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vfs: group fields used for per-cpu ops in one cacheline

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Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Mateusz Guzik 2019-09-19 21:23:14 +00:00
parent 12294db4ac
commit b488246b45
2 changed files with 2 additions and 2 deletions
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2
sys/kern/vfs_mount.c
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@ -157,7 +157,7 @@ vfs_mount_init(void *dummy __unused)
{
mount_zone = uma_zcreate("Mountpoints", sizeof(struct mount), NULL,
NULL, mount_init, mount_fini, UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
NULL, mount_init, mount_fini, UMA_ALIGN_CACHE, UMA_ZONE_NOFREE);
}
SYSINIT(vfs_mount, SI_SUB_VFS, SI_ORDER_ANY, vfs_mount_init, NULL);

2
sys/sys/mount.h
View file

@ -226,7 +226,7 @@ struct mount {
struct lock mnt_explock; /* vfs_export walkers lock */
TAILQ_ENTRY(mount) mnt_upper_link; /* (m) we in the all uppers */
TAILQ_HEAD(, mount) mnt_uppers; /* (m) upper mounts over us*/
int mnt_vfs_ops; /* (i) pending vfs ops */
int __aligned(CACHE_LINE_SIZE) mnt_vfs_ops;/* (i) pending vfs ops */
int *mnt_thread_in_ops_pcpu;
int *mnt_ref_pcpu;
int *mnt_lockref_pcpu;