From: Hans Holmberg <hans@owltronix.com>
To: Matias Bjorling <mb@lightnvm.io>
Cc: "Christoph Hellwig" <hch@lst.de>,
"Javier González" <javier@javigon.com>,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
"Hans Holmberg" <hans@owltronix.com>
Subject: [PATCH 3/4] lightnvm: pblk: use kvmalloc for metadata
Date: Wed, 31 Jul 2019 11:41:35 +0200 [thread overview]
Message-ID: <1564566096-28756-4-git-send-email-hans@owltronix.com> (raw)
In-Reply-To: <1564566096-28756-1-git-send-email-hans@owltronix.com>
There is no reason now not to use kvmalloc, so
so replace the internal metadata allocation scheme.
Signed-off-by: Hans Holmberg <hans@owltronix.com>
---
drivers/lightnvm/pblk-core.c | 3 +--
drivers/lightnvm/pblk-gc.c | 19 ++++++++-----------
drivers/lightnvm/pblk-init.c | 38 ++++++++++----------------------------
drivers/lightnvm/pblk.h | 23 -----------------------
4 files changed, 19 insertions(+), 64 deletions(-)
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index a58d3c84a3f2..b413bafe93fd 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -1839,8 +1839,7 @@ static void pblk_save_lba_list(struct pblk *pblk, struct pblk_line *line)
struct pblk_w_err_gc *w_err_gc = line->w_err_gc;
struct pblk_emeta *emeta = line->emeta;
- w_err_gc->lba_list = pblk_malloc(lba_list_size,
- l_mg->emeta_alloc_type, GFP_KERNEL);
+ w_err_gc->lba_list = kvmalloc(lba_list_size, GFP_KERNEL);
memcpy(w_err_gc->lba_list, emeta_to_lbas(pblk, emeta->buf),
lba_list_size);
}
diff --git a/drivers/lightnvm/pblk-gc.c b/drivers/lightnvm/pblk-gc.c
index 63ee205b41c4..2581eebcfc41 100644
--- a/drivers/lightnvm/pblk-gc.c
+++ b/drivers/lightnvm/pblk-gc.c
@@ -132,14 +132,12 @@ static __le64 *get_lba_list_from_emeta(struct pblk *pblk,
struct pblk_line *line)
{
struct line_emeta *emeta_buf;
- struct pblk_line_mgmt *l_mg = &pblk->l_mg;
struct pblk_line_meta *lm = &pblk->lm;
unsigned int lba_list_size = lm->emeta_len[2];
__le64 *lba_list;
int ret;
- emeta_buf = pblk_malloc(lm->emeta_len[0],
- l_mg->emeta_alloc_type, GFP_KERNEL);
+ emeta_buf = kvmalloc(lm->emeta_len[0], GFP_KERNEL);
if (!emeta_buf)
return NULL;
@@ -147,7 +145,7 @@ static __le64 *get_lba_list_from_emeta(struct pblk *pblk,
if (ret) {
pblk_err(pblk, "line %d read emeta failed (%d)\n",
line->id, ret);
- pblk_mfree(emeta_buf, l_mg->emeta_alloc_type);
+ kvfree(emeta_buf);
return NULL;
}
@@ -161,16 +159,16 @@ static __le64 *get_lba_list_from_emeta(struct pblk *pblk,
if (ret) {
pblk_err(pblk, "inconsistent emeta (line %d)\n",
line->id);
- pblk_mfree(emeta_buf, l_mg->emeta_alloc_type);
+ kvfree(emeta_buf);
return NULL;
}
- lba_list = pblk_malloc(lba_list_size,
- l_mg->emeta_alloc_type, GFP_KERNEL);
+ lba_list = kvmalloc(lba_list_size, GFP_KERNEL);
+
if (lba_list)
memcpy(lba_list, emeta_to_lbas(pblk, emeta_buf), lba_list_size);
- pblk_mfree(emeta_buf, l_mg->emeta_alloc_type);
+ kvfree(emeta_buf);
return lba_list;
}
@@ -181,7 +179,6 @@ static void pblk_gc_line_prepare_ws(struct work_struct *work)
ws);
struct pblk *pblk = line_ws->pblk;
struct pblk_line *line = line_ws->line;
- struct pblk_line_mgmt *l_mg = &pblk->l_mg;
struct pblk_line_meta *lm = &pblk->lm;
struct nvm_tgt_dev *dev = pblk->dev;
struct nvm_geo *geo = &dev->geo;
@@ -272,7 +269,7 @@ static void pblk_gc_line_prepare_ws(struct work_struct *work)
goto next_rq;
out:
- pblk_mfree(lba_list, l_mg->emeta_alloc_type);
+ kvfree(lba_list);
kfree(line_ws);
kfree(invalid_bitmap);
@@ -286,7 +283,7 @@ static void pblk_gc_line_prepare_ws(struct work_struct *work)
fail_free_gc_rq:
kfree(gc_rq);
fail_free_lba_list:
- pblk_mfree(lba_list, l_mg->emeta_alloc_type);
+ kvfree(lba_list);
fail_free_invalid_bitmap:
kfree(invalid_bitmap);
fail_free_ws:
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index b351c7f002de..9a967a2e83dd 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -543,7 +543,7 @@ static void pblk_line_mg_free(struct pblk *pblk)
for (i = 0; i < PBLK_DATA_LINES; i++) {
kfree(l_mg->sline_meta[i]);
- pblk_mfree(l_mg->eline_meta[i]->buf, l_mg->emeta_alloc_type);
+ kvfree(l_mg->eline_meta[i]->buf);
kfree(l_mg->eline_meta[i]);
}
@@ -560,7 +560,7 @@ static void pblk_line_meta_free(struct pblk_line_mgmt *l_mg,
kfree(line->erase_bitmap);
kfree(line->chks);
- pblk_mfree(w_err_gc->lba_list, l_mg->emeta_alloc_type);
+ kvfree(w_err_gc->lba_list);
kfree(w_err_gc);
}
@@ -890,29 +890,14 @@ static int pblk_line_mg_init(struct pblk *pblk)
if (!emeta)
goto fail_free_emeta;
- if (lm->emeta_len[0] > KMALLOC_MAX_CACHE_SIZE) {
- l_mg->emeta_alloc_type = PBLK_VMALLOC_META;
-
- emeta->buf = vmalloc(lm->emeta_len[0]);
- if (!emeta->buf) {
- kfree(emeta);
- goto fail_free_emeta;
- }
-
- emeta->nr_entries = lm->emeta_sec[0];
- l_mg->eline_meta[i] = emeta;
- } else {
- l_mg->emeta_alloc_type = PBLK_KMALLOC_META;
-
- emeta->buf = kmalloc(lm->emeta_len[0], GFP_KERNEL);
- if (!emeta->buf) {
- kfree(emeta);
- goto fail_free_emeta;
- }
-
- emeta->nr_entries = lm->emeta_sec[0];
- l_mg->eline_meta[i] = emeta;
+ emeta->buf = kvmalloc(lm->emeta_len[0], GFP_KERNEL);
+ if (!emeta->buf) {
+ kfree(emeta);
+ goto fail_free_emeta;
}
+
+ emeta->nr_entries = lm->emeta_sec[0];
+ l_mg->eline_meta[i] = emeta;
}
for (i = 0; i < l_mg->nr_lines; i++)
@@ -926,10 +911,7 @@ static int pblk_line_mg_init(struct pblk *pblk)
fail_free_emeta:
while (--i >= 0) {
- if (l_mg->emeta_alloc_type == PBLK_VMALLOC_META)
- vfree(l_mg->eline_meta[i]->buf);
- else
- kfree(l_mg->eline_meta[i]->buf);
+ kvfree(l_mg->eline_meta[i]->buf);
kfree(l_mg->eline_meta[i]);
}
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index d515d3409a74..86ffa875bfe1 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -482,11 +482,6 @@ struct pblk_line {
#define PBLK_DATA_LINES 4
enum {
- PBLK_KMALLOC_META = 1,
- PBLK_VMALLOC_META = 2,
-};
-
-enum {
PBLK_EMETA_TYPE_HEADER = 1, /* struct line_emeta first sector */
PBLK_EMETA_TYPE_LLBA = 2, /* lba list - type: __le64 */
PBLK_EMETA_TYPE_VSC = 3, /* vsc list - type: __le32 */
@@ -521,9 +516,6 @@ struct pblk_line_mgmt {
__le32 *vsc_list; /* Valid sector counts for all lines */
- /* Metadata allocation type: VMALLOC | KMALLOC */
- int emeta_alloc_type;
-
/* Pre-allocated metadata for data lines */
struct pblk_smeta *sline_meta[PBLK_DATA_LINES];
struct pblk_emeta *eline_meta[PBLK_DATA_LINES];
@@ -934,21 +926,6 @@ void pblk_rl_werr_line_out(struct pblk_rl *rl);
int pblk_sysfs_init(struct gendisk *tdisk);
void pblk_sysfs_exit(struct gendisk *tdisk);
-static inline void *pblk_malloc(size_t size, int type, gfp_t flags)
-{
- if (type == PBLK_KMALLOC_META)
- return kmalloc(size, flags);
- return vmalloc(size);
-}
-
-static inline void pblk_mfree(void *ptr, int type)
-{
- if (type == PBLK_KMALLOC_META)
- kfree(ptr);
- else
- vfree(ptr);
-}
-
static inline struct nvm_rq *nvm_rq_from_c_ctx(void *c_ctx)
{
return c_ctx - sizeof(struct nvm_rq);
--
2.7.4
next prev parent reply other threads:[~2019-07-31 9:42 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-31 9:41 [PATCH 0/4] lnvm/pblk mapping cleanups Hans Holmberg
2019-07-31 9:41 ` [PATCH 1/4] lightnvm: remove nvm_submit_io_sync_fn Hans Holmberg
2019-07-31 13:54 ` Javier González
2019-08-06 7:05 ` Christoph Hellwig
2019-07-31 9:41 ` [PATCH 2/4] lightnvm: move metadata mapping to lower level driver Hans Holmberg
2019-07-31 13:58 ` Javier González
2019-08-01 7:15 ` Hans Holmberg
2019-08-01 7:46 ` Javier González
2019-08-06 7:06 ` Christoph Hellwig
2019-07-31 9:41 ` Hans Holmberg [this message]
2019-07-31 14:00 ` [PATCH 3/4] lightnvm: pblk: use kvmalloc for metadata Javier González
2019-08-06 7:06 ` Christoph Hellwig
2019-07-31 9:41 ` [PATCH 4/4] block: stop exporting bio_map_kern Hans Holmberg
2019-07-31 17:13 ` Javier González
2019-08-06 7:07 ` Christoph Hellwig
2019-08-06 13:40 ` [PATCH 0/4] lnvm/pblk mapping cleanups Matias Bjørling
2019-08-06 14:16 ` Jens Axboe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1564566096-28756-4-git-send-email-hans@owltronix.com \
--to=hans@owltronix.com \
--cc=hch@lst.de \
--cc=javier@javigon.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mb@lightnvm.io \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).