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| author | Jens Axboe <axboe@suse.de> | 2006-07-23 02:12:01 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@nelson.home.kernel.dk> | 2006-09-30 20:29:43 +0200 |
| commit | 7457e6e2d7406c7009e9ad03db1335fe93b5fb71 (patch) | |
| tree | b1653b11f3fe9a2d9a061aec7c4747a9809ecdb1 /block | |
| parent | 374f84ac39ec7829a57a66efd5125d3561ff0e00 (diff) | |
| download | linux-stable-7457e6e2d7406c7009e9ad03db1335fe93b5fb71.tar.gz | |
[PATCH] blktrace: support for logging metadata reads
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blktrace.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/block/blktrace.c b/block/blktrace.c index 8ff33441d8a2..2592f215a905 100644 --- a/block/blktrace.c +++ b/block/blktrace.c @@ -69,7 +69,7 @@ static u32 ddir_act[2] __read_mostly = { BLK_TC_ACT(BLK_TC_READ), BLK_TC_ACT(BLK /* * Bio action bits of interest */ -static u32 bio_act[5] __read_mostly = { 0, BLK_TC_ACT(BLK_TC_BARRIER), BLK_TC_ACT(BLK_TC_SYNC), 0, BLK_TC_ACT(BLK_TC_AHEAD) }; +static u32 bio_act[9] __read_mostly = { 0, BLK_TC_ACT(BLK_TC_BARRIER), BLK_TC_ACT(BLK_TC_SYNC), 0, BLK_TC_ACT(BLK_TC_AHEAD), 0, 0, 0, BLK_TC_ACT(BLK_TC_META) }; /* * More could be added as needed, taking care to increment the decrementer @@ -81,6 +81,8 @@ static u32 bio_act[5] __read_mostly = { 0, BLK_TC_ACT(BLK_TC_BARRIER), BLK_TC_AC (((rw) & (1 << BIO_RW_SYNC)) >> (BIO_RW_SYNC - 1)) #define trace_ahead_bit(rw) \ (((rw) & (1 << BIO_RW_AHEAD)) << (2 - BIO_RW_AHEAD)) +#define trace_meta_bit(rw) \ + (((rw) & (1 << BIO_RW_META)) >> (BIO_RW_META - 3)) /* * The worker for the various blk_add_trace*() types. Fills out a @@ -103,6 +105,7 @@ void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes, what |= bio_act[trace_barrier_bit(rw)]; what |= bio_act[trace_sync_bit(rw)]; what |= bio_act[trace_ahead_bit(rw)]; + what |= bio_act[trace_meta_bit(rw)]; pid = tsk->pid; if (unlikely(act_log_check(bt, what, sector, pid))) |