From 3bc2ac2f8f0b78a13140fc72022771efe0c9b778 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 12 Aug 2024 12:30:52 -0400 Subject: [PATCH] btrfs: update target inode's ctime on unlink Unlink changes the link count on the target inode. POSIX mandates that the ctime must also change when this occurs. According to https://pubs.opengroup.org/onlinepubs/9699919799/functions/unlink.html: "Upon successful completion, unlink() shall mark for update the last data modification and last file status change timestamps of the parent directory. Also, if the file's link count is not 0, the last file status change timestamp of the file shall be marked for update." Signed-off-by: Jeff Layton Reviewed-by: David Sterba [ add link to the opengroup docs ] Signed-off-by: David Sterba --- fs/btrfs/inode.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 333b0e8587a2..b1b6564ab68f 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4195,6 +4195,7 @@ err: btrfs_i_size_write(dir, dir->vfs_inode.i_size - name->len * 2); inode_inc_iversion(&inode->vfs_inode); + inode_set_ctime_current(&inode->vfs_inode); inode_inc_iversion(&dir->vfs_inode); inode_set_mtime_to_ts(&dir->vfs_inode, inode_set_ctime_current(&dir->vfs_inode)); ret = btrfs_update_inode(trans, dir); -- 2.50.1