Hi Chandan, Please pull this branch with changes. As usual, I did a test-merge with the main upstream branch as of a few minutes ago, and didn't see any conflicts. Please let me know if you encounter any problems. --D The following changes since commit cfa2df68b7ceb49ac9eb2d295ab0c5974dbf17e7: xfs: fix an agbno overflow in __xfs_getfsmap_datadev (2023-09-11 08:39:02 -0700) are available in the Git repository at: https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git tags/fix-percpu-lists-6.6_2023-09-12 for you to fetch changes up to ef7d9593390a050c50eba5fc02d2cb65a1104434: xfs: remove CPU hotplug infrastructure (2023-09-11 08:39:04 -0700) ---------------------------------------------------------------- xfs: fix cpu hotplug mess [v2] Ritesh and Eric separately reported crashes in XFS's hook function for CPU hot remove if the remove event races with a filesystem being mounted. I also noticed via generic/650 that once in a while the log will shut down over an apparent overrun of a transaction reservation; this turned out to be due to CIL percpu list aggregation failing to pick up the percpu list items from a dying CPU. Either way, the solution here is to eliminate the need for a CPU dying hook by using a private cpumask to track which CPUs have added to their percpu lists directly, and iterating with that mask. This fixes the log problems and (I think) solves a theoretical UAF bug in the inodegc code too. v2: fix a few put_cpu uses, add necessary memory barriers, and use atomic cpumask operations This has been lightly tested with fstests. Enjoy! Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx> ---------------------------------------------------------------- Darrick J. Wong (4): xfs: fix per-cpu CIL structure aggregation racing with dying cpus xfs: use per-mount cpumask to track nonempty percpu inodegc lists xfs: remove the all-mounts list xfs: remove CPU hotplug infrastructure fs/xfs/xfs_icache.c | 78 +++++++++++++++-------------------------- fs/xfs/xfs_icache.h | 1 - fs/xfs/xfs_log_cil.c | 52 +++++++++------------------- fs/xfs/xfs_log_priv.h | 14 ++++---- fs/xfs/xfs_mount.h | 7 ++-- fs/xfs/xfs_super.c | 86 ++-------------------------------------------- include/linux/cpuhotplug.h | 1 - 7 files changed, 56 insertions(+), 183 deletions(-)
