Hi all, This is a pair of patches to jbd2 that fix some problems that have been found when journal checksumming is enabled. Patch 1 fixes a longstanding bug -- journal recovery goes into an infinite loop when a non-revoked journal block fails its metadata checksum test. Instead, keep replaying the journal and proceed to the e2fsck. Patch 2 introduces journal_csum v3 to fix numerous journal block tag size handling bugs. The test of 64bitness should not rely on guessing the tag size when it could simply query the feature flags. Furthermore, the journal_csum v2 structure had memory access alignment issues. Just replace this all with a 16-byte tag with everything in it; the overhead for checksums is no more than 0.1%. Patches are against 3.16, and have been xfstest'd and checked against debugfs creating test journals (see e2fsprogs patchbomb 5.1 later tonight). Comments and questions are, as always, welcome. --D -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
