From 366f7e7a79b19bd8c4e8f55fdf12b81538d1a7a4 Mon Sep 17 00:00:00 2001 From: "Luck, Tony" Date: Fri, 18 Mar 2011 15:33:43 -0700 Subject: pstore: use mount option instead sysfs to tweak kmsg_bytes /sys/fs is a somewhat strange way to tweak what could more obviously be tuned with a mount option. Suggested-by: Christoph Hellwig Signed-off-by: Tony Luck Signed-off-by: Linus Torvalds --- Documentation/ABI/testing/pstore | 12 +++++++++--- Documentation/ABI/testing/sysfs-fs-pstore | 7 ------- 2 files changed, 9 insertions(+), 10 deletions(-) delete mode 100644 Documentation/ABI/testing/sysfs-fs-pstore (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/pstore b/Documentation/ABI/testing/pstore index f1fb2a004264..ddf451ee2a08 100644 --- a/Documentation/ABI/testing/pstore +++ b/Documentation/ABI/testing/pstore @@ -1,6 +1,6 @@ Where: /dev/pstore/... -Date: January 2011 -Kernel Version: 2.6.38 +Date: March 2011 +Kernel Version: 2.6.39 Contact: tony.luck@intel.com Description: Generic interface to platform dependent persistent storage. @@ -11,7 +11,7 @@ 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 - /dev/pstore + # mount -t pstore -o kmsg_bytes=8000 - /dev/pstore $ ls -l /dev/pstore total 0 @@ -33,3 +33,9 @@ Description: Generic interface to platform dependent persistent storage. will be saved elsewhere and erased from persistent store soon after boot to free up space ready for the next catastrophe. + + The 'kmsg_bytes' mount option changes the target amount of + data saved on each oops/panic. Pstore saves (possibly + multiple) files based on the record size of the underlying + persistent storage until at least this amount is reached. + Default is 10 Kbytes. diff --git a/Documentation/ABI/testing/sysfs-fs-pstore b/Documentation/ABI/testing/sysfs-fs-pstore deleted file mode 100644 index 8e659d854805..000000000000 --- a/Documentation/ABI/testing/sysfs-fs-pstore +++ /dev/null @@ -1,7 +0,0 @@ -What: /sys/fs/pstore/kmsg_bytes -Date: January 2011 -Kernel Version: 2.6.38 -Contact: "Tony Luck" -Description: - Controls amount of console log that will be saved - to persistent store on oops/panic. -- cgit v1.2.3-59-g8ed1b