diff mbox series

[v6,3/9] landlock: Optimize the number of calls to get_access_mask slightly

Message ID 20231124173026.3257122-4-gnoack@google.com (mailing list archive)
State Handled Elsewhere
Headers show
Series Landlock: IOCTL support | expand

Commit Message

Günther Noack Nov. 24, 2023, 5:30 p.m. UTC 
This call is now going through a function pointer,
and it is not as obvious any more that it will be inlined.

Signed-off-by: Günther Noack <gnoack@google.com>
---
 security/landlock/ruleset.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/security/landlock/ruleset.c b/security/landlock/ruleset.c
index 789c81b26a50..e0a5fbf9201a 100644
--- a/security/landlock/ruleset.c
+++ b/security/landlock/ruleset.c
@@ -723,11 +723,12 @@  landlock_init_layer_masks(const struct landlock_ruleset *const domain,
 	/* Saves all handled accesses per layer. */
 	for (layer_level = 0; layer_level < domain->num_layers; layer_level++) {
 		const unsigned long access_req = access_request;
+		const access_mask_t access_mask =
+			get_access_mask(domain, layer_level);
 		unsigned long access_bit;
 
 		for_each_set_bit(access_bit, &access_req, num_access) {
-			if (BIT_ULL(access_bit) &
-			    get_access_mask(domain, layer_level)) {
+			if (BIT_ULL(access_bit) & access_mask) {
 				(*layer_masks)[access_bit] |=
 					BIT_ULL(layer_level);
 				handled_accesses |= BIT_ULL(access_bit);