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| author | Hugh Dickins <hugh@veritas.com> | 2009-01-06 14:39:57 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 15:59:06 -0800 |
| commit | f0d7a4b3ed46816f5097d521850a8ab7a0d40f3c (patch) | |
| tree | 521a69aea8b8b67e706f46d602a08c9aca1defd9 /mm/swapfile.c | |
| parent | 858a29900ea2d639759e697be901a60b759cdcfb (diff) | |
| download | lwn-f0d7a4b3ed46816f5097d521850a8ab7a0d40f3c.tar.gz lwn-f0d7a4b3ed46816f5097d521850a8ab7a0d40f3c.zip | |
swapfile: let others seed random
Remove the srandom32((u32)get_seconds()) from non-rotational swapon:
there's been a coincidental discussion of earlier randomization, assume
that goes ahead, let swapon be a client rather than stirring for itself.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Donjun Shin <djshin90@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Joern Engel <joern@logfs.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Tejun Heo <teheo@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index 6a078557306a..d00523601913 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1851,7 +1851,6 @@ asmlinkage long sys_swapon(const char __user * specialfile, int swap_flags) if (blk_queue_nonrot(bdev_get_queue(p->bdev))) { p->flags |= SWP_SOLIDSTATE; - srandom32((u32)get_seconds()); p->cluster_next = 1 + (random32() % p->highest_bit); } if (discard_swap(p) == 0) |