This is a note to let you know that I've just added the patch titled
btrfs: send: return EOPNOTSUPP on unknown flags
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
btrfs-send-return-eopnotsupp-on-unknown-flags.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f884a9f9e59206a2d41f265e7e403f080d10b493 Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@xxxxxxxx>
Date: Wed, 10 Jan 2024 17:48:44 +0100
Subject: btrfs: send: return EOPNOTSUPP on unknown flags
From: David Sterba <dsterba@xxxxxxxx>
commit f884a9f9e59206a2d41f265e7e403f080d10b493 upstream.
When some ioctl flags are checked we return EOPNOTSUPP, like for
BTRFS_SCRUB_SUPPORTED_FLAGS, BTRFS_SUBVOL_CREATE_ARGS_MASK or fallocate
modes. The EINVAL is supposed to be for a supported but invalid
values or combination of options. Fix that when checking send flags so
it's consistent with the rest.
CC: stable@xxxxxxxxxxxxxxx # 4.14+
Link: https://lore.kernel.org/linux-btrfs/CAL3q7H5rryOLzp3EKq8RTbjMHMHeaJubfpsVLF6H4qJnKCUR1w@xxxxxxxxxxxxxx/
Reviewed-by: Filipe Manana <fdmanana@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/send.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -7363,7 +7363,7 @@ long btrfs_ioctl_send(struct file *mnt_f
}
if (arg->flags & ~BTRFS_SEND_FLAG_MASK) {
- ret = -EINVAL;
+ ret = -EOPNOTSUPP;
goto out;
}
Patches currently in stable-queue which might be from dsterba@xxxxxxxx are
queue-5.4/btrfs-defrag-reject-unknown-flags-of-btrfs_ioctl_defrag_range_args.patch
queue-5.4/btrfs-ref-verify-free-ref-cache-before-clearing-mount-opt.patch
queue-5.4/btrfs-forbid-creating-subvol-qgroups.patch
queue-5.4/btrfs-send-return-eopnotsupp-on-unknown-flags.patch
queue-5.4/btrfs-forbid-deleting-live-subvol-qgroup.patch
queue-5.4/btrfs-tree-checker-fix-inline-ref-size-in-error-messages.patch
queue-5.4/btrfs-don-t-warn-if-discard-range-is-not-aligned-to-sector.patch
