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drivers/char/random.c:write_pool() cond_resched() needed

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Reduce latency for large writes to /dev/[u]random

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Sami Farin <safari-kernel@safari.iki.fi>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Matt Mackall 2008-02-06 01:37:20 -08:00 committed by Linus Torvalds
parent 5ab24c79af
commit 91f3f1e304
1 changed files with 1 additions and 0 deletions
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drivers/char/random.c
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@ -1039,6 +1039,7 @@ write_pool(struct entropy_store *r, const char __user *buffer, size_t count)
p += bytes;
add_entropy_words(r, buf, (bytes + 3) / 4);
cond_resched();
}
return 0;