Add the ability to save a log of problems found by e2fsck in a log
file that can be specified via /etc/e2fsck.conf.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Previously, e2fsck would exit with a status code of 1 even though the
only changes that it made to the file system were various
optimziations and not fixing file system corruption. Since the man
page states that an exit status of 1 means "file system errors
corrupted", fix e2fsck to return an exit status of 0.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This throttles the output of a particular problem type, to avoid a
bottleneck caused by (for example) printing a large number of
characters over a rate-limited a serial console.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The boolean options "force_no" in the problems stanza of e2fsck.conf
allows a particular problem code be treated as if the user will answer
"no" to the question of whether a particular problem should be fixed
--- even if e2fsck is run with the -y option.
As an example use case, suppose a distribution had widely deployed a
version of the kernel where under some circumstances, the EOFBLOCKS_FL
flag would be left set even though it should not be left set, and a
customer had a workload which exercised the fencepost error all the
time, resulting in many large number of inodes that had EOFBLOCKS_FL
set erroneously. Enough, in fact, the e2fsck runs were taking too
long. (There was such a bug in the kernel, which was fixed by commit
58590b06d in 2.6.36).
Leaving EOFBLOCKS_FL set when it should not be isn't a huge deal, and
is certainly than having high availability timeout alerts going off
left and right. So in this case, the best fix might be to put the
following in /etc/e2fsck.conf:
[problems]
0x010060 = { # PR_1_EOFBLOCKS_FL_SET
force_no = true
no_ok = true
no_nomsg = true
}
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add the ability for the e2fsck configuration file to override the
behaviour of e2fsck when a particular filesystem problem is
encountered. This allows reconnecting an inode to lost+found to not
stop the boot sequence, if a system administrator really badly wants
this behaviour for some specialized reason, for example.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
pass1.c: Treat inodes with a low dtime (that were from a corrupted
orphan list) specially.
problem.c, problem.h: Add new problem codes PR_1_LOW_DTIME and
PR_1_ORPHAN_LIST_REFUGEES, and a new latch group, PR_LATCH_LOW_DTIME.
problemP.h: Expand the size of the problem flag to be an int instead
of a short. Expand space in the flag word which is reserved for
problem latch flags from 3 bits to 8 bits.
ChangeLog, expect.1, expect.2, image.gz, name:
f_badorphan: New test which verifies corrupted orphan list handling.
problem.c (fix_problem): Support a new flag, PR_PREEN_NO which means
the answer is assumed to be no in preen mode. This is now used in the
PR_1_SET_IMMUTABLE code, so that in preen mode we ignore these inodes
and just print a warning message.
pass4.c (e2fsck_pass4): If an inode is set in the inode_imagic_map
bitmap, don't check to see if it is disconnected from the inode tree
(because it almost certainly will be). Free inode_imagic_map at the
end of pass 4.
pass2.c (check_dir_block, check_filetype): If the FILETYPE feature is
set, check the directory entry's filetype information field, and
fix/set it if necessary. (e2fsck_pass2): Free the inode_reg_map
bitmap at the end of pass 2.
pass1.c (e2fsck_pass1, alloc_imagic_map): Allocate and fill in
information for inode_reg_map and inode_imagic_map, which indicates
which inodes are regular files and AFS inodes, respectively.
Since only the master superblock is written during a restart, force
that superblock to be used after a restart; otherwise changes to the
block group descriptors end up getting ignored.
problem.c, problemP.h: If e2fsck is run -n, make def_yn variable be 0
for "no". Add support for a new flag, PR_NO_NOMSG, which supresses
the problem message if e2fsck is run with the -n option.
problem.c, problem.h (PR_2_SET_FILETYPE, PR_2_BAD_FILETYPE): Add new
problem codes.
message.c (expand_dirent_expression): Add support for %dt which prints
the dirent type information.
e2fsck.c (e2fsck_reset_context): Free new bitmaps (inode_reg_map and
inode_imagic_map).
e2fsck.h (e2fsck_t): Add new inode_reg_map and inode_magic_map to the
context structure.
ChangeLog, nt_io.c:
nt_io.c: New file which supports I/O under Windows NT.
ChangeLog, gen_uuid_nt.c:
gen_uuid_nt.c: New file which creates a UUID under Windows NT.
Many files:
Add support for non-Unix compiles
pass1.c, pass2.c, pass3.c, pass4.c, pass5.c: Add calls to the progress
indicator function.
pass1.c (scan_callback): Add call to the progress feedback function
(if it exists).
super.c (check_super_block): Skip the device size check if the
get_device_size returns EXT2_EXT_UNIMPLEMENTED.
iscan.c (main): Don't use fatal_error() anymore.
pass1b.c, swapfs.c, badblocks.c: Set E2F_FLAG_ABORT instead of calling
fatal_error(0).
problem.c, pass3.c (PR_3_ROOT_NOT_DIR_ABORT,
PR_3_NO_ROOT_INODE_ABORT): New problem codes.
problem.c, pass2.c (PR_2_SPLIT_DOT): New problem code.
problem.c, pass1.c (PR_1_SUPPRESS_MESSAGES): New problem code.
problemP.h: New file which separates out the private fix_problem data
structures.
util.c, dirinfo.c, pass1.c, pass1b.c, pass2.c, pass5.c, super.c,
swapfs.c util.c: allocate_memory() now takes a e2fsck context as its
first argument, and rename it to be e2fsck_allocate_memory().
problemP.h:
New file which contains the private problem abstraction definitions.
Makefile.pq:
Remove include of MAKEFILE.STD, which doesn't exist at this point.
