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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/acpi/apei
parenteaadcfeb31e959028dfa2cc48741e126e3e15b28 (diff)
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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/acpi/apei')
-rw-r--r--drivers/acpi/apei/erst.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 26311f2..cb1d557 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -942,6 +942,7 @@ static int erst_clearer(enum pstore_type_id type, u64 id, int count,
static struct pstore_info erst_info = {
.owner = THIS_MODULE,
.name = "erst",
+ .flags = PSTORE_FLAGS_FRAGILE,
.open = erst_open_pstore,
.close = erst_close_pstore,
.read = erst_reader,
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