[PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc().

Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the
corresponding "kmem_cache_zalloc()" call.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Roland McGrath <roland@redhat.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Acked-by: Joel Becker <Joel.Becker@oracle.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Jan Kara <jack@ucw.cz>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index d0541ae8faba..fe41ab1566ee 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -378,15 +378,13 @@ ecryptfs_fill_super(struct super_block *sb, void *raw_data, int silent)
 
         /* Released in ecryptfs_put_super() */
         ecryptfs_set_superblock_private(sb,
-                                        kmem_cache_alloc(ecryptfs_sb_info_cache,
+                                        kmem_cache_zalloc(ecryptfs_sb_info_cache,
                                                          GFP_KERNEL));
         if (!ecryptfs_superblock_to_private(sb)) {
                 ecryptfs_printk(KERN_WARNING, "Out of memory\n");
                 rc = -ENOMEM;
                 goto out;
         }
-        memset(ecryptfs_superblock_to_private(sb), 0,
-               sizeof(struct ecryptfs_sb_info));
         sb->s_op = &ecryptfs_sops;
         /* Released through deactivate_super(sb) from get_sb_nodev */
         sb->s_root = d_alloc(NULL, &(const struct qstr) {
@@ -402,7 +400,7 @@ ecryptfs_fill_super(struct super_block *sb, void *raw_data, int silent)
         /* Released in d_release when dput(sb->s_root) is called */
         /* through deactivate_super(sb) from get_sb_nodev() */
         ecryptfs_set_dentry_private(sb->s_root,
-                                    kmem_cache_alloc(ecryptfs_dentry_info_cache,
+                                    kmem_cache_zalloc(ecryptfs_dentry_info_cache,
                                                      GFP_KERNEL));
         if (!ecryptfs_dentry_to_private(sb->s_root)) {
                 ecryptfs_printk(KERN_ERR,
@@ -410,8 +408,6 @@ ecryptfs_fill_super(struct super_block *sb, void *raw_data, int silent)
                 rc = -ENOMEM;
                 goto out;
         }
-        memset(ecryptfs_dentry_to_private(sb->s_root), 0,
-               sizeof(struct ecryptfs_dentry_info));
         rc = 0;
 out:
         /* Should be able to rely on deactivate_super called from