linux/drivers/mtd/ubi
Sebastian Siewior 34b89df903 mtd: ubi: wl: avoid erasing a PEB which is empty
wear_leveling_worker() currently unconditionally puts a PEB on erase in
the error case even it just been taken from the free_list and never
used.
In case the PEB was never used it can be put back on the free list
saving a precious erase cycle.

v1…v2:
	- to_leb_clean -> dst_leb_clean
	- use the nested option for ensure_wear_leveling()
	- do_sync_erase() can't go -ENOMEM so we can just go into
	  RO-mode now.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
2016-01-10 12:33:11 +01:00
..
attach.c UBI: drop null test before destroy functions 2015-10-03 20:36:10 +02:00
block.c Minor merge needed, due to function move. 2015-07-01 10:49:25 -07:00
build.c UBI: Use static class and attribute groups 2015-06-02 13:16:25 +02:00
cdev.c UBI: Remove in vain semicolon 2015-11-06 23:26:51 +01:00
debug.c UBI: fix return error code 2015-12-16 22:45:04 +01:00
debug.h UBI: power cut emulation for testing 2015-04-13 21:05:17 +02:00
eba.c UBI: Fix debug message 2015-10-03 20:09:55 +02:00
fastmap-wl.c ubi: fastmap: Implement produce_free_peb() 2015-10-03 23:25:30 +02:00
fastmap.c UBI: Fastmap: Fix PEB array type 2015-11-06 23:26:50 +01:00
gluebi.c UBI: Update comments to reflect UBI_METAONLY flag 2015-10-03 20:11:59 +02:00
io.c UBI: fix use of "VID" vs. "EC" in header self-check 2015-12-16 22:46:26 +01:00
kapi.c VFS: assorted d_backing_inode() annotations 2015-04-15 15:06:59 -04:00
Kconfig UBI: block: Add CONFIG_BLOCK dependency 2014-03-04 14:49:53 +02:00
Makefile UBI: R/O block driver on top of UBI volumes 2014-02-28 16:29:48 +02:00
misc.c UBI: fix soft lockup in ubi_check_volume() 2015-01-28 16:18:09 +01:00
ubi-media.h UBI: Fix typo in comment 2015-10-03 20:09:41 +02:00
ubi.h UBI: Use static class and attribute groups 2015-06-02 13:16:25 +02:00
upd.c UBI: Fix invalid vfree() 2014-11-07 15:14:09 +02:00
vmt.c UBI: Use static class and attribute groups 2015-06-02 13:16:25 +02:00
vtbl.c UBI: return ENOSPC if no enough space available 2015-09-29 12:47:05 +02:00
wl.c mtd: ubi: wl: avoid erasing a PEB which is empty 2016-01-10 12:33:11 +01:00
wl.h UBI: Fastmap: Remove is_fm_block() 2015-03-26 22:47:38 +01:00