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2013-05-01vhost: fix error handling in RESET_OWNER ioctlMichael S. Tsirkin
RESET_OWNER ioctl would leave the fd in a bad state if memory allocation failed: device is stopped but owner is not reset. Make state changes after allocating memory, such that a failed ioctl has no effect. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-05-01tcm_vhost: remove virtio-net.h dependencyMichael S. Tsirkin
vhost.h only has generic bits now, so we can drop it virtio-net.h in tcm_vhost. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-05-01vhost: move per-vq net specific fields out to netMichael S. Tsirkin
This will remove the need for vhost scsi to pull in virtio-net.h. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-05-01tcm_vhost: document inflight ref-counting useMichael S. Tsirkin
Add more comments so we remember not to break it next time we change things. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-05-01vhost: move vhost-net zerocopy fields to net.cAsias He
On top of 'vhost: Allow device specific fields per vq', we can move device specific fields to device virt queue from vhost virt queue. Signed-off-by: Asias He <asias@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-05-01tcm_vhost: Wait for pending requests in vhost_scsi_flush()Asias He
Unlike tcm_vhost_evt requests, tcm_vhost_cmd requests are passed to the target core system, we can not make sure all the pending requests will be finished by flushing the virt queue. In this patch, we do refcount for every tcm_vhost_cmd requests to make vhost_scsi_flush() wait for all the pending requests issued before the flush operation to be finished. This is useful when we call vhost_scsi_clear_endpoint() to stop tcm_vhost. No new requests will be passed to target core system because we clear the endpoint by setting vs_tpg to NULL. And we wait for all the old requests. These guarantee no requests will be leaked and existing requests will be completed. Signed-off-by: Asias He <asias@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-05-01vhost: Allow device specific fields per vqAsias He
This is useful for any device who wants device specific fields per vq. For example, tcm_vhost wants a per vq field to track requests which are in flight on the vq. Also, on top of this we can add patches to move things like ubufs from vhost.h out to net.c. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Asias He <asias@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-05-01Merge branch 'for-next-merge' of ↵Michael S. Tsirkin
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending into vhost-net-next
2013-05-01caif_virtio: Remove bouncing email addressesSjur Brændeland
Remove our (soon to be) bouncing email addresses, and update Dmitri's address. Dmitry will take over as maintainer for CAIF from now on. Cc: Vikram Arv <vikram.arv@stericsson.com> Cc: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com> Cc: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no> Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Dmity Tarnyagin <dmitry.tarnyagin@lockless.no>
2013-04-30Hexagon: add v4 CS regs to core copyout macroRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: use correct translation for VMALLOC_STARTRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: use correct translations for DMA mappingsRichard Kuo
With physical offsets, pa<->va translations aren't just based on PAGE_OFFSET anymore. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: fix return value for notify_resume case in do_work_pendingRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: fix signal number for user mem faultsRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: remove two Kconfig entriesPaul Bolle
The Kconfig entries for HEXAGON_VM and HEXAGON_ANGEL_TRAPS were added, together with the configuration and makefiles for the Hexagon architecture, in v3.2. They have never been used. They can safely be removed. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> [rkuo@codeaurora.org: adjust for line changes in Kconfig] Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30arch: remove CONFIG_GENERIC_FIND_NEXT_BIT againPaul Bolle
CONFIG_GENERIC_FIND_NEXT_BIT was removed in v3.0, but reappeared in two architectures. Remove it again. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Jonas Bonn <jonas@southpole.se> Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: update copyright datesRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: add translation types for __vmnewmapRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: fix signal.c compile errorRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: break up user fn/arg register settingRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: use generic sys_fork, sys_vfork, and sys_cloneRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: fix psp/sp macroRichard Kuo
Based on feedback from Al Viro; previous-stack-pointer and user reg for same should always be kept consistent. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: fix up int enable/disable at ret_from_forkRichard Kuo
Check return coming out of check_work_pending, and if copy_thread passed us a function in r24, call it. Based on feedback from Al Viro. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: add IOMEM and _relaxed IO macrosRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: switch to using the device type for IO mappingsRichard Kuo
Uncached on our architecture can still have side effects such as canceled/replayed transactions; device type prevents this. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: don't print info for offline CPU'sRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: add support for single-stepping (v4+)Richard Kuo
Hardware single-step is only available on v4 and later architectures. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: use correct work mask when checking for more workRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: add support for additional exceptionsRichard Kuo
Add multi-reg-write and unaligned-PC exceptions. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: fix initial page table setup prior to jump to VARichard Kuo
Use the exact number of pages needed to be mapped pre-VA-jump, then map 896MB afterwards, which the arch mem init will fix up. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: remove keyring related callRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: check to if we will overflow the signal stackRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: Signal and return path fixesRichard Kuo
This fixes the return value of sigreturn and moves the work pending check into a c routine for readability and fixes the loop for multiple pending signals. Based on feedback from Al Viro. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: add support for new v4+ registersRichard Kuo
Add support for a couple new v4+ registers, along with newer save/restore pt_regs. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: add individual register access for switch_stackRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: use defines for MIN_KERNEL_SEG calculationRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: use GENERIC_CPU_DEVICESRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: change arch version config to allow comparisonsRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: add support for ARCH_PFN_OFFSETRichard Kuo
Add support for loading the kernel at a physical offset. The offset should still be 4M aligned. Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: fix __atomic_add_unlessRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Hexagon: clean up generic headers in KbuildRichard Kuo
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2013-04-30Merge branch 'akpm' (incoming from Andrew)Linus Torvalds
Merge third batch of fixes from Andrew Morton: "Most of the rest. I still have two large patchsets against AIO and IPC, but they're a bit stuck behind other trees and I'm about to vanish for six days. - random fixlets - inotify - more of the MM queue - show_stack() cleanups - DMI update - kthread/workqueue things - compat cleanups - epoll udpates - binfmt updates - nilfs2 - hfs - hfsplus - ptrace - kmod - coredump - kexec - rbtree - pids - pidns - pps - semaphore tweaks - some w1 patches - relay updates - core Kconfig changes - sysrq tweaks" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (109 commits) Documentation/sysrq: fix inconstistent help message of sysrq key ethernet/emac/sysrq: fix inconstistent help message of sysrq key sparc/sysrq: fix inconstistent help message of sysrq key powerpc/xmon/sysrq: fix inconstistent help message of sysrq key ARM/etm/sysrq: fix inconstistent help message of sysrq key power/sysrq: fix inconstistent help message of sysrq key kgdb/sysrq: fix inconstistent help message of sysrq key lib/decompress.c: fix initconst notifier-error-inject: fix module names in Kconfig kernel/sys.c: make prctl(PR_SET_MM) generally available UAPI: remove empty Kbuild files menuconfig: print more info for symbol without prompts init/Kconfig: re-order CONFIG_EXPERT options to fix menuconfig display kconfig menu: move Virtualization drivers near other virtualization options Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS relay: use macro PAGE_ALIGN instead of FIX_SIZE kernel/relay.c: move FIX_SIZE macro into relay.c kernel/relay.c: remove unused function argument actor drivers/w1/slaves/w1_ds2760.c: fix the error handling in w1_ds2760_add_slave() drivers/w1/slaves/w1_ds2781.c: fix the error handling in w1_ds2781_add_slave() ...
2013-04-30Merge tag 'md-3.10' of git://neil.brown.name/mdLinus Torvalds
Pull md fixes from NeilBrown: "A mixed bag of little fixes. No real new functionality here. Several patches are tagged for -stable." * tag 'md-3.10' of git://neil.brown.name/md: MD: ignore discard request for hard disks of hybid raid1/raid10 array md: bad block list should default to disabled. md: raid1/raid10 md devices leak memory when stopping DM RAID: Add message/status support for changing sync action MD: Export 'md_reap_sync_thread' function md: don't update metadata when stopping a read-only array. md: Allow devices to be re-added to a read-only array. md/raid10: Allow skipping recovery when clean arrays are assembled MD: Fix typos in MD documentation md/raid5: avoid an extra write when writing to a known-bad-block. md/raid5: Change or of some order to improve efficiency. md: use set_bit_le and clear_bit_le md: HOT_DISK_REMOVE shouldn't make a read-auto device active. md: use common code for all calls to ->hot_remove_disk() md: never update metadata when array is read-only.
2013-04-30Documentation/sysrq: fix inconstistent help message of sysrq keyzhangwei(Jovi)
Currently help message of /proc/sysrq-trigger highlight its upper-case characters, like below: SysRq : HELP : loglevel(0-9) reBoot Crash terminate-all-tasks(E) memory-full-oom-kill(F) kill-all-tasks(I) ... this would confuse user trigger sysrq by upper-case character, which is inconsistent with the real lower-case character registed key. This inconsistent help message will also lead more confused when 26 upper-case letters put into use in future. This patch fix sysrq documentation. Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30ethernet/emac/sysrq: fix inconstistent help message of sysrq keyzhangwei(Jovi)
Currently help message of /proc/sysrq-trigger highlight its upper-case characters, like below: SysRq : HELP : loglevel(0-9) reBoot Crash terminate-all-tasks(E) memory-full-oom-kill(F) kill-all-tasks(I) ... this would confuse user trigger sysrq by upper-case character, which is inconsistent with the real lower-case character registed key. This inconsistent help message will also lead more confused when 26 upper-case letters put into use in future. This patch ethernet emac sysrq key: "emac(c)" Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com> Cc: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30sparc/sysrq: fix inconstistent help message of sysrq keyzhangwei(Jovi)
Currently help message of /proc/sysrq-trigger highlight its upper-case characters, like below: SysRq : HELP : loglevel(0-9) reBoot Crash terminate-all-tasks(E) memory-full-oom-kill(F) kill-all-tasks(I) ... this would confuse user trigger sysrq by upper-case character, which is inconsistent with the real lower-case character registed key. This inconsistent help message will also lead more confused when 26 upper-case letters put into use in future. This patch fix spare sysrq key: "global-regs(y)" Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30powerpc/xmon/sysrq: fix inconstistent help message of sysrq keyzhangwei(Jovi)
Currently help message of /proc/sysrq-trigger highlight its upper-case characters, like below: SysRq : HELP : loglevel(0-9) reBoot Crash terminate-all-tasks(E) memory-full-oom-kill(F) kill-all-tasks(I) ... this would confuse user trigger sysrq by upper-case character, which is inconsistent with the real lower-case character registed key. This inconsistent help message will also lead more confused when 26 upper-case letters put into use in future. This patch fix powerpc xmon sysrq key: "xmon(x)" Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30ARM/etm/sysrq: fix inconstistent help message of sysrq keyzhangwei(Jovi)
Currently help message of /proc/sysrq-trigger highlights its upper-case characters, like below: SysRq : HELP : loglevel(0-9) reBoot Crash terminate-all-tasks(E) memory-full-oom-kill(F) kill-all-tasks(I) ... this would confuse user trigger sysrq by upper-case character, which is inconsistent with the real lower-case character registed key. This inconsistent help message will also lead more confused when 26 upper-case letters put into use in future. This patch fix arm etm sysrq key: "etm-buffer-dump(v)" (This patch also add "-" to separate each sysrq key help word, instead of spaces) Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30power/sysrq: fix inconstistent help message of sysrq keyzhangwei(Jovi)
Currently help message of /proc/sysrq-trigger highlight its upper-case characters, like below: SysRq : HELP : loglevel(0-9) reBoot Crash terminate-all-tasks(E) memory-full-oom-kill(F) kill-all-tasks(I) ... this would confuse user trigger sysrq by upper-case character, which is inconsistent with the real lower-case character registed key. This inconsistent help message will also lead more confused when 26 upper-case letters put into use in future. This patch fix power off sysrq key: "poweroff(o)" Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30kgdb/sysrq: fix inconstistent help message of sysrq keyzhangwei(Jovi)
Currently help message of /proc/sysrq-trigger highlight its upper-case characters, like below: SysRq : HELP : loglevel(0-9) reBoot Crash terminate-all-tasks(E) memory-full-oom-kill(F) kill-all-tasks(I) ... this would confuse user trigger sysrq by upper-case character, which is inconsistent with the real lower-case character registed key. This inconsistent help message will also lead more confused when 26 upper-case letters put into use in future. This patch fix kgdb sysrq key: "debug(g)" Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Cc: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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