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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-05-31 18:16:34 +0300
committerArtem Bityutskiy <dedekind1@gmail.com>2011-07-04 10:54:28 +0300
commit81e79d38df5a17bb1c738a14f8e5f3412fb33afa (patch)
tree88f88631a6e10ec9fd83261ceee195e283be57eb /Documentation/filesystems
parent8d7819b4af697eec45339cc24db7c3fe45fea0e7 (diff)
downloadop-kernel-dev-81e79d38df5a17bb1c738a14f8e5f3412fb33afa.zip
op-kernel-dev-81e79d38df5a17bb1c738a14f8e5f3412fb33afa.tar.gz
UBIFS: switch self-check knobs to debugfs
UBIFS has many built-in self-check functions which can be enabled using the debug_chks module parameter or the corresponding sysfs file (/sys/module/ubifs/parameters/debug_chks). However, this is not flexible enough because it is not per-filesystem. This patch moves this to debugfs interfaces. We already have debugfs support, so this patch just adds more debugfs files. While looking at debugfs support I've noticed that it is racy WRT file-system unmount, and added a TODO entry for that. This problem has been there for long time and it is quite standard debugfs PITA. The plan is to fix this later. This patch is simple, but it is large because it changes many places where we check if a particular type of checks is enabled or disabled. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/ubifs.txt26
1 files changed, 0 insertions, 26 deletions
diff --git a/Documentation/filesystems/ubifs.txt b/Documentation/filesystems/ubifs.txt
index 91ef076..a0a61d2 100644
--- a/Documentation/filesystems/ubifs.txt
+++ b/Documentation/filesystems/ubifs.txt
@@ -111,32 +111,6 @@ The following is an example of the kernel boot arguments to attach mtd0
to UBI and mount volume "rootfs":
ubi.mtd=0 root=ubi0:rootfs rootfstype=ubifs
-
-Module Parameters for Debugging
-===============================
-
-When UBIFS has been compiled with debugging enabled, there are 2 module
-parameters that are available to control aspects of testing and debugging.
-
-debug_chks Selects extra checks that UBIFS can do while running:
-
- Check Flag value
-
- General checks 1
- Check the index 2
- Check orphan area 8
- Check LEB properties (lprops) 32
- Check leaf nodes and inodes 64
-
-debug_tsts Selects a mode of testing, as follows:
-
- Test mode Flag value
-
- Failure mode for recovery testing 4
-
-For example, set debug_chks to 3 to enable general and TNC checks.
-
-
References
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