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authorJosh Boyer <jwboyer@redhat.com>2013-02-13 01:07:22 +0400
committerTony Luck <tony.luck@intel.com>2013-02-13 01:07:22 +0400
commitfb0af3f2b1b613e5ea75426d454c7e5b1d1eef49 (patch)
tree2ef5fd07b1684073d1b0d2fea0466e38466f92a8 /Documentation
parenta93bc0c6e07ed9bac44700280e65e2945d864fd4 (diff)
downloadlinux-fb0af3f2b1b613e5ea75426d454c7e5b1d1eef49.tar.xz
pstore: Create a convenient mount point for pstore
Using /dev/pstore as a mount point for the pstore filesystem is slightly awkward. We don't normally mount filesystems in /dev/ and the /dev/pstore file isn't created automatically by anything. While this method will still work, we can create a persistent mount point in sysfs. This will put pstore on par with things like cgroups and efivarfs. Signed-off-by: Josh Boyer <jwboyer@redhat.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/pstore10
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/ABI/testing/pstore b/Documentation/ABI/testing/pstore
index ff1df4e3b059..5fca9f5e10a3 100644
--- a/Documentation/ABI/testing/pstore
+++ b/Documentation/ABI/testing/pstore
@@ -1,4 +1,4 @@
-Where: /dev/pstore/...
+Where: /sys/fs/pstore/... (or /dev/pstore/...)
Date: March 2011
Kernel Version: 2.6.39
Contact: tony.luck@intel.com
@@ -11,9 +11,9 @@ Description: Generic interface to platform dependent persistent storage.
of the console log is captured, but other interesting
data can also be saved.
- # mount -t pstore -o kmsg_bytes=8000 - /dev/pstore
+ # mount -t pstore -o kmsg_bytes=8000 - /sys/fs/pstore
- $ ls -l /dev/pstore
+ $ ls -l /sys/fs/pstore/
total 0
-r--r--r-- 1 root root 7896 Nov 30 15:38 dmesg-erst-1
@@ -27,9 +27,9 @@ Description: Generic interface to platform dependent persistent storage.
the file will signal to the underlying persistent storage
device that it can reclaim the space for later re-use.
- $ rm /dev/pstore/dmesg-erst-1
+ $ rm /sys/fs/pstore/dmesg-erst-1
- The expectation is that all files in /dev/pstore
+ The expectation is that all files in /sys/fs/pstore/
will be saved elsewhere and erased from persistent store
soon after boot to free up space ready for the next
catastrophe.