Darrick J. Wong 38d5adf339 e2fsck/debugfs: fix descriptor block size handling errors with journal_csum ... It turns out that there are some serious problems with the on-disk format of journal checksum v2. The foremost is that the function to calculate descriptor tag size returns sizes that are too big. This causes alignment issues on some architectures and is compounded by the fact that some parts of jbd2 use the structure size (incorrectly) to determine the presence of a 64bit journal instead of checking the feature flags. These errors regrettably lead to the journal corruption reported by Mr. Reardon. Therefore, introduce journal checksum v3, which enlarges the descriptor block tag format to allow for full 32-bit checksums of journal blocks, fix the journal tag function to return the correct sizes, and fix the jbd2 recovery code to use feature flags to determine 64bitness. Add a few function helpers so we don't have to open-code quite so many pieces. Switching to a 16-byte block size was found to increase journal size overhead by a maximum of 0.1%, to convert a 32-bit journal with no checksumming to a 32-bit journal with checksum v3 enabled. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reported-by: TR Reardon <thomas_reardon@hotmail.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>		2014-09-11 12:40:54 -04:00
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e2p.h	libe2p: allow libe2p.h to be used in C++ programs	2014-02-07 17:25:28 -05:00
e2p.pc.in	Change pkg-config files so that both <et/com_err.h> and <com_err.h> work	2012-05-14 12:45:54 -04:00
feature.c	e2fsck/debugfs: fix descriptor block size handling errors with journal_csum	2014-09-11 12:40:54 -04:00
fgetflags.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
fgetversion.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
fsetflags.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
fsetversion.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
getflags.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
getversion.c	Fix gcc -Wall nits	2013-01-01 13:28:27 -05:00
hashstr.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
iod.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
ls.c	Merge branch 'maint' into next	2014-01-30 19:05:16 -05:00
Makefile.in	Merge branch 'maint' into next	2014-07-06 00:09:27 -04:00
mntopts.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
ostype.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
parse_num.c	e2p: Fix 's' handling in parse_num_blocks2()	2013-02-28 20:12:30 -05:00
pe.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
percent.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
pf.c	libe2p/libext2fs: add EXT4_INLINE_DATA_FL flag	2012-08-07 14:06:47 -04:00
ps.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
setflags.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
setversion.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00
uuid.c	Shorten compile commands run by the build system	2011-09-18 17:34:37 -04:00