Messages in this thread Patch in this message | | | Date | Tue, 18 Mar 2008 18:31:48 +0900 (JST) | Subject | [PATCH 4/4] Block I/O tracking | From | Hirokazu Takahashi <> |
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Hi,
With this patch, dm-ioband can work with the bio cgroup.
Signed-off-by: Hirokazu Takahashi <taka@valinux.co.jp>
--- linux-2.6.25-rc3.ioload/drivers/md/dm-ioband-type.c 2008-03-13 22:27:45.000000000 +0900 +++ linux-2.6.25-rc3-mm1/drivers/md/dm-ioband-type.c 2008-03-17 15:57:32.000000000 +0900 @@ -6,6 +6,7 @@ * This file is released under the GPL. */ #include <linux/bio.h> +#include <linux/biocontrol.h> #include "dm.h" #include "dm-bio-list.h" #include "dm-ioband.h" @@ -57,13 +58,7 @@ static int ioband_node(struct bio *bio) static int ioband_cgroup(struct bio *bio) { - /* - * This function should return the ID of the cgroup which issued "bio". - * The ID of the cgroup which the current process belongs to won't be - * suitable ID for this purpose, since some BIOs will be handled by kernel - * threads like aio or pdflush on behalf of the process requesting the BIOs. - */ - return 0; /* not implemented yet */ + return get_bio_cgroup_id(bio->bi_io_vec[0].bv_page); } struct group_type dm_ioband_group_type[] = {
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