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authorNick Piggin <npiggin@kernel.dk>2011-01-07 17:49:49 +1100
committerNick Piggin <npiggin@kernel.dk>2011-01-07 17:50:26 +1100
commitfa0d7e3de6d6fc5004ad9dea0dd6b286af8f03e9 (patch)
tree203e0f73883e4c26b5597e36042386a1237dab35 /fs
parent77812a1ef139d84270d27faacc0630c887411013 (diff)
fs: icache RCU free inodes
RCU free the struct inode. This will allow: - Subsequent store-free path walking patch. The inode must be consulted for permissions when walking, so an RCU inode reference is a must. - sb_inode_list_lock to be moved inside i_lock because sb list walkers who want to take i_lock no longer need to take sb_inode_list_lock to walk the list in the first place. This will simplify and optimize locking. - Could remove some nested trylock loops in dcache code - Could potentially simplify things a bit in VM land. Do not need to take the page lock to follow page->mapping. The downsides of this is the performance cost of using RCU. In a simple creat/unlink microbenchmark, performance drops by about 10% due to inability to reuse cache-hot slab objects. As iterations increase and RCU freeing starts kicking over, this increases to about 20%. In cases where inode lifetimes are longer (ie. many inodes may be allocated during the average life span of a single inode), a lot of this cache reuse is not applicable, so the regression caused by this patch is smaller. The cache-hot regression could largely be avoided by using SLAB_DESTROY_BY_RCU, however this adds some complexity to list walking and store-free path walking, so I prefer to implement this at a later date, if it is shown to be a win in real situations. I haven't found a regression in any non-micro benchmark so I doubt it will be a problem. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs')
-rw-r--r--fs/9p/vfs_inode.c9
-rw-r--r--fs/adfs/super.c9
-rw-r--r--fs/affs/super.c9
-rw-r--r--fs/afs/super.c10
-rw-r--r--fs/befs/linuxvfs.c10
-rw-r--r--fs/bfs/inode.c9
-rw-r--r--fs/block_dev.c9
-rw-r--r--fs/btrfs/inode.c9
-rw-r--r--fs/ceph/inode.c11
-rw-r--r--fs/cifs/cifsfs.c9
-rw-r--r--fs/coda/inode.c9
-rw-r--r--fs/ecryptfs/super.c12
-rw-r--r--fs/efs/super.c9
-rw-r--r--fs/exofs/super.c9
-rw-r--r--fs/ext2/super.c9
-rw-r--r--fs/ext3/super.c9
-rw-r--r--fs/ext4/super.c9
-rw-r--r--fs/fat/inode.c9
-rw-r--r--fs/freevxfs/vxfs_inode.c9
-rw-r--r--fs/fuse/inode.c9
-rw-r--r--fs/gfs2/super.c9
-rw-r--r--fs/hfs/super.c9
-rw-r--r--fs/hfsplus/super.c10
-rw-r--r--fs/hostfs/hostfs_kern.c9
-rw-r--r--fs/hpfs/super.c9
-rw-r--r--fs/hppfs/hppfs.c9
-rw-r--r--fs/hugetlbfs/inode.c9
-rw-r--r--fs/inode.c10
-rw-r--r--fs/isofs/inode.c9
-rw-r--r--fs/jffs2/super.c9
-rw-r--r--fs/jfs/super.c10
-rw-r--r--fs/logfs/inode.c9
-rw-r--r--fs/minix/inode.c9
-rw-r--r--fs/ncpfs/inode.c9
-rw-r--r--fs/nfs/inode.c9
-rw-r--r--fs/nilfs2/super.c10
-rw-r--r--fs/ntfs/inode.c9
-rw-r--r--fs/ocfs2/dlmfs/dlmfs.c9
-rw-r--r--fs/ocfs2/super.c9
-rw-r--r--fs/openpromfs/inode.c9
-rw-r--r--fs/proc/inode.c9
-rw-r--r--fs/qnx4/inode.c9
-rw-r--r--fs/reiserfs/super.c9
-rw-r--r--fs/romfs/super.c9
-rw-r--r--fs/squashfs/super.c9
-rw-r--r--fs/sysv/inode.c9
-rw-r--r--fs/ubifs/super.c10
-rw-r--r--fs/udf/super.c9
-rw-r--r--fs/ufs/super.c9
-rw-r--r--fs/xfs/xfs_iget.c13
50 files changed, 415 insertions, 51 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 1073bca8488..f6f9081e6d2 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -237,10 +237,17 @@ struct inode *v9fs_alloc_inode(struct super_block *sb)
*
*/
-void v9fs_destroy_inode(struct inode *inode)
+static void v9fs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(vcookie_cache, v9fs_inode2cookie(inode));
}
+
+void v9fs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, v9fs_i_callback);
+}
#endif
/**
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index 959dbff2d42..47dffc513a2 100644
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -240,11 +240,18 @@ static struct inode *adfs_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void adfs_destroy_inode(struct inode *inode)
+static void adfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(adfs_inode_cachep, ADFS_I(inode));
}
+static void adfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, adfs_i_callback);
+}
+
static void init_once(void *foo)
{
struct adfs_inode_info *ei = (struct adfs_inode_info *) foo;
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 0cf7f4384cb..4c18fcfb0a1 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -95,11 +95,18 @@ static struct inode *affs_alloc_inode(struct super_block *sb)
return &i->vfs_inode;
}
-static void affs_destroy_inode(struct inode *inode)
+static void affs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(affs_inode_cachep, AFFS_I(inode));
}
+static void affs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, affs_i_callback);
+}
+
static void init_once(void *foo)
{
struct affs_inode_info *ei = (struct affs_inode_info *) foo;
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 27201cffece..f901a9d7c11 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -498,6 +498,14 @@ static struct inode *afs_alloc_inode(struct super_block *sb)
return &vnode->vfs_inode;
}
+static void afs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ struct afs_vnode *vnode = AFS_FS_I(inode);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(afs_inode_cachep, vnode);
+}
+
/*
* destroy an AFS inode struct
*/
@@ -511,7 +519,7 @@ static void afs_destroy_inode(struct inode *inode)
ASSERTCMP(vnode->server, ==, NULL);
- kmem_cache_free(afs_inode_cachep, vnode);
+ call_rcu(&inode->i_rcu, afs_i_callback);
atomic_dec(&afs_count_active_inodes);
}
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index aa4e7c7ae3c..de93581b79a 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -284,12 +284,18 @@ befs_alloc_inode(struct super_block *sb)
return &bi->vfs_inode;
}
-static void
-befs_destroy_inode(struct inode *inode)
+static void befs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(befs_inode_cachep, BEFS_I(inode));
}
+static void befs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, befs_i_callback);
+}
+
static void init_once(void *foo)
{
struct befs_inode_info *bi = (struct befs_inode_info *) foo;
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index 76db6d7d49b..a8e37f81d09 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -248,11 +248,18 @@ static struct inode *bfs_alloc_inode(struct super_block *sb)
return &bi->vfs_inode;
}
-static void bfs_destroy_inode(struct inode *inode)
+static void bfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(bfs_inode_cachep, BFS_I(inode));
}
+static void bfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, bfs_i_callback);
+}
+
static void init_once(void *foo)
{
struct bfs_inode_info *bi = foo;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 4230252fd68..771f2352701 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -409,13 +409,20 @@ static struct inode *bdev_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void bdev_destroy_inode(struct inode *inode)
+static void bdev_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
struct bdev_inode *bdi = BDEV_I(inode);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(bdev_cachep, bdi);
}
+static void bdev_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, bdev_i_callback);
+}
+
static void init_once(void *foo)
{
struct bdev_inode *ei = (struct bdev_inode *) foo;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 7ce9f893278..f9d2994a42a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6495,6 +6495,13 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
return inode;
}
+static void btrfs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(btrfs_inode_cachep, BTRFS_I(inode));
+}
+
void btrfs_destroy_inode(struct inode *inode)
{
struct btrfs_ordered_extent *ordered;
@@ -6564,7 +6571,7 @@ void btrfs_destroy_inode(struct inode *inode)
inode_tree_del(inode);
btrfs_drop_extent_cache(inode, 0, (u64)-1, 0);
free:
- kmem_cache_free(btrfs_inode_cachep, BTRFS_I(inode));
+ call_rcu(&inode->i_rcu, btrfs_i_callback);
}
int btrfs_drop_inode(struct inode *inode)
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 2a48cafc174..47f8c8baf3b 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -368,6 +368,15 @@ struct inode *ceph_alloc_inode(struct super_block *sb)
return &ci->vfs_inode;
}
+static void ceph_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ struct ceph_inode_info *ci = ceph_inode(inode);
+
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(ceph_inode_cachep, ci);
+}
+
void ceph_destroy_inode(struct inode *inode)
{
struct ceph_inode_info *ci = ceph_inode(inode);
@@ -407,7 +416,7 @@ void ceph_destroy_inode(struct inode *inode)
if (ci->i_xattrs.prealloc_blob)
ceph_buffer_put(ci->i_xattrs.prealloc_blob);
- kmem_cache_free(ceph_inode_cachep, ci);
+ call_rcu(&inode->i_rcu, ceph_i_callback);
}
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 3936aa7f2c2..223717dcc40 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -334,10 +334,17 @@ cifs_alloc_inode(struct super_block *sb)
return &cifs_inode->vfs_inode;
}
+static void cifs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(cifs_inode_cachep, CIFS_I(inode));
+}
+
static void
cifs_destroy_inode(struct inode *inode)
{
- kmem_cache_free(cifs_inode_cachep, CIFS_I(inode));
+ call_rcu(&inode->i_rcu, cifs_i_callback);
}
static void
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 5ea57c8c7f9..50dc7d189f5 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -56,11 +56,18 @@ static struct inode *coda_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void coda_destroy_inode(struct inode *inode)
+static void coda_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(coda_inode_cachep, ITOC(inode));
}
+static void coda_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, coda_i_callback);
+}
+
static void init_once(void *foo)
{
struct coda_inode_info *ei = (struct coda_inode_info *) foo;
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index 2720178b771..3042fe123a3 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -62,6 +62,16 @@ out:
return inode;
}
+static void ecryptfs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ struct ecryptfs_inode_info *inode_info;
+ inode_info = ecryptfs_inode_to_private(inode);
+
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(ecryptfs_inode_info_cache, inode_info);
+}
+
/**
* ecryptfs_destroy_inode
* @inode: The ecryptfs inode
@@ -88,7 +98,7 @@ static void ecryptfs_destroy_inode(struct inode *inode)
}
}
ecryptfs_destroy_crypt_stat(&inode_info->crypt_stat);
- kmem_cache_free(ecryptfs_inode_info_cache, inode_info);
+ call_rcu(&inode->i_rcu, ecryptfs_i_callback);
}
/**
diff --git a/fs/efs/super.c b/fs/efs/super.c
index 5073a07652c..0f31acb0131 100644
--- a/fs/efs/super.c
+++ b/fs/efs/super.c
@@ -65,11 +65,18 @@ static struct inode *efs_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void efs_destroy_inode(struct inode *inode)
+static void efs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(efs_inode_cachep, INODE_INFO(inode));
}
+static void efs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, efs_i_callback);
+}
+
static void init_once(void *foo)
{
struct efs_inode_info *ei = (struct efs_inode_info *) foo;
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 79c3ae6e045..8c6c4669b38 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -150,12 +150,19 @@ static struct inode *exofs_alloc_inode(struct super_block *sb)
return &oi->vfs_inode;
}
+static void exofs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(exofs_inode_cachep, exofs_i(inode));
+}
+
/*
* Remove an inode from the cache
*/
static void exofs_destroy_inode(struct inode *inode)
{
- kmem_cache_free(exofs_inode_cachep, exofs_i(inode));
+ call_rcu(&inode->i_rcu, exofs_i_callback);
}
/*
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index d89e0b6a2d7..e0c6380ff99 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -161,11 +161,18 @@ static struct inode *ext2_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void ext2_destroy_inode(struct inode *inode)
+static void ext2_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(ext2_inode_cachep, EXT2_I(inode));
}
+static void ext2_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, ext2_i_callback);
+}
+
static void init_once(void *foo)
{
struct ext2_inode_info *ei = (struct ext2_inode_info *) foo;
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index acf8695fa8f..77ce1616f72 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -479,6 +479,13 @@ static struct inode *ext3_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
+static void ext3_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(ext3_inode_cachep, EXT3_I(inode));
+}
+
static void ext3_destroy_inode(struct inode *inode)
{
if (!list_empty(&(EXT3_I(inode)->i_orphan))) {
@@ -489,7 +496,7 @@ static void ext3_destroy_inode(struct inode *inode)
false);
dump_stack();
}
- kmem_cache_free(ext3_inode_cachep, EXT3_I(inode));
+ call_rcu(&inode->i_rcu, ext3_i_callback);
}
static void init_once(void *foo)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index fb15c9c0be7..cd37f9d5e44 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -841,6 +841,13 @@ static int ext4_drop_inode(struct inode *inode)
return drop;
}
+static void ext4_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
+}
+
static void ext4_destroy_inode(struct inode *inode)
{
ext4_ioend_wait(inode);
@@ -853,7 +860,7 @@ static void ext4_destroy_inode(struct inode *inode)
true);
dump_stack();
}
- kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
+ call_rcu(&inode->i_rcu, ext4_i_callback);
}
static void init_once(void *foo)
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index ad6998a92c3..8cccfebee18 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -514,11 +514,18 @@ static struct inode *fat_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void fat_destroy_inode(struct inode *inode)
+static void fat_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(fat_inode_cachep, MSDOS_I(inode));
}
+static void fat_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, fat_i_callback);
+}
+
static void init_once(void *foo)
{
struct msdos_inode_info *ei = (struct msdos_inode_info *)foo;
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c
index 8c04eac5079..2ba6719ac61 100644
--- a/fs/freevxfs/vxfs_inode.c
+++ b/fs/freevxfs/vxfs_inode.c
@@ -337,6 +337,13 @@ vxfs_iget(struct super_block *sbp, ino_t ino)
return ip;
}
+static void vxfs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(vxfs_inode_cachep, inode->i_private);
+}
+
/**
* vxfs_evict_inode - remove inode from main memory
* @ip: inode to discard.
@@ -350,5 +357,5 @@ vxfs_evict_inode(struct inode *ip)
{
truncate_inode_pages(&ip->i_data, 0);
end_writeback(ip);
- kmem_cache_free(vxfs_inode_cachep, ip->i_private);
+ call_rcu(&ip->i_rcu, vxfs_i_callback);
}
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index cfce3ad86a9..44e0a6c57e8 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -99,6 +99,13 @@ static struct inode *fuse_alloc_inode(struct super_block *sb)
return inode;
}
+static void fuse_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(fuse_inode_cachep, inode);
+}
+
static void fuse_destroy_inode(struct inode *inode)
{
struct fuse_inode *fi = get_fuse_inode(inode);
@@ -106,7 +113,7 @@ static void fuse_destroy_inode(struct inode *inode)
BUG_ON(!list_empty(&fi->queued_writes));
if (fi->forget_req)
fuse_request_free(fi->forget_req);
- kmem_cache_free(fuse_inode_cachep, inode);
+ call_rcu(&inode->i_rcu, fuse_i_callback);
}
void fuse_send_forget(struct fuse_conn *fc, struct fuse_req *req,
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 2b2c4997430..16c2ecac7eb 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1405,11 +1405,18 @@ static struct inode *gfs2_alloc_inode(struct super_block *sb)
return &ip->i_inode;
}
-static void gfs2_destroy_inode(struct inode *inode)
+static void gfs2_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(gfs2_inode_cachep, inode);
}
+static void gfs2_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, gfs2_i_callback);
+}
+
const struct super_operations gfs2_super_ops = {
.alloc_inode = gfs2_alloc_inode,
.destroy_inode = gfs2_destroy_inode,
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 4824c27cebb..ef4ee5716ab 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -167,11 +167,18 @@ static struct inode *hfs_alloc_inode(struct super_block *sb)
return i ? &i->vfs_inode : NULL;
}
-static void hfs_destroy_inode(struct inode *inode)
+static void hfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(hfs_inode_cachep, HFS_I(inode));
}
+static void hfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, hfs_i_callback);
+}
+
static const struct super_operations hfs_super_operations = {
.alloc_inode = hfs_alloc_inode,
.destroy_inode = hfs_destroy_inode,
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 52cc746d3ba..182e83a9079 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -488,11 +488,19 @@ static struct inode *hfsplus_alloc_inode(struct super_block *sb)
return i ? &i->vfs_inode : NULL;
}
-static void hfsplus_destroy_inode(struct inode *inode)
+static void hfsplus_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(hfsplus_inode_cachep, HFSPLUS_I(inode));
}
+static void hfsplus_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, hfsplus_i_callback);
+}
+
#define HFSPLUS_INODE_SIZE sizeof(struct hfsplus_inode_info)
static struct dentry *hfsplus_mount(struct file_system_type *fs_type,
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 39dc505ed27..861113fcfc8 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -247,11 +247,18 @@ static void hostfs_evict_inode(struct inode *inode)
}
}
-static void hostfs_destroy_inode(struct inode *inode)
+static void hostfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kfree(HOSTFS_I(inode));
}
+static void hostfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, hostfs_i_callback);
+}
+
static int hostfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
{
const char *root_path = vfs->mnt_sb->s_fs_info;
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 6c5f01597c3..49935ba78db 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -177,11 +177,18 @@ static struct inode *hpfs_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void hpfs_destroy_inode(struct inode *inode)
+static void hpfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(hpfs_inode_cachep, hpfs_i(inode));
}
+static void hpfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, hpfs_i_callback);
+}
+
static void init_once(void *foo)
{
struct hpfs_inode_info *ei = (struct hpfs_inode_info *) foo;
diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c
index f702b5f713f..87ed48e0343 100644
--- a/fs/hppfs/hppfs.c
+++ b/fs/hppfs/hppfs.c
@@ -632,11 +632,18 @@ void hppfs_evict_inode(struct inode *ino)
mntput(ino->i_sb->s_fs_info);
}
-static void hppfs_destroy_inode(struct inode *inode)
+static void hppfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kfree(HPPFS_I(inode));
}
+static void hppfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, hppfs_i_callback);
+}
+
static const struct super_operations hppfs_sbops = {
.alloc_inode = hppfs_alloc_inode,
.destroy_inode = hppfs_destroy_inode,
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index a5fe68189ee..9885082b470 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -663,11 +663,18 @@ static struct inode *hugetlbfs_alloc_inode(struct super_block *sb)
return &p->vfs_inode;
}
+static void hugetlbfs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(hugetlbfs_inode_cachep, HUGETLBFS_I(inode));
+}
+
static void hugetlbfs_destroy_inode(struct inode *inode)
{
hugetlbfs_inc_free_inodes(HUGETLBFS_SB(inode->i_sb));
mpol_free_shared_policy(&HUGETLBFS_I(inode)->policy);
- kmem_cache_free(hugetlbfs_inode_cachep, HUGETLBFS_I(inode));
+ call_rcu(&inode->i_rcu, hugetlbfs_i_callback);
}
static const struct address_space_operations hugetlbfs_aops = {
diff --git a/fs/inode.c b/fs/inode.c
index 5a0a898f55d..6751dfe8cc0 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -272,6 +272,13 @@ void __destroy_inode(struct inode *inode)
}
EXPORT_SYMBOL(__destroy_inode);
+static void i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(inode_cachep, inode);
+}
+
static void destroy_inode(struct inode *inode)
{
BUG_ON(!list_empty(&inode->i_lru));
@@ -279,7 +286,7 @@ static void destroy_inode(struct inode *inode)
if (inode->i_sb->s_op->destroy_inode)
inode->i_sb->s_op->destroy_inode(inode);
else
- kmem_cache_free(inode_cachep, (inode));
+ call_rcu(&inode->i_rcu, i_callback);
}
/*
@@ -432,6 +439,7 @@ void end_writeback(struct inode *inode)
BUG_ON(!(inode->i_state & I_FREEING));
BUG_ON(inode->i_state & I_CLEAR);
inode_sync_wait(inode);
+ /* don't need i_lock here, no concurrent mods to i_state */
inode->i_state = I_FREEING | I_CLEAR;
}
EXPORT_SYMBOL(end_writeback);
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index d204ee4235f..d8f3a652243 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -81,11 +81,18 @@ static struct inode *isofs_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void isofs_destroy_inode(struct inode *inode)
+static void isofs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(isofs_inode_cachep, ISOFS_I(inode));
}
+static void isofs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, isofs_i_callback);
+}
+
static void init_once(void *foo)
{
struct iso_inode_info *ei = foo;
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index c86041b866a..853b8e30008 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -40,11 +40,18 @@ static struct inode *jffs2_alloc_inode(struct super_block *sb)
return &f->vfs_inode;
}
-static void jffs2_destroy_inode(struct inode *inode)
+static void jffs2_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(jffs2_inode_cachep, JFFS2_INODE_INFO(inode));
}
+static void jffs2_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, jffs2_i_callback);
+}
+
static void jffs2_i_init_once(void *foo)
{
struct jffs2_inode_info *f = foo;
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 0669fc1cc3b..b715b0f7bdf 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -115,6 +115,14 @@ static struct inode *jfs_alloc_inode(struct super_block *sb)
return &jfs_inode->vfs_inode;
}
+static void jfs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ struct jfs_inode_info *ji = JFS_IP(inode);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(jfs_inode_cachep, ji);
+}
+
static void jfs_destroy_inode(struct inode *inode)
{
struct jfs_inode_info *ji = JFS_IP(inode);
@@ -128,7 +136,7 @@ static void jfs_destroy_inode(struct inode *inode)
ji->active_ag = -1;
}
spin_unlock_irq(&ji->ag_lock);
- kmem_cache_free(jfs_inode_cachep, ji);
+ call_rcu(&inode->i_rcu, jfs_i_callback);
}
static int jfs_statfs(struct dentry *dentry, struct kstatfs *buf)
diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c
index d8c71ece098..03b8c240aed 100644
--- a/fs/logfs/inode.c
+++ b/fs/logfs/inode.c
@@ -141,13 +141,20 @@ struct inode *logfs_safe_iget(struct super_block *sb, ino_t ino, int *is_cached)
return __logfs_iget(sb, ino);
}
+static void logfs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(logfs_inode_cache, logfs_inode(inode));
+}
+
static void __logfs_destroy_inode(struct inode *inode)
{
struct logfs_inode *li = logfs_inode(inode);
BUG_ON(li->li_block);
list_del(&li->li_freeing_list);
- kmem_cache_free(logfs_inode_cache, li);
+ call_rcu(&inode->i_rcu, logfs_i_callback);
}
static void logfs_destroy_inode(struct inode *inode)
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index fb2020858a3..ae0b83f476a 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -68,11 +68,18 @@ static struct inode *minix_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void minix_destroy_inode(struct inode *inode)
+static void minix_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(minix_inode_cachep, minix_i(inode));
}
+static void minix_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, minix_i_callback);
+}
+
static void init_once(void *foo)
{
struct minix_inode_info *ei = (struct minix_inode_info *) foo;
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 8fb93b604e7..60047dbeb38 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -58,11 +58,18 @@ static struct inode *ncp_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void ncp_destroy_inode(struct inode *inode)
+static void ncp_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode));
}
+static void ncp_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, ncp_i_callback);
+}
+
static void init_once(void *foo)
{
struct ncp_inode_info *ei = (struct ncp_inode_info *) foo;
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index e67e31c7341..017daa3bed3 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1438,11 +1438,18 @@ struct inode *nfs_alloc_inode(struct super_block *sb)
return &nfsi->vfs_inode;
}
-void nfs_destroy_inode(struct inode *inode)
+static void nfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(nfs_inode_cachep, NFS_I(inode));
}
+void nfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, nfs_i_callback);
+}
+
static inline void nfs4_init_once(struct nfs_inode *nfsi)
{
#ifdef CONFIG_NFS_V4
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index d36fc7ee615..e2dcc9c733f 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -162,10 +162,13 @@ struct inode *nilfs_alloc_inode(struct super_block *sb)
return &ii->vfs_inode;
}
-void nilfs_destroy_inode(struct inode *inode)
+static void nilfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
+ INIT_LIST_HEAD(&inode->i_dentry);
+
if (mdi) {
kfree(mdi->mi_bgl); /* kfree(NULL) is safe */
kfree(mdi);
@@ -173,6 +176,11 @@ void nilfs_destroy_inode(struct inode *inode)
kmem_cache_free(nilfs_inode_cachep, NILFS_I(inode));
}
+void nilfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, nilfs_i_callback);
+}
+
static int nilfs_sync_super(struct nilfs_sb_info *sbi, int flag)
{
struct the_nilfs *nilfs = sbi->s_nilfs;
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 93622b175fc..a627ed82c0a 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -332,6 +332,13 @@ struct inode *ntfs_alloc_big_inode(struct super_block *sb)
return NULL;
}
+static void ntfs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(ntfs_big_inode_cache, NTFS_I(inode));
+}
+
void ntfs_destroy_big_inode(struct inode *inode)
{
ntfs_inode *ni = NTFS_I(inode);
@@ -340,7 +347,7 @@ void ntfs_destroy_big_inode(struct inode *inode)
BUG_ON(ni->page);
if (!atomic_dec_and_test(&ni->count))
BUG();
- kmem_cache_free(ntfs_big_inode_cache, NTFS_I(inode));
+ call_rcu(&inode->i_rcu, ntfs_i_callback);
}
static inline ntfs_inode *ntfs_alloc_extent_inode(void)
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index b2df490a19e..8c5c0eddc36 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -351,11 +351,18 @@ static struct inode *dlmfs_alloc_inode(struct super_block *sb)
return &ip->ip_vfs_inode;
}
-static void dlmfs_destroy_inode(struct inode *inode)
+static void dlmfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(dlmfs_inode_cache, DLMFS_I(inode));
}
+static void dlmfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, dlmfs_i_callback);
+}
+
static void dlmfs_evict_inode(struct inode *inode)
{
int status;
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index cfeab7ce369..17ff46fa8a1 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -569,11 +569,18 @@ static struct inode *ocfs2_alloc_inode(struct super_block *sb)
return &oi->vfs_inode;
}
-static void ocfs2_destroy_inode(struct inode *inode)
+static void ocfs2_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode));
}
+static void ocfs2_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, ocfs2_i_callback);
+}
+
static unsigned long long ocfs2_max_file_offset(unsigned int bbits,
unsigned int cbits)
{
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index 911e61f348f..a2a5bff774e 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -343,11 +343,18 @@ static struct inode *openprom_alloc_inode(struct super_block *sb)
return &oi->vfs_inode;
}
-static void openprom_destroy_inode(struct inode *inode)
+static void openprom_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(op_inode_cachep, OP_I(inode));
}
+static void openprom_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, openprom_i_callback);
+}
+
static struct inode *openprom_iget(struct super_block *sb, ino_t ino)
{
struct inode *inode;
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 3ddb6068177..6bcb926b101 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -65,11 +65,18 @@ static struct inode *proc_alloc_inode(struct super_block *sb)
return inode;
}
-static void proc_destroy_inode(struct inode *inode)
+static void proc_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(proc_inode_cachep, PROC_I(inode));
}
+static void proc_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, proc_i_callback);
+}
+
static void init_once(void *foo)
{
struct proc_inode *ei = (struct proc_inode *) foo;
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index fcada42f1aa..e63b4171d58 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -425,11 +425,18 @@ static struct inode *qnx4_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void qnx4_destroy_inode(struct inode *inode)
+static void qnx4_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(qnx4_inode_cachep, qnx4_i(inode));
}
+static void qnx4_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, qnx4_i_callback);
+}
+
static void init_once(void *foo)
{
struct qnx4_inode_info *ei = (struct qnx4_inode_info *) foo;
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index b243117b875..2575682a9ea 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -529,11 +529,18 @@ static struct inode *reiserfs_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void reiserfs_destroy_inode(struct inode *inode)
+static void reiserfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(reiserfs_inode_cachep, REISERFS_I(inode));
}
+static void reiserfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, reiserfs_i_callback);
+}
+
static void init_once(void *foo)
{
struct reiserfs_inode_info *ei = (struct reiserfs_inode_info *)foo;
diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index 6647f90e55c..2305e3121cb 100644
--- a/fs/romfs/super.c
+++ b/fs/romfs/super.c
@@ -400,11 +400,18 @@ static struct inode *romfs_alloc_inode(struct super_block *sb)
/*
* return a spent inode to the slab cache
*/
-static void romfs_destroy_inode(struct inode *inode)
+static void romfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(romfs_inode_cachep, ROMFS_I(inode));
}
+static void romfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, romfs_i_callback);
+}
+
/*
* get filesystem statistics
*/
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 24de30ba34c..20700b9f2b4 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -440,11 +440,18 @@ static struct inode *squashfs_alloc_inode(struct super_block *sb)
}
-static void squashfs_destroy_inode(struct inode *inode)
+static void squashfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(squashfs_inode_cachep, squashfs_i(inode));
}
+static void squashfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, squashfs_i_callback);
+}
+
static struct file_system_type squashfs_fs_type = {
.owner = THIS_MODULE,
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index de44d067b9e..0630eb969a2 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -333,11 +333,18 @@ static struct inode *sysv_alloc_inode(struct super_block *sb)
return &si->vfs_inode;
}
-static void sysv_destroy_inode(struct inode *inode)
+static void sysv_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(sysv_inode_cachep, SYSV_I(inode));
}
+static void sysv_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, sysv_i_callback);
+}
+
static void init_once(void *p)
{
struct sysv_inode_info *si = (struct sysv_inode_info *)p;
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 91fac54c70e..6e11c2975dc 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -272,12 +272,20 @@ static struct inode *ubifs_alloc_inode(struct super_block *sb)
return &ui->vfs_inode;
};
+static void ubifs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ struct ubifs_inode *ui = ubifs_inode(inode);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(ubifs_inode_slab, ui);
+}
+
static void ubifs_destroy_inode(struct inode *inode)
{
struct ubifs_inode *ui = ubifs_inode(inode);
kfree(ui->data);
- kmem_cache_free(ubifs_inode_slab, inode);
+ call_rcu(&inode->i_rcu, ubifs_i_callback);
}
/*
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 4a5c7c61836..b539d53320f 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -139,11 +139,18 @@ static struct inode *udf_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void udf_destroy_inode(struct inode *inode)
+static void udf_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(udf_inode_cachep, UDF_I(inode));
}
+static void udf_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, udf_i_callback);
+}
+
static void init_once(void *foo)
{
struct udf_inode_info *ei = (struct udf_inode_info *)foo;
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 2c47daed56d..2c61ac5d4e4 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -1412,11 +1412,18 @@ static struct inode *ufs_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void ufs_destroy_inode(struct inode *inode)
+static void ufs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(ufs_inode_cachep, UFS_I(inode));
}
+static void ufs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, ufs_i_callback);
+}
+
static void init_once(void *foo)
{
struct ufs_inode_info *ei = (struct ufs_inode_info *) foo;
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 0cdd26932d8..d7de5a3f786 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -91,6 +91,17 @@ xfs_inode_alloc(
return ip;
}
+STATIC void
+xfs_inode_free_callback(
+ struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ struct xfs_inode *ip = XFS_I(inode);
+
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_zone_free(xfs_inode_zone, ip);
+}
+
void
xfs_inode_free(
struct xfs_inode *ip)
@@ -134,7 +145,7 @@ xfs_inode_free(
ASSERT(!spin_is_locked(&ip->i_flags_lock));
ASSERT(completion_done(&ip->i_flush));
- kmem_zone_free(xfs_inode_zone, ip);
+ call_rcu(&ip->i_vnode.i_rcu, xfs_inode_free_callback);
}
/*