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| author | Arjan van de Ven <arjan@infradead.org> | 2006-01-06 09:46:02 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@suse.de> | 2006-01-06 09:46:02 +0100 |
| commit | 64100099ed22f71cce656c5c2caecf5c9cf255dc (patch) | |
| tree | f6ebf7c94ee2eeb080d25880ffca839ec39ec47e /block/scsi_ioctl.c | |
| parent | 80cfd548eed68cf90c5ae9cfcd6b02230cece756 (diff) | |
| download | lwn-64100099ed22f71cce656c5c2caecf5c9cf255dc.tar.gz lwn-64100099ed22f71cce656c5c2caecf5c9cf255dc.zip | |
[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 <arjan@infradead.org>
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'block/scsi_ioctl.c')
| -rw-r--r-- | block/scsi_ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 1d8852f7bbff..c2ac36dfe4f3 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -46,7 +46,7 @@ EXPORT_SYMBOL(scsi_command_size); static int sg_get_version(int __user *p) { - static int sg_version_num = 30527; + static const int sg_version_num = 30527; return put_user(sg_version_num, p); } |