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authorKinglong Mee <kinglongmee@gmail.com>2016-01-29 16:36:35 +0300
committerDavid Sterba <dsterba@suse.com>2016-02-18 13:46:03 +0300
commit5598e9005a4076d6700bbd89d0cdbe5b2922a846 (patch)
treef0d5eb3931d5c990d23dabc39458248cbda6fbe2 /fs/btrfs
parent89771cc98c5a4e8666e479dde171ffb52c6fa774 (diff)
downloadlinux-5598e9005a4076d6700bbd89d0cdbe5b2922a846.tar.xz
btrfs: drop null testing before destroy functions
Cleanup. kmem_cache_destroy has support NULL argument checking, so drop the double null testing before calling it. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/backref.c3
-rw-r--r--fs/btrfs/delayed-inode.c3
-rw-r--r--fs/btrfs/delayed-ref.c12
-rw-r--r--fs/btrfs/disk-io.c3
-rw-r--r--fs/btrfs/extent_io.c6
-rw-r--r--fs/btrfs/extent_map.c3
-rw-r--r--fs/btrfs/file.c3
-rw-r--r--fs/btrfs/inode.c15
-rw-r--r--fs/btrfs/ordered-data.c3
9 files changed, 17 insertions, 34 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index dc6e9a32d019..447d0ac736db 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -148,8 +148,7 @@ int __init btrfs_prelim_ref_init(void)
void btrfs_prelim_ref_exit(void)
{
- if (btrfs_prelim_ref_cache)
- kmem_cache_destroy(btrfs_prelim_ref_cache);
+ kmem_cache_destroy(btrfs_prelim_ref_cache);
}
/*
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 0be47e4b8136..716a4ec77332 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -43,8 +43,7 @@ int __init btrfs_delayed_inode_init(void)
void btrfs_delayed_inode_exit(void)
{
- if (delayed_node_cache)
- kmem_cache_destroy(delayed_node_cache);
+ kmem_cache_destroy(delayed_node_cache);
}
static inline void btrfs_init_delayed_node(
diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index 914ac13bd92f..430b3689b112 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -929,14 +929,10 @@ btrfs_find_delayed_ref_head(struct btrfs_trans_handle *trans, u64 bytenr)
void btrfs_delayed_ref_exit(void)
{
- if (btrfs_delayed_ref_head_cachep)
- kmem_cache_destroy(btrfs_delayed_ref_head_cachep);
- if (btrfs_delayed_tree_ref_cachep)
- kmem_cache_destroy(btrfs_delayed_tree_ref_cachep);
- if (btrfs_delayed_data_ref_cachep)
- kmem_cache_destroy(btrfs_delayed_data_ref_cachep);
- if (btrfs_delayed_extent_op_cachep)
- kmem_cache_destroy(btrfs_delayed_extent_op_cachep);
+ kmem_cache_destroy(btrfs_delayed_ref_head_cachep);
+ kmem_cache_destroy(btrfs_delayed_tree_ref_cachep);
+ kmem_cache_destroy(btrfs_delayed_data_ref_cachep);
+ kmem_cache_destroy(btrfs_delayed_extent_op_cachep);
}
int btrfs_delayed_ref_init(void)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 4545e2e2ad45..19f8e5bd7dfb 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -110,8 +110,7 @@ int __init btrfs_end_io_wq_init(void)
void btrfs_end_io_wq_exit(void)
{
- if (btrfs_end_io_wq_cache)
- kmem_cache_destroy(btrfs_end_io_wq_cache);
+ kmem_cache_destroy(btrfs_end_io_wq_cache);
}
/*
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index f3910ac00d89..96d24d049797 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -206,10 +206,8 @@ void extent_io_exit(void)
* destroy caches.
*/
rcu_barrier();
- if (extent_state_cache)
- kmem_cache_destroy(extent_state_cache);
- if (extent_buffer_cache)
- kmem_cache_destroy(extent_buffer_cache);
+ kmem_cache_destroy(extent_state_cache);
+ kmem_cache_destroy(extent_buffer_cache);
if (btrfs_bioset)
bioset_free(btrfs_bioset);
}
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 84fb56d5c018..cdbadeaef202 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -20,8 +20,7 @@ int __init extent_map_init(void)
void extent_map_exit(void)
{
- if (extent_map_cache)
- kmem_cache_destroy(extent_map_cache);
+ kmem_cache_destroy(extent_map_cache);
}
/**
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 610f56992464..b387fb53a880 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2939,8 +2939,7 @@ const struct file_operations btrfs_file_operations = {
void btrfs_auto_defrag_exit(void)
{
- if (btrfs_inode_defrag_cachep)
- kmem_cache_destroy(btrfs_inode_defrag_cachep);
+ kmem_cache_destroy(btrfs_inode_defrag_cachep);
}
int btrfs_auto_defrag_init(void)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index cf0b3795364a..f067c77425bd 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -9178,16 +9178,11 @@ void btrfs_destroy_cachep(void)
* destroy cache.
*/
rcu_barrier();
- if (btrfs_inode_cachep)
- kmem_cache_destroy(btrfs_inode_cachep);
- if (btrfs_trans_handle_cachep)
- kmem_cache_destroy(btrfs_trans_handle_cachep);
- if (btrfs_transaction_cachep)
- kmem_cache_destroy(btrfs_transaction_cachep);
- if (btrfs_path_cachep)
- kmem_cache_destroy(btrfs_path_cachep);
- if (btrfs_free_space_cachep)
- kmem_cache_destroy(btrfs_free_space_cachep);
+ kmem_cache_destroy(btrfs_inode_cachep);
+ kmem_cache_destroy(btrfs_trans_handle_cachep);
+ kmem_cache_destroy(btrfs_transaction_cachep);
+ kmem_cache_destroy(btrfs_path_cachep);
+ kmem_cache_destroy(btrfs_free_space_cachep);
}
int btrfs_init_cachep(void)
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 8c27292ea9ea..988eb1513aa5 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -1114,6 +1114,5 @@ int __init ordered_data_init(void)
void ordered_data_exit(void)
{
- if (btrfs_ordered_extent_cache)
- kmem_cache_destroy(btrfs_ordered_extent_cache);
+ kmem_cache_destroy(btrfs_ordered_extent_cache);
}