Andrew Vasquez [Fri, 19 Oct 2007 22:59:13 +0000 (15:59 -0700)]
[SCSI] qla2xxx: Resync with latest HBA SSID specification -- 2.2u.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:14 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Remove sym_xpt_async_sent_bdr
This function just printed a message to the user; move the print to its
only caller, and turn it into an starget_printk.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:13 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Remove pci_dev pointer from sym_shcb
This structure is accessed by the device; the fewer Linux things in it,
the better. Using the pci_dev pointer from the hostdata requires a lot
of changes:
- Pass Scsi_Host to a lot of routines which currently take a sym_hcb.
- Set the Scsi_Host as the pci drvdata (instead of the sym_hcb)
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:12 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Make interrupt handler capable of returning IRQ_NONE
Make sym_interrupt return an irqreturn_t instead of void, and take a
Scsi_Host instead of a sym_hcb. Pass the Scsi_Host to the interrupt
handler instead of the sym_hcb. Rename the host_data to sym_data.
Keep a pci_dev pointer in the sym_data. Rename the Scsi_Host from
instance to shost.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:11 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Get rid of IRQ_FMT and IRQ_PRM
These macros aren't needed any more. They used to be used for SPARC.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:10 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Use scmd_printk where appropriate
If we have a scsi_cmnd, it gives the user more information than the
sym_name, and maybe the target.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:09 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Simplify DAC DMA handling
By introducing the use_dac(), set_dac() and DMA_DAC_MASK macros, we can
eliminate a lot of ifdefs from the code. We now rely on the compiler to
optimise away a few things that we'd formerly relied on the preprocessor
to do. This makes sym_setup_bus_dma_mask() small enough to inline into
its only caller.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:08 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Remove tag_ctrl module parameter
With sysfs making these options tunable at runtime, there's no
justification for keeping this horrendously complex specification
string around.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:07 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Remove io_ws, mmio_ws and ram_ws elements
These struct elements record info that is never needed
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:06 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Remove ->device_id
Following the same path as ->revision_id, remove ->device_id
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:05 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Use pdev->revision
Auke missed the sym2 driver in his initial sweep.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Linas Vepstas [Fri, 5 Oct 2007 19:55:04 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: PCI Error Recovery support
This patch adds the PCI error recovery callbacks to the Symbios SCSI device
driver. It includes support for First Failure Data Capture.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Assorted changes to initial patches, including returning IRQ_NONE from the
interrupt handler if the device is offline and re-using the eh_done completion
in the scsi error handler.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:03 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Stop overriding scsi_done
Instead of telling the reset routine that the command completed from
sym_eh_done, do it from sym_xpt_done. The 'to_do' element of the ucmd
is redundant -- it serves only to tell whether eh_done is valid or not,
and we can tell this by checking to see if it's NULL.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:02 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Don't disable interrupts in the interrupt handler
Interrupts can't be re-entered, so it's sufficient to call spin_lock, not
spin_lock_irqsave().
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:01 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Remove unnecessary check in queuecommand
The midlayer won't scan the host ID, so we don't need to check.
This is the only caller of sym_xpt_done2, so remove that too.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:55:00 +0000 (15:55 -0400)]
[SCSI] sym53c8xx: Remove data_mapping and data_mapped
Before all commands used sg, data_mapping and data_mapped were used to
distinguish whether the command had used map_single or map_sg. Now all
commands are sg, so we can delete data_mapping, data_mapped and the
wrapper functions __unmap_scsi_data, __map_scsi_sg_data, unmap_scsi_data
and map_scsi_sg_data.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Fri, 5 Oct 2007 19:54:59 +0000 (15:54 -0400)]
[SCSI] sym53c8xx: Use pci_dev irq number
Don't cache a private copy of the interrupt number
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Kai Makisara [Fri, 5 Oct 2007 19:54:58 +0000 (15:54 -0400)]
[SCSI] sym53c8xx: Work around 53c896 erratum
Prevent DMA transfers from crossing the 16MB limit for early 53c896 chips.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Johannes Dickgreber [Wed, 19 Sep 2007 23:07:50 +0000 (01:07 +0200)]
[SCSI] qla1280: eliminate wasted space in request and response ring
i think there is wasted space in allocated pages for request and
response rings. The allocations are made with REQUEST_ENTRY_CNT + 1
and RESPONSE_ENTRY_CNT + 1, but they are set with 256 and 16.
So we got more pages, which we dont use very much so eliminate them.
Signed-off-by: Johannes Dickgreber <tanzy@gmx.de>
Acked-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Hannes Reinecke [Fri, 19 Oct 2007 08:32:34 +0000 (10:32 +0200)]
[SCSI] aic7xxx: Fix firmware build
If a prefix is selected for flex, we should be using it everywhere.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Hannes Reinecke [Fri, 19 Oct 2007 08:32:29 +0000 (10:32 +0200)]
[SCSI] aic7xxx: Update Maintainer information
Might as well take the blame officially.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Hannes Reinecke [Fri, 19 Oct 2007 08:32:21 +0000 (10:32 +0200)]
[SCSI] aic7xxx: Add suspend/resume support
The aic7xxx driver already contains fragments for suspend/resume
support. So we only need to update them to the current interface
and have full PCI suspend/resume.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Tested-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Johannes Dickgreber [Wed, 3 Oct 2007 11:22:19 +0000 (13:22 +0200)]
[SCSI] qla1280: uses wrong failure path after failed pci_set_dma_mask
A failure here wouldn't currently free the irq; go to the irq free
path instead.
Signed-off-by: Johannes Dickgreber <tanzy@gmx.de>
Acked-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Adrian Bunk [Thu, 18 Oct 2007 10:51:05 +0000 (12:51 +0200)]
[SCSI] gdth: __init fixes
This patch fixes the following build warnings:
WARNING: vmlinux.o(.text+0xbcffdb): Section mismatch: reference to .init.text.20:gdth_search_drives (between 'gdth_pci_probe_one' and 'gdth_start_timeout')
WARNING: vmlinux.o(.text+0xbd0102): Section mismatch: reference to .init.text.20:gdth_enable_int (between 'gdth_pci_probe_one' and 'gdth_start_timeout')
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Adrian Bunk [Thu, 18 Oct 2007 10:52:07 +0000 (12:52 +0200)]
[SCSI] aic7xxx_old: fix accidental logic reversal
Commit
bbfbbbc1182f8b44c8cc4c99f4a3f3a512149022 accidentally reversed
the logic of this NULL check.
Spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Andrew Morton [Tue, 16 Oct 2007 21:28:20 +0000 (14:28 -0700)]
[SCSI] qla2xxx: printk fixes
drivers/scsi/qla2xxx/qla_sup.c: In function 'qla24xx_write_flash_data':
drivers/scsi/qla2xxx/qla_sup.c:655: warning: format '%llx' expects type 'long long unsigned int', but argument 6 has type 'dma_addr_t'
drivers/scsi/qla2xxx/qla_sup.c: In function 'qla25xx_read_optrom_data':
drivers/scsi/qla2xxx/qla_sup.c:1853: warning: format '%llx' expects type 'long long unsigned int', but argument 6 has type 'dma_addr_t'
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Adrian Bunk [Thu, 18 Oct 2007 10:52:37 +0000 (12:52 +0200)]
[SCSI] lpfc: lpfc_debugfs.c: fix typo
This patch fixes a typo introduced by
commit
bbfbbbc1182f8b44c8cc4c99f4a3f3a512149022.
It wasn't a compile error since CONFIG_LPFC_DEBUG_FS is not (yet?)
available as an option.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Alan Cox [Mon, 15 Oct 2007 19:51:32 +0000 (20:51 +0100)]
[SCSI] initio: Fix merge fallout
Fix IRQ reporting - just assign the ->pci_dev pointer earlier and use the
pci_dev irq field rather than keeping a private one
Init the spinlock as it works better on SMP that way
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
HighPoint Linux Team [Mon, 15 Oct 2007 06:42:52 +0000 (14:42 +0800)]
[SCSI] hptiop: avoid buffer overflow when returning sense data
The newer firmware may return more than 96 bytes of sense data when it
does autosense. Truncate this to the size of the SCSI layer sense
buffer to avoid an overrun.
Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
James Bottomley [Wed, 26 Sep 2007 03:45:53 +0000 (22:45 -0500)]
[SCSI] make supported_mode default to initiator.
if shost->supported mode is zero (i.e. MODE_UNKNOWN) show it as
initiator (it's obviously an unconverted driver that won't do target).
Acked-by: FUJITA Tomonori <tomof@acm.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
James Bottomley [Tue, 16 Oct 2007 01:07:17 +0000 (21:07 -0400)]
[SCSI] include linux/scatterlist.h in scsi_eh.h
Spotted by Paul Jackson <pj@sgi.com>
The error handler rework moved the scatterlist into a globally exposed
structure in scsi_eh.h; unfortunately, the scatterlist include needs
to move from scsi_error.c to scsi_eh.h to allow this to compile
universally.
Acked-by: Paul Jackson <pj@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Matthew Wilcox [Tue, 16 Oct 2007 05:05:07 +0000 (23:05 -0600)]
[SCSI] fc4: remove this and all associated drivers
This code has been slowly rotting for about eight years. It's currently
impeding a few SCSI cleanups, and nobody seems to have hardware to test
it any more. I talked to Dave Miller about it, and he agrees we can
delete it. If anyone wants a software FC stack in future, they can
retrieve this driver from git.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Linus Torvalds [Wed, 17 Oct 2007 22:13:42 +0000 (15:13 -0700)]
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] fix non-numa build
Linus Torvalds [Wed, 17 Oct 2007 22:05:58 +0000 (15:05 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: remove sysctl
9p: fix bad kconfig cross-dependency
9p: soften invalidation in loose_mode
9p: attach-per-user
9p: rename uid and gid parameters
9p: define session flags
9p: Make transports dynamic
Andrew Morton [Wed, 17 Oct 2007 21:28:38 +0000 (14:28 -0700)]
[IA64] fix non-numa build
arch/ia64/kernel/machine_kexec.c: In function `arch_crash_save_vmcoreinfo':
arch/ia64/kernel/machine_kexec.c:131: error: `pgdat_list' undeclared (first use in this function)
arch/ia64/kernel/machine_kexec.c:131: error: (Each undeclared identifier is reported only once
arch/ia64/kernel/machine_kexec.c:131: error: for each function it appears in.)
arch/ia64/kernel/machine_kexec.c:134: error: `node_memblk' undeclared (first use in this function)
arch/ia64/kernel/machine_kexec.c:135: error: `NR_NODE_MEMBLKS' undeclared (first use in this function)
arch/ia64/kernel/machine_kexec.c:136: error: invalid application of `sizeof' to incomplete type `node_memblk_s'
arch/ia64/kernel/machine_kexec.c:137: error: dereferencing pointer to incomplete type
arch/ia64/kernel/machine_kexec.c:138: error: dereferencing pointer to incomplete type
make[1]: *** [arch/ia64/kernel/machine_kexec.o] Error 1
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Linus Torvalds [Wed, 17 Oct 2007 21:12:44 +0000 (14:12 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
net: libertas sdio driver
mmc: at91_mci: cleanup: use MCI_ERRORS
mmc: possible leak in mmc_read_ext_csd
Pierre Ossman [Wed, 17 Oct 2007 20:24:24 +0000 (22:24 +0200)]
net: libertas sdio driver
Add driver for Marvell's Libertas 8385 and 8686 wifi chips.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Acked-by: Dan Williams <dcbw@redhat.com>
Linus Torvalds [Wed, 17 Oct 2007 20:13:16 +0000 (13:13 -0700)]
Merge ssh:///linux/kernel/git/tglx/linux-2.6-x86
* ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86: (114 commits)
x86: delete vsyscall files during make clean
kbuild: fix typo SRCARCH in find_sources
x86: fix kernel rebuild due to vsyscall fallout
.gitignore update for x86 arch
x86: unify include/asm/debugreg_32/64.h
x86: unify include/asm/unwind_32/64.h
x86: unify include/asm/types_32/64.h
x86: unify include/asm/tlb_32/64.h
x86: unify include/asm/siginfo_32/64.h
x86: unify include/asm/bug_32/64.h
x86: unify include/asm/mman_32/64.h
x86: unify include/asm/agp_32/64.h
x86: unify include/asm/kdebug_32/64.h
x86: unify include/asm/ioctls_32/64.h
x86: unify include/asm/floppy_32/64.h
x86: apply missing DMA/OOM prevention to floppy_32.h
x86: unify include/asm/cache_32/64.h
x86: unify include/asm/cache_32/64.h
x86: unify include/asm/dmi_32/64.h
x86: unify include/asm/delay_32/64.h
...
Sam Ravnborg [Wed, 17 Oct 2007 20:06:30 +0000 (22:06 +0200)]
x86: delete vsyscall files during make clean
make clean failed to delete a few files in
x86/kernel. This is because kbuild does not
see the correct/full kernel/Makefile.
As a workaround until the Makefiles are merged specify
the files to be deleted in the common Makefile.
Reported by Mike Galbraith <efault@gmx.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Mike Galbraith <efault@gmx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Yinghai Lu [Tue, 16 Oct 2007 07:28:06 +0000 (00:28 -0700)]
kbuild: fix typo SRCARCH in find_sources
otherwise get the two copy file list in SRCARCH
for cscope:
C symbol: start_kernel
File Function Line
0 proto.h <global> 11 extern void start_kernel(void );
1 start_kernel.h <global> 10 extern asmlinkage void __init start_kernel(void );
2 head32.c i386_start_kernel 37 start_kernel();
3 head32.c i386_start_kernel 37 start_kernel();
4 head64.c x86_64_start_kernel 85 start_kernel();
5 head64.c x86_64_start_kernel 85 start_kernel();
6 head_32.S options 199 cmpb $0,%cl #the first CPU calls start_kernel
7 head_32.S options 199 cmpb $0,%cl #the first CPU calls start_kernel
8 enlighten.c xen_start_kernel 1145 start_kernel();
9 enlighten.c xen_start_kernel 1145 start_kernel();
a lguest.c lguest_init 1095 start_kernel();
b main.c start_kernel 513 asmlinkage void __init start_kernel(void )
after the patch:
C symbol: start_kernel
File Function Line
0 proto.h <global> 11 extern void start_kernel(void );
1 start_kernel.h <global> 10 extern asmlinkage void __init start_kernel(void );
2 head32.c i386_start_kernel 37 start_kernel();
3 head64.c x86_64_start_kernel 85 start_kernel();
4 head_32.S options 199 cmpb $0,%cl #the first CPU calls start_kernel
5 enlighten.c xen_start_kernel 1145 start_kernel();
6 lguest.c lguest_init 1095 start_kernel();
7 main.c start_kernel 513 asmlinkage void __init start_kernel(void )
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Eric Van Hensbergen [Wed, 17 Oct 2007 19:35:15 +0000 (14:35 -0500)]
9p: remove sysctl
A sysctl method was added to enable and disable debugging levels. After
further review, it was decided that there are better approaches to doing this
and the sysctl methodology isn't really desirable. This patch removes the
sysctl code from 9p.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Andrew Victor [Wed, 17 Oct 2007 09:53:40 +0000 (11:53 +0200)]
mmc: at91_mci: cleanup: use MCI_ERRORS
A small MMC driver cleanup.
Use the defined AT91_MCI_ERRORS in at91_mci_completed_command() instead
of specifying all the error bits individually.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Florin Malita [Sat, 13 Oct 2007 16:27:20 +0000 (12:27 -0400)]
mmc: possible leak in mmc_read_ext_csd
The exception path associated with an invalid ext_csd_struct returns
without freeing ext_csd.
Coverity CID 1909.
Signed-off-by: Florin Malita
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Eric Van Hensbergen [Wed, 17 Oct 2007 19:31:07 +0000 (14:31 -0500)]
9p: fix bad kconfig cross-dependency
This patch moves transport dynamic registration and matching to the net
module to prevent a bad Kconfig dependency between the net and fs 9p modules.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Eric Van Hensbergen [Wed, 17 Oct 2007 19:31:07 +0000 (14:31 -0500)]
9p: soften invalidation in loose_mode
Loose mode in 9p utilizes the page cache without respecting coherency with
the server. Any writes previously invaldiated the entire mapping for a file.
This patch softens the behavior to only invalidate the region of the actual
write.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Latchesar Ionkov [Wed, 17 Oct 2007 19:31:07 +0000 (14:31 -0500)]
9p: attach-per-user
The 9P2000 protocol requires the authentication and permission checks to be
done in the file server. For that reason every user that accesses the file
server tree has to authenticate and attach to the server separately.
Multiple users can share the same connection to the server.
Currently v9fs does a single attach and executes all I/O operations as a
single user. This makes using v9fs in multiuser environment unsafe as it
depends on the client doing the permission checking.
This patch improves the 9P2000 support by allowing every user to attach
separately. The patch defines three modes of access (new mount option
'access'):
- attach-per-user (access=user) (default mode for 9P2000.u)
If a user tries to access a file served by v9fs for the first time, v9fs
sends an attach command to the server (Tattach) specifying the user. If
the attach succeeds, the user can access the v9fs tree.
As there is no uname->uid (string->integer) mapping yet, this mode works
only with the 9P2000.u dialect.
- allow only one user to access the tree (access=<uid>)
Only the user with uid can access the v9fs tree. Other users that attempt
to access it will get EPERM error.
- do all operations as a single user (access=any) (default for 9P2000)
V9fs does a single attach and all operations are done as a single user.
If this mode is selected, the v9fs behavior is identical with the current
one.
Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Latchesar Ionkov [Wed, 17 Oct 2007 19:31:07 +0000 (14:31 -0500)]
9p: rename uid and gid parameters
Change the names of 'uid' and 'gid' parameters to the more appropriate
'dfltuid' and 'dfltgid'. This also sets the default uid/gid to -2
(aka nfsnobody)
Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Latchesar Ionkov [Wed, 17 Oct 2007 19:31:07 +0000 (14:31 -0500)]
9p: define session flags
Create more general flags field in the v9fs_session_info struct and move the
'extended' flag as a bit in the flags.
Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Eric Van Hensbergen [Wed, 17 Oct 2007 19:31:07 +0000 (14:31 -0500)]
9p: Make transports dynamic
This patch abstracts out the interfaces to underlying transports so that
new transports can be added as modules. This should also allow kernel
configuration of transports without ifdef-hell.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Sam Ravnborg [Wed, 17 Oct 2007 19:16:33 +0000 (21:16 +0200)]
x86: fix kernel rebuild due to vsyscall fallout
Fix rebuild of kernel when there is no changes.
This happened for i386.
Using make V=2 hinted that the output files were
not assigned to targets - fixed by this patch.
Reported by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Denis V. Lunev [Tue, 16 Oct 2007 07:22:21 +0000 (11:22 +0400)]
.gitignore update for x86 arch
This patch:
- makes .gitignore files visible to git
- makes arch/x86/kernel/vsyscall_32.lds and arch/i386/boot invisible
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Linus Torvalds [Wed, 17 Oct 2007 18:56:06 +0000 (11:56 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block:
[BLOCK] blk_rq_map_sg() next_sg fixup
Revert "[SCSI] Remove full sg table memset()"
Thomas Gleixner [Wed, 17 Oct 2007 18:35:37 +0000 (20:35 +0200)]
x86: unify include/asm/debugreg_32/64.h
Almost identical except for the extra DR_LEN_8 and the different
DR_CONTROL_RESERVED defines.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Conflicts:
include/asm-x86/Kbuild
Thomas Gleixner [Mon, 15 Oct 2007 21:28:21 +0000 (23:28 +0200)]
x86: unify include/asm/unwind_32/64.h
32bit has an extra UNW_FP define, which does not hurt.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Wed, 17 Oct 2007 18:32:07 +0000 (20:32 +0200)]
x86: unify include/asm/types_32/64.h
Mostly the same. Make the few exceptions conditional.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Conflicts:
include/asm-x86/types_32.h
Thomas Gleixner [Mon, 15 Oct 2007 21:28:21 +0000 (23:28 +0200)]
x86: unify include/asm/tlb_32/64.h
Same file, except for whitespace, comment formatting.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:21 +0000 (23:28 +0200)]
x86: unify include/asm/siginfo_32/64.h
Same file, except for the 64bit PREAMBLE_SIZE define.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Wed, 17 Oct 2007 15:19:30 +0000 (17:19 +0200)]
x86: unify include/asm/bug_32/64.h
Same file, except for whitespace, comment formatting and the
.long/.quad delta which can be solved by a define.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:21 +0000 (23:28 +0200)]
x86: unify include/asm/mman_32/64.h
Same file, except for the extra 64bit MAP_32BIT define, which does not hurt
for 32 bit compiles.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:20 +0000 (23:28 +0200)]
x86: unify include/asm/agp_32/64.h
The 32bit D(n) debug addon can be made exclusive for 32 bit compiles.
Otherwise all the same.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:20 +0000 (23:28 +0200)]
x86: unify include/asm/kdebug_32/64.h
The 64 bit variant has additional function prototypes which do no harm
for 32 bit.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:20 +0000 (23:28 +0200)]
x86: unify include/asm/ioctls_32/64.h
Same file, except for whitespace and comment formatting.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Wed, 17 Oct 2007 18:24:56 +0000 (20:24 +0200)]
x86: unify include/asm/floppy_32/64.h
Same file, except for whitespace, comment formatting and:
32-bit: if((unsigned int) addr >= (unsigned int) high_memory)
64-bit: if((unsigned long) addr >= (unsigned long) high_memory)
where the latter can be used safely for both.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Conflicts:
include/asm-x86/floppy_32.h
include/asm-x86/floppy_64.h
Thomas Gleixner [Mon, 15 Oct 2007 21:28:20 +0000 (23:28 +0200)]
x86: apply missing DMA/OOM prevention to floppy_32.h
commit
554d284ba90bc2306c31e5363789f05c320969c3 added _GPF_NORETRY
to floppy_64.h to prevent OOM killer on floppy DMA allocations.
Apply the same to the 32 bit variant.
Found during the attempt to unify the _32/_64 variants. Seperate commit
to document the resulting code change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:20 +0000 (23:28 +0200)]
x86: unify include/asm/cache_32/64.h
Same file, except for whitespace, comment formatting and the two variants
of fb_is_primary_device()
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:20 +0000 (23:28 +0200)]
x86: unify include/asm/cache_32/64.h
Same file, except for whitespace, comment formatting and:
32-bit: unsigned long *virt_addr = va;
64-bit: unsigned int *virt_addr = va;
Both can be safely replaced by:
u32 i, *virt_addr = va;
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:20 +0000 (23:28 +0200)]
x86: unify include/asm/dmi_32/64.h
Unification, so we have these things in one file.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:20 +0000 (23:28 +0200)]
x86: unify include/asm/delay_32/64.h
Same file, except for whitespace, comment formatting and the extra
function prototype usc_tsc_delay() in _32.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:20 +0000 (23:28 +0200)]
x86: unify include/asm/cache_32/64.h
Same file, except for whitespace, comment formatting and the extra
defines in _64, which are conditional on VSMP anyway.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:20 +0000 (23:28 +0200)]
x86: unify include/asm/cacheflush_32/64.h
Same file, except for whitespace, comment formatting and the extra
DEBUG_PAGE_ALLOC function in _32.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:19 +0000 (23:28 +0200)]
x86: unify include/asm/auxvec_32/64.h
Same file, except for whitespace, comment formatting and the
AT_SYSINFO define for 32bit
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 21:28:19 +0000 (23:28 +0200)]
x86: unify include/asm/agp_32/64.h
Same file, except for whitespace, comment formatting and the
usage of wbinvd() instead of asm volatile("wbinvd":::"memory"), which is
the same.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 15 Oct 2007 11:57:47 +0000 (13:57 +0200)]
x86: unify some more trivial include/asm-x86/ 32/64 variants
Scripted unification.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Roland Dreier [Mon, 15 Oct 2007 11:57:46 +0000 (13:57 +0200)]
x86: merge some trivially mergeable headers
Merge errno.h, resource.h, rtc.h, sections.h, serial.h and sockios.h,
where i386 and x86_64 have no or only trivial comment/include guard
differences.
Build tested on both 32-bit and 64-bit, and booted on 64-bit.
[tglx: fixup Kbuild as well]
Signed-off-by: Roland Dreier <roland@digitalvampire.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Brian Gerst [Mon, 15 Oct 2007 11:57:46 +0000 (13:57 +0200)]
x86: trivial header merges
Merge 32/64-bit headers that simply redirect to asm-generic
[tglx: fixup Kbuild as well]
Signed-off-by: Brian Gerst <bgerst@didntduck.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Roland McGrath [Wed, 17 Oct 2007 16:04:41 +0000 (18:04 +0200)]
x86: vdso linker script cleanup
I can't see the reason ". = VDSO_PRELINK + 0x900;" was ever there in
the linker script for the x86_64 vDSO. I can't find anything that
depends on this magic offset, or that should care at all about the
particular location of of the .data section (all from vvar.c) in the
vDSO image. If it is really desireable to place .data at 0x900, then it
should be after all the other sections so they fill in the space up to
0x900.
This removes the 0x900 magic and cleans up the output sections generally
in the vDSO linker script. This saves a few hundred bytes in the size
of the vDSO file, bringing it back well under 4kb total so that its vma
only needs one page.
Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Luiz Fernando N. Capitulino [Wed, 17 Oct 2007 16:04:41 +0000 (18:04 +0200)]
x86: convert mm_context_t semaphore to a mutex
convert mm_context_t semaphore to a mutex.
Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Jan Beulich [Wed, 17 Oct 2007 16:04:41 +0000 (18:04 +0200)]
x86: multi-byte single instruction NOPs
Add support for and use the multi-byte NOPs recently documented to be
available on all PentiumPro and later processors.
This patch only applies cleanly on top of the "x86: misc.
constifications" patch sent earlier.
[ tglx: arch/x86 adaptation ]
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/kernel/alternative.c | 23 ++++++++++++++++++++++-
include/asm-x86/processor_32.h | 22 ++++++++++++++++++++++
include/asm-x86/processor_64.h | 22 ++++++++++++++++++++++
3 files changed, 66 insertions(+), 1 deletion(-)
Andi Kleen [Wed, 17 Oct 2007 16:04:41 +0000 (18:04 +0200)]
x86: remove duplicated vsyscall nsec update
Spotted by Chuck Ebbert
[ tglx: arch/x86 adaptation ]
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ingo Molnar [Wed, 17 Oct 2007 16:04:41 +0000 (18:04 +0200)]
i386: remove unnecessary code
Oleg Nesterov pointed out that the set_fs() calls in setup_frame()
and setup_rt_frame() were superfluous.
[ tglx: arch/x86 adaptation ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Luiz Fernando N. Capitulino [Wed, 17 Oct 2007 16:04:41 +0000 (18:04 +0200)]
x86: convert mm_context_t semaphore to a mutex
[ tglx: arch/x86 adaptation ]
Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Wed, 17 Oct 2007 16:04:41 +0000 (18:04 +0200)]
x86: Use string instruction memcpy on AMD Fam11h
[ tglx: arch/x86 adaptation ]
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Yinghai Lu [Wed, 17 Oct 2007 16:04:41 +0000 (18:04 +0200)]
x86: make io_apic not connected pin print complete
Normally we will have two segment not connected pin pin0, and pin after
15...
So we need to print out "not connected\n" for previous segment, before
printing out connected pins info...
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Ingo Molnar [Wed, 17 Oct 2007 16:04:41 +0000 (18:04 +0200)]
Jan Beulich [Wed, 17 Oct 2007 16:04:40 +0000 (18:04 +0200)]
x86: also show non-zero IRQ counts for vectors that currently don't have a handler
It doesn't seem to make sense to hide these, even if their counts
can't change at the point in time they're being displayed.
[ tglx: arch/x86 adaptation ]
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Joe Korty [Wed, 17 Oct 2007 16:04:40 +0000 (18:04 +0200)]
x86: expand /proc/interrupts to include missing vectors, v2
Add missing IRQs and IRQ descriptions to /proc/interrupts.
/proc/interrupts is most useful when it displays every IRQ vector in use by
the system, not just those somebody thought would be interesting.
This patch inserts the following vector displays to the i386 and x86_64
platforms, as appropriate:
rescheduling interrupts
TLB flush interrupts
function call interrupts
thermal event interrupts
threshold interrupts
spurious interrupts
A threshold interrupt occurs when ECC memory correction is occuring at too
high a frequency. Thresholds are used by the ECC hardware as occasional
ECC failures are part of normal operation, but long sequences of ECC
failures usually indicate a memory chip that is about to fail.
Thermal event interrupts occur when a temperature threshold has been
exceeded for some CPU chip. IIRC, a thermal interrupt is also generated
when the temperature drops back to a normal level.
A spurious interrupt is an interrupt that was raised then lowered by the
device before it could be fully processed by the APIC. Hence the apic sees
the interrupt but does not know what device it came from. For this case
the APIC hardware will assume a vector of 0xff.
Rescheduling, call, and TLB flush interrupts are sent from one CPU to
another per the needs of the OS. Typically, their statistics would be used
to discover if an interrupt flood of the given type has been occuring.
AK: merged v2 and v4 which had some more tweaks
AK: replace Local interrupts with Local timer interrupts
AK: Fixed description of interrupt types.
[ tglx: arch/x86 adaptation ]
[ mingo: small cleanup ]
Signed-off-by: Joe Korty <joe.korty@ccur.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Tim Hockin <thockin@hockin.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Pavel Emelyanov [Wed, 17 Oct 2007 16:04:40 +0000 (18:04 +0200)]
i386: clean up oops/bug reports
Typically the oops first lines look like this:
BUG: unable to handle kernel NULL pointer dereference at virtual address
00000000
printing eip:
c049dfbd
*pde =
00000000
Oops: 0002 [#1]
PREEMPT SMP
...
Such output is gained with some ugly if (!nl) printk("\n"); code and
besides being a waste of lines, this is also annoying to read. The
following output looks better (and it is how it looks on x86_64):
BUG: unable to handle kernel NULL pointer dereference at virtual address
00000000
printing eip:
c049dfbd *pde =
00000000
Oops: 0002 [#1] PREEMPT SMP
...
[ tglx: arch/x86 adaptation ]
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Wed, 17 Oct 2007 16:04:40 +0000 (18:04 +0200)]
x86: print info about late C1E detection on 32bit as well
Some BIOSes set the C1E flag only on the second core. Print a warning so
the Firmware Toolkit can check for it.
mingo: fix C1E build bug on 32-bit
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Satyam Sharma [Wed, 17 Oct 2007 16:04:40 +0000 (18:04 +0200)]
x86: call cache_add_dev() from cache_sysfs_init() explicitly
Call cache_add_dev() from cache_sysfs_init() explicitly, instead of
referencing the CPU notifier callback directly from generic startup
code. Looks cleaner (to me at least) this way, and also makes it
possible to use other tricks to replace __cpuinit{data} annotations, as
recently discussed on this list.
Signed-off-by: Satyam Sharma <satyam@infradead.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Wed, 17 Oct 2007 16:04:40 +0000 (18:04 +0200)]
x86: fix dmi const-ify fallout
The dmi const-ification missed acer_cpu_freq_pst. Fix it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Wed, 17 Oct 2007 16:04:40 +0000 (18:04 +0200)]
x86: unify include/asm/ldt_32/64.h
The additional struct member of user_desc can be made conditional for
64 bit compiles.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Wed, 17 Oct 2007 16:04:40 +0000 (18:04 +0200)]
x86: unify include/asm/ptrace-abi_32/64.h
Aside of the register defines the content can be shared.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Wed, 17 Oct 2007 16:04:40 +0000 (18:04 +0200)]
x86: unify include/asm/mce_32/64.h
Merge the files together.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Roland McGrath [Wed, 17 Oct 2007 16:04:40 +0000 (18:04 +0200)]
x86: vdso put vars in rodata
This adds a const to the definitions vvar.c makes, so that the vdso_*
variables go into .rodata instead of .data. This is essentially a
cosmetic change, just giving the section headers in the vDSO file more
pleasing flags. These variables are read-only from the perspective of
the vDSO itself and user mode, even though the contents of the DSO image
were adjusted at boot.
Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Muli Ben-Yehuda [Wed, 17 Oct 2007 16:04:39 +0000 (18:04 +0200)]
x86: calgary get rid of translate_phb
Now that we check for translation enabled/disabled based on the presence
of the IOMMU translation table, we can get rid of translate_phb.
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andrew Morton [Wed, 17 Oct 2007 16:04:39 +0000 (18:04 +0200)]
x86: asm-i386/io.h fix constness
- Fix this:
include/asm/io.h: In function `memcpy_fromio':
include/asm/io.h:208: warning: passing argument 2 of `__memcpy' discards qualifiers from pointer target type
- Clean up code a bit
Reported-by: Uwe Bugla <uwe.bugla@gmx.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Adrian Bunk [Wed, 17 Oct 2007 16:04:39 +0000 (18:04 +0200)]
x86: visws extern inline to static inline
"extern inline" will have different semantics with gcc 4.3.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Andrey Panin <pazke@donpac.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Mike Travis [Wed, 17 Oct 2007 16:04:39 +0000 (18:04 +0200)]
x86: fix cpu_to_node references
In x86_64 and i386 architectures most arrays that are sized using
NR_CPUS lay in local memory on node 0. Not only will most (99%?) of the
systems not use all the slots in these arrays, particularly when NR_CPUS
is increased to accommodate future very high cpu count systems, but a
number of cache lines are passed unnecessarily on the system bus when
these arrays are referenced by cpus on other nodes.
Typically, the values in these arrays are referenced by the cpu
accessing it's own values, though when passing IPI interrupts, the cpu
does access the data relevant to the targeted cpu/node. Of course, if
the referencing cpu is not on node 0, then the reference will still
require cross node exchanges of cache lines. A common use of this is
for an interrupt service routine to pass the interrupt to other cpus
local to that node.
Ideally, all the elements in these arrays should be moved to the per_cpu
data area. In some cases (such as x86_cpu_to_apicid) the array is
referenced before the per_cpu data areas are setup. In this case, a
static array is declared in the __initdata area and initialized by the
booting cpu (BSP). The values are then moved to the per_cpu area after
it is initialized and the original static array is freed with the rest
of the __initdata.
This patch:
Fix four instances where cpu_to_node is referenced by array instead of
via the cpu_to_node macro. This is preparation to moving it to the
per_cpu data area.
Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Wed, 17 Oct 2007 16:04:39 +0000 (18:04 +0200)]
x86: cleanup 64bit unistd.h
sys_iopl is long gone and there is no reason to declare
sys_rt_sigaction here.
Remove it all together and fix the whitespace mess as well.
It's worth the trouble: 25897 -> 21337 bytes, the win is
larger than the memory of my first computer :)
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Stefan Richter [Wed, 17 Oct 2007 16:04:39 +0000 (18:04 +0200)]
x86: configure HPET_EMULATE_RTC automatically
It needs to be automatic. The HPET legacy interrupt mode disconnects
the RTC interrupt and connects the interrupt of the second HPET channel.
[ tglx: arch/x86 adaptation and comment fixup]
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / log