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lib: percpu_counter_sum_positive

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s/percpu_counter_sum/&_positive/

Because its consitent with percpu_counter_read*

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Peter Zijlstra 2007-10-16 23:25:44 -07:00 committed by Linus Torvalds
parent 3a587f47b8
commit 52d9f3b409
5 changed files with 9 additions and 9 deletions
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4
fs/ext3/super.c
View file

@ -2472,13 +2472,13 @@ static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf)
buf->f_type = EXT3_SUPER_MAGIC;
buf->f_bsize = sb->s_blocksize;
buf->f_blocks = le32_to_cpu(es->s_blocks_count) - sbi->s_overhead_last;
buf->f_bfree = percpu_counter_sum(&sbi->s_freeblocks_counter);
buf->f_bfree = percpu_counter_sum_positive(&sbi->s_freeblocks_counter);
es->s_free_blocks_count = cpu_to_le32(buf->f_bfree);
buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count);
if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count))
buf->f_bavail = 0;
buf->f_files = le32_to_cpu(es->s_inodes_count);
buf->f_ffree = percpu_counter_sum(&sbi->s_freeinodes_counter);
buf->f_ffree = percpu_counter_sum_positive(&sbi->s_freeinodes_counter);
es->s_free_inodes_count = cpu_to_le32(buf->f_ffree);
buf->f_namelen = EXT3_NAME_LEN;
fsid = le64_to_cpup((void *)es->s_uuid) ^

4
fs/ext4/super.c
View file

@ -2592,13 +2592,13 @@ static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf)
buf->f_type = EXT4_SUPER_MAGIC;
buf->f_bsize = sb->s_blocksize;
buf->f_blocks = ext4_blocks_count(es) - sbi->s_overhead_last;
buf->f_bfree = percpu_counter_sum(&sbi->s_freeblocks_counter);
buf->f_bfree = percpu_counter_sum_positive(&sbi->s_freeblocks_counter);
es->s_free_blocks_count = cpu_to_le32(buf->f_bfree);
buf->f_bavail = buf->f_bfree - ext4_r_blocks_count(es);
if (buf->f_bfree < ext4_r_blocks_count(es))
buf->f_bavail = 0;
buf->f_files = le32_to_cpu(es->s_inodes_count);
buf->f_ffree = percpu_counter_sum(&sbi->s_freeinodes_counter);
buf->f_ffree = percpu_counter_sum_positive(&sbi->s_freeinodes_counter);
es->s_free_inodes_count = cpu_to_le32(buf->f_ffree);
buf->f_namelen = EXT4_NAME_LEN;
fsid = le64_to_cpup((void *)es->s_uuid) ^

2
fs/file_table.c
View file

@ -98,7 +98,7 @@ struct file *get_empty_filp(void)
* percpu_counters are inaccurate. Do an expensive check before
* we go and fail.
*/
if (percpu_counter_sum(&nr_files) >= files_stat.max_files)
if (percpu_counter_sum_positive(&nr_files) >= files_stat.max_files)
goto over;
}

4
include/linux/percpu_counter.h
View file

@ -34,7 +34,7 @@ void percpu_counter_init(struct percpu_counter *fbc, s64 amount);
void percpu_counter_destroy(struct percpu_counter *fbc);
void percpu_counter_set(struct percpu_counter *fbc, s64 amount);
void __percpu_counter_add(struct percpu_counter *fbc, s64 amount, s32 batch);
s64 percpu_counter_sum(struct percpu_counter *fbc);
s64 percpu_counter_sum_positive(struct percpu_counter *fbc);
static inline void percpu_counter_add(struct percpu_counter *fbc, s64 amount)
{
@ -102,7 +102,7 @@ static inline s64 percpu_counter_read_positive(struct percpu_counter *fbc)
return fbc->count;
}
static inline s64 percpu_counter_sum(struct percpu_counter *fbc)
static inline s64 percpu_counter_sum_positive(struct percpu_counter *fbc)
{
return percpu_counter_read_positive(fbc);
}

4
lib/percpu_counter.c
View file

@ -52,7 +52,7 @@ EXPORT_SYMBOL(__percpu_counter_add);
* Add up all the per-cpu counts, return the result. This is a more accurate
* but much slower version of percpu_counter_read_positive()
*/
s64 percpu_counter_sum(struct percpu_counter *fbc)
s64 percpu_counter_sum_positive(struct percpu_counter *fbc)
{
s64 ret;
int cpu;
@ -66,7 +66,7 @@ s64 percpu_counter_sum(struct percpu_counter *fbc)
spin_unlock(&fbc->lock);
return ret < 0 ? 0 : ret;
}
EXPORT_SYMBOL(percpu_counter_sum);
EXPORT_SYMBOL(percpu_counter_sum_positive);
void percpu_counter_init(struct percpu_counter *fbc, s64 amount)
{