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authorMark Brown <broonie@kernel.org>2024-11-14 15:36:46 +0000
committerMark Brown <broonie@kernel.org>2024-11-14 15:36:46 +0000
commit9a5a75bf1f485e2d109303a996d147b94c5e79c9 (patch)
treef931f0d17bef0b6ad980aaf3d2d8b874ef2b749c /lib/objpool.c
parentf3f9f0de30a5106078cd610f80eaa6f9386b2186 (diff)
parent3b7e11a0116c30848d44429650ad80f9cc3bd963 (diff)
ASoc: simple-mux: Allow to specify an idle-state
Merge series from "Hendrik v. Raven" <h.v.raven@merzmedtech.de>: This series adds support for the idle-state property from the mux framework to the simple-mux audio variant. It allows to specify the state of the mux when it is not in use.
Diffstat (limited to 'lib/objpool.c')
-rw-r--r--lib/objpool.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/lib/objpool.c b/lib/objpool.c
index 234f9d0bd081..b998b720c732 100644
--- a/lib/objpool.c
+++ b/lib/objpool.c
@@ -74,15 +74,21 @@ objpool_init_percpu_slots(struct objpool_head *pool, int nr_objs,
* warm caches and TLB hits. in default vmalloc is used to
* reduce the pressure of kernel slab system. as we know,
* mimimal size of vmalloc is one page since vmalloc would
- * always align the requested size to page size
+ * always align the requested size to page size.
+ * but if vmalloc fails or it is not available (e.g. GFP_ATOMIC)
+ * allocate percpu slot with kmalloc.
*/
- if (pool->gfp & GFP_ATOMIC)
- slot = kmalloc_node(size, pool->gfp, cpu_to_node(i));
- else
+ slot = NULL;
+
+ if ((pool->gfp & (GFP_ATOMIC | GFP_KERNEL)) != GFP_ATOMIC)
slot = __vmalloc_node(size, sizeof(void *), pool->gfp,
cpu_to_node(i), __builtin_return_address(0));
- if (!slot)
- return -ENOMEM;
+
+ if (!slot) {
+ slot = kmalloc_node(size, pool->gfp, cpu_to_node(i));
+ if (!slot)
+ return -ENOMEM;
+ }
memset(slot, 0, size);
pool->cpu_slots[i] = slot;