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| author | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 03:29:33 +0200 |
|---|---|---|
| committer | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 03:29:33 +0200 |
| commit | 15dfd0df63ce6847081d09b2bbd567cc0cc4eae1 (patch) | |
| tree | 3b73f24fcef970bfcace3cbb297cfa57f3994682 /Documentation/fault-injection/fault-injection.txt | |
| parent | 328aa7a45af61bc0060c80847daa67fef7b9c0d0 (diff) | |
| parent | 0149138c4142da287d23f9d5c6038f7fb5e30ac2 (diff) | |
| download | kernel_samsung_smdk4412-15dfd0df63ce6847081d09b2bbd567cc0cc4eae1.zip kernel_samsung_smdk4412-15dfd0df63ce6847081d09b2bbd567cc0cc4eae1.tar.gz kernel_samsung_smdk4412-15dfd0df63ce6847081d09b2bbd567cc0cc4eae1.tar.bz2 | |
initial merge with 3.2.72
Diffstat (limited to 'Documentation/fault-injection/fault-injection.txt')
| -rw-r--r-- | Documentation/fault-injection/fault-injection.txt | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt index 7be15e4..ba4be8b 100644 --- a/Documentation/fault-injection/fault-injection.txt +++ b/Documentation/fault-injection/fault-injection.txt @@ -21,6 +21,11 @@ o fail_make_request /sys/block/<device>/make-it-fail or /sys/block/<device>/<partition>/make-it-fail. (generic_make_request()) +o fail_mmc_request + + injects MMC data errors on devices permitted by setting + debugfs entries under /sys/kernel/debug/mmc0/fail_mmc_request + Configure fault-injection capabilities behavior ----------------------------------------------- @@ -115,7 +120,8 @@ use the boot option: failslab= fail_page_alloc= - fail_make_request=<interval>,<probability>,<space>,<times> + fail_make_request= + mmc_core.fail_request=<interval>,<probability>,<space>,<times> How to add new fault injection capability ----------------------------------------- @@ -143,8 +149,7 @@ o provide a way to configure fault attributes failslab, fail_page_alloc, and fail_make_request use this way. Helper functions: - init_fault_attr_dentries(entries, attr, name); - void cleanup_fault_attr_dentries(entries); + fault_create_debugfs_attr(name, parent, attr); - module parameters |