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vfs: use newly added zpcpu routines instead of direct access where appropriate

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This commit is contained in:
Mateusz Guzik 2020-02-07 22:45:09 +00:00
parent ea77ce6ef9
commit 8f2b73dc86
1 changed files with 5 additions and 5 deletions
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10
sys/sys/mount.h
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@ -1001,14 +1001,14 @@ int vfs_mount_fetch_counter(struct mount *, enum mount_counter);
*/
#define vfs_op_thread_entered(mp) ({ \
MPASS(curthread->td_critnest > 0); \
*(int *)zpcpu_get(mp->mnt_thread_in_ops_pcpu) == 1; \
*zpcpu_get(mp->mnt_thread_in_ops_pcpu) == 1; \
})
#define vfs_op_thread_enter(mp) ({ \
bool _retval = true; \
critical_enter(); \
MPASS(!vfs_op_thread_entered(mp)); \
*(int *)zpcpu_get(mp->mnt_thread_in_ops_pcpu) = 1; \
zpcpu_set_protected(mp->mnt_thread_in_ops_pcpu, 1); \
atomic_thread_fence_seq_cst(); \
if (__predict_false(mp->mnt_vfs_ops > 0)) { \
vfs_op_thread_exit(mp); \
@ -1020,18 +1020,18 @@ int vfs_mount_fetch_counter(struct mount *, enum mount_counter);
#define vfs_op_thread_exit(mp) do { \
MPASS(vfs_op_thread_entered(mp)); \
atomic_thread_fence_rel(); \
*(int *)zpcpu_get(mp->mnt_thread_in_ops_pcpu) = 0; \
zpcpu_set_protected(mp->mnt_thread_in_ops_pcpu, 0); \
critical_exit(); \
} while (0)
#define vfs_mp_count_add_pcpu(mp, count, val) do { \
MPASS(vfs_op_thread_entered(mp)); \
(*(int *)zpcpu_get(mp->mnt_##count##_pcpu)) += val; \
zpcpu_add_protected(mp->mnt_##count##_pcpu, val); \
} while (0)
#define vfs_mp_count_sub_pcpu(mp, count, val) do { \
MPASS(vfs_op_thread_entered(mp)); \
(*(int *)zpcpu_get(mp->mnt_##count##_pcpu)) -= val; \
zpcpu_sub_protected(mp->mnt_##count##_pcpu, val); \
} while (0)
#else /* !_KERNEL */