diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-14 15:32:19 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-14 15:32:19 -0800 |
commit | e2c5923c349c1738fe8fda980874d93f6fb2e5b6 (patch) | |
tree | b97a90170c45211bcc437761653aa8016c34afcd /drivers/lightnvm/pblk-map.c | |
parent | abc36be236358162202e86ad88616ff95a755101 (diff) | |
parent | a04b5de5050ab8b891128eb2c47a0916fe8622e1 (diff) |
Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block
Pull core block layer updates from Jens Axboe:
"This is the main pull request for block storage for 4.15-rc1.
Nothing out of the ordinary in here, and no API changes or anything
like that. Just various new features for drivers, core changes, etc.
In particular, this pull request contains:
- A patch series from Bart, closing the whole on blk/scsi-mq queue
quescing.
- A series from Christoph, building towards hidden gendisks (for
multipath) and ability to move bio chains around.
- NVMe
- Support for native multipath for NVMe (Christoph).
- Userspace notifications for AENs (Keith).
- Command side-effects support (Keith).
- SGL support (Chaitanya Kulkarni)
- FC fixes and improvements (James Smart)
- Lots of fixes and tweaks (Various)
- bcache
- New maintainer (Michael Lyle)
- Writeback control improvements (Michael)
- Various fixes (Coly, Elena, Eric, Liang, et al)
- lightnvm updates, mostly centered around the pblk interface
(Javier, Hans, and Rakesh).
- Removal of unused bio/bvec kmap atomic interfaces (me, Christoph)
- Writeback series that fix the much discussed hundreds of millions
of sync-all units. This goes all the way, as discussed previously
(me).
- Fix for missing wakeup on writeback timer adjustments (Yafang
Shao).
- Fix laptop mode on blk-mq (me).
- {mq,name} tupple lookup for IO schedulers, allowing us to have
alias names. This means you can use 'deadline' on both !mq and on
mq (where it's called mq-deadline). (me).
- blktrace race fix, oopsing on sg load (me).
- blk-mq optimizations (me).
- Obscure waitqueue race fix for kyber (Omar).
- NBD fixes (Josef).
- Disable writeback throttling by default on bfq, like we do on cfq
(Luca Miccio).
- Series from Ming that enable us to treat flush requests on blk-mq
like any other request. This is a really nice cleanup.
- Series from Ming that improves merging on blk-mq with schedulers,
getting us closer to flipping the switch on scsi-mq again.
- BFQ updates (Paolo).
- blk-mq atomic flags memory ordering fixes (Peter Z).
- Loop cgroup support (Shaohua).
- Lots of minor fixes from lots of different folks, both for core and
driver code"
* 'for-4.15/block' of git://git.kernel.dk/linux-block: (294 commits)
nvme: fix visibility of "uuid" ns attribute
blk-mq: fixup some comment typos and lengths
ide: ide-atapi: fix compile error with defining macro DEBUG
blk-mq: improve tag waiting setup for non-shared tags
brd: remove unused brd_mutex
blk-mq: only run the hardware queue if IO is pending
block: avoid null pointer dereference on null disk
fs: guard_bio_eod() needs to consider partitions
xtensa/simdisk: fix compile error
nvme: expose subsys attribute to sysfs
nvme: create 'slaves' and 'holders' entries for hidden controllers
block: create 'slaves' and 'holders' entries for hidden gendisks
nvme: also expose the namespace identification sysfs files for mpath nodes
nvme: implement multipath access to nvme subsystems
nvme: track shared namespaces
nvme: introduce a nvme_ns_ids structure
nvme: track subsystems
block, nvme: Introduce blk_mq_req_flags_t
block, scsi: Make SCSI quiesce and resume work reliably
block: Add the QUEUE_FLAG_PREEMPT_ONLY request queue flag
...
Diffstat (limited to 'drivers/lightnvm/pblk-map.c')
-rw-r--r-- | drivers/lightnvm/pblk-map.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/drivers/lightnvm/pblk-map.c b/drivers/lightnvm/pblk-map.c index fddb924f6dde..6f3ecde2140f 100644 --- a/drivers/lightnvm/pblk-map.c +++ b/drivers/lightnvm/pblk-map.c @@ -25,16 +25,28 @@ static void pblk_map_page_data(struct pblk *pblk, unsigned int sentry, unsigned int valid_secs) { struct pblk_line *line = pblk_line_get_data(pblk); - struct pblk_emeta *emeta = line->emeta; + struct pblk_emeta *emeta; struct pblk_w_ctx *w_ctx; - __le64 *lba_list = emeta_to_lbas(pblk, emeta->buf); + __le64 *lba_list; u64 paddr; int nr_secs = pblk->min_write_pgs; int i; + if (pblk_line_is_full(line)) { + struct pblk_line *prev_line = line; + + line = pblk_line_replace_data(pblk); + pblk_line_close_meta(pblk, prev_line); + } + + emeta = line->emeta; + lba_list = emeta_to_lbas(pblk, emeta->buf); + paddr = pblk_alloc_page(pblk, line, nr_secs); for (i = 0; i < nr_secs; i++, paddr++) { + __le64 addr_empty = cpu_to_le64(ADDR_EMPTY); + /* ppa to be sent to the device */ ppa_list[i] = addr_to_gen_ppa(pblk, paddr, line->id); @@ -51,22 +63,14 @@ static void pblk_map_page_data(struct pblk *pblk, unsigned int sentry, w_ctx->ppa = ppa_list[i]; meta_list[i].lba = cpu_to_le64(w_ctx->lba); lba_list[paddr] = cpu_to_le64(w_ctx->lba); - line->nr_valid_lbas++; + if (lba_list[paddr] != addr_empty) + line->nr_valid_lbas++; } else { - __le64 addr_empty = cpu_to_le64(ADDR_EMPTY); - lba_list[paddr] = meta_list[i].lba = addr_empty; __pblk_map_invalidate(pblk, line, paddr); } } - if (pblk_line_is_full(line)) { - struct pblk_line *prev_line = line; - - pblk_line_replace_data(pblk); - pblk_line_close_meta(pblk, prev_line); - } - pblk_down_rq(pblk, ppa_list, nr_secs, lun_bitmap); } |