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switch_mm() changes the mm state and does a tsb_context_switch()
first, then we do the cpu register state switch which changes
current_thread_info() and current().
So it's safer to check the PGD physical address stored in the
trap block (which will be updated by the tsb_context_switch() in
switch_mm()) than current->active_mm.
Technically we should never run here in between those two
updates, because interrupts are disabled during the entire
context switch operation. But some day we might like to leave
interrupts enabled during the context switch and this change
allows that to happen without any surprises.
Signed-off-by: David S. Miller <davem@davemloft.net>
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* master.kernel.org:/home/rmk/linux-2.6-serial:
[SERIAL] Allow 8250 PCI, PNP, GSC and HP300 support to be disabled
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Allow the 8250 probe modules to be disabled if we're building for
with EMBEDDED enabled. This reduces the kernel size by not including
unnecessary probe module support.
Original idea from Matt Mackall for PCI only, expanded to others by
rmk.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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* master.kernel.org:/home/rmk/linux-2.6-mmc:
[MMC] Pass -DDEBUG on compiler command line if MMC_DEBUG selected
[MMC] Add OMAP MMC host driver
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Rather than each driver test MMC_DEBUG itself, and define DEBUG,
pass it in via the makefile instead.
Fix drivers to use pr_debug() where appropriate, and avoid defining
a DEBUG() macro.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Adds OMAP MMC driver.
Signed-off-by: Juha Yrjölä <juha.yrjola@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Carlos Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 3424/2: ixp23xx: fix uncompress.h for recent CRLF decompressor change
[ARM] 3434/1: pxa i2s amsl define
[ARM] 3425/1: xsc3: need to include pgtable-hwdef.h
[ARM] Allow un-muxed syscalls to be available for everyone
[ARM] 3420/1: Missing clobber in example code
[ARM] nommu: fixups for the exception vectors
[ARM] nommu: add nommu specific Kconfig and MMUEXT variable in Makefile
[ARM] nommu: start-up code
[ARM] nommu: MPU support in boot/compressed/head.S
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Patch from Lennert Buytenhek
Adapt ixp23xx uncompress.h to a081568d7016061ed848696984e3acf1ba0b3054.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Patch from Marc-Andre Hebert
The error concerns a bit mask define for the AMSL bit of the SACR1 register in the 2.6 kernel tree. The AMSL is bit 0 and it was defined as so in the 2.4 kernel tree but it is inccorrectly set as bit 1 (a reserved bit) in the 2.6 kernel tree.
Signed-off-by: Marc-Andre Hebert <marcandreh@humanware.ca>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Patch from Lennert Buytenhek
Adapt xsc3 to the changes in 74945c8616a50074277e18641baaae7464006766
(xsc3 was written before but merged after the latter went in.)
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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It's been a while since the un-muxed socket and ipc syscalls were
introduced, so make the unistd.h number definitions visible for
non-EABI as well as EABI.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Patch from Paul Brook
The example code in the source documentation for __kernel_dmb
clobbers r0 but doesn't list it the asm clobber list.
Signed-off-by: Paul Brook <paul@codesourcery.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The high page vector (0xFFFF0000) does not supported in nommu mode.
This patch allows the vectors to be 0x00000000 or the begining of DRAM
in nommu mode.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch adds Kconfig-nommu for noMMU specific configurations
and MMUEXT variable into Makefile.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch adds nommu version start-up code head-nommu.S.
The common part of the start-up codes is moved to head-common.S.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch adds MPU support in boot/compressed/head.S.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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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] Avoid "u64 foo : 32;" for gcc3 vs. gcc4 compatibility
[IA64] Export cpu cache info by sysfs
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gcc3 thinks that a 32-bit field of a u64 type is itself a u64, so
should be printed with "%ld". gcc4 thinks it needs just "%d".
Make both versions happy by avoiding this construct.
Signed-off-by: Tony Luck <tony.luck@intel.com>
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The patch exports 8 attributes of cpu cache info under
/sys/devices/system/cpu/cpuX/cache/indexX:
1) level
2) type
3) coherency_line_size
4) ways_of_associativity
5) size
6) shared_cpu_map
7) attributes
8) number_of_sets: number_of_sets=size/ways_of_associativity/coherency_line_size.
Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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* master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
[CIFS] Fix typo in earlier cifs_unlink change and protect one
[CIFS] Incorrect signature sent on SMB Read
[CIFS] Fix unlink oops when indirectly called in rename error path
[CIFS] Fix two remaining coverity scan tool warnings.
[CIFS] Set correct lock type on new posix unlock call
[CIFS] Upate cifs change log
[CIFS] Fix slow oplock break response when mounts to different
[CIFS] Workaround various server bugs found in testing at connectathon
[CIFS] Allow fallback for setting file size to Procom SMB server when
[CIFS] Make POSIX CIFS Extensions SetFSInfo match exactly what we want
[CIFS] Move noisy debug message (triggerred by some older servers) from
[CIFS] Use correct pid on new cifs posix byte range lock call
[CIFS] Add posix (advisory) byte range locking support to cifs client
[CIFS] CIFS readdir perf optimizations part 1
[CIFS] Free small buffers earlier so we exceed the cifs
[CIFS] Fix large (ie over 64K for MaxCIFSBufSize) buffer case for wrapping
[CIFS] Convert remaining places in fs/cifs from
[CIFS] SessionSetup cleanup part 2
[CIFS] fix compile error (typo) and warning in cifssmb.c
[CIFS] Cleanup NTLMSSP session setup handling
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extra path.
Since cifs_unlink can also be called from rename path and there
was one report of oops am making the extra check for null inode.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Fixes Samba bug 3621 and kernel.org bug 6147
For servers which require SMB/CIFS packet signing, we were sending the
wrong signature (all zeros) on SMB Read request. The new cifs routine
to do signatures across an iovec was not complete - and SMB Read, unlike
the new SMBWrite2, did not fall back to the older routine (ie use
SendReceive vs. the more efficient SendReceive2 ie used the older
cifs_sign_smb vs. the disabled cifs_sign_smb2) for calculating signatures.
This finishes up cifs_sign_smb2/cifs_calc_signature2 so that the callers
of SendReceive2 can get SMB/CIFS packet signatures.
Now that cifs_sign_smb2 is supported, we could start using it in
the write path but this smaller fix does not include the change
to use SMBWrite2 when signatures are required (which when enabled
will make more Writes more efficient and alloc less memory).
Currently Write2 is only used when signatures are not
required at the moment but after more testing we will enable
that as well).
Thanks to James Slepicka and Sam Flory for initial investigation.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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under heavy stress.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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servers have same tid and we try to match oplock break to wrong tid.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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- slow down negprot 1ms during mount when RFC1001 over port 139
to give buggy servers time to clear sess_init
- remap some plausible but incorrect SMB return codes to the
right ones in truncate and hardlink paths
Signed-off-by: Steve French <sfrench@us.ibm.com>
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returns error invalid level
Signed-off-by: Steve French <sfrench@us.ibm.com>
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not just the posix path feature.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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error to informational unless frame is rejected.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Samba (version 3) server support for this is also currently being
done. This client code is in an experimental path (requires enabling
/proc/fs/cifs/Experimental) while it is being tested.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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small req buffer pool less often.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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bcc on read response and for wrapping sessionsetup maxbufsize field
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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kmalloc/memset to simpler kzalloc usage
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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The cifs session setup code has three cases, and a fourth for backlevel
LANMAN2 style session setup needed to be added. This new session setup
implmentation will eventually replace the other three and should be
easier to read while fixing a few minor problems (not setting
the LARGE READ/WRITEX flags when NTLMSSP was negotiated for example) and
adding support for NTLMv2 (which will be added with the next patch. In the
meantime, this code is marked in an CONFIG_CIFS_EXPERIMENTAL block and will
not be turned on by default until it is tested against more server types.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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