path: root/kernel/trace
diff options
authorLinus Torvalds <>2016-05-17 15:29:49 -0700
committerLinus Torvalds <>2016-05-17 15:29:49 -0700
commita4d1dbed0e27030b3c3ca2d1d5c33a1b45bc53d2 (patch)
tree6f92002ba36efbee3adc1e7b2a0d4b0621c1f1a6 /kernel/trace
parentc2e7b207058d4ff6a9010430763fb561f307eb67 (diff)
parentb3a834b1596ac668df206aa2bb1f191c31f5f5e4 (diff)
Merge branch 'for-4.7/core' of git://
Pull core block layer updates from Jens Axboe: "This is the core block IO changes for this merge window. Nothing earth shattering in here, it's mostly just fixes. In detail: - Fix for a long standing issue where wrong ordering in blk-mq caused order_to_size() to spew a warning. From Bart. - Async discard support from Christoph. Basically just splitting our sync interface into a submit + wait part. - Add a cleaner interface for flagging whether a device has a write back cache or not. We've previously overloaded blk_queue_flush() with this, but let's make it more explicit. Drivers cleaned up and updated in the drivers pull request. From me. - Fix for a double check for whether IO accounting is enabled or not. From Michael Callahan. - Fix for the async discard from Mike Snitzer, reinstating the early EOPNOTSUPP return if the device doesn't support discards. - Also from Mike, export bio_inc_remaining() so dm can drop it's private copy of it. - From Ming Lin, add support for passing in an offset for request payloads. - Tag function export from Sagi, which will be used in NVMe in the drivers pull. - Two blktrace related fixes from Shaohua. - Propagate NOMERGE flag when making a request from a bio, also from Shaohua. - An optimization to not parse cgroup paths in blk-throttle, if we don't need to. From Shaohua" * 'for-4.7/core' of git:// blk-mq: fix undefined behaviour in order_to_size() blk-throttle: don't parse cgroup path if trace isn't enabled blktrace: add missed mask name blktrace: delete garbage for message trace block: make bio_inc_remaining() interface accessible again block: reinstate early return of -EOPNOTSUPP from blkdev_issue_discard block: Minor blk_account_io_start usage cleanup block: add __blkdev_issue_discard block: remove struct bio_batch block: copy NOMERGE flag from bio to request block: add ability to flag write back caching on a device blk-mq: Export tagset iter function block: add offset in blk_add_request_payload() writeback: Fix performance regression in wb_over_bg_thresh()
Diffstat (limited to 'kernel/trace')
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index f94e7a21f52d..9aef8654e90d 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1349,6 +1349,7 @@ static enum print_line_t print_one_line(struct trace_iterator *iter,
if (t->action == BLK_TN_MESSAGE) {
log_action(iter, long_act ? "message" : "m");
blk_log_msg(s, iter->ent);
+ return trace_handle_return(s);
if (unlikely(what == 0 || what >= ARRAY_SIZE(what2act)))
@@ -1551,6 +1552,7 @@ static const struct {
{ BLK_TC_COMPLETE, "complete" },
{ BLK_TC_FS, "fs" },
{ BLK_TC_PC, "pc" },
+ { BLK_TC_NOTIFY, "notify" },
{ BLK_TC_AHEAD, "ahead" },
{ BLK_TC_META, "meta" },
{ BLK_TC_DISCARD, "discard" },