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f2fs: use percpu_counter for # of dirty pages in inode

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This patch adds percpu_counter for # of dirty pages in inode.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2016-05-13 12:47:11 -07:00
parent 523be8a6b3
commit 1beba1b3a9
3 changed files with 12 additions and 7 deletions
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7
fs/f2fs/super.c
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@@ -526,9 +526,13 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb)
init_once((void *) fi);
if (percpu_counter_init(&fi->dirty_pages, 0, GFP_NOFS)) {
kmem_cache_free(f2fs_inode_cachep, fi);
return NULL;
}
/* Initialize f2fs-specific inode info */
fi->vfs_inode.i_version = 1;
atomic_set(&fi->dirty_pages, 0);
fi->i_current_depth = 1;
fi->i_advise = 0;
init_rwsem(&fi->i_sem);
@@ -603,6 +607,7 @@ static void f2fs_i_callback(struct rcu_head *head)
static void f2fs_destroy_inode(struct inode *inode)
{
percpu_counter_destroy(&F2FS_I(inode)->dirty_pages);
call_rcu(&inode->i_rcu, f2fs_i_callback);
}