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Pavel Machek [Fri, 31 Mar 2006 10:29:51 +0000 (02:29 -0800)]
[PATCH] Add chip used in collie to jedec_probe
This adds flash chip used in Sharp Zaurus sl5500 (collie) to jedec_probe.
Values work for read-only access, but I have not figured out how to do
read-write.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Eric Sesterhenn [Fri, 31 Mar 2006 10:29:50 +0000 (02:29 -0800)]
[PATCH] Dead code in mtd/maps/pci.c
This fixes coverity bug #12. The first two gotos in the function still
have the initial value for mtd set. And the third goto just triggers for
!mtd
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Fri, 31 Mar 2006 10:29:49 +0000 (02:29 -0800)]
[PATCH] Kill ifdefs in mtdcore.c
Kill unneccessary ifdefs in mtdcore.c.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Eric Sesterhenn / snakebyte [Fri, 31 Mar 2006 10:29:47 +0000 (02:29 -0800)]
[PATCH] Fix debug statement in inftlcore.c
Fix a copy\a/paste bug found by cpminer inside the inftlcore.c file
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Acked-by: Greg Ungerer <gerg@snapgear.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Atsushi Nemoto [Fri, 31 Mar 2006 10:29:46 +0000 (02:29 -0800)]
[PATCH] mtd cmdlinepart: allow zero offset value
Current cmdlinepart.c uses offset value 0 to specify a continuous
partition. This prevents creating a second partition starting at 0.
For example, I can split 4MB device using "mtdparts=id:2M,2M", but I can
not do "mtdparts=id:2M@2M,2M@0" to swap mtd0 and mtd1.
This patch introduces special OFFSET_CONTINUOUS value for a continuous
partition and allows 0 for offset value.
Also this patch replaces 0xffffffff with UINT_MAX for SIZE_REMAINING.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Tobias Klauser [Fri, 31 Mar 2006 10:29:45 +0000 (02:29 -0800)]
[PATCH] drivers/mtd: Use ARRAY_SIZE macro
Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove
duplicates of the macro.
Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Adrian Bunk [Fri, 31 Mar 2006 10:29:43 +0000 (02:29 -0800)]
[PATCH] MTD_NAND_SHARPSL and MTD_NAND_NANDSIM should be tristate's
MTD_NAND=m and MTD_NAND_SHARPSL=y or MTD_NAND_NANDSIM=y are illegal
combinations that mustn't be allowed.
This patch fixes this bug by making MTD_NAND_SHARPSL and MTD_NAND_NANDSIM
tristate's.
Additionally, it fixes some whitespace damage at these options.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Acked-by: "Artem B. Bityutskiy" <dedekind@yandex.ru>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Adrian Bunk [Fri, 31 Mar 2006 10:29:42 +0000 (02:29 -0800)]
[PATCH] drivers/mtd/: small cleanups
- chips/sharp.c: make two needlessly global functions static
- move some declarations to a header file where they belong to
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Ingo Molnar [Fri, 31 Mar 2006 10:29:41 +0000 (02:29 -0800)]
[PATCH] sem2mutex: drivers/mtd/
Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Ingo Molnar [Fri, 31 Mar 2006 10:29:40 +0000 (02:29 -0800)]
[PATCH] sem2mutex: mtd/doc2000.c
Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andrew Morton [Fri, 31 Mar 2006 10:29:39 +0000 (02:29 -0800)]
[PATCH] m25p80: printk warning fix
drivers/mtd/devices/m25p80.c: In function `m25p80_erase':
drivers/mtd/devices/m25p80.c:189: warning: signed size_t format, different type arg (arg 6)
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jeff Garzik [Fri, 31 Mar 2006 04:06:13 +0000 (23:06 -0500)]
[PATCH] splice exports
Woe be unto he who builds their filesystems as modules.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
[ Obscure quote from the infamous geek bible? ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Linus Torvalds [Thu, 30 Mar 2006 23:04:13 +0000 (15:04 -0800)]
Merge git://git./linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: (24 commits)
[PARISC] Fix double free when removing HIL drivers
[PARISC] Add atomic_sub_and_test
[PARISC] Enabled some NLS modules in a500, b180 and c3000 defconfigs
[PARISC] Kill duplicated EXPORT_SYMBOL warnings
[PARISC] Move ioremap EXPORT_SYMBOL from parisc_ksyms.c
[PARISC] Make local_t use atomic_long_t
[PARISC] Update defconfigs
[PARISC] Add PREEMPT support
[PARISC] More useful readwrite lock helpers
[PARISC] Convert HIL drivers to use input_allocate_device
[PARISC] Fixup CONFIG_EISA a bit
[PARISC] getsockopt should be ENTRY_COMP
[PARISC] Remove obsolete CONFIG_DEBUG_IOREMAP
[PARISC] Temporary FIXME for ioremapping EISA regions
[PARISC] Enable ioremap functionality unconditionally
[PARISC] Fix stifb with IOREMAP and a 64-bit kernel
[PARISC] Add CONFIG_HPPA_IOREMAP to conditionally enable ioremap
[PARISC] Add STRICT_MM_TYPECHECKS
[PARISC] Fix IOREMAP with a 64-bit kernel
[PARISC] Add parisc implementation of flush_kernel_dcache_page()
...
Linus Torvalds [Thu, 30 Mar 2006 22:32:38 +0000 (14:32 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/mad: RMPP support for additional classes
IB/mad: include GID/class when matching receives
IB/mthca: Fix section mismatch problems
IPoIB: Fix oops with raw sockets
IB/mthca: Fix check of size in SRQ creation
IB/srp: Fix unmapping of fake scatterlist
Linus Torvalds [Thu, 30 Mar 2006 22:29:20 +0000 (14:29 -0800)]
Merge branch 'upstream-linus' of /linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[PATCH] sata_mv: three bug fixes
[PATCH] libata: ata_dev_init_params() fixes
[PATCH] libata: Fix interesting use of "extern" and also some bracketing
[PATCH] libata: Simplex and other mode filtering logic
[PATCH] libata - ATA is both ATA and CFA
[PATCH] libata: Add ->set_mode hook for odd drivers
[PATCH] libata: BMDMA handling updates
[PATCH] libata: kill trailing whitespace
[PATCH] libata: add FIXME above ata_dev_xfermask()
[PATCH] libata: cosmetic changes in ata_bus_softreset()
[PATCH] libata: kill E.D.D.
Linus Torvalds [Thu, 30 Mar 2006 22:26:27 +0000 (14:26 -0800)]
Merge branch 'drm-patches' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: remove drm_{alloc,free}_pages
drm: sis fix compile warning
drm: add new radeon PCI ids..
drm: read breadcrumb in IRQ handler
drm: fixup i915 breadcrumb read/write
drm: remove pointless checks in radeon_state
drm: fixup improper cast.
drm: rationalise some pci ids
drm: Add general-purpose packet for manipulating scratch registers (r300)
drm: rework radeon memory map (radeon 1.23)
drm: update r300 register names
drm: fixup PCI DMA support
Linus Torvalds [Thu, 30 Mar 2006 20:38:18 +0000 (12:38 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] ioremap() should prefer WB over UC
[IA64] Add __mca_table to the DISCARD list in gate.lds
[IA64] Move __mca_table out of the __init section
[IA64] simplify some condition checks in iosapic_check_gsi_range
[IA64] correct some messages and fixes some minor things
[IA64-SGI] fix for-loop in sn_hwperf_geoid_to_cnode()
[IA64-SGI] sn_hwperf use of num_online_cpus()
[IA64] optimize flush_tlb_range on large numa box
[IA64] lazy_mmu_prot_update needs to be aware of huge pages
Jens Axboe [Thu, 30 Mar 2006 13:16:46 +0000 (15:16 +0200)]
[PATCH] splice: add support for SPLICE_F_MOVE flag
This enables the caller to migrate pages from one address space page
cache to another. In buzz word marketing, you can do zero-copy file
copies!
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jens Axboe [Thu, 30 Mar 2006 13:15:30 +0000 (15:15 +0200)]
[PATCH] Introduce sys_splice() system call
This adds support for the sys_splice system call. Using a pipe as a
transport, it can connect to files or sockets (latter as output only).
From the splice.c comments:
"splice": joining two ropes together by interweaving their strands.
This is the "extended pipe" functionality, where a pipe is used as
an arbitrary in-memory buffer. Think of a pipe as a small kernel
buffer that you can use to transfer data from one end to the other.
The traditional unix read/write is extended with a "splice()" operation
that transfers data buffers to or from a pipe buffer.
Named by Larry McVoy, original implementation from Linus, extended by
Jens to support splicing to files and fixing the initial implementation
bugs.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Kyle McMartin [Thu, 30 Mar 2006 16:47:32 +0000 (11:47 -0500)]
[PARISC] Fix double free when removing HIL drivers
On Thu, Mar 30, 2006 at 08:31:02AM -0500, Dmitry Torokhov wrote:
> Don't do that, its double free. input_unregister_device() normally
> causes release() to be called and free the device. input_free_device
> is only to be called when input_register_device has not been called or
> failed.
>
> Plus you might want to unregister device after closing serio port,
> otherwise your interrupt routine might be referencing already freed
> memory.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Kyle McMartin [Thu, 30 Mar 2006 00:47:32 +0000 (19:47 -0500)]
[PARISC] Add atomic_sub_and_test
Define atomic_sub_and_test to fix build failures.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Stuart Brady [Wed, 29 Mar 2006 20:11:25 +0000 (13:11 -0700)]
[PARISC] Enabled some NLS modules in a500, b180 and c3000 defconfigs
With c3000_defconfig and b180_defconfig, FAT couldn't be used
because no NLS modules were built.
Signed-off-by: Stuart Brady <sdb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Kyle McMartin [Wed, 29 Mar 2006 22:21:12 +0000 (15:21 -0700)]
[PARISC] Kill duplicated EXPORT_SYMBOL warnings
Some symbols are exported both in parisc_ksyms.c, and at their
definition site. Nuke the redundant EXPORT_SYMBOL in ksyms to quiet
warnings when vmlinux is linked.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Kyle McMartin [Wed, 29 Mar 2006 22:18:32 +0000 (15:18 -0700)]
[PARISC] Move ioremap EXPORT_SYMBOL from parisc_ksyms.c
Move ioremap/iounmap EXPORT_SYMBOL to ioremap.c where they belong.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Kyle McMartin [Wed, 29 Mar 2006 14:04:49 +0000 (07:04 -0700)]
[PARISC] Make local_t use atomic_long_t
As done in asm-generic/local.h in mainline. Otherwise local_t was 32-bit
even on a 64-bit kernel.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Sun, 26 Mar 2006 18:19:46 +0000 (11:19 -0700)]
[PARISC] Update defconfigs
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Kyle McMartin [Sat, 25 Mar 2006 04:24:21 +0000 (21:24 -0700)]
[PARISC] Add PREEMPT support
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Kyle McMartin [Sat, 25 Mar 2006 04:22:02 +0000 (21:22 -0700)]
[PARISC] More useful readwrite lock helpers
spinlock.c needs _can_lock helpers. Rewrite _is_locked helpers to be
_can_lock helpers.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Sun, 26 Mar 2006 14:41:55 +0000 (07:41 -0700)]
[PARISC] Convert HIL drivers to use input_allocate_device
Convert HIL drivers to use input_allocate_device() - avoids crashes.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Sun, 26 Mar 2006 08:54:16 +0000 (01:54 -0700)]
[PARISC] Fixup CONFIG_EISA a bit
Fix up some ISA/EISA stuff.
(Note: isa_ accessors have been removed from asm/io.h)
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Kyle McMartin [Sun, 19 Feb 2006 18:02:50 +0000 (11:02 -0700)]
[PARISC] getsockopt should be ENTRY_COMP
compat_sys_getsockopt exists, so we should use that, instead of directly
using sys_getsockopt on 64-bit compiles.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Thu, 23 Mar 2006 08:07:00 +0000 (01:07 -0700)]
[PARISC] Remove obsolete CONFIG_DEBUG_IOREMAP
Remove CONFIG_DEBUG_IOREMAP, it's now obsolete and won't work anyway.
Remove it from lib/KConfig since it was only available on parisc.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Thu, 23 Mar 2006 07:40:10 +0000 (00:40 -0700)]
[PARISC] Temporary FIXME for ioremapping EISA regions
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Thu, 23 Mar 2006 07:32:46 +0000 (00:32 -0700)]
[PARISC] Enable ioremap functionality unconditionally
Enable CONFIG_HPPA_IOREMAP by default and remove all now unnecessary code.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Wed, 22 Mar 2006 22:19:46 +0000 (15:19 -0700)]
[PARISC] Fix stifb with IOREMAP and a 64-bit kernel
Kill various warnings when built using ioremap.
Remove stifb_{read,write} functions, which are now obsolete (and stack abusers!)
Disable stifb mmap() functionality on a 64-bit kernel, it will crash the
machine.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Tue, 7 Mar 2006 21:12:13 +0000 (14:12 -0700)]
[PARISC] Add CONFIG_HPPA_IOREMAP to conditionally enable ioremap
Instead of making it a #define in asm/io.h, allow user to select
to turn on IOREMAP from the config menu.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Thu, 23 Mar 2006 22:48:15 +0000 (15:48 -0700)]
[PARISC] Add STRICT_MM_TYPECHECKS
Add STRICT_MM_TYPECHECKS to page.h as other architectures do.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Tue, 21 Mar 2006 23:01:15 +0000 (16:01 -0700)]
[PARISC] Fix IOREMAP with a 64-bit kernel
We were only copying 32-bits of the PTE/PFN, not the full 52-bits.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
James Bottomley [Wed, 22 Mar 2006 16:42:04 +0000 (09:42 -0700)]
[PARISC] Add parisc implementation of flush_kernel_dcache_page()
We need to do a little renaming of our original syntax because
of the difference in arguments.
Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
James Bottomley [Wed, 22 Mar 2006 15:28:59 +0000 (08:28 -0700)]
[PARISC] Add parisc implementation of flush_anon_page()
This should now allow SG_IO and fuse to function correctly on our
platform.
Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Mon, 27 Mar 2006 19:52:15 +0000 (12:52 -0700)]
[PARISC] I/O-Space must be ioremap_nocache()'d
Addresses in F-space must be accessed uncached on most parisc machines.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Helge Deller [Tue, 7 Mar 2006 20:34:45 +0000 (13:34 -0700)]
[PARISC] Enable free_initrd_mem()
I think it's time to enable free_initrd_mem() again...
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Thibaut VARENE [Sat, 4 Feb 2006 01:06:30 +0000 (18:06 -0700)]
[PARISC] Clarify pdc_stable license terms
pdc_stable.c is explicitly licensed under GPL version 2.
Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Bjorn Helgaas [Thu, 30 Mar 2006 16:53:39 +0000 (09:53 -0700)]
[IA64] ioremap() should prefer WB over UC
efi_memmap_init() collects full granules of WB memory, without
regard for whether they also support UC. So in order for ioremap()
to work for main memory, it must prefer WB mappings when possible.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Jes Sorensen [Thu, 30 Mar 2006 15:13:22 +0000 (10:13 -0500)]
[IA64] Add __mca_table to the DISCARD list in gate.lds
Add __mca_table to the DISCARD list for the gate.lds linker script to
avoid broken linker references when linking the final vmlinux file.
Also add comment to include/asm-ia64/asmmacros.h to avoid anyone else
hitting this problem in the future.
Credits to James Bottomley <James.Bottomley@SteelEye.com> for spotting
the DISCARD list in gate.lds.S
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Hal Rosenstock [Wed, 29 Mar 2006 00:40:04 +0000 (16:40 -0800)]
IB/mad: RMPP support for additional classes
Add RMPP support for additional management classes that support it.
Also, validate RMPP is consistent with management class specified.
Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Jack Morgenstein [Wed, 29 Mar 2006 00:39:07 +0000 (16:39 -0800)]
IB/mad: include GID/class when matching receives
Received responses are currently matched against sent requests based
on TID only. According to the spec, responses should match based on
the combination of TID, management class, and requester LID/GID.
Without the additional qualification, an agent that is responding to
two requests, both of which have the same TID, can match RMPP ACKs
with the incorrect transaction. This problem can occur on the SM node
when responding to SA queries.
Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Jeff Garzik [Thu, 30 Mar 2006 00:43:31 +0000 (19:43 -0500)]
Merge branch 'mv-merge'
Conflicts:
drivers/scsi/sata_mv.c
Mark Lord [Wed, 29 Mar 2006 14:50:31 +0000 (09:50 -0500)]
[PATCH] sata_mv: three bug fixes
(1) A DMA transfer size of 0x10000 was not being written
as 0x0000 in the PRDs. Fixed.
(1) The DEV_IRQ interrupt cause bit happens spuriously
during EDMA operation, and was not being ignored by the driver.
This led to various "drive busy" errors being reported,
with associated unpredictable behaviour. Fixed.
(2) If a SATA or PCI interrupt was received with no outstanding
command, the interrupt handler still attempted to invoke
ata_qc_complete(), triggering assert()/BUG_ON() behaviour
elsewhere in libata. Fixed.
The driver still has issues with confusion after error-recovery,
but should now be reliable in the absence of drive errors.
I will be looking more into the error-handling bugs next.
Signed-Off-By: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Albert Lee [Mon, 27 Mar 2006 08:39:18 +0000 (16:39 +0800)]
[PATCH] libata: ata_dev_init_params() fixes
ata_dev_init_params() fixes:
- Get the "heads" and "sectors" parameters from caller instead of implicitly from dev->id[].
- Return AC_ERR_INVALID instead of 0 if an invalid parameter is found
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Alan Cox [Mon, 27 Mar 2006 18:01:32 +0000 (19:01 +0100)]
[PATCH] libata: Fix interesting use of "extern" and also some bracketing
Signed-off-by: Alan Cox <alan@redhat.com>
Last of the set, just clean up some oddments. Assuming the whole set is
now ok then the remaining differences are the setup of PIO_0 at reset
and the ->data_xfer method.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Alan Cox [Mon, 27 Mar 2006 17:58:20 +0000 (18:58 +0100)]
[PATCH] libata: Simplex and other mode filtering logic
Add a field to the host_set called 'flags' (was host_set_flags changed
to suit Jeff)
Add a simplex_claimed field so we can remember who owns the DMA channel
Add a ->mode_filter() hook to allow drivers to filter modes
Add docs for mode_filter and set_mode
Filter according to simplex state
Filter cable in core
This provides the needed framework to support all the mode rules found
in the PATA world. The simplex filter deals with 'to spec' simplex DMA
systems found in older chips. The cable filter avoids duplicating the
same rules in each chip driver with PATA. Finally the mode filter is
neccessary because drive/chip combinations have errata that forbid
certain modes with some drives or types of ATA object.
Drive speed setup remains per channel for now and the filters now use
the framework Tejun put into place which cleans them up a lot from the
older libata-pata patches.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Alan Cox [Mon, 27 Mar 2006 17:49:19 +0000 (18:49 +0100)]
[PATCH] libata - ATA is both ATA and CFA
I think this is still needed with the new probe code (which btw seems to
be missing docs in upstream ?).
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Alan Cox [Mon, 27 Mar 2006 17:46:37 +0000 (18:46 +0100)]
[PATCH] libata: Add ->set_mode hook for odd drivers
Some hardware doesn't want the usual mode setup logic running. This
allows the hardware driver to replace it for special cases in the least
invasive way possible.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Alan Cox [Mon, 27 Mar 2006 17:42:40 +0000 (18:42 +0100)]
[PATCH] libata: BMDMA handling updates
This is the minimal patch set to enable the current code to be used with
a controller following SFF (ie any PATA and early SATA controllers)
safely without crashes if there is no BMDMA area or if BMDMA is not
assigned by the BIOS for some reason.
Simplex status is recorded but not acted upon in this change, this isn't
a problem with the current drivers as none of them are for simplex
hardware. A following diff will deal with that.
The flags in the probe structure remain ->host_set_flags although Jeff
asked me to rename them, simply because the rename would break the usual
Linux rules that old code should break when there are changes. not
compile and run and then blow up/eat your computer/etc. Renaming this
later is a trivial exercise once a better name is chosen.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Lennert Buytenhek [Wed, 29 Mar 2006 13:12:44 +0000 (15:12 +0200)]
[PATCH] ixp2000: fix gcc4 breakage
gcc4 doesn't like us declaring a static function inside another
function. We can do away with this construct altogether and use
BUILD_BUG_ON() instead (idea from Andi Kleen.)
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Gary Zambrano [Tue, 28 Mar 2006 22:57:38 +0000 (14:57 -0800)]
[PATCH] b44: ensure valid mac addr
Added code to check for invalid MAC address from eeprom or user input.
Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Linas Vepstas [Tue, 28 Mar 2006 22:36:23 +0000 (16:36 -0600)]
[PATCH] Janitor: drivers/net/pcnet32: fix incorrect comments
The comments concerning how the pcnet32 ethernet device driver selects
the MAC addr to use are incorrect. A recent patch (in the last 3 months)
changed how the code worked, but did not change the comments.
Side comment: the new behaviour is good; I've got a pcnet32 card which
powers up with garbage in the CSR's, and a good MAC addr in the PROM.
Signed-off-by: Linas Vepstas <linas@linas.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Arthur Othieno [Tue, 28 Mar 2006 22:09:01 +0000 (14:09 -0800)]
[PATCH] net: remove CONFIG_NET_CBUS conditional for NS8390
Don't bother testing for CONFIG_NET_CBUS ("NEC PC-9800 C-bus cards"); it went
out with the rest of PC98 subarch.
Signed-off-by: Arthur Othieno <apgo@patchbomb.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Mark Brown [Tue, 28 Mar 2006 22:08:55 +0000 (14:08 -0800)]
[PATCH] natsemi: Support oversized EEPROMs
The natsemi chip can have a larger EEPROM attached than it itself uses for
configuration. This patch adds support for user space access to such an
EEPROM.
Signed-off-by: Mark Brown <broonie@sirena.org.uk>
Cc: Tim Hockin <thockin@hockin.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jens Osterkamp [Mon, 27 Mar 2006 15:16:36 +0000 (17:16 +0200)]
[PATCH] spidernet : enable tx checksum offloading by default
This enables TX checksum offloading for the spidernet driver by default.
Signed-off-by: Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jay Vosburgh [Mon, 27 Mar 2006 21:27:43 +0000 (13:27 -0800)]
[PATCH] bonding: support carrier state for master
Add support for the bonding master to specify its carrier state
based upon the state of the slaves. For 802.3ad, the bond is up if
there is an active, parterned aggregator. For other modes, the bond is
up if any slaves are up. Updates driver version to 3.0.3.
Based on a patch by jamal <hadi@cyberus.ca>.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jeff Garzik [Wed, 29 Mar 2006 22:30:19 +0000 (17:30 -0500)]
Merge branch 'upstream' of git://git./linux/kernel/git/linville/wireless-2.6
Randy Dunlap [Mon, 27 Mar 2006 20:26:12 +0000 (12:26 -0800)]
[PATCH] acenic: fix section mismatches
Fix section mismatches in acenic driver:
WARNING: drivers/net/acenic.o - Section mismatch: reference to .init.data:tigon2FwText from .text between 'acenic_probe_one' (at offset 0x2409) and 'ace_interrupt'
WARNING: drivers/net/acenic.o - Section mismatch: reference to .init.data:tigon2FwRodata from .text between 'acenic_probe_one' (at offset 0x2422) and 'ace_interrupt'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jens Osterkamp [Tue, 28 Mar 2006 13:59:55 +0000 (15:59 +0200)]
[PATCH] spidernet : reduce console spam
This patch reduces the message level of the RX ram full messages
from err to debug to prevent spamming the console leaving it in the
logfiles though.
From: Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Roger Luethi [Tue, 28 Mar 2006 18:53:56 +0000 (20:53 +0200)]
[PATCH] via-rhine: link state fix
Problems with link state detection have been reported several times in the
past months.
Denis Vlasenko did all the work tracking it down. Jeff Garzik suggested the
proper place for the fix.
When using the mii library, the driver needs to check mii->force_media
and set dev->state accordingly.
Signed-off-by: Roger Luethi <rl@hellgate.ch>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Komuro [Sat, 25 Mar 2006 22:31:55 +0000 (07:31 +0900)]
[PATCH] axnet_cs.c : add hardware multicast support
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo [Sat, 25 Mar 2006 05:28:57 +0000 (14:28 +0900)]
[PATCH] libata: kill trailing whitespace
Kill trailing whitespace.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jeff Garzik [Wed, 29 Mar 2006 22:18:49 +0000 (17:18 -0500)]
Merge branch 'master'
Gary Zambrano [Wed, 29 Mar 2006 22:12:05 +0000 (17:12 -0500)]
b44: fix force mac address before ifconfig up
Initializing the b44 MAC & PCI functional blocks in the controller must
occur inside init_one(). This will allow access to the MAC registers.
The controller was being powered up in b44_open() which would not allow
access to the registers before ifconfig was up.
Philip Kohlbecher found this bug.
Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Linus Torvalds [Wed, 29 Mar 2006 19:29:33 +0000 (11:29 -0800)]
Merge /pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[NETFILTER]: Rename init functions.
[TCP]: Fix RFC2465 typo.
[INET]: Introduce tunnel4/tunnel6
[NET]: deinline 200+ byte inlines in sock.h
[ECONET]: Convert away from SOCKOPS_WRAPPED
[NET]: Fix ipx/econet/appletalk/irda ioctl crashes
[NET]: Kill Documentation/networking/TODO
[TG3]: Update version and reldate
[TG3]: Skip timer code during full lock
[TG3]: Speed up SRAM access
[TG3]: Fix PHY loopback on 5700
[TG3]: Fix bug in 40-bit DMA workaround code
[TG3]: Fix probe failure due to invalid MAC address
Linus Torvalds [Wed, 29 Mar 2006 19:28:30 +0000 (11:28 -0800)]
Merge git://git./linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (67 commits)
[PATCH] powerpc: Remove oprofile spinlock backtrace code
[PATCH] powerpc: Add oprofile calltrace support to all powerpc cpus
[PATCH] powerpc: Add oprofile calltrace support
[PATCH] for_each_possible_cpu: ppc
[PATCH] for_each_possible_cpu: powerpc
[PATCH] lock PTE before updating it in 440/BookE page fault handler
[PATCH] powerpc: Kill _machine and hard-coded platform numbers
ppc: Fix compile error in arch/ppc/lib/strcase.c
[PATCH] git-powerpc: WARN was a dumb idea
[PATCH] powerpc: a couple of trivial compile warning fixes
powerpc: remove OCP references
powerpc: Make uImage default build output for MPC8540 ADS
powerpc: move math-emu over to arch/powerpc
powerpc: use memparse() for mem= command line parsing
ppc: fix strncasecmp prototype
[PATCH] powerpc: make ISA floppies work again
[PATCH] powerpc: Fix some initcall return values
[PATCH] powerpc: Workaround for pSeries RTAS bug
[PATCH] spufs: fix __init/__exit annotations
[PATCH] powerpc: add hvc backend for rtas
...
Russ Anderson [Wed, 29 Mar 2006 17:31:23 +0000 (11:31 -0600)]
[IA64] Move __mca_table out of the __init section
Move __mca_table out of the __init section.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Roland Dreier [Wed, 29 Mar 2006 17:36:46 +0000 (09:36 -0800)]
IB/mthca: Fix section mismatch problems
Quite a few cleanup functions in mthca were marked as __devexit.
However, they could also be called from error paths during
initialization, so they cannot be marked that way. Just delete all of
the incorrect annotations.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Roland Dreier [Wed, 29 Mar 2006 17:36:46 +0000 (09:36 -0800)]
IPoIB: Fix oops with raw sockets
ipoib_hard_header() needs to handle the case that daddr is NULL. This
can happen when packets are injected via a raw socket, and IPoIB
shouldn't oops in this case.
Reported by Anton Blanchard <anton@samba.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Jack Morgenstein [Sun, 26 Mar 2006 15:01:12 +0000 (17:01 +0200)]
IB/mthca: Fix check of size in SRQ creation
The previous patch for Tavor broke MemFree logic.
The driver should perform limit check only for Tavor. For MemFree,
the check is incorrect, since ds (WQE stride) is always a power-of-2
(although the max_desc_size may not be).
In Tavor, however, WQE stride and desc_size are the same, and are not
necessarily power-of-2. The check was really for the WQE stride (and
it Tavor, we use max_desc_size for the stride).
Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Roland Dreier [Wed, 29 Mar 2006 17:36:45 +0000 (09:36 -0800)]
IB/srp: Fix unmapping of fake scatterlist
The recently merged patch to create a fake scatterlist for non-SG SCSI
commands had a bug: the driver ended up doing dma_unmap_sg() on a
scatterlist scmnd->request_buffer rather than the fake scatter list it
created. Fix this so that the driver unmaps the same thing it maps.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Linus Torvalds [Wed, 29 Mar 2006 16:55:36 +0000 (08:55 -0800)]
Merge git://oss.sgi.com:8090/oss/git/xfs-2.6
* git://oss.sgi.com:8090/oss/git/xfs-2.6:
[XFS] Cleanup in XFS after recent get_block_t interface tweaks.
[XFS] Remove unused/obsoleted function: xfs_bmap_do_search_extents()
[XFS] A change to inode chunk allocation to try allocating the new chunk
Fixes a regression from the recent "remove ->get_blocks() support"
[XFS] Fix compiler warning and small code inconsistencies in compat
[XFS] We really suck at spulling. Thanks to Chris Pascoe for fixing all
Linus Torvalds [Wed, 29 Mar 2006 02:48:03 +0000 (18:48 -0800)]
Merge branch 'for-linus' of /linux/kernel/git/scjody/ieee1394
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/scjody/ieee1394:
ohci1394: cleanup the "Unexpected PCI resource length" warning.
sbp2: misc debug logging cleanups
sbp2: proper treatment of DID_OK
ieee1394: set read permission for parameter disable_irm
sbp2: check for ARM failure
ohci1394: clean up asynchronous and physical request filters programming
ieee1394: remove amdtp remains from ieee1394_core.h
ieee1394: remove devfs support
Signed-off-by: Jody McIntyre <scjody@modernduck.com>
sbp2: prevent unloading of 1394 low-level driver
Anton Blanchard [Mon, 27 Mar 2006 01:00:45 +0000 (12:00 +1100)]
[PATCH] powerpc: Remove oprofile spinlock backtrace code
Remove oprofile spinlock backtrace code now we have proper calltrace
support. Also make MMCRA sihv and sipr bits a variable since they may
change in future cpus. Finally, MMCRA should be a 64bit quantity.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Mon, 27 Mar 2006 01:03:17 +0000 (12:03 +1100)]
[PATCH] powerpc: Add oprofile calltrace support to all powerpc cpus
Add calltrace support for other powerpc cpus. Tested on 7450.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Brian Rogan [Mon, 27 Mar 2006 00:57:01 +0000 (11:57 +1100)]
[PATCH] powerpc: Add oprofile calltrace support
Add oprofile calltrace support to powerpc. Disable spinlock backtracing
now we can use calltrace info.
(Updated to work on both 32bit and 64bit by me).
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
KAMEZAWA Hiroyuki [Tue, 28 Mar 2006 22:50:52 +0000 (14:50 -0800)]
[PATCH] for_each_possible_cpu: ppc
for_each_cpu() actually iterates across all possible CPUs. We've had mistakes
in the past where people were using for_each_cpu() where they should have been
iterating across only online or present CPUs. This is inefficient and
possibly buggy.
We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
future.
This patch replaces for_each_cpu with for_each_possible_cpu.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
KAMEZAWA Hiroyuki [Tue, 28 Mar 2006 22:50:51 +0000 (14:50 -0800)]
[PATCH] for_each_possible_cpu: powerpc
for_each_cpu() actually iterates across all possible CPUs. We've had mistakes
in the past where people were using for_each_cpu() where they should have been
iterating across only online or present CPUs. This is inefficient and
possibly buggy.
We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
future.
This patch replaces for_each_cpu with for_each_possible_cpu.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Eugene Surovegin [Tue, 28 Mar 2006 18:13:12 +0000 (10:13 -0800)]
[PATCH] lock PTE before updating it in 440/BookE page fault handler
Fix 44x and BookE page fault handler to correctly lock PTE before
trying to pte_update() it, otherwise this PTE might be swapped out
after pte_present() check but before pte_uptdate() call, resulting in
corrupted PTE. This can happen with enabled preemption and low memory
condition.
Signed-off-by: Eugene Surovegin <ebs@ebshome.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:30 +0000 (16:11 -0800)]
[PATCH] send_sigqueue: simplify and fix the race
send_sigqueue() checks PF_EXITING, then locks p->sighand->siglock. This is
unsafe: 'p' can exit in between and set ->sighand = NULL. The race is
theoretical, the window is tiny and irqs are disabled by the caller, so I
don't think we need the fix for -stable tree.
Convert send_sigqueue() to use lock_task_sighand() helper.
Also, delete 'p->flags & PF_EXITING' re-check, it is unneeded and the
comment is wrong.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:29 +0000 (16:11 -0800)]
[PATCH] do_notify_parent_cldstop: remove 'to_self' param
The previous patch has changed callsites of do_notify_parent_cldstop() so that
to_self == (->ptrace & PT_PTRACED) always (as it should be). We can remove
this parameter now.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:28 +0000 (16:11 -0800)]
[PATCH] finish_stop: don't check stop_count < 0
Remove an obscure 'stop_count < 0' check in finish_stop(). The previous patch
made this case impossible.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:28 +0000 (16:11 -0800)]
[PATCH] simplify do_signal_stop()
do_signal_stop() considers 'thread_group_empty()' as a special case.
This was needed to avoid taking tasklist_lock. Since this lock is
unneeded any longer, we can remove this special case and simplify
the code even more.
Also, before this patch, finish_stop() was called with stop_count == -1
for 'thread_group_empty()' case. This is not strictly wrong, but confusing
and unneeded.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:27 +0000 (16:11 -0800)]
[PATCH] cleanup __exit_signal->cleanup_sighand path
Move 'tsk->sighand = NULL' from cleanup_sighand() to __exit_signal(). This
makes the exit path more understandable and allows us to do
cleanup_sighand() outside of ->siglock protected section.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:26 +0000 (16:11 -0800)]
[PATCH] make fork() atomic wrt pgrp/session signals
Eric W. Biederman wrote:
>
> Ok. SUSV3/Posix is clear, fork is atomic with respect
> to signals. Either a signal comes before or after a
> fork but not during. (See the rationale section).
> http://www.opengroup.org/onlinepubs/
000095399/functions/fork.html
>
> The tasklist_lock does not stop forks from adding to a process
> group. The forks stall while the tasklist_lock is held, but a fork
> that began before we grabbed the tasklist_lock simply completes
> afterwards, and the child does not receive the signal.
This also means that SIGSTOP or sig_kernel_coredump() signal can't
be delivered to pgrp/session reliably.
With this patch copy_process() returns -ERESTARTNOINTR when it
detects a pending signal, fork() will be restarted transparently
after handling the signals.
This patch also deletes now unneeded "group_stop_count > 0" check,
copy_process() can no longer succeed while group stop in progress.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-By: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:25 +0000 (16:11 -0800)]
[PATCH] pids: kill PIDTYPE_TGID
This patch kills PIDTYPE_TGID pid_type thus saving one hash table in
kernel/pid.c and speeding up subthreads create/destroy a bit. It is also a
preparation for the further tref/pids rework.
This patch adds 'struct list_head thread_group' to 'struct task_struct'
instead.
We don't detach group leader from PIDTYPE_PID namespace until another
thread inherits it's ->pid == ->tgid, so we are safe wrt premature
free_pidmap(->tgid) call.
Currently there are no users of find_task_by_pid_type(PIDTYPE_TGID).
Should the need arise, we can use find_task_by_pid()->group_leader.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-By: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:24 +0000 (16:11 -0800)]
[PATCH] do_sigaction: don't take tasklist_lock
do_sigaction() does not need tasklist_lock anymore, we can simplify the code.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:23 +0000 (16:11 -0800)]
[PATCH] do_group_exit: don't take tasklist_lock
do_group_exit() takes tasklist_lock for zap_other_threads(), this is unneeded
now.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:22 +0000 (16:11 -0800)]
[PATCH] do_signal_stop: don't take tasklist_lock
do_signal_stop() does not need tasklist_lock anymore. So it does not need to
do misc re-checks, and we can simplify the code.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:22 +0000 (16:11 -0800)]
[PATCH] relax sig_needs_tasklist()
handle_stop_signal() does not need tasklist_lock for SIG_KERNEL_STOP_MASK
signals anymore.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:21 +0000 (16:11 -0800)]
[PATCH] sys_times: don't take tasklist_lock
sys_times: don't take tasklist_lock
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:20 +0000 (16:11 -0800)]
[PATCH] do __unhash_process() under ->siglock
This patch moves __unhash_process() call from realease_task() to
__exit_signal(), so __detach_pid() is called with ->siglock held.
This means we don't need tasklist_lock to iterate over thread group anymore:
copy_process() was already changed to do attach_pid()
under ->siglock.
Eric's "pidhash-kill-switch_exec_pids.patch" from -mm
changed de_thread() so it doesn't touch PIDTYPE_TGID.
NOTE: de_thread() still needs some attention. It still changes task->pid
lockless. Taking ->sighand.siglock here allows to do more tasklist_lock
removals.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:19 +0000 (16:11 -0800)]
[PATCH] revert "Optimize sys_times for a single thread process"
This patch reverts 'CONFIG_SMP && thread_group_empty()' optimization in
sys_times(). The reason is that the next patch breaks memory ordering which
is needed for that optimization.
tasklist_lock in sys_times() will be eliminated completely by further patch.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oleg Nesterov [Wed, 29 Mar 2006 00:11:18 +0000 (16:11 -0800)]
[PATCH] move __exit_signal() to kernel/exit.c
__exit_signal() is private to release_task() now. I think it is better to
make it static in kernel/exit.c and export flush_sigqueue() instead - this
function is much more simple and straightforward.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>