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cifs: use get_random_u32 for 32-bit lock random

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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>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Jason A. Donenfeld 2017-06-07 20:42:50 -04:00 committed by Theodore Ts'o
parent da9ba564bd
commit 51b0817b0d
1 changed files with 1 additions and 1 deletions
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2
fs/cifs/cifsfs.c
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@ -1359,7 +1359,7 @@ init_cifs(void)
spin_lock_init(&cifs_tcp_ses_lock); spin_lock_init(&cifs_tcp_ses_lock);
spin_lock_init(&GlobalMid_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) { if (cifs_max_pending < 2) {
cifs_max_pending = 2; cifs_max_pending = 2;