diff options
Diffstat (limited to 'nixos/modules/kernel-patches/0050-kernel-disable-cfi-cmdset-0002-erase-suspend.patch')
| -rw-r--r-- | nixos/modules/kernel-patches/0050-kernel-disable-cfi-cmdset-0002-erase-suspend.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/nixos/modules/kernel-patches/0050-kernel-disable-cfi-cmdset-0002-erase-suspend.patch b/nixos/modules/kernel-patches/0050-kernel-disable-cfi-cmdset-0002-erase-suspend.patch new file mode 100644 index 0000000..f285a4d --- /dev/null +++ b/nixos/modules/kernel-patches/0050-kernel-disable-cfi-cmdset-0002-erase-suspend.patch @@ -0,0 +1,32 @@ +From 0b665a6c06dc23540d79f36704335d1063351f65 Mon Sep 17 00:00:00 2001 +From: Felix Fietkau <nbd@nbd.name> +Date: Tue, 27 Sep 2022 16:21:39 +0200 +Subject: [PATCH 50/96] 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(-) + +diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c +index 67453f59c69c..a6692d72f24b 100644 +--- a/drivers/mtd/chips/cfi_cmdset_0002.c ++++ b/drivers/mtd/chips/cfi_cmdset_0002.c +@@ -908,7 +908,7 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr + 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; +-- +2.37.2 + |