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Commit bee6c307 authored by Brian Foster's avatar Brian Foster Committed by Miklos Szeredi
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fuse: update inode size and invalidate attributes on fallocate 



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: default avatarBrian Foster <bfoster@redhat.com>
Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
parent 3634a632

fs/fuse/file.c

+12 −3
Original line number Diff line number Diff line
@@ -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);

	}