diff options
| -rw-r--r-- | fs/ext3/super.c | 4 | ||||
| -rw-r--r-- | fs/ext4/super.c | 4 | ||||
| -rw-r--r-- | fs/file_table.c | 2 | ||||
| -rw-r--r-- | include/linux/percpu_counter.h | 4 | ||||
| -rw-r--r-- | lib/percpu_counter.c | 4 |
5 files changed, 9 insertions, 9 deletions
diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 9537316..c5a52c9 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -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) ^ diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 3c1397f..1814d4b8 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -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) ^ diff --git a/fs/file_table.c b/fs/file_table.c index d17fd69..287fdce 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -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; } diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h index 2da92e8..dd89eb9 100644 --- a/include/linux/percpu_counter.h +++ b/include/linux/percpu_counter.h @@ -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); } diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c index c9708db..b0d80ea 100644 --- a/lib/percpu_counter.c +++ b/lib/percpu_counter.c @@ -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) { |
