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lightnvm: move NVM_DEBUG to pblk

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There is no users of CONFIG_NVM_DEBUG in the LightNVM subsystem. All
users are in pblk. Rename NVM_DEBUG to NVM_PBLK_DEBUG and enable
only for pblk.

Also fix up the CONFIG_NVM_PBLK entry to follow the code style for
Kconfig files.

Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Reviewed-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Matias Bjørling 2018-07-13 10:48:37 +02:00 committed by Jens Axboe
parent ffc03fb7a5
commit 880eda5440
10 changed files with 73 additions and 71 deletions
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32
drivers/lightnvm/Kconfig
View File

@ -17,23 +17,25 @@ menuconfig NVM
if NVM
config NVM_DEBUG
bool "Open-Channel SSD debugging support"
default n
---help---
Exposes a debug management interface to create/remove targets at:
/sys/module/lnvm/parameters/configure_debug
It is required to create/remove targets without IOCTLs.
config NVM_PBLK
tristate "Physical Block Device Open-Channel SSD target"
---help---
Allows an open-channel SSD to be exposed as a block device to the
host. The target assumes the device exposes raw flash and must be
explicitly managed by the host.
help
Allows an open-channel SSD to be exposed as a block device to the
host. The target assumes the device exposes raw flash and must be
explicitly managed by the host.
Please note the disk format is considered EXPERIMENTAL for now.
Please note the disk format is considered EXPERIMENTAL for now.
if NVM_PBLK
config NVM_PBLK_DEBUG
bool "PBlk Debug Support"
default n
help
Enables debug support for pblk. This includes extra checks, more
vocal error messages, and extra tracking fields in the pblk sysfs
entries.
endif # NVM_PBLK_DEBUG
endif # NVM

4
drivers/lightnvm/pblk-cache.c
View File

@ -67,7 +67,7 @@ retry:
atomic64_add(nr_entries, &pblk->user_wa);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_add(nr_entries, &pblk->inflight_writes);
atomic_long_add(nr_entries, &pblk->req_writes);
#endif
@ -123,7 +123,7 @@ retry:
atomic64_add(valid_entries, &pblk->gc_wa);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_add(valid_entries, &pblk->inflight_writes);
atomic_long_add(valid_entries, &pblk->recov_gc_writes);
#endif

26
drivers/lightnvm/pblk-core.c
View File

@ -194,7 +194,7 @@ void pblk_map_invalidate(struct pblk *pblk, struct ppa_addr ppa)
u64 paddr;
int line_id;
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
/* Callers must ensure that the ppa points to a device address */
BUG_ON(pblk_addr_in_cache(ppa));
BUG_ON(pblk_ppa_empty(ppa));
@ -430,7 +430,7 @@ void pblk_discard(struct pblk *pblk, struct bio *bio)
void pblk_log_write_err(struct pblk *pblk, struct nvm_rq *rqd)
{
atomic_long_inc(&pblk->write_failed);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
pblk_print_failed_rqd(pblk, rqd, rqd->error);
#endif
}
@ -454,7 +454,7 @@ void pblk_log_read_err(struct pblk *pblk, struct nvm_rq *rqd)
default:
pr_err("pblk: unknown read error:%d\n", rqd->error);
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
pblk_print_failed_rqd(pblk, rqd, rqd->error);
#endif
}
@ -470,7 +470,7 @@ int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd)
atomic_inc(&pblk->inflight_io);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
if (pblk_check_io(pblk, rqd))
return NVM_IO_ERR;
#endif
@ -484,7 +484,7 @@ int pblk_submit_io_sync(struct pblk *pblk, struct nvm_rq *rqd)
atomic_inc(&pblk->inflight_io);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
if (pblk_check_io(pblk, rqd))
return NVM_IO_ERR;
#endif
@ -1726,7 +1726,7 @@ void pblk_line_close(struct pblk *pblk, struct pblk_line *line)
struct list_head *move_list;
int i;
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
WARN(!bitmap_full(line->map_bitmap, lm->sec_per_line),
"pblk: corrupt closed line %d\n", line->id);
#endif
@ -1856,7 +1856,7 @@ static void __pblk_down_page(struct pblk *pblk, struct ppa_addr *ppa_list,
* Only send one inflight I/O per LUN. Since we map at a page
* granurality, all ppas in the I/O will map to the same LUN
*/
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
int i;
for (i = 1; i < nr_ppas; i++)
@ -1901,7 +1901,7 @@ void pblk_up_page(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas)
struct pblk_lun *rlun;
int pos = pblk_ppa_to_pos(geo, ppa_list[0]);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
int i;
for (i = 1; i < nr_ppas; i++)
@ -1951,7 +1951,7 @@ void pblk_update_map(struct pblk *pblk, sector_t lba, struct ppa_addr ppa)
void pblk_update_map_cache(struct pblk *pblk, sector_t lba, struct ppa_addr ppa)
{
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
/* Callers must ensure that the ppa points to a cache address */
BUG_ON(!pblk_addr_in_cache(ppa));
BUG_ON(pblk_rb_pos_oob(&pblk->rwb, pblk_addr_to_cacheline(ppa)));
@ -1966,7 +1966,7 @@ int pblk_update_map_gc(struct pblk *pblk, sector_t lba, struct ppa_addr ppa_new,
struct ppa_addr ppa_l2p, ppa_gc;
int ret = 1;
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
/* Callers must ensure that the ppa points to a cache address */
BUG_ON(!pblk_addr_in_cache(ppa_new));
BUG_ON(pblk_rb_pos_oob(&pblk->rwb, pblk_addr_to_cacheline(ppa_new)));
@ -2003,14 +2003,14 @@ void pblk_update_map_dev(struct pblk *pblk, sector_t lba,
{
struct ppa_addr ppa_l2p;
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
/* Callers must ensure that the ppa points to a device address */
BUG_ON(pblk_addr_in_cache(ppa_mapped));
#endif
/* Invalidate and discard padded entries */
if (lba == ADDR_EMPTY) {
atomic64_inc(&pblk->pad_wa);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_inc(&pblk->padded_wb);
#endif
if (!pblk_ppa_empty(ppa_mapped))
@ -2036,7 +2036,7 @@ void pblk_update_map_dev(struct pblk *pblk, sector_t lba,
goto out;
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
WARN_ON(!pblk_addr_in_cache(ppa_l2p) && !pblk_ppa_empty(ppa_l2p));
#endif

2
drivers/lightnvm/pblk-gc.c
View File

@ -522,7 +522,7 @@ static int pblk_gc_reader_ts(void *data)
io_schedule();
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
pr_info("pblk: flushing gc pipeline, %d lines left\n",
atomic_read(&gc->pipeline_gc));
#endif

8
drivers/lightnvm/pblk-init.c
View File

@ -91,7 +91,7 @@ static size_t pblk_trans_map_size(struct pblk *pblk)
return entry_size * pblk->rl.nr_secs;
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
static u32 pblk_l2p_crc(struct pblk *pblk)
{
size_t map_size;
@ -122,7 +122,7 @@ static int pblk_l2p_recover(struct pblk *pblk, bool factory_init)
}
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
pr_info("pblk init: L2P CRC: %x\n", pblk_l2p_crc(pblk));
#endif
@ -1166,7 +1166,7 @@ static void pblk_exit(void *private, bool graceful)
pblk_gc_exit(pblk, graceful);
pblk_tear_down(pblk, graceful);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
pr_info("pblk exit: L2P CRC: %x\n", pblk_l2p_crc(pblk));
#endif
@ -1217,7 +1217,7 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
spin_lock_init(&pblk->trans_lock);
spin_lock_init(&pblk->lock);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_set(&pblk->inflight_writes, 0);
atomic_long_set(&pblk->padded_writes, 0);
atomic_long_set(&pblk->padded_wb, 0);

16
drivers/lightnvm/pblk-rb.c
View File

@ -111,7 +111,7 @@ int pblk_rb_init(struct pblk_rb *rb, struct pblk_rb_entry *rb_entry_base,
} while (iter > 0);
up_write(&pblk_rb_lock);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_set(&rb->inflight_flush_point, 0);
#endif
@ -308,7 +308,7 @@ void pblk_rb_write_entry_user(struct pblk_rb *rb, void *data,
entry = &rb->entries[ring_pos];
flags = READ_ONCE(entry->w_ctx.flags);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
/* Caller must guarantee that the entry is free */
BUG_ON(!(flags & PBLK_WRITABLE_ENTRY));
#endif
@ -332,7 +332,7 @@ void pblk_rb_write_entry_gc(struct pblk_rb *rb, void *data,
entry = &rb->entries[ring_pos];
flags = READ_ONCE(entry->w_ctx.flags);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
/* Caller must guarantee that the entry is free */
BUG_ON(!(flags & PBLK_WRITABLE_ENTRY));
#endif
@ -362,7 +362,7 @@ static int pblk_rb_flush_point_set(struct pblk_rb *rb, struct bio *bio,
return 0;
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_inc(&rb->inflight_flush_point);
#endif
@ -588,7 +588,7 @@ try:
atomic64_add(pad, &pblk->pad_wa);
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_add(pad, &pblk->padded_writes);
#endif
@ -613,7 +613,7 @@ int pblk_rb_copy_to_bio(struct pblk_rb *rb, struct bio *bio, sector_t lba,
int ret = 1;
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
/* Caller must ensure that the access will not cause an overflow */
BUG_ON(pos >= rb->nr_entries);
#endif
@ -820,7 +820,7 @@ ssize_t pblk_rb_sysfs(struct pblk_rb *rb, char *buf)
rb->subm,
rb->sync,
rb->l2p_update,
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_read(&rb->inflight_flush_point),
#else
0,
@ -838,7 +838,7 @@ ssize_t pblk_rb_sysfs(struct pblk_rb *rb, char *buf)
rb->subm,
rb->sync,
rb->l2p_update,
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_read(&rb->inflight_flush_point),
#else
0,

28
drivers/lightnvm/pblk-read.c
View File

@ -28,7 +28,7 @@ static int pblk_read_from_cache(struct pblk *pblk, struct bio *bio,
sector_t lba, struct ppa_addr ppa,
int bio_iter, bool advanced_bio)
{
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
/* Callers must ensure that the ppa points to a cache address */
BUG_ON(pblk_ppa_empty(ppa));
BUG_ON(!pblk_addr_in_cache(ppa));
@ -79,7 +79,7 @@ retry:
WARN_ON(test_and_set_bit(i, read_bitmap));
meta_list[i].lba = cpu_to_le64(lba);
advanced_bio = true;
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_inc(&pblk->cache_reads);
#endif
} else {
@ -97,7 +97,7 @@ next:
else
rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_RANDOM);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_add(nr_secs, &pblk->inflight_reads);
#endif
}
@ -117,7 +117,7 @@ static void pblk_read_check_seq(struct pblk *pblk, struct nvm_rq *rqd,
continue;
if (lba != blba + i) {
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
struct ppa_addr *p;
p = (nr_lbas == 1) ? &rqd->ppa_list[i] : &rqd->ppa_addr;
@ -149,7 +149,7 @@ static void pblk_read_check_rand(struct pblk *pblk, struct nvm_rq *rqd,
meta_lba = le64_to_cpu(meta_lba_list[j].lba);
if (lba != meta_lba) {
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
struct ppa_addr *p;
int nr_ppas = rqd->nr_ppas;
@ -185,7 +185,7 @@ static void pblk_read_put_rqd_kref(struct pblk *pblk, struct nvm_rq *rqd)
static void pblk_end_user_read(struct bio *bio)
{
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
WARN_ONCE(bio->bi_status, "pblk: corrupted read bio\n");
#endif
bio_endio(bio);
@ -212,7 +212,7 @@ static void __pblk_end_io_read(struct pblk *pblk, struct nvm_rq *rqd,
if (put_line)
pblk_read_put_rqd_kref(pblk, rqd);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_add(rqd->nr_ppas, &pblk->sync_reads);
atomic_long_sub(rqd->nr_ppas, &pblk->inflight_reads);
#endif
@ -285,7 +285,7 @@ static int pblk_partial_read(struct pblk *pblk, struct nvm_rq *rqd,
if (rqd->error) {
atomic_long_inc(&pblk->read_failed);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
pblk_print_failed_rqd(pblk, rqd, rqd->error);
#endif
}
@ -359,7 +359,7 @@ static void pblk_read_rq(struct pblk *pblk, struct nvm_rq *rqd, struct bio *bio,
pblk_lookup_l2p_seq(pblk, &ppa, lba, 1);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_inc(&pblk->inflight_reads);
#endif
@ -382,7 +382,7 @@ retry:
WARN_ON(test_and_set_bit(0, read_bitmap));
meta_list[0].lba = cpu_to_le64(lba);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_inc(&pblk->cache_reads);
#endif
} else {
@ -514,7 +514,7 @@ static int read_ppalist_rq_gc(struct pblk *pblk, struct nvm_rq *rqd,
rqd->ppa_list[valid_secs++] = ppa_list_l2p[i];
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_add(valid_secs, &pblk->inflight_reads);
#endif
@ -548,7 +548,7 @@ static int read_rq_gc(struct pblk *pblk, struct nvm_rq *rqd,
rqd->ppa_addr = ppa_l2p;
valid_secs = 1;
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_inc(&pblk->inflight_reads);
#endif
@ -619,12 +619,12 @@ int pblk_submit_read_gc(struct pblk *pblk, struct pblk_gc_rq *gc_rq)
if (rqd.error) {
atomic_long_inc(&pblk->read_failed_gc);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
pblk_print_failed_rqd(pblk, &rqd, rqd.error);
#endif
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_add(gc_rq->secs_to_gc, &pblk->sync_reads);
atomic_long_add(gc_rq->secs_to_gc, &pblk->recov_gc_reads);
atomic_long_sub(gc_rq->secs_to_gc, &pblk->inflight_reads);

8
drivers/lightnvm/pblk-sysfs.c
View File

@ -421,7 +421,7 @@ static ssize_t pblk_sysfs_get_padding_dist(struct pblk *pblk, char *page)
return sz;
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
static ssize_t pblk_sysfs_stats_debug(struct pblk *pblk, char *page)
{
return snprintf(page, PAGE_SIZE,
@ -598,7 +598,7 @@ static struct attribute sys_padding_dist = {
.mode = 0644,
};
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
static struct attribute sys_stats_debug_attr = {
.name = "stats",
.mode = 0444,
@ -619,7 +619,7 @@ static struct attribute *pblk_attrs[] = {
&sys_write_amp_mileage,
&sys_write_amp_trip,
&sys_padding_dist,
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
&sys_stats_debug_attr,
#endif
NULL,
@ -654,7 +654,7 @@ static ssize_t pblk_sysfs_show(struct kobject *kobj, struct attribute *attr,
return pblk_sysfs_get_write_amp_trip(pblk, buf);
else if (strcmp(attr->name, "padding_dist") == 0)
return pblk_sysfs_get_padding_dist(pblk, buf);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
else if (strcmp(attr->name, "stats") == 0)
return pblk_sysfs_stats_debug(pblk, buf);
#endif

14
drivers/lightnvm/pblk-write.c
View File

@ -38,7 +38,7 @@ static unsigned long pblk_end_w_bio(struct pblk *pblk, struct nvm_rq *rqd,
/* Release flags on context. Protect from writes */
smp_store_release(&w_ctx->flags, flags);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_dec(&rwb->inflight_flush_point);
#endif
}
@ -51,7 +51,7 @@ static unsigned long pblk_end_w_bio(struct pblk *pblk, struct nvm_rq *rqd,
pblk_bio_free_pages(pblk, rqd->bio, c_ctx->nr_valid,
c_ctx->nr_padded);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_add(rqd->nr_ppas, &pblk->sync_writes);
#endif
@ -78,7 +78,7 @@ static void pblk_complete_write(struct pblk *pblk, struct nvm_rq *rqd,
unsigned long flags;
unsigned long pos;
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_sub(c_ctx->nr_valid, &pblk->inflight_writes);
#endif
@ -196,7 +196,7 @@ static void pblk_queue_resubmit(struct pblk *pblk, struct pblk_c_ctx *c_ctx)
list_add_tail(&r_ctx->list, &pblk->resubmit_list);
spin_unlock(&pblk->resubmit_lock);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_add(c_ctx->nr_valid, &pblk->recov_writes);
#endif
}
@ -258,7 +258,7 @@ static void pblk_end_io_write(struct nvm_rq *rqd)
pblk_end_w_fail(pblk, rqd);
return;
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
else
WARN_ONCE(rqd->bio->bi_status, "pblk: corrupted write error\n");
#endif
@ -356,7 +356,7 @@ static int pblk_calc_secs_to_sync(struct pblk *pblk, unsigned int secs_avail,
secs_to_sync = pblk_calc_secs(pblk, secs_avail, secs_to_flush);
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
if ((!secs_to_sync && secs_to_flush)
|| (secs_to_sync < 0)
|| (secs_to_sync > secs_avail && !secs_to_flush)) {
@ -640,7 +640,7 @@ static int pblk_submit_write(struct pblk *pblk)
if (pblk_submit_io_set(pblk, rqd))
goto fail_free_bio;
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_long_add(secs_to_sync, &pblk->sub_writes);
#endif

6
drivers/lightnvm/pblk.h
View File

@ -193,7 +193,7 @@ struct pblk_rb {
spinlock_t w_lock; /* Write lock */
spinlock_t s_lock; /* Sync lock */
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
atomic_t inflight_flush_point; /* Not served REQ_FLUSH | REQ_FUA */
#endif
};
@ -636,7 +636,7 @@ struct pblk {
u64 nr_flush_rst; /* Flushes reset value for pad dist.*/
atomic64_t nr_flush; /* Number of flush/fua I/O */
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
/* Non-persistent debug counters, 4kb sector I/Os */
atomic_long_t inflight_writes; /* Inflight writes (user and gc) */
atomic_long_t padded_writes; /* Sectors padded due to flush/fua */
@ -1279,7 +1279,7 @@ static inline int pblk_io_aligned(struct pblk *pblk, int nr_secs)
return !(nr_secs % pblk->min_write_pgs);
}
#ifdef CONFIG_NVM_DEBUG
#ifdef CONFIG_NVM_PBLK_DEBUG
static inline void print_ppa(struct nvm_geo *geo, struct ppa_addr *p,
char *msg, int error)
{