From: Jeff Layton jlayton@kernel.org
[ Upstream commit 03dbab3bba5f009d053635c729d1244f2c8bad38 ]
Nathan reported that he was seeing the new warning in setattr_copy_mgtime pop when starting podman containers. Overlayfs is trying to set the atime and mtime via notify_change without also setting the ctime.
POSIX states that when the atime and mtime are updated via utimes() that we must also update the ctime to the current time. The situation with overlayfs copy-up is analogies, so add ATTR_CTIME to the bitmask. notify_change will fill in the value.
Reported-by: Nathan Chancellor nathan@kernel.org Signed-off-by: Jeff Layton jlayton@kernel.org Tested-by: Nathan Chancellor nathan@kernel.org Acked-by: Christian Brauner brauner@kernel.org Acked-by: Amir Goldstein amir73il@gmail.com Message-Id: 20230913-ctime-v1-1-c6bc509cbc27@kernel.org Signed-off-by: Christian Brauner brauner@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/overlayfs/copy_up.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index 864e821c3910b..0ed70eff9cb9e 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -306,7 +306,7 @@ static int ovl_set_timestamps(struct dentry *upperdentry, struct kstat *stat) { struct iattr attr = { .ia_valid = - ATTR_ATIME | ATTR_MTIME | ATTR_ATIME_SET | ATTR_MTIME_SET, + ATTR_ATIME | ATTR_MTIME | ATTR_ATIME_SET | ATTR_MTIME_SET | ATTR_CTIME, .ia_atime = stat->atime, .ia_mtime = stat->mtime, };