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Qu Wenruo ed7e8beb20 btrfs: scrub: reject unsupported scrub flags ... commit 604e6681e1 upstream. Since the introduction of scrub interface, the only flag that we support is BTRFS_SCRUB_READONLY. Thus there is no sanity checks, if there are some undefined flags passed in, we just ignore them. This is problematic if we want to introduce new scrub flags, as we have no way to determine if such flags are supported. Address the problem by introducing a check for the flags, and if unsupported flags are set, return -EOPNOTSUPP to inform the user space. This check should be backported for all supported kernels before any new scrub flags are introduced. CC: stable@vger.kernel.org # 4.14+ Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2023-05-11 23:00:39 +09:00
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asm-generic	signal: Deliver SIGTRAP on perf event asynchronously if blocked	2022-06-09 10:22:48 +02:00
drm	drm/fourcc: Add packed 10bit YUV 4:2:0 format	2022-12-31 13:14:10 +01:00
linux	btrfs: scrub: reject unsupported scrub flags	2023-05-11 23:00:39 +09:00
misc	habanalabs: fix resetting args in wait for CS IOCTL	2021-09-29 12:18:48 +03:00
mtd	mtd: add OTP (one-time-programmable) erase ioctl	2021-03-28 19:24:54 +02:00
rdma	RDMA/mlx5: Don't compare mkey tags in DEVX indirect mkey	2022-10-26 12:35:03 +02:00
scsi	scsi: fc: Add EDC ELS definition	2021-08-24 22:56:33 -04:00
sound	ALSA: seq: fix undefined behavior in bit shift for SNDRV_SEQ_FILTER_USE_EVENT	2022-12-31 13:14:11 +01:00
video	License cleanup: add SPDX license identifier to uapi header files with a license	2017-11-02 11:20:11 +01:00
xen	xen/gntdev: gntdev.h: drop a duplicated word	2020-08-03 07:46:42 +02:00
Kbuild	kbuild: re-implement Makefile.headersinst without recursion	2019-06-15 19:57:02 +09:00