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| author | Dave Chinner <dchinner@redhat.com> | 2021-08-06 11:05:38 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-08-06 11:05:38 -0700 |
| commit | 0ed17f01c85401abf1706d9825796fc6661c0889 (patch) | |
| tree | 7be682a813282924b77a75d9eeb9ad63d3b9d0d3 /fs/xfs/xfs_mount.h | |
| parent | f1653c2e2831e9db6cd68473bbec581782df03a5 (diff) | |
| download | linux-0ed17f01c85401abf1706d9825796fc6661c0889.tar.gz | |
xfs: introduce all-mounts list for cpu hotplug notifications
The inode inactivation and CIL tracking percpu structures are
per-xfs_mount structures. That means when we get a CPU dead
notification, we need to then iterate all the per-cpu structure
instances to process them. Rather than keeping linked lists of
per-cpu structures in each subsystem, add a list of all xfs_mounts
that the generic xfs_cpu_dead() function will iterate and call into
each subsystem appropriately.
This allows us to handle both per-mount and global XFS percpu state
from xfs_cpu_dead(), and avoids the need to link subsystem
structures that can be easily found from the xfs_mount into their
own global lists.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
[djwong: expand some comments about mount list setup ordering rules]
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/xfs_mount.h')
| -rw-r--r-- | fs/xfs/xfs_mount.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index c78b63fe779a..ed7064596f94 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -82,6 +82,7 @@ typedef struct xfs_mount { xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ + struct list_head m_mount_list; /* global mount list */ /* * Optional cache of rt summary level per bitmap block with the * invariant that m_rsum_cache[bbno] <= the minimum i for which |