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| author | Ran Hongyun <ranhongyun1@huawei.com> | 2026-07-23 10:02:33 +0800 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2026-08-12 00:08:54 +0200 |
| commit | a5e0055eac837a1168c781653943d4a0d9920af3 (patch) | |
| tree | 363e19fc39d425e64701ebd040f5adfdad935c70 /scripts/const_structs.checkpatch | |
| parent | ff7937d14f5333ec7e6fb50d00a152d7974f4105 (diff) | |
| download | linux-a5e0055eac837a1168c781653943d4a0d9920af3.tar.gz linux-a5e0055eac837a1168c781653943d4a0d9920af3.zip | |
UBI: support per-device wear-leveling threshold
The UBI wear-leveling threshold (CONFIG_MTD_UBI_WL_THRESHOLD) is
currently a compile-time constant shared by all UBI devices. When a
single kernel image must support multiple NAND flashes with different
erase lifetimes, one global threshold cannot suit all devices.
Add a per-device configurable wl_threshold parameter:
- UAPI: add __s32 wl_threshold to struct ubi_attach_req, carved
from the existing padding.
- Module parameter: ubi.mtd gains a new optional token
"wl_threshold":
ubi.mtd=0,0,0,0,0,0,256 ubi.mtd=1,0,0,0,0,0,4096
0 means "use the kernel default", the accepted range is
2-65536.
Signed-off-by: Ran Hongyun <ranhongyun1@huawei.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'scripts/const_structs.checkpatch')
0 files changed, 0 insertions, 0 deletions