diff options
author | Hauke Mehrtens <hauke@hauke-m.de> | 2020-02-23 13:20:11 +0100 |
---|---|---|
committer | Koen Vandeputte <koen.vandeputte@ncentric.com> | 2020-02-28 17:50:45 +0100 |
commit | c16517d26de30c90dabce1e456615fd7fbdce07c (patch) | |
tree | e7371ee12a3c413a064885b634ee4c975ad7f96a /target/linux/generic/pending-5.4/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch | |
parent | 955634b473284847e3c8281a6ac85655329d8b06 (diff) | |
download | upstream-c16517d26de30c90dabce1e456615fd7fbdce07c.tar.gz upstream-c16517d26de30c90dabce1e456615fd7fbdce07c.tar.bz2 upstream-c16517d26de30c90dabce1e456615fd7fbdce07c.zip |
kernel: copy kernel 4.19 code to 5.4
No changes were done to the patches while coping them. Currently they do
not apply on top of kernel 5.4.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Diffstat (limited to 'target/linux/generic/pending-5.4/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch')
-rw-r--r-- | target/linux/generic/pending-5.4/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.4/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch b/target/linux/generic/pending-5.4/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch new file mode 100644 index 0000000000..88d386302a --- /dev/null +++ b/target/linux/generic/pending-5.4/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch @@ -0,0 +1,25 @@ +From: Felix Fietkau <nbd@nbd.name> +Subject: kernel: disable cfi cmdset 0002 erase suspend + +on some platforms, erase suspend leads to data corruption and lockups when write +ops collide with erase ops. this has been observed on the buffalo wzr-hp-g300nh. +rather than play whack-a-mole with a hard to reproduce issue on a variety of devices, +simply disable erase suspend, as it will usually not produce any useful gain on +the small filesystems used on embedded hardware. + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + drivers/mtd/chips/cfi_cmdset_0002.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/mtd/chips/cfi_cmdset_0002.c ++++ b/drivers/mtd/chips/cfi_cmdset_0002.c +@@ -812,7 +812,7 @@ static int get_chip(struct map_info *map + return 0; + + case FL_ERASING: +- if (!cfip || !(cfip->EraseSuspend & (0x1|0x2)) || ++ if (1 /* no suspend */ || !cfip || !(cfip->EraseSuspend & (0x1|0x2)) || + !(mode == FL_READY || mode == FL_POINT || + (mode == FL_WRITING && (cfip->EraseSuspend & 0x2)))) + goto sleep; |