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authorMatt Mackall <mpm@selenic.com>2008-02-06 01:37:20 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-06 10:41:06 -0800
commit91f3f1e304f2e9ff2c8b9c76efd4fb8ff93110f7 (patch)
tree1a36c20c159b4ad24b16201dfe5e741dc31c563d /drivers/char
parent5ab24c79af5a05659f68eae3e5f232c9a15359d7 (diff)
downloadblackbird-op-linux-91f3f1e304f2e9ff2c8b9c76efd4fb8ff93110f7.tar.gz
blackbird-op-linux-91f3f1e304f2e9ff2c8b9c76efd4fb8ff93110f7.zip
drivers/char/random.c:write_pool() cond_resched() needed
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>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/random.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c
index c511a831f0c0..f43c89f7c449 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -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;
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