From: Vivek Goyal <vgoyal@redhat.com>
To: linux-kernel@vger.kernel.org, axboe@kernel.dk
Cc: vgoyal@redhat.com
Subject: [PATCH 1/4] blkio: Do not export throttle files if CONFIG_BLK_DEV_THROTTLING=n
Date: Tue, 28 Sep 2010 13:10:56 -0400 [thread overview]
Message-ID: <1285693859-13591-2-git-send-email-vgoyal@redhat.com> (raw)
In-Reply-To: <1285693859-13591-1-git-send-email-vgoyal@redhat.com>
Currently throttling related files were visible even if user had disabled
throttling using config options. It was switching off background throttling
of bio but not the cgroup files. This patch fixes it.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
---
block/blk-cgroup.c | 97 +++++++++++++++++++++++++++-------------------------
1 files changed, 50 insertions(+), 47 deletions(-)
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 31a0d4d..1916bc0 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1242,41 +1242,6 @@ struct cftype blkio_files[] = {
.write_u64 = blkiocg_file_write_u64,
},
{
- .name = "throttle.read_bps_device",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_read_bps_device),
- .read_seq_string = blkiocg_file_read,
- .write_string = blkiocg_file_write,
- .max_write_len = 256,
- },
-
- {
- .name = "throttle.write_bps_device",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_write_bps_device),
- .read_seq_string = blkiocg_file_read,
- .write_string = blkiocg_file_write,
- .max_write_len = 256,
- },
-
- {
- .name = "throttle.read_iops_device",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_read_iops_device),
- .read_seq_string = blkiocg_file_read,
- .write_string = blkiocg_file_write,
- .max_write_len = 256,
- },
-
- {
- .name = "throttle.write_iops_device",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_write_iops_device),
- .read_seq_string = blkiocg_file_read,
- .write_string = blkiocg_file_write,
- .max_write_len = 256,
- },
- {
.name = "time",
.private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
BLKIO_PROP_time),
@@ -1295,24 +1260,12 @@ struct cftype blkio_files[] = {
.read_map = blkiocg_file_read_map,
},
{
- .name = "throttle.io_service_bytes",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_io_service_bytes),
- .read_map = blkiocg_file_read_map,
- },
- {
.name = "io_serviced",
.private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
BLKIO_PROP_io_serviced),
.read_map = blkiocg_file_read_map,
},
{
- .name = "throttle.io_serviced",
- .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
- BLKIO_THROTL_io_serviced),
- .read_map = blkiocg_file_read_map,
- },
- {
.name = "io_service_time",
.private = BLKIOFILE_PRIVATE(BLKIO_POLICY_PROP,
BLKIO_PROP_io_service_time),
@@ -1340,6 +1293,56 @@ struct cftype blkio_files[] = {
.name = "reset_stats",
.write_u64 = blkiocg_reset_stats,
},
+#ifdef CONFIG_BLK_DEV_THROTTLING
+ {
+ .name = "throttle.read_bps_device",
+ .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
+ BLKIO_THROTL_read_bps_device),
+ .read_seq_string = blkiocg_file_read,
+ .write_string = blkiocg_file_write,
+ .max_write_len = 256,
+ },
+
+ {
+ .name = "throttle.write_bps_device",
+ .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
+ BLKIO_THROTL_write_bps_device),
+ .read_seq_string = blkiocg_file_read,
+ .write_string = blkiocg_file_write,
+ .max_write_len = 256,
+ },
+
+ {
+ .name = "throttle.read_iops_device",
+ .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
+ BLKIO_THROTL_read_iops_device),
+ .read_seq_string = blkiocg_file_read,
+ .write_string = blkiocg_file_write,
+ .max_write_len = 256,
+ },
+
+ {
+ .name = "throttle.write_iops_device",
+ .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
+ BLKIO_THROTL_write_iops_device),
+ .read_seq_string = blkiocg_file_read,
+ .write_string = blkiocg_file_write,
+ .max_write_len = 256,
+ },
+ {
+ .name = "throttle.io_service_bytes",
+ .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
+ BLKIO_THROTL_io_service_bytes),
+ .read_map = blkiocg_file_read_map,
+ },
+ {
+ .name = "throttle.io_serviced",
+ .private = BLKIOFILE_PRIVATE(BLKIO_POLICY_THROTL,
+ BLKIO_THROTL_io_serviced),
+ .read_map = blkiocg_file_read_map,
+ },
+#endif /* CONFIG_BLK_DEV_THROTTLING */
+
#ifdef CONFIG_DEBUG_BLK_CGROUP
{
.name = "avg_queue_size",
--
1.7.2.3
next prev parent reply other threads:[~2010-09-28 17:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-28 17:10 [PATCH] Various block throttling fixes Vivek Goyal
2010-09-28 17:10 ` Vivek Goyal [this message]
2010-09-28 17:10 ` [PATCH 2/4] blkio: deletion of a cgroup was causes oops Vivek Goyal
2010-09-28 17:10 ` [PATCH 3/4] blkio: Add root group to td->tg_list Vivek Goyal
2010-09-28 17:10 ` [PATCH 4/4] blkio: Recalculate the throttled bio dispatch time upon throttle limit change Vivek Goyal
2010-09-28 17:16 ` Randy Dunlap
2010-09-28 17:36 ` Vivek Goyal
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