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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-05-16 11:42:32 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-05-18 13:57:30 -0700 |
| commit | 513c5f3735a9bd0bd8b58b6cdafbad5ef19f2159 (patch) | |
| tree | cff1349dc68fd1119baad78b2f667f2719d8a166 /fs/f2fs/super.c | |
| parent | 41382ec43255b502321c3c27f1347efeb3279290 (diff) | |
| download | talos-obmc-linux-513c5f3735a9bd0bd8b58b6cdafbad5ef19f2159.tar.gz talos-obmc-linux-513c5f3735a9bd0bd8b58b6cdafbad5ef19f2159.zip | |
f2fs: use percpu_counter for total_valid_inode_count
This patch uses percpu_counter to avoid stat_lock.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 43e3e9c382d8..173cf3a1c29d 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -618,6 +618,7 @@ static void destroy_percpu_info(struct f2fs_sb_info *sbi) for (i = 0; i < NR_COUNT_TYPE; i++) percpu_counter_destroy(&sbi->nr_pages[i]); percpu_counter_destroy(&sbi->alloc_valid_block_count); + percpu_counter_destroy(&sbi->total_valid_inode_count); } static void f2fs_put_super(struct super_block *sb) @@ -1384,7 +1385,11 @@ static int init_percpu_info(struct f2fs_sb_info *sbi) return err; } - return percpu_counter_init(&sbi->alloc_valid_block_count, 0, + err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); + if (err) + return err; + + return percpu_counter_init(&sbi->total_valid_inode_count, 0, GFP_KERNEL); } @@ -1598,8 +1603,8 @@ try_onemore: sbi->total_valid_node_count = le32_to_cpu(sbi->ckpt->valid_node_count); - sbi->total_valid_inode_count = - le32_to_cpu(sbi->ckpt->valid_inode_count); + percpu_counter_set(&sbi->total_valid_inode_count, + le32_to_cpu(sbi->ckpt->valid_inode_count)); sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); sbi->total_valid_block_count = le64_to_cpu(sbi->ckpt->valid_block_count); |
