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| author |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-23 16:24:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-23 16:24:24 -0800 |
| commit | cec6062037783a762aa5606b06b8bc5c14d9657f (patch) | |
| tree | c862659eb55e44314f6d524f5479204994b91901 /drivers | |
| parent | Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb (diff) | |
| parent | [PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23 (diff) | |
| download | linux-dev-cec6062037783a762aa5606b06b8bc5c14d9657f.tar.xz linux-dev-cec6062037783a762aa5606b06b8bc5c14d9657f.zip | |
Merge branch 'blktrace' of git://brick.kernel.dk/data/git/linux-2.6-block
* 'blktrace' of git://brick.kernel.dk/data/git/linux-2.6-block:
[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23
[PATCH] relay: consolidate sendfile() and read() code
[PATCH] relay: add sendfile() support
[PATCH] relay: migrate from relayfs to a generic relay API
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/cciss.c | 2 | ||||
| -rw-r--r-- | drivers/md/dm.c | 13 |
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index e29b8926f80e..1f2890989b56 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -38,6 +38,7 @@ #include <linux/hdreg.h> #include <linux/spinlock.h> #include <linux/compat.h> +#include <linux/blktrace_api.h> #include <asm/uaccess.h> #include <asm/io.h> @@ -2331,6 +2332,7 @@ static inline void complete_command( ctlr_info_t *h, CommandList_struct *cmd, cmd->rq->completion_data = cmd; cmd->rq->errors = status; + blk_add_trace_rq(cmd->rq->q, cmd->rq, BLK_TA_COMPLETE); blk_complete_request(cmd->rq); } diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 26b08ee425c7..8c82373f7ff3 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -17,6 +17,7 @@ #include <linux/mempool.h> #include <linux/slab.h> #include <linux/idr.h> +#include <linux/blktrace_api.h> static const char *_name = DM_NAME; @@ -334,6 +335,8 @@ static void dec_pending(struct dm_io *io, int error) /* nudge anyone waiting on suspend queue */ wake_up(&io->md->wait); + blk_add_trace_bio(io->md->queue, io->bio, BLK_TA_COMPLETE); + bio_endio(io->bio, io->bio->bi_size, io->error); free_io(io->md, io); } @@ -392,6 +395,7 @@ static void __map_bio(struct dm_target *ti, struct bio *clone, struct target_io *tio) { int r; + sector_t sector; /* * Sanity checks. @@ -407,10 +411,17 @@ static void __map_bio(struct dm_target *ti, struct bio *clone, * this io. */ atomic_inc(&tio->io->io_count); + sector = clone->bi_sector; r = ti->type->map(ti, clone, &tio->info); - if (r > 0) + if (r > 0) { /* the bio has been remapped so dispatch it */ + + blk_add_trace_remap(bdev_get_queue(clone->bi_bdev), clone, + tio->io->bio->bi_bdev->bd_dev, sector, + clone->bi_sector); + generic_make_request(clone); + } else if (r < 0) { /* error the io and bail out */ |