In setup_namespace(), f_mountinfo is opened with fopen() at line 115
but is never closed. Multiple ksft_exit_fail_msg() calls exit the
program without closing this file descriptor, and the cleanup_namespace()
function registered with atexit() also doesn't close it.

Add fclose(f_mountinfo) in cleanup_namespace() to ensure the file
descriptor is properly closed on both normal and error exit paths,
since cleanup_namespace() is already registered as an atexit handler.

Signed-off-by: Malaya Kumar Rout <malayarout91@gmail.com>
Link: https://patch.msgid.link/20260704120437.99851-1-malayarout91@gmail.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

Fix typo "didnt't" -> "didn't" in statmount_test.c comment.

Signed-off-by: Wang Yan <wangyan01@kylinos.cn>
Link: https://patch.msgid.link/20260702015428.363642-1-wangyan01@kylinos.cn
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

Remove the local static wait_for_pid() definition from
statmount_test_ns.c as it conflicts with the extern declaration in
utils.h. The identical function is already provided by utils.c.

Fixes: 3ac7ea91f3d0 ("selftests: add FSMOUNT_NAMESPACE tests")
Cc: <stable@kernel.org> # mainline only
Signed-off-by: Christian Brauner <brauner@kernel.org>

Add a helper to allocate a statmount buffer and call statmount(). This
helper will be shared by multiple test suites that need to query mount
information via statmount().

Link: https://patch.msgid.link/20260122-work-fsmount-namespace-v1-5-5ef0a886e646@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>

Add tests for STATMOUNT_BY_FD flag, which adds support for passing a
file descriptors to statmount(). The fd can also be on a "unmounted"
mount (mount unmounted with MNT_DETACH), we also include tests for that.

Co-developed-by: Andrei Vagin <avagin@gmail.com>
Signed-off-by: Andrei Vagin <avagin@gmail.com>
Signed-off-by: Bhavik Sachdev <b.sachdev1904@gmail.com>
Link: https://patch.msgid.link/20251129091455.757724-4-b.sachdev1904@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>

This follow-up patch completes centralization of kselftest.h and
ksefltest_harness.h includes in remaining seltests files, replacing all
relative paths with a non-relative paths using shared -I include path in
lib.mk

Tested with gcc-13.3 and clang-18.1, and cross-compiled successfully on
riscv, arm64, x86_64 and powerpc arch.

[reddybalavignesh9979@gmail.com: add selftests include path for kselftest.h]
  Link: https://lkml.kernel.org/r/20251017090201.317521-1-reddybalavignesh9979@gmail.com
Link: https://lkml.kernel.org/r/20251016104409.68985-1-reddybalavignesh9979@gmail.com
Signed-off-by: Bala-Vignesh-Reddy <reddybalavignesh9979@gmail.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/lkml/20250820143954.33d95635e504e94df01930d0@linux-foundation.org/
Reviewed-by: Wei Yang <richard.weiyang@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Günther Noack <gnoack@google.com>
Cc: Jakub Kacinski <kuba@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mickael Salaun <mic@digikod.net>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Simon Horman <horms@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Add helper to utils.c and use it in statmount userns tests.

Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://lore.kernel.org/20250509133240.529330-8-amir73il@gmail.com
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

Add helper to utils.c and use it in mount-notify and statmount tests.

Linking with utils.c drags in a dependecy with libcap, so add it to the
Makefile of the tests.

Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://lore.kernel.org/20250509133240.529330-7-amir73il@gmail.com
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

Copy the required headers files (mount.h, nsfs.h) to the tools
include dir and define the statmount/listmount syscall numbers
to decouple dependency with headers_install for the common cases.

Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://lore.kernel.org/20250509133240.529330-3-amir73il@gmail.com
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (scsi_debug, ufs, lpfc, st, fnic, mpi3mr,
  mpt3sas) and the removal of cxlflash.

  The only non-trivial core change is an addition to unit attention
  handling to recognize UAs for power on/reset and new media so the tape
  driver can use it"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (107 commits)
  scsi: st: Tighten the page format heuristics with MODE SELECT
  scsi: st: ERASE does not change tape location
  scsi: st: Fix array overflow in st_setup()
  scsi: target: tcm_loop: Fix wrong abort tag
  scsi: lpfc: Restore clearing of NLP_UNREG_INP in ndlp->nlp_flag
  scsi: hisi_sas: Fixed failure to issue vendor specific commands
  scsi: fnic: Remove unnecessary NUL-terminations
  scsi: fnic: Remove redundant flush_workqueue() calls
  scsi: core: Use a switch statement when attaching VPD pages
  scsi: ufs: renesas: Add initialization code for R-Car S4-8 ES1.2
  scsi: ufs: renesas: Add reusable functions
  scsi: ufs: renesas: Refactor 0x10ad/0x10af PHY settings
  scsi: ufs: renesas: Remove register control helper function
  scsi: ufs: renesas: Add register read to remove save/set/restore
  scsi: ufs: renesas: Replace init data by init code
  scsi: ufs: dt-bindings: renesas,ufs: Add calibration data
  scsi: mpi3mr: Task Abort EH Support
  scsi: storvsc: Don't report the host packet status as the hv status
  scsi: isci: Make most module parameters static
  scsi: megaraid_sas: Make most module parameters static
  ...