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dax: make use of ->free_inode()

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we might want to drop ->destroy_inode() there - it's used only for
WARN_ON() now, and AFAICS that could be moved to ->evict_inode()
if we had one...

Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2019-04-10 14:57:19 -04:00
parent a2b757fe0f
commit 53e2282999
1 changed files with 2 additions and 5 deletions
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7
drivers/dax/super.c
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@ -412,11 +412,9 @@ static struct dax_device *to_dax_dev(struct inode *inode)
return container_of(inode, struct dax_device, inode); return container_of(inode, struct dax_device, inode);
} }
static void dax_i_callback(struct rcu_head *head) static void dax_free_inode(struct inode *inode)
{ {
struct inode *inode = container_of(head, struct inode, i_rcu);
struct dax_device *dax_dev = to_dax_dev(inode); struct dax_device *dax_dev = to_dax_dev(inode);
kfree(dax_dev->host); kfree(dax_dev->host);
dax_dev->host = NULL; dax_dev->host = NULL;
if (inode->i_rdev) if (inode->i_rdev)
@ -427,16 +425,15 @@ static void dax_i_callback(struct rcu_head *head)
static void dax_destroy_inode(struct inode *inode) static void dax_destroy_inode(struct inode *inode)
{ {
struct dax_device *dax_dev = to_dax_dev(inode); struct dax_device *dax_dev = to_dax_dev(inode);
WARN_ONCE(test_bit(DAXDEV_ALIVE, &dax_dev->flags), WARN_ONCE(test_bit(DAXDEV_ALIVE, &dax_dev->flags),
"kill_dax() must be called before final iput()\n"); "kill_dax() must be called before final iput()\n");
call_rcu(&inode->i_rcu, dax_i_callback);
} }
static const struct super_operations dax_sops = { static const struct super_operations dax_sops = {
.statfs = simple_statfs, .statfs = simple_statfs,
.alloc_inode = dax_alloc_inode, .alloc_inode = dax_alloc_inode,
.destroy_inode = dax_destroy_inode, .destroy_inode = dax_destroy_inode,
.free_inode = dax_free_inode,
.drop_inode = generic_delete_inode, .drop_inode = generic_delete_inode,
}; };