jbd2: use kmem_cache_zalloc instead of kmem_cache_alloc/memset
The jbd2_alloc_handle() function is only called by new_handle(). So
this commit uses kmem_cache_zalloc() instead of
kmem_cache_alloc()/memset().
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 325bc01..a1920da 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -332,7 +332,6 @@
handle_t *handle = jbd2_alloc_handle(GFP_NOFS);
if (!handle)
return NULL;
- memset(handle, 0, sizeof(*handle));
handle->h_buffer_credits = nblocks;
handle->h_ref = 1;
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index f9fe889..6e051f4 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1145,7 +1145,7 @@
static inline handle_t *jbd2_alloc_handle(gfp_t gfp_flags)
{
- return kmem_cache_alloc(jbd2_handle_cache, gfp_flags);
+ return kmem_cache_zalloc(jbd2_handle_cache, gfp_flags);
}
static inline void jbd2_free_handle(handle_t *handle)