diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-11-29 19:26:26 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-08-22 02:07:27 -0400 |
| commit | 05724f40f5c383435fb62a75783f650a05a1345d (patch) | |
| tree | 9a6105e6137d72ec9d9b24bbc6ecf061e561eca0 | |
| parent | 00e0201f4e91b3661d7241482eb7a1c6bd497882 (diff) | |
percpu: per_cpu_sum()
Add a little helper to replace open coded versions.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.krenel.org
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | fs/bcachefs/util.h | 10 | ||||
| -rw-r--r-- | fs/dcache.c | 16 | ||||
| -rw-r--r-- | include/linux/percpu.h | 10 |
3 files changed, 13 insertions, 23 deletions
diff --git a/fs/bcachefs/util.h b/fs/bcachefs/util.h index fb02c1c36004..e90c2f546007 100644 --- a/fs/bcachefs/util.h +++ b/fs/bcachefs/util.h @@ -584,16 +584,6 @@ do { \ } \ } while (0) -#define per_cpu_sum(_p) \ -({ \ - typeof(*_p) _ret = 0; \ - \ - int cpu; \ - for_each_possible_cpu(cpu) \ - _ret += *per_cpu_ptr(_p, cpu); \ - _ret; \ -}) - static inline u64 percpu_u64_get(u64 __percpu *src) { return per_cpu_sum(src); diff --git a/fs/dcache.c b/fs/dcache.c index 3d8daaecb6d1..64108cbd52f6 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -151,29 +151,19 @@ static struct dentry_stat_t dentry_stat = { */ static long get_nr_dentry(void) { - int i; - long sum = 0; - for_each_possible_cpu(i) - sum += per_cpu(nr_dentry, i); + long sum = per_cpu_sum(&nr_dentry); return sum < 0 ? 0 : sum; } static long get_nr_dentry_unused(void) { - int i; - long sum = 0; - for_each_possible_cpu(i) - sum += per_cpu(nr_dentry_unused, i); + long sum = per_cpu_sum(&nr_dentry_unused); return sum < 0 ? 0 : sum; } static long get_nr_dentry_negative(void) { - int i; - long sum = 0; - - for_each_possible_cpu(i) - sum += per_cpu(nr_dentry_negative, i); + long sum = per_cpu_sum(&nr_dentry_negative); return sum < 0 ? 0 : sum; } diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 4b2047b78b67..0df28ff54f66 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -162,4 +162,14 @@ extern phys_addr_t per_cpu_ptr_to_phys(void *addr); extern unsigned long pcpu_nr_pages(void); +#define per_cpu_sum(_p) \ +({ \ + typeof(*(_p)) sum = 0; \ + int cpu; \ + \ + for_each_possible_cpu(cpu) \ + sum += *per_cpu_ptr(_p, cpu); \ + sum; \ +}) + #endif /* __LINUX_PERCPU_H */ |