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devpts_get_sb() calls memset(0) to clear mount options and calls
parse_mount_options() if user specified any mount options.
The memset(0) is bogus since the 'mode' and 'ptmxmode' options are
non-zero by default. parse_mount_options() restores options to default
anyway and can properly deal with NULL mount options.
So in devpts_get_sb() remove memset(0) and call parse_mount_options() even
for NULL mount options.
Bug reported by Eric Paris: http://lkml.org/lkml/2009/5/7/448.
Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Tested-by: Marc Dionne <marc.c.dionne@gmail.com>
Reported-by: Eric Paris <eparis@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Reviewed-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: fix error handling in parse_DFS_referrals
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (38 commits)
MIPS: Sibyte: Fix locking in set_irq_affinity
MIPS: Use force_sig when handling address errors.
MIPS: Cavium: Add struct clocksource * argument to octeon_cvmcount_read()
MIPS: Rewrite <asm/div64.h> to work with gcc 4.4.0.
MIPS: Fix highmem.
MIPS: Fix sign-extension bug in 32-bit kernel on 32-bit hardware.
MIPS: MSP71xx: Remove the RAMROOT functions
MIPS: Use -mno-check-zero-division
MIPS: Set compiler options only after the compiler prefix has ben set.
MIPS: IP27: Get rid of #ident. Gcc 4.4.0 doesn't like it.
MIPS: uaccess: Switch lock annotations to might_fault().
MIPS: MSP71xx: Resolve use of non-existent GPIO routines in msp71xx reset
MIPS: MSP71xx: Resolve multiple definition of plat_timer_setup
MIPS: Make uaccess.h slightly more sparse friendly.
MIPS: Make access_ok() sideeffect proof.
MIPS: IP27: Fix clash with NMI_OFFSET from hardirq.h
MIPS: Alchemy: Timer build fix
MIPS: Kconfig: Delete duplicate definition of RWSEM_GENERIC_SPINLOCK.
MIPS: Cavium: Add support for 8k and 32k page sizes.
MIPS: TXx9: Fix possible overflow in clock calculations
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* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: Spelling fix in btrfs_lookup_first_block_group comments
Btrfs: make show_options result match actual option names
Btrfs: remove outdated comment in btrfs_ioctl_resize()
Btrfs: remove some WARN_ONs in the IO failure path
Btrfs: Don't loop forever on metadata IO failures
Btrfs: init inode ordered_data_close flag properly
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Signed-off-by: Sankar P <sankar.curiosity@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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The notreelog and flushoncommit mount options were being printed slightly
differently.
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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In Li Zefan's commit dae7b665cf6d6e6e733f1c9c16cf55547dd37e33,
a combination call of kmalloc() and copy_from_user() is replaced by
memdup_user(). So btrfs_ioctl_resize() doesn't use GFP_NOFS any more.
Signed-off-by: Li Hong <lihong.hi@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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These debugging WARN_ONs make too much console noise during regular
IO failures. An IO failure will still generate a number of messages
as we verify checksums etc, but these two are not needed.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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When a btrfs metadata read fails, the first thing we try to do is find
a good copy on another mirror of the block. If this fails, read_tree_block()
ends up returning a buffer that isn't up to date.
The btrfs btree reading code was reworked to drop locks and repeat
the search when IO was done, but the changes didn't add a check for failed
reads. The end result was looping forever on buffers that were never
going to become up to date.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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This flag is used to decide when we need to send a given file through
the ordered code to make sure it is fully written before a transaction
commits. It was not being properly set to zero when the inode was
being setup.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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cifs_strndup_from_ucs returns NULL on error, not an ERR_PTR
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Locking of irq_desc is now done in irq_set_affinity; don't lock it again
in chip specific set_affinity function.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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When init is started it is SIGNAL_UNKILLABLE. If it were to get an
address error, we would try to send it SIGBUS, but it would be ignored
and the faulting instruction restarted. This results in an endless
loop.
We need to use force_sig() instead so it will actually die and give us
some useful information.
Reported-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This patch modifies parameter of octeon_cvmcount_read() from 'void' to
'struct clocksource *cs', which fixes compile warning for incompatible
parameter type.
Signed-off-by: Coly Li <coly.li@suse.de>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: Ingo Molnar <mingo@elte.hu>
Reviewed-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The inline assembler used on 32-bit kernels was using the "h" constraint
which was considered dangerous and removed for gcc 4.4.0.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Commit 351336929ccf222ae38ff0cb7a8dd5fd5c6236a0 (kernel.org) rsp.
b3594a089f1c17ff919f8f78505c3f20e1f6f8ce (linux-mips.org):
> From: Chris Dearman <chris@mips.com>
> Date: Wed, 19 Sep 2007 00:58:24 +0100
> Subject: [PATCH] [MIPS] Allow setting of the cache attribute at run time.
>
> Slightly tacky, but there is a precedent in the sparc archirecture code.
introduces the variable _page_cachable_default, which defaults to zero and.
is used to create the prototype PTE for __kmap_atomic in
arch/mips/mm/init.c:kmap_init before initialization in
arch/mips/mm/c-r4k.c:coherency_setup, so the default value of 0 will be
used as the CCA of kmap atomic pages which on many processors is not a
defined CCA value and may result in writes to kmap_atomic pages getting
corrupted. Debugged by Jon Fraser (jfraser@broadcom.com).
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Probably nobody does arithmetic on cp0 register values so this has never
bitten.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The RAMROOT function was a successful but non-portable attempt to append
the root filesystem to the end of the kernel image. The preferred and
portable solution is to use an initramfs instead.
Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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I don't think that in 15 years of Linux/MIPS the zero division checking
code generated by gcc by default has ever caught anything.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Otherwise indigestable options might be passed to the host compiler.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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There have been a number of compile problems with the msp71xx configuration
ever since it was included in the linux-mips.org repository. This patch
resolves compilation problems with attempting to reset the board using
non-existent GPIO routines.
This patch has been compile-tested against the current HEAD.
Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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There have been a number of compile problems with the msp71xx configuration
ever since it was included in the linux-mips.org repository. This patch
resolves the "multiple definition of plat_timer_setup" problem, and creates
the required get_c0_compare_int function.
This patch has been compile-tested against the current HEAD.
Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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There was already a define for NMI_OFFSET in asm/sn/addr.h, which now
clashes with linux/hardirq.h. Rename the one in sn/addr.h to fix IP27
builds..
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Fix breakage introduced by 8e19608e8b5c001e4a66ce482edc474f05fb7355.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Beyond the requirements of the architecture standard Cavium also supports
8k and 32k pages.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: David Daney <ddaney@caviumnetworks.com>
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Addition of -fwrapv option in 2.6.29 discloses possible overflow with
signed arithmetics. For example, result of "a * 6 / 12" (int a =
400000000) is 200000000 without -fwrapv but -157913941 with -fwrapv.
Change some variable to unsigned to avoid such overflows.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Synchronize dma_map_page/dma_unmap_page and dma_map_single/dma_unmap_single.
This will reduce unnecessary writebacks and invalidates.
[Ralf: make dma_unmap_page an inline function.]
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This is useful for IDT RC32332, RC32334 and NEC VR5500 processors which do
not implement the full MIPS32 / MIPS64 architecture.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Quoting from Loongson2FUserGuide.pdf:
5.22.1 Hazards
The processor detects most of the pipeline hazards in hardware, including
CP0 hazards and load hazards. No NOP instructions are required to correct
instruction sequences.
Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The compat.h does not need seccomp.h since TIF_32BIT was moved to
thread_info.h
This fixes a build error of 64-bit kernel without CONFIG_SECCOMP.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: : David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The LTP timerfd01 test is failing (blocking forever) on the 32-bit ABIs. We
need to use the compat_* wrappers for these system calls.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Introduced by 99aa5029937ee926e3b249369e208d7013cd381b.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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I have taken Wu Zhangjin's and Philippe Vachon's version as references,
did a little modification and tested on 16K page size kernel. It works
well.
Unfornately although it already has defined cpu_has_dc_aliases as 1, 4k
page size still not working. More work needed here.
Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The following symbols are needlessly defined global:
default_mode
default_var
gbe_mem_phys
gbe_turn_off
gbefb_exit
gbefb_init
gbefb_setup
This error was noticed by namespacecheck when compiling ip32_defconfig.
This patch makes the symbols static.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The following symbols are needlessly defined global: cpuerr_irq and
memerr_irq. This patch makes the symbols static.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The file arch/mips/sgi-ip32/ip32-berr.c needlessly defines the function
ip32_be_handler() as global, and this patch makes it static.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The file arch/mips/mm/sc-rm7k.c needlessly defines two global symbols:
rm7k_sc_ops
rm7k_tcache_enabled
This patch makes these symbols static.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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au1xxx_power_dev_t? is never defined; get rid of all PM stuff as well
since it is not in the driver source anyway.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Commit 779e7d41ad004946603da139da99ba775f74cb1c created a name collision
in SMTC builds. The attached patch corrects this in a a
not-too-terribly-ugly manner. Note that the SMTC case has to come
first, because CEVT_R4K will also be true.
Signed-off-by: Kevin D. Kissell <kevink@paralogos.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Kevin D. Kissell <kevink@paralogos.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6:
xtensa: Fix linker script to include .literal sections
xtensa: update s6105_defconfig for ccount calibration
xtensa: implement ccount calibration for s6000
xtensa: fix wrong extern declaration renamed in code using it
xtensa: register gpio chip before use
xtensa: always use correct stack pointer for stack traces
xtensa: Fix checksum header file
xtensa: Fix architecture specific Kconfig
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