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it's a good idea to use atomic.h operations on it. This mechanic
change updates all bit operations on p_flag to atomic_{set,clear}bits_int.
Only exception is that P_OWEUPC is set by MI code before calling
need_proftick and it's automatically cleared by ADDUPC. There's
no reason for MD handling of that flag since everyone handles it the
same way.
kettenis@ ok
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rt and such; tested and ok miod drahn
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option DISKLABEL_I386.
ok deraadt@
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for a bare FAT12/16/32 filesystem. If one is found, spoof it as 'i'.
This enables iPod shuffles and other umass devices that are shipped
with a bare FAT32 filesystem to be used as install media. And
generally makes things easier for the user just trying to mount some
media, e.g. floppies.
Does not make it safe to write a disklabel or MBR on such a device!
That will still obliterate the FAT filesystem.
Help and suggestions from tom@ and deraadt@. Feedback and suggestions
for future enhancements from espie@ mickey@ and peter@.
ok tom@ deraadt@
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right now that are supposed to be atomic with respect to interrupts and
SMP: atomic_setbits_int and atomic_clearbits_int.
All architectures other than i386 and amd64 get dummy implementations
since at first we'll be replacing operations that are done with
"a |= bit" and "a &= ~bit" today. More proper implementations will follow
kettenis@, miod@ ok
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of the disk. Fixes the creation of spurious 'i' partitions on new iPod
Shuffle. And other devices with no MBR, just a FAT32 filesystem.
Pointed out most recently by Stephan A. Rickauer for his sixth
generation, clip-on iPod shuffle.
Fix tested by Stephan.
ok pedro@ tom@ miod@ 'nice' deraadt@
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statclock(), do not bother doing this in userret() anymore. As a result,
userret() does not need its pc and ticks arguments, simplify.
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for cpu_swapin() on hppa* which is kept).
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extended partition except on alpha, hppa, hppa64 and mips64. So don't
spoof extended partitions as 'a' and try to read a disklabel from
them. Make all archs consistant.
When we can boot from extended partitions we can change to reading and
writing disklabels from them.
This means the first OpenBSD ('A6') extended partition will now be
ignored during spoofing, just as subsequent ones have always been.
Feedback from tom@, weingart@ and deraadt@.
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partitions with 0 in the length field we don't need to test for
and skip partitions that are all zeros. Eliminating that code
allows elimination of a local pointer.
"0 length partitions are definately dead" deraadt@
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De-register. Move declaration to top of function for DOS MBR
processing. Indent nit in macppc.
No functional change.
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than lp->d_partitions[8+n++]. All other cases already use the pointer.
No functional change.
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"The dosparts member of cpu_disklabel was not used for any persistant
data. Eliminate it, and just use the data being read in while
processing MBR and EBR records.
Should be no functional change.
ok weingart@ deraadt@"
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some architectures (kaboom); that will be fixed in the next iteration
hopefully!
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data. Eliminate it, and just use the data being read in while
processing MBR and EBR records.
Should be no functional change.
ok weingart@ deraadt@
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disklabel. Fixes 'double spoofing' of these partitions as both 'a' and
something in the 'i' to 'p' range.
OpenBSD changed its MBR partition type to 'A6' eight years ago. As a
backward compatibility measure NetBSD and FreeBSD MBR partitions were
still spoofed as 'a' partitions when no OpenBSD partition could be
found. This bit of backward compatibility is no longer required.
'we can get rid of it' deraadt@
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readdoslabel(). A bit of bad144 fallout.
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don't include dkbad.h when nothing in it is used. Missed
arm/include/disklabel.h first time around.
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don't have wd* in GENERIC, since wd* is the only place such info is
being used. First step of eliminating bad144 bad sector info from all
disklabels.
'go go go' deraadt@
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r1.54 of i386/disksubr.c). The check incorrectly handled extended
partitions. Possibly a symptom of a deeper problem with extended
partition offsets that will be addressed post-4.0.
Problem reported/fix tested by A. Velichinsky, cause diagnosed by
otto@.
ok pedro@ mickey@ miod@ deraadt@
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done this 4.5 years ago already but regressions happened; reminded by
a similar commit in NetBSD (from mrg@); ok damien@ deraadt@ jason@
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block past d_secperunit.
Fixes devices where bogus partitions with a starting offset >
d_secperunit were created. e.g. floppies formatted by Caldera DR-DOS.
ok pedro@
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them return 'invalid geometry' when d_secpercyl == 0. While there move
the check to a consistant location (after the check of d_secperunit)
and use a consistant idiom (i.e. some readdisklabel()'s have no 'done'
label).
prodded by thib@ after a bad macppc experience. ok deraadt@
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RAW_PART's p_size. Since d_secperunit is initialized to 0x1fffffff if
not specified there should be no need to use the magic number again.
And if d_secperunit was specified then that value should be used
instead of the magic number.
This was already being done for hp300, luna88k, mac68k, mvme68k,
mvme88k.
Should be a no-op.
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ok miod
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just eliminate the check to set DISKLABEL_I386 with it. If you want
DISKLABEL_I386, use that option.
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DOS MBR' logic.
Leave DOS MBR logic inside #if defined(DISKLABEL_I386) blocks until
impact on install media can be evaluated. Eliminates most remnants
of cross-endian, cross-architecture disklabel processing attempts.
Fix some mips64 issues with last commit, found by kettenis@.
No functional change.
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disklabel code that was intended to support cross-endian and cross-architecture
use of disklabels. Never actually used except for Alpha<->Amiga moves that now
can't happen anyway.
Leave native and DOS MBR disklabel code. Tested on alpha and hppa.
No functional change.
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calls in alpha, hppa, hppa64 and mips63 when accessing the two DOS MBR
u_int32_t fields dp_size and dp_start.
No functional change.
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functional change.
ok deraadt@
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so that things can use it; tested on all architectures; ok kettenis
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gone.
'go ahead' deraadt@
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to cut all ties when it left for the attic. Eliminate (theoretical)
ability to read Amiga disklabels on those architectures.
mips64 compile tested by miod@
"whack away" deraadt@ "my amiga runs 3.2" niklas@
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TLB-friendly cache function. From NetBSD.
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implemented. Use int.
ok mickey@ miod@
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found by drahn@
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ok deraadt@ kettenis@
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