Commit Graph

24100 Commits

Author SHA1 Message Date
Jan Beulich 45948d7720 [PATCH] x86_64: save FPU context slightly later
Touching of the floating point state in a kernel debugger must be
NMI-safe, specifically math_state_restore() must be able to deal with
being called out of an NMI context. In order to do that reliably, the
context switch code must take care to not leave a window open where
the current task's TS_USEDFPU flag and CR0.TS could get out of sync.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 09:10:52 -08:00
Jan Beulich 2b514e74f4 [PATCH] x86_64: eliminate set_debug()
For consistency and to have only a single place of definition, replace
set_debug() uses with set_debugreg(), and eliminate the definition of
thj former.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 09:10:52 -08:00
Jan Beulich 893efca927 [PATCH] x86_64: disallow multi-byte hardware execution breakpoints
While AMD formally permits multi-byte execution breakpoints, Intel
disallows 8-byte as much as 2- or 4-byte ones.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 09:10:52 -08:00
Jan Beulich 3240114d23 [PATCH] x86_64: cpu_pda array to macro followup correction
Fix one place where the previous change of cpu_pda from being an array
to being a macro was not properly carried out.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 09:10:52 -08:00
Andi Kleen abe059e759 [PATCH] x86_64: Rename struct node in x86-64 NUMA code to struct bootnode
It conflicts with the struct node in node.h
Actually the x86-64 version was there first, but ..

Suggested by Jan Beulich

Cc: jbeulich@novell.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 09:10:52 -08:00
Andi Kleen 913bd90601 [PATCH] x86_64: Increase the variability of the process stack on 64bit architectures
8MB is not really very random, use 1GB (or more with larger page sizes)
instead.

Also use the low bits of the random generator output now instead of
throwing them away.

Only enabled on x86-64 right now. Other architectures need to add
a suitable STACK_RND_MASK

Cc: mingo@elte.hu
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 09:10:52 -08:00
Andi Kleen dca99a38bc [PATCH] x86-64: Use -mtune=generic for generic kernels
The upcomming gcc 4.2 got a new option -mtune=generic to tune
code for both common AMD and Intel CPUs. Use this option
when available for generic kernels.

On x86-64 it is used with CONFIG_GENERIC_CPU. On i386 it is
enabled with CONFIG_X86_GENERIC.  It won't affect the base
line CPU support in any ways and also not the minimum supported CPU.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 09:10:52 -08:00
Jan Beulich c7ea1a96ec [PATCH] x86_64: Use correct PUD for memory hotadd
Memory >39bits has a different PUD.

Cc: "Tolentino, Matthew E" <matthew.e.tolentino@intel.com>

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 09:10:52 -08:00
Andi Kleen af8fc1f528 [PATCH] x86_64: Update defconfig
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 09:10:52 -08:00
Linus Torvalds be9bf30c73 Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] kzalloc conversion for gx-suspmod
  [CPUFREQ] Whitespace cleanup
  [CPUFREQ] Mark longhaul driver as broken.
  [PATCH] cpufreq: fix section mismatch warnings
  [CPUFREQ] Fix the p4-clockmod N60 errata workaround.
  [CPUFREQ] Fix handling for CPU hotplug
  [CPUFREQ] powernow-k8: Let cpufreq driver handle affected CPUs
  [CPUFREQ] Lots of whitespace & CodingStyle cleanup.
  [CPUFREQ] Remove duplicate cpuinfo struct
  [CPUFREQ] Silence powernow-k8 warning on k7's.
2006-03-25 08:52:23 -08:00
Linus Torvalds ace4847173 Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband:
  IPoIB: P_Key change event handling
  IB/mthca: Fix modify QP error path
  IPoIB: Fix network interface "RUNNING" status
  IB/mthca: Fix indentation
  IB/mthca: Fix uninitialized variable in mthca_alloc_qp()
  IB/mthca: Check SRQ limit in modify SRQ operation
  IB/mthca: Check that SRQ WQE size does not exceed device's max value
  IB/mthca: Check that sgid_index and path_mtu are valid in modify_qp
  IB/srp: Use a fake scatterlist for non-SG SCSI commands
  IPoIB: Pass correct pointer when flushing child interfaces
2006-03-25 08:51:35 -08:00
Linus Torvalds 0c50527379 Merge branch 'upstream-linus' of git://oss.oracle.com/home/sourcebo/git/ocfs2
* 'upstream-linus' of git://oss.oracle.com/home/sourcebo/git/ocfs2:
  ocfs2: finally remove MLF* macros
  ocfs2: don't use MLF* in the file system
  ocfs2: don't use MLF* in dlm/ files
  ocfs2: don't use MLF* in cluster/ files
  [PATCH] ocfs2: dlm recovery fixes
  [PATCH] ocfs2: fix hang in dlm lock resource mastery
  ocfs2: use __attribute__ format
2006-03-25 08:50:56 -08:00
Linus Torvalds 7d14f145f8 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] New IA64 core/thread detection patch
  [IA64] Increase max node count on SN platforms
  [IA64] Increase max node count on SN platforms
  [IA64] Increase max node count on SN platforms
  [IA64] Increase max node count on SN platforms
  [IA64] Tollhouse HP: IA64 arch changes
  [IA64] cleanup dig_irq_init
  [IA64] MCA recovery: kernel context recovery table
  IA64: Use early_parm to handle mvec_name and nomca
  [IA64] move patchlist and machvec into init section
  [IA64] add init declaration - nolwsys
  [IA64] add init declaration - gate page functions
  [IA64] add init declaration to memory initialization functions
  [IA64] add init declaration to cpu initialization functions
  [IA64] add __init declaration to mca functions
  [IA64] Ignore disabled Local SAPIC Affinity Structure in SRAT
  [IA64] sn_check_intr: use ia64_get_irr()
  [IA64] fix ia64 is_hugepage_only_range
2006-03-25 08:49:25 -08:00
Linus Torvalds 2e1ca21d46 Merge master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild
* master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild: (46 commits)
  kbuild: remove obsoleted scripts/reference_* files
  kbuild: fix make help & make *pkg
  kconfig: fix time ordering of writes to .kconfig.d and include/linux/autoconf.h
  Kconfig: remove the CONFIG_CC_ALIGN_* options
  kbuild: add -fverbose-asm to i386 Makefile
  kbuild: clean-up genksyms
  kbuild: Lindent genksyms.c
  kbuild: fix genksyms build error
  kbuild: in makefile.txt note that Makefile is preferred name for kbuild files
  kbuild: replace PHONY with FORCE
  kbuild: Fix bug in crc symbol generating of kernel and modules
  kbuild: change kbuild to not rely on incorrect GNU make behavior
  kbuild: when warning symbols exported twice now tell user this is the problem
  kbuild: fix make dir/file.xx when asm symlink is missing
  kbuild: in the section mismatch check try harder to find symbols
  kbuild: fix section mismatch check for unwind on IA64
  kbuild: kill false positives from section mismatch warnings for powerpc
  kbuild: kill trailing whitespace in modpost & friends
  kbuild: small update of allnoconfig description
  kbuild: make namespace.pl CROSS_COMPILE happy
  ...

Trivial conflict in arch/ppc/boot/Makefile manually fixed up
2006-03-25 08:48:48 -08:00
Nick Piggin 315ab19a6d [PATCH] mm: restore vm_normal_page check
Hugh is rightly concerned that the CONFIG_DEBUG_VM coverage has gone too
far in vm_normal_page, considering that we expect production kernels to be
shipped with the option turned off, and that the code has been under some
large changes recently.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:43:45 -08:00
Andrew Morton f081a529f8 [PATCH] cpufreq: speedstep-smi asm fix
Fix bug identified by Linus Torvalds <torvalds@osdl.org>: the `out'
instruction depends upon the state of memory_data[], so we need to tell gcc
that before executing it. (The opcode, not gcc).

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=5553

Thanks to Antonio Ospite <ospite@studenti.unina.it> for testing.

Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:42:45 -08:00
Linus Torvalds 1e8c573933 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (21 commits)
  BUG_ON() Conversion in drivers/video/
  BUG_ON() Conversion in drivers/parisc/
  BUG_ON() Conversion in drivers/block/
  BUG_ON() Conversion in sound/sparc/cs4231.c
  BUG_ON() Conversion in drivers/s390/block/dasd.c
  BUG_ON() Conversion in lib/swiotlb.c
  BUG_ON() Conversion in kernel/cpu.c
  BUG_ON() Conversion in ipc/msg.c
  BUG_ON() Conversion in block/elevator.c
  BUG_ON() Conversion in fs/coda/
  BUG_ON() Conversion in fs/binfmt_elf_fdpic.c
  BUG_ON() Conversion in input/serio/hil_mlc.c
  BUG_ON() Conversion in md/dm-hw-handler.c
  BUG_ON() Conversion in md/bitmap.c
  The comment describing how MS_ASYNC works in msync.c is confusing
  rcu: undeclared variable used in documentation
  fix typos "wich" -> "which"
  typo patch for fs/ufs/super.c
  Fix simple typos
  tabify drivers/char/Makefile
  ...
2006-03-25 08:41:09 -08:00
Linus Torvalds d71eecf3b8 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC]: Try to start getting SMP back into shape.
2006-03-25 08:39:55 -08:00
Linus Torvalds b55813a2e5 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [NETFILTER] x_table.c: sem2mutex
  [IPV4]: Aggregate route entries with different TOS values
  [TCP]: Mark tcp_*mem[] __read_mostly.
  [TCP]: Set default max buffers from memory pool size
  [SCTP]: Fix up sctp_rcv return value
  [NET]: Take RTNL when unregistering notifier
  [WIRELESS]: Fix config dependencies.
  [NET]: Fill in a 32-bit hole in struct sock on 64-bit platforms.
  [NET]: Ensure device name passed to SO_BINDTODEVICE is NULL terminated.
  [MODULES]: Don't allow statically declared exports
  [BRIDGE]: Unaligned accesses in the ethernet bridge
2006-03-25 08:39:20 -08:00
Linus Torvalds 368d17e068 Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (33 commits)
  V4L/DVB (3604): V4l printk fix
  V4L/DVB (3599c): Whitespace cleanups under Documentation/video4linux
  V4L/DVB (3599b): Whitespace cleanups under drivers/media
  V4L/DVB (3599a): Move drivers/usb/media to drivers/media/video
  V4L/DVB (3599): Implement new routing commands for wm8775 and cs53l32a.
  V4L/DVB (3598): Add bit algorithm adapter for the Conexant CX2341X boards.
  V4L/DVB (3597): Vivi: fix warning: implicit declaration of function 'in_interrupt'
  V4L/DVB (3588): Remove VIDIOC_G/S_AUDOUT from msp3400
  V4L/DVB (3587): Always wake thread after routing change.
  V4L/DVB (3584): Implement V4L2_TUNER_MODE_LANG1_LANG2 audio mode
  V4L/DVB (3582): Implement correct msp3400 input/output routing
  V4L/DVB (3581): Add new media/msp3400.h header containing the routing macros
  V4L/DVB (3580): Last round of msp3400 cleanups before adding routing commands
  V4L/DVB (3579): Move msp_modus to msp3400-kthreads, add JP and KR std detection
  V4L/DVB (3578): Make scart definitions easier to handle
  V4L/DVB (3577): Cleanup audio input handling
  V4L/DVB (3575): Cxusb: fix i2c debug messages for bluebird devices
  V4L/DVB (3574): Cxusb: fix debug messages
  V4L/DVB (3573): Cxusb: remove FIXME: comment in bluebird_patch_dvico_firmware_download
  V4L/DVB (3572): Cxusb: conditionalize gpio write for the medion box
  ...
2006-03-25 08:37:36 -08:00
Andrew Morton a9312fb839 [PATCH] git-scsi-misc: min() warning fix
drivers/scsi/sd.c: In function `sd_store_cache_type':
drivers/scsi/sd.c:193: warning: comparison of distinct pointer types lacks a cast

Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:02 -08:00
NeilBrown a9e102b60c [PATCH] More corrections to vfs.txt update
Thanks "Randy.Dunlap" <rdunlap@xenotime.net>

Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:02 -08:00
Roman Zippel 5ddcfa878d [PATCH] remove pps support
This removes the support for pps.  It's completely unused within the kernel
and is basically in the way for further cleanups.  It should be easier to
readd proper support for it after the rest has been converted to NTP4
(where the pps mechanisms are quite different from NTP3 anyway).

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:02 -08:00
Mark A. Greer e4294b3ecd [PATCH] serial: merge mpsc.h into mpsc.c
Merge mpsc.h into mpsc.c because its the only file that #include's mpsc.h.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:02 -08:00
Mark A. Greer 6261c8e34f [PATCH] serial: mpsc driver has definition of SUPPORT_SYSRQ below include of serial_core.h
The definition of SUPPORT_SYSRQ must come before #include of serial_core.h.
This patch moves the definition of SUPPORT_SYSRQ to be just after the #include
of config.h to make it consistent with 8250.c.

Reported-by: Stephane Chazelas <Stephane@artesyncp.com>
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:02 -08:00
Mark A. Greer a30ff2e348 [PATCH] serial: mpsc driver passes bad devname to request_irq()
The devname passed to request_irq() contained a '/' which is wrong.  At
a minimum, the '/' prevented the devname from showing up in
/proc/irq/<irq>/<devname>.  This patch replaces the '/' with a '-' to
fixes that problem.

Reported-by: Stephane Chazelas <Stephane@artesyncp.com>
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:02 -08:00
Eugene Teo 37f1e98425 [PATCH] Fix sequencer missing negative bound check
'int dev' came out of an 'unsigned char *' - as such, it will not get
a negative value. Thanks Valdis.

Signed-off-by: Eugene Teo <eugene.teo@eugeneteo.net>
Cc: Jaroslav Kysela <perex@suse.cz>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:02 -08:00
Luke Yang 1ad3dcc09c [PATCH] flat binary loader doesn't check fd table full
In binfmt_flat.c, the flat binary loader should check file descriptor table
and install the fd on the file.

Convert the function to single-exit and fix this bug.

Signed-off-by: "Luke Yang" <luke.adi@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:01 -08:00
Dimitri Sivanich f516342745 [PATCH] Add SA_PERCPU_IRQ flag support
Add support for SA_PERCPU_IRQ (only mmtimer.c uses this at this stage).

Signed-off-by: Dimitri Sivanich <sivanich@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:01 -08:00
Carsten Otte 6cc6b1226b [PATCH] remove needless check in fs/read_write.c
nr_segs is unsigned long and thus cannot be negative.  We checked against 0
few lines before.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:01 -08:00
Carsten Otte 5514854812 [PATCH] remove needless check in binfmt_elf.c
Local variable i is unsigned int and thus cannot be negative.

(akpm: unsigneds shouldn't be called `i'.  This value cannot possibly be
negative anyway).

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:01 -08:00
Randy Dunlap 0684241514 [PATCH] Doc: fix example firmware source code
Fix Documentation/firmware_class/ examples so that they will build.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:01 -08:00
Pekka Enberg d12ddde2bb [PATCH] udf: remove duplicate definitions
This patch removes duplicate definitions from include/linux/udf_fs_i.h
which are already defined in fs/udf/ecma_167.h.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:01 -08:00
Ralf Baechle 1e0a91ad52 [PATCH] EISA: Ignore generated file drivers/eisa/devlist.h
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:01 -08:00
Eric Dumazet d74beb9f33 [PATCH] Use unsigned int types for a faster bsearch
This patch avoids arithmetic on 'signed' types that are slower than
'unsigned'.  This saves space and cpu cycles.

size of kernel/sys.o before the patch (gcc-3.4.5)

    text    data     bss     dec     hex filename
   10924     252       4   11180    2bac kernel/sys.o

size of kernel/sys.o after the patch
    text    data     bss     dec     hex filename
   10903     252       4   11159    2b97 kernel/sys.o

I noticed that gcc-4.1.0 (from Fedora Core 5) even uses idiv instruction for
(a+b)/2 if a and b are signed.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:01 -08:00
Ashok Raj 34f361ade2 [PATCH] Check if cpu can be onlined before calling smp_prepare_cpu()
- Moved check for online cpu out of smp_prepare_cpu()

- Moved default declaration of smp_prepare_cpu() to kernel/cpu.c

- Removed lock_cpu_hotplug() from smp_prepare_cpu() to around it, since
  its called from cpu_up() as well now.

- Removed clearing from cpu_present_map during cpu_offline as it breaks
  using cpu_up() directly during a subsequent online operation.

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: "Li, Shaohua" <shaohua.li@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:01 -08:00
Randy Dunlap f1a1c2dc2a [PATCH] doc: more serial-console info
Add info on flow control for serial consoles.  Refer to netconsole option
also.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:00 -08:00
Chen, Kenneth W 174e27c607 [PATCH] direct-io: bug fix in dio handling write error
There is a bug in direct-io on propagating write error up to the higher I/O
layer.  When performing an async ODIRECT write to a block device, if a
device error occurred (like media error or disk is pulled), the error code
is only propagated from device driver to the DIO layer.  The error code
stops at finished_one_bio().  The aysnc write, however, is supposedly have
a corresponding AIO event with appropriate return code (in this case -EIO).
 Application which waits on the async write event, will hang forever since
such AIO event is lost forever (if such app did not use the timeout option
in io_getevents call.  Regardless, an AIO event is lost).

The discovery of above bug leads to another discovery of potential race
window with dio->result.  The fundamental problem is that dio->result is
overloaded with dual use: an indicator of fall back path for partial dio
write, and an error indicator used in the I/O completion path.  In the
event of device error, the setting of -EIO to dio->result clashes with
value used to track partial write that activates the fall back path.

It was also pointed out that it is impossible to use dio->result to track
partial write and at the same time to track error returned from device
driver.  Because direct_io_work can only determines whether it is a partial
write at the end of io submission and in mid stream of those io submission,
a return code could be coming back from the driver.  Thus messing up all
the subsequent logic.

Proposed fix is to separating out error code returned by the IO completion
path from partial IO submit tracking.  A new variable is added to dio
structure specifically to track io error returned in the completion path.

Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Acked-by: Zach Brown <zach.brown@oracle.com>
Acked-by: Suparna Bhattacharya <suparna@in.ibm.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:00 -08:00
Phillip Susi 0e6b3e5e97 [PATCH] udf: fix uid/gid options and add uid/gid=ignore and forget options
As Pekka Enberg pointed out, with the if still following the else, you can
still get a null uid written to the disk if you specify a default uid= without
uid=forget.  In other words, if the desktop user is uid=1000 and the mount
option uid=1000 is given ( which is done on ubuntu automatically and probably
other distributions that use hal ), then if any other user besides uid 1000
owns a file then a 0 will be written to the media as the owning uid instead.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:00 -08:00
Oliver Neukum 11b0b5abb2 [PATCH] use kzalloc and kcalloc in core fs code
Signed-off-by: Oliver Neukum <oliver@neukum.name>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:00 -08:00
Jesper Juhl 656bde5728 [PATCH] Fix memory leak in isapnp
Spotted by the Coverity checker as bug #666

akpm; there are several other `return 1;'s in there which aren't freeing
`dev'.  (A fix which converts this function to single-exit would be
preferred..)

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:00 -08:00
Jesper Juhl bda44e1d16 [PATCH] OSS: Fix leak in awe_wave, also remove pointless cast.
Fix resource leak and remove pointless cast of kmalloc return value.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:00 -08:00
Andrew Morton 96a9b4d31e [PATCH] cpumask: uninline any_online_cpu()
text    data     bss     dec     hex filename
before: 3605597 1363528  363328 5332453  515de5 vmlinux
after:  3605295 1363612  363200 5332107  515c8b vmlinux

218 bytes saved.

Also, optimise any_online_cpu() out of existence on CONFIG_SMP=n.

This function seems inefficient.  Can't we simply AND the two masks, then use
find_first_bit()?

Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:00 -08:00
Andrew Morton 8630282070 [PATCH] cpumask: uninline highest_possible_processor_id()
Shrinks the only caller (net/bridge/netfilter/ebtables.c) by 174 bytes.

Also, optimise highest_possible_processor_id() out of existence on
CONFIG_SMP=n.

Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:00 -08:00
Andrew Morton 3d18bd74a2 [PATCH] cpumask: uninline next_cpu()
text    data     bss     dec     hex filename
before: 3488027 1322496  360128 5170651  4ee5db vmlinux
after:  3485112 1322480  359968 5167560  4ed9c8 vmlinux

2931 bytes saved

Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:59 -08:00
Andrew Morton ccb46000f4 [PATCH] cpumask: uninline first_cpu()
text    data     bss     dec     hex filename
before: 3490577 1322408  360000 5172985  4eeef9 vmlinux
after:  3488027 1322496  360128 5170651  4ee5db vmlinux

Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:59 -08:00
Pat Gefre 64b9137943 [PATCH] Altix: rs422 support for ioc4 serial driver
Add rs422 support to the Altix ioc4 serial driver.

Signed-off-by: Patrick Gefre <pfg@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:59 -08:00
Eugene Teo fe9bab2df9 [PATCH] Fix sb_mixer use before validation
dev should be validated before it is being used as index to array.

Coverity bug #871

Signed-off-by: Eugene Teo <eugene.teo@eugeneteo.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:59 -08:00
Adrian Bunk 1f4d4a80fb [PATCH] i4l/isdn_tty.c: fix a check-after-use
Fix a check-after-use spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:59 -08:00
Jonathan Corbet daff89f324 [PATCH] radix-tree documentation cleanups
Documentation changes to help radix tree users avoid overrunning the tags
array.  RADIX_TREE_TAGS moves to linux/radix-tree.h and is now known as
RADIX_TREE_MAX_TAGS (Nick Piggin's idea).  Tag parameters are changed to
unsigned, and some comments are updated.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:59 -08:00