Hi all, This is v2 of the tail overwrite detection series. Patches 1-4 include mostly minor changes to fix up some error handling issues and whatnot. Patch 5 is new and updates both of the torn write and tail overwrite detection mechanisms to handle corruption errors along with crc mismatch errors. Patch 6 is also new and a trivial introduction of a tracepoint. This has survived a decent amount of testing to this point with various block sizes, logbsize values, and feature settings (debug on/off, crc on/off, reflink on/off) on a couple different arches (x86-64, ppc64). Thoughts, reviews, flames appreciated. Brian v2: - Fix 64-bit division. - Fix up error checking in xlog_verify_[head|tail]() to only move tail tail on corruption and otherwise fail mount immediately. - Added patch 5 to handle -EFSCORRUPTED on head/tail verification. - Added patch 6 to introduce log head/tail tracepoint. v1: http://www.spinics.net/lists/linux-xfs/msg07974.html - Add patch to fix log recovery header wrapping problem. - Replace transaction reservation rfc with log recovery based fix. - Replace custom log pinning sysfs knob with error injection tag. rfc: http://www.spinics.net/lists/linux-xfs/msg07623.html Brian Foster (6): xfs: fix recovery failure when log record header wraps log end xfs: always verify the log tail during recovery xfs: fix log recovery corruption error due to tail overwrite xfs: add log item pinning error injection tag xfs: handle -EFSCORRUPTED during head/tail verification xfs: add log recovery tracepoint for head/tail fs/xfs/xfs_error.c | 3 + fs/xfs/xfs_error.h | 4 +- fs/xfs/xfs_log_recover.c | 157 +++++++++++++++++++++++++++++------------------ fs/xfs/xfs_trace.h | 18 ++++++ fs/xfs/xfs_trans_ail.c | 17 ++++- 5 files changed, 137 insertions(+), 62 deletions(-) -- 2.9.4 -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
