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| author | Tejun Heo <tj@kernel.org> | 2012-04-13 13:11:28 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-04-20 10:06:06 +0200 |
| commit | 8bd435b30ecacb69bbb8b2d3e251f770b807c5b2 (patch) | |
| tree | a1a50e95517a54a578af3967fb4016a5a1a42a68 /block/blk-throttle.c | |
| parent | ec399347d39fb2337ebace928cf4a2855bd0ec37 (diff) | |
| download | lwn-8bd435b30ecacb69bbb8b2d3e251f770b807c5b2.tar.gz lwn-8bd435b30ecacb69bbb8b2d3e251f770b807c5b2.zip | |
blkcg: remove static policy ID enums
Remove BLKIO_POLICY_* enums and let blkio_policy_register() allocate
@pol->plid dynamically on registration. The maximum number of blkcg
policies which can be registered at the same time is defined by
BLKCG_MAX_POLS constant added to include/linux/blkdev.h.
Note that blkio_policy_register() now may fail. Policy init functions
updated accordingly and unnecessary ifdefs removed from cfq_init().
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-throttle.c')
| -rw-r--r-- | block/blk-throttle.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 07c17c27a628..0dc4645aa7fe 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -1089,7 +1089,6 @@ static struct blkio_policy_type blkio_policy_throtl = { .blkio_exit_group_fn = throtl_exit_blkio_group, .blkio_reset_group_stats_fn = throtl_reset_group_stats, }, - .plid = BLKIO_POLICY_THROTL, .pdata_size = sizeof(struct throtl_grp), .cftypes = throtl_files, }; @@ -1271,8 +1270,7 @@ static int __init throtl_init(void) if (!kthrotld_workqueue) panic("Failed to create kthrotld\n"); - blkio_policy_register(&blkio_policy_throtl); - return 0; + return blkio_policy_register(&blkio_policy_throtl); } module_init(throtl_init); |