summaryrefslogtreecommitdiffstats
path: root/drivers/firmware
diff options
context:
space:
mode:
authorLuck, Tony <tony.luck@intel.com>2013-12-18 15:17:10 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-12-20 13:12:01 -0800
commitdf36ac1bc2a166eef90785d584e4cfed6f52bd32 (patch)
tree024eb6ee8e997889d9cd31ed97503a158ebf898b /drivers/firmware
parenteaadcfeb31e959028dfa2cc48741e126e3e15b28 (diff)
downloadop-kernel-dev-df36ac1bc2a166eef90785d584e4cfed6f52bd32.zip
op-kernel-dev-df36ac1bc2a166eef90785d584e4cfed6f52bd32.tar.gz
pstore: Don't allow high traffic options on fragile devices
Some pstore backing devices use on board flash as persistent storage. These have limited numbers of write cycles so it is a poor idea to use them from high frequency operations. Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/efi/efi-pstore.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
index 743fd42..4b9dc83 100644
--- a/drivers/firmware/efi/efi-pstore.c
+++ b/drivers/firmware/efi/efi-pstore.c
@@ -356,6 +356,7 @@ static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count,
static struct pstore_info efi_pstore_info = {
.owner = THIS_MODULE,
.name = "efi",
+ .flags = PSTORE_FLAGS_FRAGILE,
.open = efi_pstore_open,
.close = efi_pstore_close,
.read = efi_pstore_read,
OpenPOWER on IntegriCloud