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gfs2: switch to ->free_inode() 

... and use GFS2_I() to get the containing gfs2_inode by inode;
yes, we can feed the address of the first member of structure
to kmem_cache_free(), but let's do it in an obviously safe way.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2019-04-15 19:45:26 -04:00
parent 9f179271e7
commit 784494e1d7
1 changed files with 3 additions and 9 deletions
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12
fs/gfs2/super.c
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@ -1736,20 +1736,14 @@ static struct inode *gfs2_alloc_inode(struct super_block *sb)
return &ip->i_inode;
}
static void gfs2_i_callback(struct rcu_head *head)
static void gfs2_free_inode(struct inode *inode)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
kmem_cache_free(gfs2_inode_cachep, inode);
}
static void gfs2_destroy_inode(struct inode *inode)
{
call_rcu(&inode->i_rcu, gfs2_i_callback);
kmem_cache_free(gfs2_inode_cachep, GFS2_I(inode));
}
const struct super_operations gfs2_super_ops = {
.alloc_inode = gfs2_alloc_inode,
.destroy_inode = gfs2_destroy_inode,
.free_inode = gfs2_free_inode,
.write_inode = gfs2_write_inode,
.dirty_inode = gfs2_dirty_inode,
.evict_inode = gfs2_evict_inode,