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2012-07-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds
Pull sparc updates from David Miller: "Nothing much this merge window for sparc. 1) Fix FPU state management in sparc32, from Tkhai Kirill. 2) More sparc32 mm layer code cleanups, largely more side effects of the sun4c support removal in the 3.5 From Sam Ravnborg. 3) Remove unused code in sparc64, from Bjorn Helgaas and Kirill Tkhai. 4) Some declaration and comment tidies in PROM support code, from Geert Uytterhoeven." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: (24 commits) sparc32, copy_thread: Clear TIF_USEDFPU flag of created task instead of current sparc32: delete dead code in show_mem() sparc32: move kmap_init() to highmem.c sparc32: move probe_memory() to srmmu.c sparc32: drop unused BAD_PAGE stuff sparc32: centralize all mmu context handling in srmmu.c sparc32: drop quicklist sparc32: drop sparc model check in paging_init sparc32: drop sparc_unmapped_base sparc32,leon: drop leon_init() sparc32: drop fixmap.h sparc32: fixmap.h cleanup sparc32: drop unused kmap_atomic_to_page sparc32: drop swapper_pg_dir sparc32: beautify srmmu_inherit_prom_mappings() sparc32: use void * in nocache get/free sparc32: fix coding-style in srmmu.c sparc32: sort includes in srmmu.c sparc32: define a few srmmu functions __init sparc64: remove unused function straddles_64bit_va_hole() ...
2012-07-26sparc32, copy_thread: Clear TIF_USEDFPU flag of created task instead of currentTkhai Kirill
FPU state is saved into task_struct of created task. Current task continues use of the state, so it needs TIF_USEDFPU flag is not cleared. Created task receives fresh FPU and cleared TIF_USEFPU flag is required for it. Signed-off-by: Kirill Tkhai <tkhai@yandex.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: delete dead code in show_mem()Sam Ravnborg
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: move kmap_init() to highmem.cSam Ravnborg
Try to keep highmem support in a more central place. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: move probe_memory() to srmmu.cSam Ravnborg
Only one user so move it to the file using it. It had nothing to do in fault_32. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: drop unused BAD_PAGE stuffSam Ravnborg
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: centralize all mmu context handling in srmmu.cSam Ravnborg
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: drop quicklistSam Ravnborg
The quicklist stuff is not used anymore - drop it. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: drop sparc model check in paging_initSam Ravnborg
We already check the model in head_32.S so no need to repeat the check here Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: drop sparc_unmapped_baseSam Ravnborg
The base is always the same so no need to use a variable for this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32,leon: drop leon_init()Sam Ravnborg
This function was only used to set of_pdt_build_more to leon_node_init(). But the leon_node_init() was a nop as prom_amba_init was never assigned. Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: drop fixmap.hSam Ravnborg
sparc32 does not support fixmaps - so do not pretend so by having the fixmap.h file. Move relevant parts to vaddrs.h. I looked at simplifying this even more but failed to understand the reasoning behind the extra guard page involved and due to missing testing possibilities only the trivial conversion was done. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: fixmap.h cleanupSam Ravnborg
Remove all unused stuff from fixmap.h It is only used for highmem - sparc32 has no fixmap support. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: drop unused kmap_atomic_to_pageSam Ravnborg
No users left of this function - drop it. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: drop swapper_pg_dirSam Ravnborg
We save one page of RAM dropping swapper_pg_dir. It was only used for an assignment in init-mm.c and we redid this later in srmmu.c anyway. This is likely a left-over from the sun4c removal. To avoid a dummy variable we use a simple #define swapper_pg_dir NULL Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: beautify srmmu_inherit_prom_mappings()Sam Ravnborg
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: use void * in nocache get/freeSam Ravnborg
This allowed to us to kill a lot of casts, with no loss of readability in any places Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: fix coding-style in srmmu.cSam Ravnborg
Fix the most annoying issues that distracts me: - whitespace - missing space after "if" and "while" - spaces around operators and similar simple things. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: sort includes in srmmu.cSam Ravnborg
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-26sparc32: define a few srmmu functions __initSam Ravnborg
They are only used during early init so lets get rid of them after init to save some RAM. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-24Merge tag 'for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds
Pull PCI changes from Bjorn Helgaas: "Host bridge hotplug: - Add MMCONFIG support for hot-added host bridges (Jiang Liu) Device hotplug: - Move fixups from __init to __devinit (Sebastian Andrzej Siewior) - Call FINAL fixups for hot-added devices, too (Myron Stowe) - Factor out generic code for P2P bridge hot-add (Yinghai Lu) - Remove all functions in a slot, not just those with _EJx (Amos Kong) Dynamic resource management: - Track bus number allocation (struct resource tree per domain) (Yinghai Lu) - Make P2P bridge 1K I/O windows work with resource reassignment (Bjorn Helgaas, Yinghai Lu) - Disable decoding while updating 64-bit BARs (Bjorn Helgaas) Power management: - Add PCIe runtime D3cold support (Huang Ying) Virtualization: - Add VFIO infrastructure (ACS, DMA source ID quirks) (Alex Williamson) - Add quirks for devices with broken INTx masking (Jan Kiszka) Miscellaneous: - Fix some PCI Express capability version issues (Myron Stowe) - Factor out some arch code with a weak, generic, pcibios_setup() (Myron Stowe)" * tag 'for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (122 commits) PCI: hotplug: ensure a consistent return value in error case PCI: fix undefined reference to 'pci_fixup_final_inited' PCI: build resource code for M68K architecture PCI: pciehp: remove unused pciehp_get_max_lnk_width(), pciehp_get_cur_lnk_width() PCI: reorder __pci_assign_resource() (no change) PCI: fix truncation of resource size to 32 bits PCI: acpiphp: merge acpiphp_debug and debug PCI: acpiphp: remove unused res_lock sparc/PCI: replace pci_cfg_fake_ranges() with pci_read_bridge_bases() PCI: call final fixups hot-added devices PCI: move final fixups from __init to __devinit x86/PCI: move final fixups from __init to __devinit MIPS/PCI: move final fixups from __init to __devinit PCI: support sizing P2P bridge I/O windows with 1K granularity PCI: reimplement P2P bridge 1K I/O windows (Intel P64H2) PCI: disable MEM decoding while updating 64-bit MEM BARs PCI: leave MEM and IO decoding disabled during 64-bit BAR sizing, too PCI: never discard enable/suspend/resume_early/resume fixups PCI: release temporary reference in __nv_msi_ht_cap_quirk() PCI: restructure 'pci_do_fixups()' ...
2012-07-24Merge tag 'dt-for-3.6' of git://sources.calxeda.com/kernel/linuxLinus Torvalds
Pull devicetree updates from Rob Herring: "A small set of changes for devicetree: - Couple of Documentation fixes - Addition of new helper function of_node_full_name - Improve of_parse_phandle_with_args return values - Some NULL related sparse fixes" Grant's busy packing. * tag 'dt-for-3.6' of git://sources.calxeda.com/kernel/linux: of: mtd: nuke useless const qualifier devicetree: add helper inline for retrieving a node's full name of: return -ENOENT when no property usage-model.txt: fix typo machine_init->init_machine of: Fix null pointer related warnings in base.c file LED: Fix missing semicolon in OF documentation of: fix a few typos in the binding documentation
2012-07-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking changes from David S Miller: 1) Remove the ipv4 routing cache. Now lookups go directly into the FIB trie and use prebuilt routes cached there. No more garbage collection, no more rDOS attacks on the routing cache. Instead we now get predictable and consistent performance, no matter what the pattern of traffic we service. This has been almost 2 years in the making. Special thanks to Julian Anastasov, Eric Dumazet, Steffen Klassert, and others who have helped along the way. I'm sure that with a change of this magnitude there will be some kind of fallout, but such things ought the be simple to fix at this point. Luckily I'm not European so I'll be around all of August to fix things :-) The major stages of this work here are each fronted by a forced merge commit whose commit message contains a top-level description of the motivations and implementation issues. 2) Pre-demux of established ipv4 TCP sockets, saves a route demux on input. 3) TCP SYN/ACK performance tweaks from Eric Dumazet. 4) Add namespace support for netfilter L4 conntrack helpers, from Gao Feng. 5) Add config mechanism for Energy Efficient Ethernet to ethtool, from Yuval Mintz. 6) Remove quadratic behavior from /proc/net/unix, from Eric Dumazet. 7) Support for connection tracker helpers in userspace, from Pablo Neira Ayuso. 8) Allow userspace driven TX load balancing functions in TEAM driver, from Jiri Pirko. 9) Kill off NLMSG_PUT and RTA_PUT macros, more gross stuff with embedded gotos. 10) TCP Small Queues, essentially minimize the amount of TCP data queued up in the packet scheduler layer. Whereas the existing BQL (Byte Queue Limits) limits the pkt_sched --> netdevice queuing levels, this controls the TCP --> pkt_sched queueing levels. From Eric Dumazet. 11) Reduce the number of get_page/put_page ops done on SKB fragments, from Alexander Duyck. 12) Implement protection against blind resets in TCP (RFC 5961), from Eric Dumazet. 13) Support the client side of TCP Fast Open, basically the ability to send data in the SYN exchange, from Yuchung Cheng. Basically, the sender queues up data with a sendmsg() call using MSG_FASTOPEN, then they do the connect() which emits the queued up fastopen data. 14) Avoid all the problems we get into in TCP when timers or PMTU events hit a locked socket. The TCP Small Queues changes added a tcp_release_cb() that allows us to queue work up to the release_sock() caller, and that's what we use here too. From Eric Dumazet. 15) Zero copy on TX support for TUN driver, from Michael S. Tsirkin. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1870 commits) genetlink: define lockdep_genl_is_held() when CONFIG_LOCKDEP r8169: revert "add byte queue limit support". ipv4: Change rt->rt_iif encoding. net: Make skb->skb_iif always track skb->dev ipv4: Prepare for change of rt->rt_iif encoding. ipv4: Remove all RTCF_DIRECTSRC handliing. ipv4: Really ignore ICMP address requests/replies. decnet: Don't set RTCF_DIRECTSRC. net/ipv4/ip_vti.c: Fix __rcu warnings detected by sparse. ipv4: Remove redundant assignment rds: set correct msg_namelen openvswitch: potential NULL deref in sample() tcp: dont drop MTU reduction indications bnx2x: Add new 57840 device IDs tcp: avoid oops in tcp_metrics and reset tcpm_stamp niu: Change niu_rbr_fill() to use unlikely() to check niu_rbr_add_page() return value niu: Fix to check for dma mapping errors. net: Fix references to out-of-scope variables in put_cmsg_compat() net: ethernet: davinci_emac: add pm_runtime support net: ethernet: davinci_emac: Remove unnecessary #include ...
2012-07-22Merge branch 'smp-hotplug-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull smp/hotplug changes from Ingo Molnar: "Various cleanups to the SMP hotplug code - a continuing effort of Thomas et al" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: smpboot: Remove leftover declaration smp: Remove num_booting_cpus() smp: Remove ipi_call_lock[_irq]()/ipi_call_unlock[_irq]() POWERPC: Smp: remove call to ipi_call_lock()/ipi_call_unlock() SPARC: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq() ia64: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq() x86-smp-remove-call-to-ipi_call_lock-ipi_call_unlock tile: SMP: Remove call to ipi_call_lock()/ipi_call_unlock() S390: Smp: remove call to ipi_call_lock()/ipi_call_unlock() parisc: Smp: remove call to ipi_call_lock()/ipi_call_unlock() mn10300: SMP: Remove call to ipi_call_lock()/ipi_call_unlock() hexagon: SMP: Remove call to ipi_call_lock()/ipi_call_unlock()
2012-07-10Merge branch 'pci/bjorn-p2p-bridge-windows' into nextBjorn Helgaas
* pci/bjorn-p2p-bridge-windows: sparc/PCI: replace pci_cfg_fake_ranges() with pci_read_bridge_bases() PCI: support sizing P2P bridge I/O windows with 1K granularity PCI: reimplement P2P bridge 1K I/O windows (Intel P64H2) PCI: allow P2P bridge windows starting at PCI bus address zero Conflicts: drivers/pci/probe.c include/linux/pci.h
2012-07-10sparc/PCI: replace pci_cfg_fake_ranges() with pci_read_bridge_bases()Bjorn Helgaas
The generic code to read P2P bridge windows is functionally equivalent to the sparc-specific pci_cfg_fake_ranges(), so use the generic code. The "if (!res->start) res->start = ..." removed from the I/O window code here was an artifact of the Intel 1K window support from 9d265124d051 and is no longer necessary (it probably was just cloned from x86 and was never useful on sparc). Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-07-09sparc64: remove unused function straddles_64bit_va_hole()Kirill Tkhai
Nobody uses straddles_64bit_va_hole(). Remove it Signed-off-by: Kirill Tkhai <tkhai@yandex.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-06devicetree: add helper inline for retrieving a node's full nameGrant Likely
The pattern (np ? np->full_name : "<none>") is rather common in the kernel, but can also make for quite long lines. This patch adds a new inline function, of_node_full_name() so that the test for a valid node pointer doesn't need to be open coded at all call sites. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-07-05Merge branch 'pci/myron-pcibios_setup' into nextBjorn Helgaas
* pci/myron-pcibios_setup: xtensa/PCI: factor out pcibios_setup() x86/PCI: adjust section annotations for pcibios_setup() unicore32/PCI: adjust section annotations for pcibios_setup() tile/PCI: factor out pcibios_setup() sparc/PCI: factor out pcibios_setup() sh/PCI: adjust section annotations for pcibios_setup() sh/PCI: factor out pcibios_setup() powerpc/PCI: factor out pcibios_setup() parisc/PCI: factor out pcibios_setup() MIPS/PCI: adjust section annotations for pcibios_setup() MIPS/PCI: factor out pcibios_setup() microblaze/PCI: factor out pcibios_setup() ia64/PCI: factor out pcibios_setup() cris/PCI: factor out pcibios_setup() alpha/PCI: factor out pcibios_setup() PCI: pull pcibios_setup() up into core
2012-07-05sparc/PCI: factor out pcibios_setup()Myron Stowe
The PCI core provides a generic pcibios_setup() routine. Drop this architecture-specific version in favor of that. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-06-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/caif/caif_hsi.c drivers/net/usb/qmi_wwan.c The qmi_wwan merge was trivial. The caif_hsi.c, on the other hand, was not. It's a conflict between 1c385f1fdf6f9c66d982802cd74349c040980b50 ("caif-hsi: Replace platform device with ops structure.") in the net-next tree and commit 39abbaef19cd0a30be93794aa4773c779c3eb1f3 ("caif-hsi: Postpone init of HIS until open()") in the net tree. I did my best with that one and will ask Sjur to check it out. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27sparc32: Remove superfluous extern declarations for prom_*() functionsGeert Uytterhoeven
prom_meminit() and prom_ranges_init() are declared in <asm/oplib_32.h>. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27sparc: Correct comments about prom_init() return valuesGeert Uytterhoeven
prom_init() returns void. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27sparc/PCI: remove unused pcibios_assign_resource() definitionBjorn Helgaas
pcibios_assign_resource() isn't used anywhere; remove it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27sparc64: Consistently use fsrc2 rather than fmovd in optimized asm.David S. Miller
Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-24Fix typo in printed messagesAnatol Pomozov
Coult -> Could Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-22Merge branch 'topic/bjorn-trivial' into nextBjorn Helgaas
* topic/bjorn-trivial: PCI: remove useless pcix_set_mmrbc() dev->bus check PCI: acpiphp: check whether _ADR evaluation succeeded PCI: shpchp: remove dead code PCI: fix P2P bridge I/O port window sign extension PCI: fix upstream P2P bridge checks when enabling OBFF and LTR PCI: use __weak consistently PCI: cleanup assign_requested_resources_sorted() kernel-doc warning sparc/PCI: remove unused pcibios_assign_resource() definition
2012-06-15sparc/PCI: remove unused pcibios_assign_resource() definitionBjorn Helgaas
pcibios_assign_resource() isn't used anywhere; remove it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-06-13sparc/PCI: register busn_res for root busesYinghai Lu
Add the host bridge bus number aperture to the resource list. Like the MMIO and I/O port apertures, this is used when assigning resources to hot-added devices or in the case of conflicts. [bhelgaas: changelog, fix "pci_last_busn" typo] Acked-by: "David S. Miller" <davem@davemloft.net> CC: sparclinux@vger.kernel.org Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-06-13PCI: replace struct pci_bus secondary/subordinate with busn_resYinghai Lu
Replace the struct pci_bus secondary/subordinate members with the struct resource busn_res. Later we'll build a resource tree of these bus numbers. [bhelgaas: changelog] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-06-11sparc: remove two unused headersPaul Bolle
Nothing includes these two headers. None of the macros they define are used anywhere in the tree. This was also the case in v2.6.12-rc2 and, presumably, every release in between. These two headers can safely be removed. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-06sparc bpf_jit: support BPF_S_ANC_ALU_XOR_X instructionDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-05SPARC: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq()Yong Zhang
ipi_call_lock/unlock() lock resp. unlock call_function.lock. This lock protects only the call_function data structure itself, but it's completely unrelated to cpu_online_mask. The mask to which the IPIs are sent is calculated before call_function.lock is taken in smp_call_function_many(), so the locking around set_cpu_online() is pointless and can be removed. Delay irq enable to after set_cpu_online(). [ tglx: Massaged changelog ] Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Cc: ralf@linux-mips.org Cc: sshtylyov@mvista.com Cc: david.daney@cavium.com Cc: nikunj@linux.vnet.ibm.com Cc: paulmck@linux.vnet.ibm.com Cc: axboe@kernel.dk Cc: peterz@infradead.org Cc: sparclinux@vger.kernel.org Link: http://lkml.kernel.org/r/20120529082732.GA4250@zhy Acked-by: "David S. Miller" <davem@davemloft.net> Acked-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2012-06-01Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull third pile of signal handling patches from Al Viro: "This time it's mostly helpers and conversions to them; there's a lot of stuff remaining in the tree, but that'll either go in -rc2 (isolated bug fixes, ideally via arch maintainers' trees) or will sit there until the next cycle." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: x86: get rid of calling do_notify_resume() when returning to kernel mode blackfin: check __get_user() return value whack-a-mole with TIF_FREEZE FRV: Optimise the system call exit path in entry.S [ver #2] FRV: Shrink TIF_WORK_MASK [ver #2] FRV: Prevent syscall exit tracing and notify_resume at end of kernel exceptions new helper: signal_delivered() powerpc: get rid of restore_sigmask() most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set set_restore_sigmask() is never called without SIGPENDING (and never should be) TIF_RESTORE_SIGMASK can be set only when TIF_SIGPENDING is set don't call try_to_freeze() from do_signal() pull clearing RESTORE_SIGMASK into block_sigmask() sh64: failure to build sigframe != signal without handler openrisc: tracehook_signal_handler() is supposed to be called on success new helper: sigmask_to_save() new helper: restore_saved_sigmask() new helpers: {clear,test,test_and_clear}_restore_sigmask() HAVE_RESTORE_SIGMASK is defined on all architectures now
2012-06-01Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs changes from Al Viro. "A lot of misc stuff. The obvious groups: * Miklos' atomic_open series; kills the damn abuse of ->d_revalidate() by NFS, which was the major stumbling block for all work in that area. * ripping security_file_mmap() and dealing with deadlocks in the area; sanitizing the neighborhood of vm_mmap()/vm_munmap() in general. * ->encode_fh() switched to saner API; insane fake dentry in mm/cleancache.c gone. * assorted annotations in fs (endianness, __user) * parts of Artem's ->s_dirty work (jff2 and reiserfs parts) * ->update_time() work from Josef. * other bits and pieces all over the place. Normally it would've been in two or three pull requests, but signal.git stuff had eaten a lot of time during this cycle ;-/" Fix up trivial conflicts in Documentation/filesystems/vfs.txt (the 'truncate_range' inode method was removed by the VM changes, the VFS update adds an 'update_time()' method), and in fs/btrfs/ulist.[ch] (due to sparse fix added twice, with other changes nearby). * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (95 commits) nfs: don't open in ->d_revalidate vfs: retry last component if opening stale dentry vfs: nameidata_to_filp(): don't throw away file on error vfs: nameidata_to_filp(): inline __dentry_open() vfs: do_dentry_open(): don't put filp vfs: split __dentry_open() vfs: do_last() common post lookup vfs: do_last(): add audit_inode before open vfs: do_last(): only return EISDIR for O_CREAT vfs: do_last(): check LOOKUP_DIRECTORY vfs: do_last(): make ENOENT exit RCU safe vfs: make follow_link check RCU safe vfs: do_last(): use inode variable vfs: do_last(): inline walk_component() vfs: do_last(): make exit RCU safe vfs: split do_lookup() Btrfs: move over to use ->update_time fs: introduce inode operation ->update_time reiserfs: get rid of resierfs_sync_super reiserfs: mark the superblock as dirty a bit later ...
2012-06-01new helper: signal_delivered()Al Viro
Does block_sigmask() + tracehook_signal_handler(); called when sigframe has been successfully built. All architectures converted to it; block_sigmask() itself is gone now (merged into this one). I'm still not too happy with the signature, but that's a separate story (IMO we need a structure that would contain signal number + siginfo + k_sigaction, so that get_signal_to_deliver() would fill one, signal_delivered(), handle_signal() and probably setup...frame() - take one). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from setAl Viro
Only 3 out of 63 do not. Renamed the current variant to __set_current_blocked(), added set_current_blocked() that will exclude unblockable signals, switched open-coded instances to it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01set_restore_sigmask() is never called without SIGPENDING (and never should be)Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01TIF_RESTORE_SIGMASK can be set only when TIF_SIGPENDING is setAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01pull clearing RESTORE_SIGMASK into block_sigmask()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>