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

Reduce latency for large writes to /dev/[u]random Signed-off-by: Matt Mackall <[email protected]> Cc: Sami Farin <[email protected]> Cc: Theodore Ts'o <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
kyagi · Feb 6, 2008 · 91f3f1e · 91f3f1e
1 parent 5ab24c7
commit 91f3f1e
Showing 1 changed file with 1 addition and 0 deletions.
diff --git 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;