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Merge branch 'for-4.11/next' into for-4.11/linus-merge

Forráskód böngészése 
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jens Axboe
2017-02-17 14:08:19 -07:00
szülő 6010720da8 7520872c0c
commit 818551e2b2
171 fájl változott, egészen pontosan 2500 új sor hozzáadva és 2856 régi sor törölve
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78
kernel/trace/blktrace.c
Fájl megtekintése

@@ -28,6 +28,8 @@
#include <linux/uaccess.h>
#include <linux/list.h>
#include "../../block/blk.h"
#include <trace/events/block.h>
#include "trace_output.h"
@@ -292,9 +294,6 @@ record_it:
local_irq_restore(flags);
}
static struct dentry *blk_tree_root;
static DEFINE_MUTEX(blk_tree_mutex);
static void blk_trace_free(struct blk_trace *bt)
{
debugfs_remove(bt->msg_file);
@@ -433,9 +432,9 @@ static void blk_trace_setup_lba(struct blk_trace *bt,
/*
* Setup everything required to start tracing
*/
int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
struct block_device *bdev,
struct blk_user_trace_setup *buts)
static int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
struct block_device *bdev,
struct blk_user_trace_setup *buts)
{
struct blk_trace *bt = NULL;
struct dentry *dir = NULL;
@@ -468,22 +467,15 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
ret = -ENOENT;
mutex_lock(&blk_tree_mutex);
if (!blk_tree_root) {
blk_tree_root = debugfs_create_dir("block", NULL);
if (!blk_tree_root) {
mutex_unlock(&blk_tree_mutex);
goto err;
}
}
mutex_unlock(&blk_tree_mutex);
dir = debugfs_create_dir(buts->name, blk_tree_root);
if (!blk_debugfs_root)
goto err;
dir = debugfs_lookup(buts->name, blk_debugfs_root);
if (!dir)
bt->dir = dir = debugfs_create_dir(buts->name, blk_debugfs_root);
if (!dir)
goto err;
bt->dir = dir;
bt->dev = dev;
atomic_set(&bt->dropped, 0);
INIT_LIST_HEAD(&bt->running_list);
@@ -525,9 +517,12 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
if (atomic_inc_return(&blk_probes_ref) == 1)
blk_register_tracepoints();
return 0;
ret = 0;
err:
blk_trace_free(bt);
if (dir && !bt->dir)
dput(dir);
if (ret)
blk_trace_free(bt);
return ret;
}
@@ -712,15 +707,13 @@ static void blk_add_trace_rq(struct request_queue *q, struct request *rq,
if (likely(!bt))
return;
if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
if (blk_rq_is_passthrough(rq))
what |= BLK_TC_ACT(BLK_TC_PC);
__blk_add_trace(bt, 0, nr_bytes, req_op(rq), rq->cmd_flags,
what, rq->errors, rq->cmd_len, rq->cmd);
} else {
else
what |= BLK_TC_ACT(BLK_TC_FS);
__blk_add_trace(bt, blk_rq_pos(rq), nr_bytes, req_op(rq),
rq->cmd_flags, what, rq->errors, 0, NULL);
}
__blk_add_trace(bt, blk_rq_trace_sector(rq), nr_bytes, req_op(rq),
rq->cmd_flags, what, rq->errors, 0, NULL);
}
static void blk_add_trace_rq_abort(void *ignore,
@@ -972,11 +965,7 @@ void blk_add_driver_data(struct request_queue *q,
if (likely(!bt))
return;
if (rq->cmd_type == REQ_TYPE_BLOCK_PC)
__blk_add_trace(bt, 0, blk_rq_bytes(rq), 0, 0,
BLK_TA_DRV_DATA, rq->errors, len, data);
else
__blk_add_trace(bt, blk_rq_pos(rq), blk_rq_bytes(rq), 0, 0,
__blk_add_trace(bt, blk_rq_trace_sector(rq), blk_rq_bytes(rq), 0, 0,
BLK_TA_DRV_DATA, rq->errors, len, data);
}
EXPORT_SYMBOL_GPL(blk_add_driver_data);
@@ -1752,31 +1741,6 @@ void blk_trace_remove_sysfs(struct device *dev)
#ifdef CONFIG_EVENT_TRACING
void blk_dump_cmd(char *buf, struct request *rq)
{
int i, end;
int len = rq->cmd_len;
unsigned char *cmd = rq->cmd;
if (rq->cmd_type != REQ_TYPE_BLOCK_PC) {
buf[0] = '\0';
return;
}
for (end = len - 1; end >= 0; end--)
if (cmd[end])
break;
end++;
for (i = 0; i < len; i++) {
buf += sprintf(buf, "%s%02x", i == 0 ? "" : " ", cmd[i]);
if (i == end && end != len - 1) {
sprintf(buf, " ..");
break;
}
}
}
void blk_fill_rwbs(char *rwbs, unsigned int op, int bytes)
{
int i = 0;