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authorWang Long <wanglong19@meituan.com>2018-05-21 05:38:26 +0300
committerTheodore Ts'o <tytso@mit.edu>2018-05-21 05:38:26 +0300
commit8bdd5b60e0273e6682d5c269c70e6287ae60eb55 (patch)
treef7b345a2e9844b29a67c285d482b61ac1a5e1781 /fs/jbd2/revoke.c
parent9196f57151ffe817582efdde4f0b18eaa6637243 (diff)
downloadlinux-8bdd5b60e0273e6682d5c269c70e6287ae60eb55.tar.xz
jbd2: remove NULL check before calling kmem_cache_destroy()
The kmem_cache_destroy() function already checks for null pointers, so we can remove the check at the call site. This patch also sets jbd2_handle_cache and jbd2_inode_cache to be NULL after freeing them in jbd2_journal_destroy_handle_cache(). Signed-off-by: Wang Long <wanglong19@meituan.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/jbd2/revoke.c')
-rw-r--r--fs/jbd2/revoke.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index 696ef15ec942..240779e4689c 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -180,14 +180,10 @@ static struct jbd2_revoke_record_s *find_revoke_record(journal_t *journal,
void jbd2_journal_destroy_revoke_caches(void)
{
- if (jbd2_revoke_record_cache) {
- kmem_cache_destroy(jbd2_revoke_record_cache);
- jbd2_revoke_record_cache = NULL;
- }
- if (jbd2_revoke_table_cache) {
- kmem_cache_destroy(jbd2_revoke_table_cache);
- jbd2_revoke_table_cache = NULL;
- }
+ kmem_cache_destroy(jbd2_revoke_record_cache);
+ jbd2_revoke_record_cache = NULL;
+ kmem_cache_destroy(jbd2_revoke_table_cache);
+ jbd2_revoke_table_cache = NULL;
}
int __init jbd2_journal_init_revoke_caches(void)