If btrfs_start_write_no_snapshotting fails (returns 0) it means there is snapshot in progress hence resource is busy and not that we are out of space. Change the return value to correctly reflect this. Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx> --- fs/btrfs/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 2030b9bcb977..ce1dec51ff92 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1547,7 +1547,7 @@ static noinline int check_can_nocow(struct btrfs_inode *inode, loff_t pos, ret = btrfs_start_write_no_snapshotting(root); if (!ret) - return -ENOSPC; + return -EBUSY; lockstart = round_down(pos, fs_info->sectorsize); lockend = round_up(pos + *write_bytes, -- 2.17.1
