode->i_mutex);
}