linux/arch/tile, branch v3.9

tile: comment assumption about __insn_mtspr for

2013-04-09T17:08:14Z

The arch_local_irq_save(), etc., routines are required to function as compiler barriers. They do, but it's subtle and requires knowing that the gcc builtin __insn_mtspr() is marked as a memory clobber. Provide a comment explaining the assumption. Signed-off-by: Chris Metcalf [ This came about from me wondering about the synchronization rules of __insn_mtspr() - Linus ] Signed-off-by: Linus Torvalds

Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

2013-04-01T15:17:09Z

Pull arch/tile fix from Chris Metcalf: "This change allows newer Tilera boot tools to work correctly with current (and stable) kernels by using the right filename to get the initramfs from the Tilera hypervisor filesystem." * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tile: expect new initramfs name from hypervisor file system

tile: expect new initramfs name from hypervisor file system

2013-03-29T19:11:49Z

The current Tilera boot infrastructure now provides the initramfs to Linux as a Tilera-hypervisor file named "initramfs", rather than "initramfs.cpio.gz", as before. (This makes it reasonable to use other compression techniques than gzip on the file without having to worry about the name causing confusion.) Adapt to use the new name, but also fall back to checking for the old name. Cc'ing to stable so that older kernels will remain compatible with newer Tilera boot infrastructure. Signed-off-by: Chris Metcalf Cc: stable@vger.kernel.org

Merge tag 'md-3.9-fixes' of git://neil.brown.name/md

2013-03-23T22:49:49Z

Pull md fixes from NeilBrown: "A few bugfixes for md - recent regressions in raid5 - recent regressions in dmraid - a few instances of CONFIG_MULTICORE_RAID456 linger Several tagged for -stable" * tag 'md-3.9-fixes' of git://neil.brown.name/md: md: remove CONFIG_MULTICORE_RAID456 entirely md/raid5: ensure sync and DISCARD don't happen at the same time. MD: Prevent sysfs operations on uninitialized kobjects MD RAID5: Avoid accessing gendisk or queue structs when not available md/raid5: schedule_construction should abort if nothing to do.

md: remove CONFIG_MULTICORE_RAID456 entirely

2013-03-20T02:21:14Z

Once instance of this Kconfig macro remained after commit 51acbcec6c42b24482bac18e42befc822524535d ("md: remove CONFIG_MULTICORE_RAID456"). Remove that one too. And, while we're at it, also remove it from the defconfig files that carry it. Signed-off-by: Paul Bolle Signed-off-by: NeilBrown

Select VIRT_TO_BUS directly where needed

2013-03-12T18:16:40Z

In commit 887cbce0adea ("arch Kconfig: centralise ARCH_NO_VIRT_TO_BUS") I introduced the config sybmol HAVE_VIRT_TO_BUS and selected that where needed. I am not sure what I was thinking. Instead, just directly select VIRT_TO_BUS where it is needed. Signed-off-by: Stephen Rothwell Signed-off-by: Linus Torvalds

tile: properly use COMPAT_SYSCALL_DEFINEx

2013-03-04T18:37:32Z

This was pointed out by Al Viro. Using the correct wrappers properly does sign extension as necessary on syscall arguments. Signed-off-by: Chris Metcalf

tile: work around bug in the generic sys_llseek

2013-03-04T16:19:09Z

sys_llseek should specify the high and low 32-bit seek values as "unsigned int" but instead it specifies "unsigned long". Since compat syscall arguments are always sign-extended on tile, this means that a seek value of 0xffffffff will be incorrectly interpreted as a value of -1ULL. To avoid the risk of breaking binary compatibility on architectures that already use sys_llseek this way, we follow the same path as MIPS and provide a wrapper override. Signed-off-by: Chris Metcalf Cc: stable@kernel.org [v3.6 onwards]

arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS

2013-02-28T03:10:23Z

Change it to CONFIG_HAVE_VIRT_TO_BUS and set it in all architecures that already provide virt_to_bus(). Signed-off-by: Stephen Rothwell Reviewed-by: James Hogan Cc: Bjorn Helgaas Cc: H Hartley Sweeten Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "David S. Miller" Cc: Paul Mundt Cc: Vineet Gupta Cc: James Bottomley Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2013-02-24T02:50:11Z

Pull signal handling cleanups from Al Viro: "This is the first pile; another one will come a bit later and will contain SYSCALL_DEFINE-related patches. - a bunch of signal-related syscalls (both native and compat) unified. - a bunch of compat syscalls switched to COMPAT_SYSCALL_DEFINE (fixing several potential problems with missing argument validation, while we are at it) - a lot of now-pointless wrappers killed - a couple of architectures (cris and hexagon) forgot to save altstack settings into sigframe, even though they used the (uninitialized) values in sigreturn; fixed. - microblaze fixes for delivery of multiple signals arriving at once - saner set of helpers for signal delivery introduced, several architectures switched to using those." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (143 commits) x86: convert to ksignal sparc: convert to ksignal arm: switch to struct ksignal * passing alpha: pass k_sigaction and siginfo_t using ksignal pointer burying unused conditionals make do_sigaltstack() static arm64: switch to generic old sigaction() (compat-only) arm64: switch to generic compat rt_sigaction() arm64: switch compat to generic old sigsuspend arm64: switch to generic compat rt_sigqueueinfo() arm64: switch to generic compat rt_sigpending() arm64: switch to generic compat rt_sigprocmask() arm64: switch to generic sigaltstack sparc: switch to generic old sigsuspend sparc: COMPAT_SYSCALL_DEFINE does all sign-extension as well as SYSCALL_DEFINE sparc: kill sign-extending wrappers for native syscalls kill sparc32_open() sparc: switch to use of generic old sigaction sparc: switch sys_compat_rt_sigaction() to COMPAT_SYSCALL_DEFINE mips: switch to generic sys_fork() and sys_clone() ...