lkml.org 
[lkml]   [2017]   [Jun]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 08/13] cifs: use get_random_u32 for 32-bit lock random
Date
Using get_random_u32 here is faster, more fitting of the use case, and
just as cryptographically secure. It also has the benefit of providing
better randomness at early boot, which is sometimes when this is used.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Steve French <sfrench@samba.org>
---
fs/cifs/cifsfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 9a1667e0e8d6..fe0c8dcc7dc7 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1359,7 +1359,7 @@ init_cifs(void)
spin_lock_init(&cifs_tcp_ses_lock);
spin_lock_init(&GlobalMid_Lock);

- get_random_bytes(&cifs_lock_secret, sizeof(cifs_lock_secret));
+ cifs_lock_secret = get_random_u32();

if (cifs_max_pending < 2) {
cifs_max_pending = 2;
--
2.13.0
\
 
 \ /
  Last update: 2017-06-12 00:37    [W:0.118 / U:0.956 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site