From 64100099ed22f71cce656c5c2caecf5c9cf255dc Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Fri, 6 Jan 2006 09:46:02 +0100 Subject: [BLOCK] mark some block/ variables cons the patch below marks various read-only variables in block/* as const, so that gcc can optimize the use of them; eg gcc will replace the use by the value directly now and will even remove the memory usage of these. Signed-off-by: Arjan van de Ven Signed-off-by: Jens Axboe --- block/deadline-iosched.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'block/deadline-iosched.c') diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c index 9cbec09e841..27e494b1bf9 100644 --- a/block/deadline-iosched.c +++ b/block/deadline-iosched.c @@ -19,10 +19,10 @@ /* * See Documentation/block/deadline-iosched.txt */ -static int read_expire = HZ / 2; /* max time before a read is submitted. */ -static int write_expire = 5 * HZ; /* ditto for writes, these limits are SOFT! */ -static int writes_starved = 2; /* max times reads can starve a write */ -static int fifo_batch = 16; /* # of sequential requests treated as one +static const int read_expire = HZ / 2; /* max time before a read is submitted. */ +static const int write_expire = 5 * HZ; /* ditto for writes, these limits are SOFT! */ +static const int writes_starved = 2; /* max times reads can starve a write */ +static const int fifo_batch = 16; /* # of sequential requests treated as one by the above parameters. For throughput. */ static const int deadline_hash_shift = 5; -- cgit v1.2.3