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authorTejun Heo <tj@kernel.org>2014-09-08 09:51:29 +0900
committerTejun Heo <tj@kernel.org>2014-09-08 09:51:29 +0900
commit908c7f1949cb7cc6e92ba8f18f2998e87e265b8e (patch)
treeaf885c65c6fe794cab7b7ad37bd811531a2a2ac5 /include/linux/percpu_counter.h
parentebd8fef304f99da84d4a52ad056f6137ac9652d4 (diff)
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percpu_counter: add @gfp to percpu_counter_init()
Percpu allocator now supports allocation mask. Add @gfp to percpu_counter_init() so that !GFP_KERNEL allocation masks can be used with percpu_counters too. We could have left percpu_counter_init() alone and added percpu_counter_init_gfp(); however, the number of users isn't that high and introducing _gfp variants to all percpu data structures would be quite ugly, so let's just do the conversion. This is the one with the most users. Other percpu data structures are a lot easier to convert. This patch doesn't make any functional difference. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Jan Kara <jack@suse.cz> Acked-by: "David S. Miller" <davem@davemloft.net> Cc: x86@kernel.org Cc: Jens Axboe <axboe@kernel.dk> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/percpu_counter.h')
-rw-r--r--include/linux/percpu_counter.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index d5dd465..50e5009 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -12,6 +12,7 @@
#include <linux/threads.h>
#include <linux/percpu.h>
#include <linux/types.h>
+#include <linux/gfp.h>
#ifdef CONFIG_SMP
@@ -26,14 +27,14 @@ struct percpu_counter {
extern int percpu_counter_batch;
-int __percpu_counter_init(struct percpu_counter *fbc, s64 amount,
+int __percpu_counter_init(struct percpu_counter *fbc, s64 amount, gfp_t gfp,
struct lock_class_key *key);
-#define percpu_counter_init(fbc, value) \
+#define percpu_counter_init(fbc, value, gfp) \
({ \
static struct lock_class_key __key; \
\
- __percpu_counter_init(fbc, value, &__key); \
+ __percpu_counter_init(fbc, value, gfp, &__key); \
})
void percpu_counter_destroy(struct percpu_counter *fbc);
@@ -89,7 +90,8 @@ struct percpu_counter {
s64 count;
};
-static inline int percpu_counter_init(struct percpu_counter *fbc, s64 amount)
+static inline int percpu_counter_init(struct percpu_counter *fbc, s64 amount,
+ gfp_t gfp)
{
fbc->count = amount;
return 0;
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