[RFC PATCH 56/62] jfs: switch to ->free_inode()

Al Viro
2019-04-16T17:55:01Z

synchronous part can be moved to ->evict_inode(), the rest -
->free_inode() fodder

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/jfs/inode.c | 13 +++++++++++++
fs/jfs/super.c | 24 +++---------------------
2 files changed, 16 insertions(+), 21 deletions(-)

diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 805ae9e8944a..f2b92b292abe 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -31,6 +31,7 @@
#include "jfs_extent.h"
#include "jfs_unicode.h"
#include "jfs_debug.h"
+#include "jfs_dmap.h"

struct inode *jfs_iget(struct super_block *sb, unsigned long ino)
@@ -150,6 +151,8 @@ int jfs_write_inode(struct inode *inode, struct writeback_control *wbc)

void jfs_evict_inode(struct inode *inode)
{
+ struct jfs_inode_info *ji = JFS_IP(inode);
+
jfs_info("In jfs_evict_inode, inode = 0x%p", inode);

if (!inode->i_nlink && !is_bad_inode(inode)) {
@@ -173,6 +176,16 @@ void jfs_evict_inode(struct inode *inode)
}
clear_inode(inode);
dquot_drop(inode);
+
+ BUG_ON(!list_empty(&ji->anon_inode_list));
+
+ spin_lock_irq(&ji->ag_lock);
+ if (ji->active_ag != -1) {
+ struct bmap *bmap = JFS_SBI(inode->i_sb)->bmap;
+ atomic_dec(&bmap->db_active[ji->active_ag]);
+ ji->active_ag = -1;
+ }
+ spin_unlock_irq(&ji->ag_lock);
}

void jfs_dirty_inode(struct inode *inode, int flags)
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 65d8fc87ab11..9454831bbd71 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -124,27 +124,9 @@ static struct inode *jfs_alloc_inode(struct super_block *sb)
return &jfs_inode->vfs_inode;
}

-static void jfs_i_callback(struct rcu_head *head)
+static void jfs_free_inode(struct inode *inode)
{
- struct inode *inode = container_of(head, struct inode, i_rcu);
- struct jfs_inode_info *ji = JFS_IP(inode);
- kmem_cache_free(jfs_inode_cachep, ji);
-}
-
-static void jfs_destroy_inode(struct inode *inode)
-{
- struct jfs_inode_info *ji = JFS_IP(inode);
-
- BUG_ON(!list_empty(&ji->anon_inode_list));
-
- spin_lock_irq(&ji->ag_lock);
- if (ji->active_ag != -1) {
- struct bmap *bmap = JFS_SBI(inode->i_sb)->bmap;
- atomic_dec(&bmap->db_active[ji->active_ag]);
- ji->active_ag = -1;
- }
- spin_unlock_irq(&ji->ag_lock);
- call_rcu(&inode->i_rcu, jfs_i_callback);
+ kmem_cache_free(jfs_inode_cachep, JFS_IP(inode));
}

static int jfs_statfs(struct dentry *dentry, struct kstatfs *buf)
@@ -912,7 +894,7 @@ static int jfs_quota_off(struct super_block *sb, int type)

static const struct super_operations jfs_super_operations = {
.alloc_inode = jfs_alloc_inode,
- .destroy_inode = jfs_destroy_inode,
+ .free_inode = jfs_free_inode,
.dirty_inode = jfs_dirty_inode,
.write_inode = jfs_write_inode,
.evict_inode = jfs_evict_inode,
--
2.11.0