From: Hans Holmberg <hans.ml.holmberg@owltronix.com>
To: Matias Bjorling <mb@lightnvm.io>
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
Javier Gonzales <javier@cnexlabs.com>,
Hans Holmberg <hans.holmberg@cnexlabs.com>
Subject: [PATCH 2/4] lightnvm: pblk: add trace events for line state changes
Date: Wed, 29 Aug 2018 14:31:15 +0200 [thread overview]
Message-ID: <1535545877-770-3-git-send-email-hans.ml.holmberg@owltronix.com> (raw)
In-Reply-To: <1535545877-770-1-git-send-email-hans.ml.holmberg@owltronix.com>
From: Hans Holmberg <hans.holmberg@cnexlabs.com>
Add trace events for logging for line state changes.
Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
---
drivers/lightnvm/pblk-core.c | 19 ++++++++++++++++++-
drivers/lightnvm/pblk-gc.c | 8 ++++++++
drivers/lightnvm/pblk-init.c | 3 +++
drivers/lightnvm/pblk-recovery.c | 6 ++++++
drivers/lightnvm/pblk-trace.h | 33 +++++++++++++++++++++++++++++++++
5 files changed, 68 insertions(+), 1 deletion(-)
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 4da37e29bb06..05775a279b20 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -413,6 +413,9 @@ struct list_head *pblk_line_gc_list(struct pblk *pblk, struct pblk_line *line)
}
} else {
line->state = PBLK_LINESTATE_CORRUPT;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
+
line->gc_group = PBLK_LINEGC_NONE;
move_list = &l_mg->corrupt_list;
pblk_err(pblk, "corrupted vsc for line %d, vsc:%d (%d/%d/%d)\n",
@@ -1019,6 +1022,8 @@ static int pblk_line_init_metadata(struct pblk *pblk, struct pblk_line *line,
spin_lock(&l_mg->free_lock);
spin_lock(&line->lock);
line->state = PBLK_LINESTATE_BAD;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
spin_unlock(&line->lock);
list_add_tail(&line->list, &l_mg->bad_list);
@@ -1166,6 +1171,8 @@ static int pblk_line_init_bb(struct pblk *pblk, struct pblk_line *line,
bitmap_weight(line->invalid_bitmap, lm->sec_per_line)) {
spin_lock(&line->lock);
line->state = PBLK_LINESTATE_BAD;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
spin_unlock(&line->lock);
list_add_tail(&line->list, &l_mg->bad_list);
@@ -1218,6 +1225,8 @@ static int pblk_line_prepare(struct pblk *pblk, struct pblk_line *line)
if (line->state == PBLK_LINESTATE_NEW) {
blk_to_erase = pblk_prepare_new_line(pblk, line);
line->state = PBLK_LINESTATE_FREE;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
} else {
blk_to_erase = blk_in_line;
}
@@ -1235,6 +1244,8 @@ static int pblk_line_prepare(struct pblk *pblk, struct pblk_line *line)
}
line->state = PBLK_LINESTATE_OPEN;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
atomic_set(&line->left_eblks, blk_to_erase);
atomic_set(&line->left_seblks, blk_to_erase);
@@ -1331,6 +1342,8 @@ struct pblk_line *pblk_line_get(struct pblk *pblk)
if (unlikely(bit >= lm->blk_per_line)) {
spin_lock(&line->lock);
line->state = PBLK_LINESTATE_BAD;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
spin_unlock(&line->lock);
list_add_tail(&line->list, &l_mg->bad_list);
@@ -1650,6 +1663,8 @@ static void __pblk_line_put(struct pblk *pblk, struct pblk_line *line)
spin_lock(&line->lock);
WARN_ON(line->state != PBLK_LINESTATE_GC);
line->state = PBLK_LINESTATE_FREE;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
line->gc_group = PBLK_LINEGC_NONE;
pblk_line_free(line);
@@ -1779,7 +1794,6 @@ void pblk_line_close(struct pblk *pblk, struct pblk_line *line)
WARN_ON(line->state != PBLK_LINESTATE_OPEN);
line->state = PBLK_LINESTATE_CLOSED;
move_list = pblk_line_gc_list(pblk, line);
-
list_add_tail(&line->list, move_list);
mempool_free(line->map_bitmap, l_mg->bitmap_pool);
@@ -1798,6 +1812,9 @@ void pblk_line_close(struct pblk *pblk, struct pblk_line *line)
spin_unlock(&line->lock);
spin_unlock(&l_mg->gc_lock);
+
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
}
void pblk_line_close_meta(struct pblk *pblk, struct pblk_line *line)
diff --git a/drivers/lightnvm/pblk-gc.c b/drivers/lightnvm/pblk-gc.c
index 157c2567c9e8..b841d84c4342 100644
--- a/drivers/lightnvm/pblk-gc.c
+++ b/drivers/lightnvm/pblk-gc.c
@@ -16,8 +16,10 @@
*/
#include "pblk.h"
+#include "pblk-trace.h"
#include <linux/delay.h>
+
static void pblk_gc_free_gc_rq(struct pblk_gc_rq *gc_rq)
{
if (gc_rq->data)
@@ -64,6 +66,8 @@ static void pblk_put_line_back(struct pblk *pblk, struct pblk_line *line)
spin_lock(&line->lock);
WARN_ON(line->state != PBLK_LINESTATE_GC);
line->state = PBLK_LINESTATE_CLOSED;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
move_list = pblk_line_gc_list(pblk, line);
spin_unlock(&line->lock);
@@ -405,6 +409,8 @@ void pblk_gc_free_full_lines(struct pblk *pblk)
spin_lock(&line->lock);
WARN_ON(line->state != PBLK_LINESTATE_CLOSED);
line->state = PBLK_LINESTATE_GC;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
spin_unlock(&line->lock);
list_del(&line->list);
@@ -451,6 +457,8 @@ static void pblk_gc_run(struct pblk *pblk)
spin_lock(&line->lock);
WARN_ON(line->state != PBLK_LINESTATE_CLOSED);
line->state = PBLK_LINESTATE_GC;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
spin_unlock(&line->lock);
list_del(&line->list);
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 3f8bae9be852..ddbd91d80119 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -971,6 +971,9 @@ static int pblk_lines_init(struct pblk *pblk)
goto fail_free_lines;
nr_free_chks += pblk_setup_line_meta(pblk, line, chunk_meta, i);
+
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
}
if (!nr_free_chks) {
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index eea901d7cebc..f4c5318e99d7 100644
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -15,6 +15,7 @@
*/
#include "pblk.h"
+#include "pblk-trace.h"
int pblk_recov_check_emeta(struct pblk *pblk, struct line_emeta *emeta_buf)
{
@@ -932,6 +933,8 @@ struct pblk_line *pblk_recov_l2p(struct pblk *pblk)
spin_lock(&line->lock);
line->state = PBLK_LINESTATE_CLOSED;
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
move_list = pblk_line_gc_list(pblk, line);
spin_unlock(&line->lock);
@@ -947,6 +950,9 @@ struct pblk_line *pblk_recov_l2p(struct pblk *pblk)
if (open_lines > 1)
pblk_err(pblk, "failed to recover L2P\n");
+ trace_pblk_line_state(pblk_disk_name(pblk), line->id,
+ line->state);
+
open_lines++;
line->meta_line = meta_line;
data_line = line;
diff --git a/drivers/lightnvm/pblk-trace.h b/drivers/lightnvm/pblk-trace.h
index d985b729428f..f9aa9e25e428 100644
--- a/drivers/lightnvm/pblk-trace.h
+++ b/drivers/lightnvm/pblk-trace.h
@@ -15,6 +15,16 @@ struct ppa_addr;
{ NVM_CHK_ST_OPEN, "OPEN", }, \
{ NVM_CHK_ST_OFFLINE, "OFFLINE", })
+#define show_line_state(state) __print_symbolic(state, \
+ { PBLK_LINESTATE_NEW, "NEW", }, \
+ { PBLK_LINESTATE_FREE, "FREE", }, \
+ { PBLK_LINESTATE_OPEN, "OPEN", }, \
+ { PBLK_LINESTATE_CLOSED, "CLOSED", }, \
+ { PBLK_LINESTATE_GC, "GC", }, \
+ { PBLK_LINESTATE_BAD, "BAD", }, \
+ { PBLK_LINESTATE_CORRUPT, "CORRUPT" })
+
+
TRACE_EVENT(pblk_chunk_state,
TP_PROTO(const char *name, struct ppa_addr *ppa, int state),
@@ -41,6 +51,29 @@ TRACE_EVENT(pblk_chunk_state,
);
+TRACE_EVENT(pblk_line_state,
+
+ TP_PROTO(const char *name, int line, int state),
+
+ TP_ARGS(name, line, state),
+
+ TP_STRUCT__entry(
+ __string(name, name)
+ __field(int, line)
+ __field(int, state);
+ ),
+
+ TP_fast_assign(
+ __assign_str(name, name);
+ __entry->line = line;
+ __entry->state = state;
+ ),
+
+ TP_printk("dev=%s line=%d state=%s", __get_str(name),
+ (int)__entry->line,
+ show_line_state((int)__entry->state))
+
+);
#endif /* !defined(_TRACE_PBLK_H) || defined(TRACE_HEADER_MULTI_READ) */
--
2.7.4
next prev parent reply other threads:[~2018-08-29 12:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-29 12:31 [PATCH 0/4] Introduce trace events for pblk Hans Holmberg
2018-08-29 12:31 ` [PATCH 1/4] lightnvm: pblk: add trace events for chunk states Hans Holmberg
2018-08-29 12:31 ` Hans Holmberg [this message]
2018-08-29 12:31 ` [PATCH 3/4] lightnvm: pblk: add trace events for pblk state changes Hans Holmberg
2018-08-29 12:31 ` [PATCH 4/4] lightnvm: pblk: add tracing for chunk resets Hans Holmberg
2018-08-29 20:09 ` Javier Gonzalez
2018-09-04 10:39 ` Hans Holmberg
2018-08-29 14:22 ` [PATCH 0/4] Introduce trace events for pblk Matias Bjørling
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