vfs: replace vfs_smr_quiesce with vfs_smr_synchronize
This ends up using a smr specific method. Suggested by: markj Tested by: pho
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4d9488674f
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@ -2683,7 +2683,7 @@ cache_vnode_init(struct vnode *vp)
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*
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* This will force a fs lookup.
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*
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* Synchronisation is done in 2 steps, calling vfs_smr_quiesce each time
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* Synchronisation is done in 2 steps, calling vfs_smr_synchronize each time
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* to observe all CPUs not performing the lookup.
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*/
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static void
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@ -2699,14 +2699,14 @@ cache_changesize_set_temp(struct nchashhead *temptbl, u_long temphash)
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*/
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atomic_store_long(&nchash, temphash);
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atomic_thread_fence_rel();
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vfs_smr_quiesce();
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vfs_smr_synchronize();
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/*
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* At this point everyone sees the updated hash value, but they still
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* see the old table.
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*/
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atomic_store_ptr(&nchashtbl, temptbl);
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atomic_thread_fence_rel();
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vfs_smr_quiesce();
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vfs_smr_synchronize();
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/*
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* At this point everyone sees the updated table pointer and size pair.
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*/
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@ -2729,14 +2729,14 @@ cache_changesize_set_new(struct nchashhead *new_tbl, u_long new_hash)
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*/
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atomic_store_ptr(&nchashtbl, new_tbl);
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atomic_thread_fence_rel();
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vfs_smr_quiesce();
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vfs_smr_synchronize();
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/*
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* At this point everyone sees the updated pointer value, but they
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* still see the old size.
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*/
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atomic_store_long(&nchash, new_hash);
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atomic_thread_fence_rel();
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vfs_smr_quiesce();
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vfs_smr_synchronize();
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/*
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* At this point everyone sees the updated table pointer and size pair.
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*/
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@ -3881,7 +3881,7 @@ cache_fplookup_lockout(void)
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if (on) {
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atomic_store_char(&cache_fast_lookup_enabled, false);
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atomic_thread_fence_rel();
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vfs_smr_quiesce();
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vfs_smr_synchronize();
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}
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}
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@ -1112,7 +1112,7 @@ int vn_dir_check_exec(struct vnode *vp, struct componentname *cnp);
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#define VFS_SMR() vfs_smr
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#define vfs_smr_enter() smr_enter(VFS_SMR())
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#define vfs_smr_exit() smr_exit(VFS_SMR())
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#define vfs_smr_quiesce() quiesce_all_critical()
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#define vfs_smr_synchronize() smr_synchronize(VFS_SMR())
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#define vfs_smr_entered_load(ptr) smr_entered_load((ptr), VFS_SMR())
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#define VFS_SMR_ASSERT_ENTERED() SMR_ASSERT_ENTERED(VFS_SMR())
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#define VFS_SMR_ASSERT_NOT_ENTERED() SMR_ASSERT_NOT_ENTERED(VFS_SMR())
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