| Commit message (Collapse) | Author | Age |
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It makes it incrementally clearer to read the code when the top of a macro
spaghetti-pile only receives the 3 arguments it uses, rather than 2 extra
ones which are not used. Also when you start pulling this thread out of
the sweater (i.e. remove unused args from XFS_BTREE_*_ADDR), a couple
other third arms etc fall off too. If they're not used in the macro, then
they sometimes don't need to be passed to the function calling the macro
either, etc....
Patch provided by Eric Sandeen (sandeen@sandeen.net).
SGI-PV: 960197
SGI-Modid: xfs-linux-melb:xfs-kern:28037a
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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xfs_mac.h and xfs_cap.h provide definitions and macros that aren't used
anywhere in XFS at all. They are left-overs from "to be implement at some
point in the future" functionality that Irix XFS has. If this
functionality ever goes into Linux, it will be provided at a different
layer, most likely through the security hooks in the kernel so we will
never need this functionality in XFS.
Patch provided by Eric Sandeen (sandeen@sandeen.net).
SGI-PV: 960895
SGI-Modid: xfs-linux-melb:xfs-kern:28036a
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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Fixes a few small issues (mostly cosmetic) that were picked up during the
review cycle for the last set of freeze path changes.
SGI-PV: 959267
SGI-Modid: xfs-linux-melb:xfs-kern:28035a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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The firstblock argument to xfs_bmap_finish is not used by that function.
Remove it and cleanup the code a bit.
Patch provided by Eric Sandeen.
SGI-PV: 960196
SGI-Modid: xfs-linux-melb:xfs-kern:28034a
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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Use the the generic VFS attr flags where appropriate instead of open
coding them to the same values.
Patch provided by Eric Sandeen.
SGI-PV: 960868
SGI-Modid: xfs-linux-melb:xfs-kern:28033a
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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wake_up's implementation does an implicit memory barrier so the explicit
memory barrier is not needed in vfs_sync_worker.
Patch provided by Ralf Baechle.
SGI-PV: 960867
SGI-Modid: xfs-linux-melb:xfs-kern:28032a
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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Removes unneeded sysctl insert at head behaviour. Cleans up sysctl
definitions to use C99 initialisers. Patch provided by Eric W. Biederman.
SGI-PV: 960192
SGI-Modid: xfs-linux-melb:xfs-kern:28031a
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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SGI-PV: 960791
SGI-Modid: xfs-linux-melb:xfs-kern:28021a
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Barry Naujok <bnaujok@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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The problem is the two callers of xfs_iozero() are rounding out the range
to be zeroed to the end of a fsb and in some cases this extends past the
new eof. The call to commit_write() in xfs_iozero() will cause the Linux
inode's file size to be set too high.
SGI-PV: 960788
SGI-Modid: xfs-linux-melb:xfs-kern:28013a
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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record.
The current Linux XFS freeze code is a mess. We flush the metadata buffers
out while we are still allowing new transactions to start and then fail to
flush the dirty buffers back out before writing the unmount and dummy
records to the log.
This leads to problems when the frozen filesystem is used for snapshots -
we do log recovery on a readonly image and often it appears that the log
image in the snapshot is not correct. Hence we end up with hangs, oops and
mount failures when trying to mount a snapshot image that has been created
when the filesystem has not been correctly frozen.
To fix this, we need to move th metadata flush to after we wait for all
current transactions to complete in teh second stage of the freeze. This
means that when we write the final log records, the log should be clean
and recovery should never occur on a snapshot image created from a frozen
filesystem.
SGI-PV: 959267
SGI-Modid: xfs-linux-melb:xfs-kern:28010a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Donald Douwsma <donaldd@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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When writing less than a filesystem block of data into an unwritten extent
via buffered I/O, __xfs_get_blocks fails to set the buffer new flag. As a
result, the generic code will not zero either edge of the block resulting
in garbage being written to disk either side of the real data. Set the
buffer new state on bufferd writes to unwritten extents to ensure that
zeroing occurs.
SGI-PV: 960328
SGI-Modid: xfs-linux-melb:xfs-kern:28000a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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After filesystem recovery the superblock is re-read to bring in any
changes. If the per-cpu superblock counters are not re-initialized from
the superblock then the next time the per-cpu counters are disabled they
might overwrite the global counter with a bogus value.
SGI-PV: 957348
SGI-Modid: xfs-linux-melb:xfs-kern:27999a
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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SGI-PV: 956323
SGI-Modid: xfs-linux-melb:xfs-kern:27940a
Signed-off-by: Kevin Jamieson <kjamieson@bycast.com>
Signed-off-by: David Chatterton <chatz@sgi.com>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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The block reservation mechanism has been broken since the per-cpu
superblock counters were introduced. Make the block reservation code work
with the per-cpu counters by syncing the counters, snapshotting the amount
of available space and then doing a modifcation of the counter state
according to the result. Continue in a loop until we either have no space
available or we reserve some space.
SGI-PV: 956323
SGI-Modid: xfs-linux-melb:xfs-kern:27895a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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The free block modification code has a 32bit interface, limiting the size
the filesystem can be grown even on 64 bit machines. On 32 bit machines,
there are other 32bit variables in transaction structures and interfaces
that need to be expanded to allow this to work.
SGI-PV: 959978
SGI-Modid: xfs-linux-melb:xfs-kern:27894a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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SGI-PV: 959388
SGI-Modid: xfs-linux-melb:xfs-kern:27805a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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SGI-PV: 958747
SGI-Modid: xfs-linux-melb:xfs-kern:27792a
Signed-off-by: Barry Naujok <bnaujok@sgi.com>
Signed-off-by: Russell Cattelan <cattelan@thebarn.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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SGI-PV: 959264
SGI-Modid: xfs-linux-melb:xfs-kern:27750a
Signed-off-by: Vlad Apostolov <vapo@sgi.com>
Signed-off-by: David Chatterton <chatz@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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SGI-PV: 959140
SGI-Modid: xfs-linux-melb:xfs-kern:27712a
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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functions, but they
a) ignore the flags parameter completely, and b) are never called
directly, only via the flag-less defines anyway
So, drop the #define indirection, and rename mraccessf to mraccess, etc.
SGI-PV: 959138
SGI-Modid: xfs-linux-melb:xfs-kern:27711a
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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SGI-PV: 959137
SGI-Modid: xfs-linux-melb:xfs-kern:27710a
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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SGI-PV: 954580
SGI-Modid: xfs-linux-melb:xfs-kern:27702a
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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SGI-PV: 954580
SGI-Modid: xfs-linux-melb:xfs-kern:27701a
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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SGI-PV: 952227
SGI-Modid: xfs-linux-melb:xfs-kern:27692a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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The existing per-cpu superblock counter code uses the global superblock
spin lock when we approach ENOSPC for global synchronisation. On larger
machines than this code was originally tested on this can still get
catastrophic spinlock contention due increasing rebalance frequency near
ENOSPC.
By introducing a sleeping lock that is used to serialise balances and
modifications near ENOSPC we prevent contention from needlessly from
wasting the CPU time of potentially hundreds of CPUs.
To reduce the number of balances occuring, we separate the need rebalance
case from the slow allocate case. Now, a counter running dry will trigger
a rebalance during which counters are disabled. Any thread that sees a
disabled counter enters a different path where it waits on the new mutex.
When it gets the new mutex, it checks if the counter is disabled. If the
counter is disabled, then we _know_ that we have to use the global counter
and lock and it is safe to do so immediately. Otherwise, we drop the mutex
and go back to trying the per-cpu counters which we know were re-enabled.
SGI-PV: 952227
SGI-Modid: xfs-linux-melb:xfs-kern:27612a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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Sandeen.
SGI-PV: 958736
SGI-Modid: xfs-linux-melb:xfs-kern:27596a
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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gcc-4.1 and more recent aggressively inline static functions which
increases XFS stack usage by ~15% in critical paths. Prevent this from
occurring by adding noinline to the STATIC definition.
Also uninline some functions that are too large to be inlined and were
causing problems with CONFIG_FORCED_INLINING=y.
Finally, clean up all the different users of inline, __inline and
__inline__ and put them under one STATIC_INLINE macro. For debug kernels
the STATIC_INLINE macro uninlines those functions.
SGI-PV: 957159
SGI-Modid: xfs-linux-melb:xfs-kern:27585a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: David Chatterton <chatz@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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The {test,set,clear}_bit() operations take a bit index for the bit to
operate on. The XBT_* flags are defined as bit fields which is incorrect,
not to mention the way the bit fields are enumerated is broken too. This
was only working by chance.
Fix the definitions of the flags and make the code using them use the
{test,set,clear}_bit() operations correctly.
SGI-PV: 958639
SGI-Modid: xfs-linux-melb:xfs-kern:27565a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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The message buffer used by cmn_err() is only 256 bytes and some CXFS
messages were exceeding this length. Since we were using vsprintf() and
not checking for buffer overruns we were clobbering memory beyond the
buffer. The size of the buffer has been increased to 1024 bytes so we can
capture these larger messages and we are now using vsnprintf() to prevent
overrunning the buffer size.
SGI-PV: 958599
SGI-Modid: xfs-linux-melb:xfs-kern:27561a
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Geoffrey Wehrman <gwehrman@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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At the last stage of a freeze, we flush the buftarg synchronously over and
over again until it succeeds twice without skipping any buffers.
The delwri list flush skips pinned buffers, but tries to flush all others.
It removes the buffers from the delwri list, then tries to lock them one
at a time as it traverses the list to issue the I/O. It holds them locked
until we issue all of the I/O and then unlocks them once we've waited for
it to complete.
The problem is that during a freeze, the filesystem may still be doing
stuff - like flushing delalloc data buffers - in the background and hence
we can be trying to lock buffers that were on the delwri list at the same
time. Hence we can get ABBA deadlocks between threads doing allocation and
the buftarg flush (freeze) thread.
Fix it by skipping locked (and pinned) buffers as we traverse the delwri
buffer list.
SGI-PV: 957195
SGI-Modid: xfs-linux-melb:xfs-kern:27535a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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The XFS quiet mount logic was inverted making quiet mounts noisy and vice
versa. Fix it.
SGI-PV: 958469
SGI-Modid: xfs-linux-melb:xfs-kern:27520a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Tim Shimmin <tes@sgi.com>
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Use irq_handler_t for passing clock handler routine around.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove include of asm/system.h, not needed.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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remap() the region we get from mmap() to mark the fact that we are
using all of the available slack space. Any slack space is used
to form a simple brk region, and potentially more stack space than
requested at load time.
Any searches of the vma chain may well fail looking for
stack (and especially arg) addresses if the remaping is not done.
The simplest example is /proc/<pid>/cmdline, since the args
are pretty much always at the top of the data/bss/stack region.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use irq_handler_t for passing interrupt handler around.
Fix optional profiler handler to return a irq_return_t type.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use irq_handler_t type for passing timer handler to timer init code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Include the unused sections in the m68knommu linker scripts.
Needed for modules support.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix coldfire kernel timer to remove regs arg.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
ieee1394: fix host device registering when nodemgr disabled
ieee1394: video1394: DMA fix
ieee1394: raw1394: prevent unloading of low-level driver
ieee1394: dv1394: tidy up card removal
ieee1394: dv1394: fix CardBus card ejection
ieee1394: sbp2: lower block queue alignment requirement
ieee1394: sbp2: remove bogus "emulated" host flag
ieee1394: save one word in struct hpsb_host
ieee1394: restore config ROM when resuming
ieee1394: ohci1394: drop pcmcia-cs compatibility code
ieee1394: nodemgr: check info_length in ROM header earlier
the scheduled IEEE1394_OUI_DB removal
the scheduled IEEE1394_EXPORT_FULL_API removal
ieee1394: sbp2: use a better wildcard for blacklist
Add PCI class ID for firewire OHCI controllers.
ieee1394: modified csr1212_key_id_type_map to support lisight
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Since my commit 8252bbb1363b7fe963a3eb6f8a36da619a6f5a65 in 2.6.20-rc1,
host devices have a dummy driver attached. Alas the driver was not
registered before use if ieee1394 was loaded with disable_nodemgr=1.
This resulted in non-functional FireWire drivers or kernel lockup.
http://bugzilla.kernel.org/show_bug.cgi?id=7942
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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This together with the phys_to_virt fix in lib/swiotlb.c::swiotlb_sync_sg
fixes video1394 DMA on machines with DMA bounce buffers, especially Intel
x86-64 machines with > 3GB RAM.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: David Moore <dcm@acm.org>
Tested-by: Nicolas Turro <Nicolas.Turro@inrialpes.fr>
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Unloading the low-level driver module of a FireWire host can lead to
all sorts of trouble if a raw1394 userspace client is using the host.
Just disallow it by incrementing the LLD's module reference count on
a RAW1394_REQ_SET_CARD write operation. Decrement it when the file
is closed.
This feature wouldn't be relevant if "modprobe -r video1394" or
"modprobe -r dv1394" didn't automatically unload ohci1394 too.
http://bugzilla.kernel.org/show_bug.cgi?id=7701
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Dan Dennedy <dan@dennedy.org>
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small coding style touch-up and terser coding
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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Fix NULL pointer dereference on hot ejection of a FireWire card while
dv1394 was loaded. http://bugzilla.kernel.org/show_bug.cgi?id=7121
I did not test card ejection with open /dev/dv1394 files yet.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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The old setting is copy & waste from usb-storage and doesn't apply to
sbp2. There is only 4-byte alignment required for everything, except
for S/G table elements which have to be 8-byte aligned according to the
SBP-2 spec. (They happen to be ____cacheline_aligned in our
implementation. Whether that's good is another question.)
We now simply don't tune block queue alignment at all. The default
alignment would surely never become anything else than a multiple of 4,
else tons of calls to blk_queue_dma_alignment would have to be added
everywhere in drivers/...
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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There is no emulation going on here.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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hpsb_host.config_roms is a bitfield of which only one bit is currently
used. hpsb_host.update_config_rom is only a Boolean. Neither one is
accessed in hot code paths or with alignment requirements.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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After PM suspend + resume, the local configuration ROM was not restored.
This prevented remote nodes from recognizing the resuming machine.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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#ifdef PCMCIA is only true if compiled inside pcmcia-cs, isn't it?
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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The whole ROM area which is covered by the crc_length field of the ROM
header was fetched before the info_length field was checked for correct
general ROM format. This might be wasteful or even dangerous with nodes
with minimal ROM, nonstandard ROM, or corrupt ROM.
Perform this check at the earliest opportunity.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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