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SubjectRe: [RFC PATCH 54/62] ext4: make use of ->free_inode()
On Tue 16-04-19 18:53:32, Al Viro wrote:
> From: Al Viro <viro@zeniv.linux.org.uk>
>
> the rest of this ->destroy_inode() instance could probably be folded
> into ext4_evict_inode()
>
> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Looks good to me. You can add:

Reviewed-by: Jan Kara <jack@suse.cz>

You're right about the possibility of moving the check to
ext4_evict_inode() (probably ext4_clear_inode() would be the best). But we
can leave that for later.

Honza

> ---
> fs/ext4/super.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/fs/ext4/super.c b/fs/ext4/super.c
> index 6ed4eb81e674..981f702848e7 100644
> --- a/fs/ext4/super.c
> +++ b/fs/ext4/super.c
> @@ -1107,9 +1107,8 @@ static int ext4_drop_inode(struct inode *inode)
> return drop;
> }
>
> -static void ext4_i_callback(struct rcu_head *head)
> +static void ext4_free_in_core_inode(struct inode *inode)
> {
> - struct inode *inode = container_of(head, struct inode, i_rcu);
> kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
> }
>
> @@ -1124,7 +1123,6 @@ static void ext4_destroy_inode(struct inode *inode)
> true);
> dump_stack();
> }
> - call_rcu(&inode->i_rcu, ext4_i_callback);
> }
>
> static void init_once(void *foo)
> @@ -1402,6 +1400,7 @@ static const struct quotactl_ops ext4_qctl_operations = {
>
> static const struct super_operations ext4_sops = {
> .alloc_inode = ext4_alloc_inode,
> + .free_inode = ext4_free_in_core_inode,
> .destroy_inode = ext4_destroy_inode,
> .write_inode = ext4_write_inode,
> .dirty_inode = ext4_dirty_inode,
> --
> 2.11.0
>
--
Jan Kara <jack@suse.com>
SUSE Labs, CR

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