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free room in struct partition by packing fragment size and
fragments/block more tighlty and use the resulting space to make
offset and size 48 bits. For the disk part we use spare fields in
struct disklabel. Kernel converts in-mem copy of the on-disk
label if needed, disklabel(8) writes new version.
We are careful to only change fields not used by bootloaders.
Conception of basic scheme by deraadt.
ok deraadt@ krw@
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spec_read();
ok pedro@
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effectively been a no-op for quite some time now,
without promise for future usage.
ok pedro@
Testing by krw@ (earlier diff)
and Johan Mson Lindman (tybollt@solace.miun.se)
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devices with sectorsizes other than 512. e.g. cd's. Fixes PR #5235
from Paul Stoeber with a slightly tweaked diff. NetBSD did the same
with their r1.59 in 2001, closing their PR#3261 and PR#14026.
tweak suggestions and ok pedro@
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the only use was in an #if notyet chunk since '97.
ok miod@
'no objections' pedro@
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from krw@ and toby@, subliminal prodding from dlg@, okay deraadt@.
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block devices where ioctl request is zero and data is B_TAPE, which no sane
userland program uses those days.
General disgust and ok deraadt@ millert@ weingart@
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Discussed with and ok deraadt@ millert@
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a write that will globber the whole buffer, and it's not in cache, do
not bother reading it in. That's wrong, since the user may be trying to
write beyond the disk extent, in which case we definitely want to return
an error, rather than returning saying the write was okay, and failing
later on at an 'uncatched' biodone(). Okay tedu@.
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double-lock the vnode if we're coming from vclean()
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which is not possible here. Problem found and fixed by form@.
ok millert@ fgsch@ pedro@
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now call the poll backend. With this change we implement greater
poll(2) functionality instead of emulating it via the select backend.
Adapted from NetBSD and including some changes from FreeBSD.
Tested by many, deraadt@ OK
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rescinded 22 July 1999. Proofed by myself and Theo.
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The inheritace is implemented by setting the default vnodeop to a
bypass op that repeats the operation on the spec/fifo vnodeop vector.
The overhead of one extra indirect function call is worth the cleanup
and improved correctness.
This actually solves a few bugs where some vnode ops were missing from
some vectors (like kqfilter or revoke). (and even more on the ubc
branch).
Inspired by the same thing done in FreeBSD.
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machines or some configurations or in some phase of the moon (we actually
don't know when or why) files disappeared. Since we've not been able to
track down the problem in two weeks intense debugging and we need -current
to be stable, back out everything to a state it had before UBC.
We apologise for the inconvenience.
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the filesystem if we're allowed to mmap the file.
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okay deraadt@, millert@
from jlemon@freebsd.org:
extend kqueue down to the device layer, backwards compatible approach
suggested by peter@freebsd.org
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Change VM/UVM to use buf_replacevnode to change the vnode associated
with a buffer.
Addition v_bioflag for flags written in interrupt handlers
(and read at splbio, though not strictly necessary)
Add vwaitforio and use it instead of a while loop of v_numoutput.
Fix race conditions when manipulation vnode free list
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file system inode instead
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to be vop_generic_revoke, vop_generic_bwrite, vop_generic_islocked,
vop_generic_lock and vop_generic_unlock.
Create vop_generic_abortop and propogate change to all file systems.
Fix PR/371.
Get rid of locking in NULLFS (should be mostly unnecessary now except for
forced unmounts).
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of security check. Restricted access to /dev/memat higher secure levels
now enabled.
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