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| author | Ingo Molnar <mingo@kernel.org> | 2018-01-03 14:14:18 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-01-03 14:14:18 +0100 |
| commit | 475c5ee193fd682c6383b5e418e65e46a477d176 (patch) | |
| tree | 43f70a77d919e10237edbbbc3ca7ac8076d27410 /security | |
| parent | 30a7acd573899fd8b8ac39236eff6468b195ac7d (diff) | |
| parent | 1dfa55e01987288d847220b8c027204871440ed1 (diff) | |
| download | linux-475c5ee193fd682c6383b5e418e65e46a477d176.tar.bz2 | |
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney:
- Updates to use cond_resched() instead of cond_resched_rcu_qs()
where feasible (currently everywhere except in kernel/rcu and
in kernel/torture.c). Also a couple of fixes to avoid sending
IPIs to offline CPUs.
- Updates to simplify RCU's dyntick-idle handling.
- Updates to remove almost all uses of smp_read_barrier_depends()
and read_barrier_depends().
- Miscellaneous fixes.
- Torture-test updates.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'security')
| -rw-r--r-- | security/keys/keyring.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/security/keys/keyring.c b/security/keys/keyring.c index d0bccebbd3b5..41bcf57e96f2 100644 --- a/security/keys/keyring.c +++ b/security/keys/keyring.c @@ -713,7 +713,6 @@ descend_to_keyring: * doesn't contain any keyring pointers. */ shortcut = assoc_array_ptr_to_shortcut(ptr); - smp_read_barrier_depends(); if ((shortcut->index_key[0] & ASSOC_ARRAY_FAN_MASK) != 0) goto not_this_keyring; @@ -723,8 +722,6 @@ descend_to_keyring: } node = assoc_array_ptr_to_node(ptr); - smp_read_barrier_depends(); - ptr = node->slots[0]; if (!assoc_array_ptr_is_meta(ptr)) goto begin_node; @@ -736,7 +733,6 @@ descend_to_node: kdebug("descend"); if (assoc_array_ptr_is_shortcut(ptr)) { shortcut = assoc_array_ptr_to_shortcut(ptr); - smp_read_barrier_depends(); ptr = READ_ONCE(shortcut->next_node); BUG_ON(!assoc_array_ptr_is_node(ptr)); } @@ -744,7 +740,6 @@ descend_to_node: begin_node: kdebug("begin_node"); - smp_read_barrier_depends(); slot = 0; ascend_to_node: /* Go through the slots in a node */ @@ -792,14 +787,12 @@ ascend_to_node: if (ptr && assoc_array_ptr_is_shortcut(ptr)) { shortcut = assoc_array_ptr_to_shortcut(ptr); - smp_read_barrier_depends(); ptr = READ_ONCE(shortcut->back_pointer); slot = shortcut->parent_slot; } if (!ptr) goto not_this_keyring; node = assoc_array_ptr_to_node(ptr); - smp_read_barrier_depends(); slot++; /* If we've ascended to the root (zero backpointer), we must have just |