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| author | Matt Mackall <mpm@selenic.com> | 2008-02-06 01:37:20 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-06 10:41:06 -0800 |
| commit | 91f3f1e304f2e9ff2c8b9c76efd4fb8ff93110f7 (patch) | |
| tree | 1a36c20c159b4ad24b16201dfe5e741dc31c563d | |
| parent | 5ab24c79af5a05659f68eae3e5f232c9a15359d7 (diff) | |
| download | blackbird-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>
| -rw-r--r-- | drivers/char/random.c | 1 |
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; |
