Messages in this thread |  | | Subject | Re: [PATCH v2 0/3] Rework write error handling in pblk | From | Matias Bjørling <> | Date | Mon, 7 May 2018 15:05:38 +0200 |
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On 04/24/2018 07:45 AM, Hans Holmberg wrote: > From: Hans Holmberg <hans.holmberg@cnexlabs.com> > > This patch series fixes the(currently incomplete) write error handling > in pblk by: > > * queuing and re-submitting failed writes in the write buffer > * evacuating valid data data in lines with write failures, so the > chunk(s) with write failures can be reset to a known state by the fw > > Lines with failures in smeta are put back on the free list. > Failed chunks will be reset on the next use. > > If a write failes in emeta, the lba list is cached so the line can be > garbage collected without scanning the out-of-band area. > > Changes in V2: > - Added the recov_writes counter increase to the new path > - Moved lba list emeta reading during gc to a separate function > - Allocating the saved lba list with pblk_malloc instead of kmalloc > - Fixed formatting issues > - Removed dead code > > Hans Holmberg (3): > lightnvm: pblk: rework write error recovery path > lightnvm: pblk: garbage collect lines with failed writes > lightnvm: pblk: fix smeta write error path > > drivers/lightnvm/pblk-core.c | 52 +++++++- > drivers/lightnvm/pblk-gc.c | 102 +++++++++------ > drivers/lightnvm/pblk-init.c | 47 ++++--- > drivers/lightnvm/pblk-rb.c | 39 ------ > drivers/lightnvm/pblk-recovery.c | 91 ------------- > drivers/lightnvm/pblk-rl.c | 29 ++++- > drivers/lightnvm/pblk-sysfs.c | 15 ++- > drivers/lightnvm/pblk-write.c | 269 ++++++++++++++++++++++++++------------- > drivers/lightnvm/pblk.h | 36 ++++-- > 9 files changed, 384 insertions(+), 296 deletions(-) >
Applied for 4.18.
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