diff options
| author | Gao Xiang <gaoxiang25@huawei.com> | 2017-05-10 23:01:15 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-05-11 17:14:26 +0200 |
| commit | edc300b9d345c2be63761852e7d93fc8dac61abe (patch) | |
| tree | f9b92fb6712de4109b80678ee90bfe832942f3ac | |
| parent | a9855526801602656d86c56245e49364e9c015e8 (diff) | |
ANDROID: sdcardfs: fix sdcardfs_destroy_inode for the inode RCU approach
According to the following commits,
fs: icache RCU free inodes
vfs: fix the stupidity with i_dentry in inode destructors
sdcardfs_destroy_inode should be fixed for the fast path safety.
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Change-Id: I84f43c599209d23737c7e28b499dd121cb43636d
| -rwxr-xr-x | fs/sdcardfs/super.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/sdcardfs/super.c b/fs/sdcardfs/super.c index a3393e959..8a9c9c7ad 100755 --- a/fs/sdcardfs/super.c +++ b/fs/sdcardfs/super.c @@ -192,11 +192,18 @@ static struct inode *sdcardfs_alloc_inode(struct super_block *sb) return &i->vfs_inode; } -static void sdcardfs_destroy_inode(struct inode *inode) +static void i_callback(struct rcu_head *head) { + struct inode *inode = container_of(head, struct inode, i_rcu); + kmem_cache_free(sdcardfs_inode_cachep, SDCARDFS_I(inode)); } +static void sdcardfs_destroy_inode(struct inode *inode) +{ + call_rcu(&inode->i_rcu, i_callback); +} + /* sdcardfs inode cache constructor */ static void init_once(void *obj) { |