unable to automatically find alternate superblocks. This checkin
places the information needed to find alternate superblocks to the
end of the area reserved for the boot block.
Filesystems created with a newfs of this vintage or later will
create the recovery information. If you have a filesystem created
prior to this change and wish to have a recovery block created for
your filesystem, you can do so by running fsck in forground mode
(i.e., do not use the -p or -y options). As it starts, fsck will
ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' to which you should
answer yes.
Discussed with: kib, imp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D11589
a mismatch, but will allow fsck to continue when the last alternate
superblock gets corrupted somehow.
Also, remove searching for alternate super blocks. It should have been
removed two years ago with r276737 by imp@. Leave minor vestiges in
place in case someone wants to solve the hard problem of knowing where
altnernate superblocks live without access to data formerly stored in
disklabels.
Differential Revision: https://reviews.freebsd.org/D11589
Extend the ino_t, dev_t, nlink_t types to 64-bit ints. Modify
struct dirent layout to add d_off, increase the size of d_fileno
to 64-bits, increase the size of d_namlen to 16-bits, and change
the required alignment. Increase struct statfs f_mntfromname[] and
f_mntonname[] array length MNAMELEN to 1024.
ABI breakage is mitigated by providing compatibility using versioned
symbols, ingenious use of the existing padding in structures, and
by employing other tricks. Unfortunately, not everything can be
fixed, especially outside the base system. For instance, third-party
APIs which pass struct stat around are broken in backward and
forward incompatible ways.
Kinfo sysctl MIBs ABI is changed in backward-compatible way, but
there is no general mechanism to handle other sysctl MIBS which
return structures where the layout has changed. It was considered
that the breakage is either in the management interfaces, where we
usually allow ABI slip, or is not important.
Struct xvnode changed layout, no compat shims are provided.
For struct xtty, dev_t tty device member was reduced to uint32_t.
It was decided that keeping ABI compat in this case is more useful
than reporting 64-bit dev_t, for the sake of pstat.
Update note: strictly follow the instructions in UPDATING. Build
and install the new kernel with COMPAT_FREEBSD11 option enabled,
then reboot, and only then install new world.
Credits: The 64-bit inode project, also known as ino64, started life
many years ago as a project by Gleb Kurtsou (gleb). Kirk McKusick
(mckusick) then picked up and updated the patch, and acted as a
flag-waver. Feedback, suggestions, and discussions were carried
by Ed Maste (emaste), John Baldwin (jhb), Jilles Tjoelker (jilles),
and Rick Macklem (rmacklem). Kris Moore (kris) performed an initial
ports investigation followed by an exp-run by Antoine Brodin (antoine).
Essential and all-embracing testing was done by Peter Holm (pho).
The heavy lifting of coordinating all these efforts and bringing the
project to completion were done by Konstantin Belousov (kib).
Sponsored by: The FreeBSD Foundation (emaste, kib)
Differential revision: https://reviews.freebsd.org/D10439
Instead of casting listmax and numdirs to unsigned values just define
them as unsigned and avoid the casts. Use reallocarray(3).
While here, fs_ncg is already unsigned so the cast is unnecessary.
Reviewed by: mckusick
MFC after: 2 weeks
The loop that scans the used inode map when soft updates is in use
assumes that the inosused variable is signed. However, ino_t is
unsigned, so the loop invariant is incorrect and the check for
inosused wrapping to < 0 can never be true.
Instead of checking for wrap after the fact just prevent it from
happening in the first place.
PR: 218592
Submitted by: Todd Miller <todd.miller@courtesan.com>
Reviewed by: mckusick
MFC after: 1 week
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.
Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96
Move sentence to a new line as advised by igor.
PR: 212474
Approved by: bcr (mentor)
MFC after: 5 days
Differential Revision: https://reviews.freebsd.org/D8104
alternate superblock location when given in the -b option. When int
is 32-bits, block numbers larger than 2^32 would get truncated. This
commit changes the storage fpr the alternate superblock location
to a ufs2_daddr_t.
Submitted by: Dmitry Sivachenko <trtrmitya@gmail.com>
Maybe this case is impossible. Either way, when attempting to "/dev/"-prefix a
non-global device name, check that we do not overrun the f_mntfromname buffer.
In this case, truncating (with strlcpy or similar) would not be useful, since
the f_mntfromname result of getmntpt() is passed directly to open(2) later.
Reported by: Coverity
CID: 1006789
Sponsored by: EMC / Isilon Storage Division
Any value of uint16_t will be internally promoted to int so
changing them to an unsigned value doesn't help.
Missing revert value in suj_read().
X-MFC with: r298551
Any value of uint16_t will be internally promoted to int so
changing them to an unsigned value doesn't help.
Make clear we want to use uint32_t for closedisk()
X-MFC with: r298551
fs_ncg is of type uint32, and we were indexing it with an int.
Fixed this using an unsigned type and adopt some other unsigned
indexes to remind us when we are dealing with unsigned numbers.
Reviewed by: mckusick
MFC after: 5 days
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.
Still need to add real targets under targets/ to build packages.
Differential Revision: D2796
Reviewed by: brooks imp
errors have been detected in a particular run.
Clean up the global state variables so that a restart can happen correctly.
Separate the global variables in fsck_ffs and fsdb to their own file. This
fixes header sharing with fscd.
Correctly initialize, static-ize, and remove global variables as needed in
dir.c. This fixes a problem with lost+found directories that was causing
a segfault.
Correctly initialize, static-ize, and remove global variables as needed in
suj.c.
Initialize the suj globals before allocating the disk object, not after.
Also ensure that 'preen' mode doesn't conflict with 'restart' mode
Submitted by: scottl, max
Reviewed by: max, mckusick (earlier version)
Obtained from: Netflix
MFC after: 3 days
di_extsize is the EA size and as such it should be unsigned.
Adjust related types for consistency.
Reviewed by: mckusick (previous version)
MFC after: 3 weeks
