- 12 Jan, 2012 2 commits
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git://neil.brown.name/mdLinus Torvalds authored
Two bugfixes for md. One is a recently introduced regression that affects an unusual configuration with a guaranteed BUG_ON. Has been tagged for -stable. The other is minor missing functionality. * tag 'md-3.3-fixes' of git://neil.brown.name/md: md/raid1: perform bad-block tests for WriteMostly devices too. md: notify the 'degraded' sysfs attribute on failure.
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pciLinus Torvalds authored
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits) x86/PCI: Expand the x86_msi_ops to have a restore MSIs. PCI: Increase resource array mask bit size in pcim_iomap_regions() PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT) PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB x86/PCI: amd: factor out MMCONFIG discovery PCI: Enable ATS at the device state restore PCI: msi: fix imbalanced refcount of msi irq sysfs objects PCI: kconfig: English typo in pci/pcie/Kconfig PCI/PM/Runtime: make PCI traces quieter PCI: remove pci_create_bus() xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus() x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented() x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources sparc/PCI: convert to pci_create_root_bus() sh/PCI: convert to pci_scan_root_bus() for correct root bus resources powerpc/PCI: convert to pci_create_root_bus() powerpc/PCI: split PHB part out of pcibios_map_io_space() ... Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due to the same patches being applied in other branches.
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- 11 Jan, 2012 38 commits
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Ben Hutchings authored
frv, h8300, m68k, microblaze, openrisc, score, um and xtensa currently do not register a CPU device. Add the config option GENERIC_CPU_DEVICES which causes a generic CPU device to be registered for each present CPU, and make all these architectures select it. Richard Weinberger <richard@nod.at> covered UML and suggested using per_cpu. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Ben Hutchings authored
cpu_dev_init() is only called from driver_init(), which does not check its return value. Therefore make cpu_dev_init() return void. We must register the CPU subsystem, so panic if this fails. If sched_create_sysfs_power_savings_entries() fails, the damage is contained, so ignore this (as before). Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (54 commits) crypto: gf128mul - remove leftover "(EXPERIMENTAL)" in Kconfig crypto: serpent-sse2 - remove unneeded LRW/XTS #ifdefs crypto: serpent-sse2 - select LRW and XTS crypto: twofish-x86_64-3way - remove unneeded LRW/XTS #ifdefs crypto: twofish-x86_64-3way - select LRW and XTS crypto: xts - remove dependency on EXPERIMENTAL crypto: lrw - remove dependency on EXPERIMENTAL crypto: picoxcell - fix boolean and / or confusion crypto: caam - remove DECO access initialization code crypto: caam - fix polarity of "propagate error" logic crypto: caam - more desc.h cleanups crypto: caam - desc.h - convert spaces to tabs crypto: talitos - convert talitos_error to struct device crypto: talitos - remove NO_IRQ references crypto: talitos - fix bad kfree crypto: convert drivers/crypto/* to use module_platform_driver() char: hw_random: convert drivers/char/hw_random/* to use module_platform_driver() crypto: serpent-sse2 - should select CRYPTO_CRYPTD crypto: serpent - rename serpent.c to serpent_generic.c crypto: serpent - cleanup checkpatch errors and warnings ...
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git://selinuxproject.org/~jmorris/linux-securityLinus Torvalds authored
* 'for-linus' of git://selinuxproject.org/~jmorris/linux-security: (32 commits) ima: fix invalid memory reference ima: free duplicate measurement memory security: update security_file_mmap() docs selinux: Casting (void *) value returned by kmalloc is useless apparmor: fix module parameter handling Security: tomoyo: add .gitignore file tomoyo: add missing rcu_dereference() apparmor: add missing rcu_dereference() evm: prevent racing during tfm allocation evm: key must be set once during initialization mpi/mpi-mpow: NULL dereference on allocation failure digsig: build dependency fix KEYS: Give key types their own lockdep class for key->sem TPM: fix transmit_cmd error logic TPM: NSC and TIS drivers X86 dependency fix TPM: Export wait_for_stat for other vendor specific drivers TPM: Use vendor specific function for status probe tpm_tis: add delay after aborting command tpm_tis: Check return code from getting timeouts/durations tpm: Introduce function to poll for result of self test ... Fix up trivial conflict in lib/Makefile due to addition of CONFIG_MPI and SIGSIG next to CONFIG_DQL addition.
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: autofs4: deal with autofs4_write/autofs4_write races autofs4: catatonic_mode vs. notify_daemon race autofs4: autofs4_wait() vs. autofs4_catatonic_mode() race hfsplus: creation of hidden dir on mount can fail block_dev: Suppress bdev_cache_init() kmemleak warninig fix shrink_dcache_parent() livelock coda: switch coda_cnode_make() to sane API as well, clean coda_lookup() coda: deal correctly with allocation failure from coda_cnode_makectl() securityfs: fix object creation races
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Al Viro authored
Just serialize the actual writing of packets into pipe on a new mutex, independent from everything else in the locking hierarchy. As soon as something has started feeding a piece of packet into the pipe to daemon, we *want* everything else about to try the same to wait until we are done. Acked-by:
Ian Kent <raven@themaw.net> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
we need to hold ->wq_mutex while we are forming the packet to send, lest we have autofs4_catatonic_mode() setting wq->name.name to NULL just as autofs4_notify_daemon() decides to memcpy() from it... We do have check for catatonic mode immediately after that (under ->wq_mutex, as it ought to be) and packet won't be actually sent, but it'll be too late for us if we oops on that memcpy() from NULL... Fix is obvious - just extend the area covered by ->wq_mutex over that switch and check whether it's catatonic *before* doing anything else. Acked-by:
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Al Viro authored
We need to recheck ->catatonic after autofs4_wait() got ->wq_mutex for good, or we might end up with wq inserted into queue after autofs4_catatonic_mode() had done its thing. It will stick there forever, since there won't be anything to clear its ->name.name. A bit of a complication: validate_request() drops and regains ->wq_mutex. It actually ends up the most convenient place to stick the check into... Acked-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
lib: use generic pci_iomap on all architectures Many architectures don't want to pull in iomap.c, so they ended up duplicating pci_iomap from that file. That function isn't trivial, and we are going to modify it https://lkml.org/lkml/2011/11/14/183 so the duplication hurts. This reduces the scope of the problem significantly, by moving pci_iomap to a separate file and referencing that from all architectures. * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: alpha: drop pci_iomap/pci_iounmap from pci-noop.c mn10300: switch to GENERIC_PCI_IOMAP mn10300: add missing __iomap markers frv: switch to GENERIC_PCI_IOMAP tile: switch to GENERIC_PCI_IOMAP tile: don't panic on iomap sparc: switch to GENERIC_PCI_IOMAP sh: switch to GENERIC_PCI_IOMAP powerpc: switch to GENERIC_PCI_IOMAP parisc: switch to GENERIC_PCI_IOMAP mips: switch to GENERIC_PCI_IOMAP microblaze: switch to GENERIC_PCI_IOMAP arm: switch to GENERIC_PCI_IOMAP alpha: switch to GENERIC_PCI_IOMAP lib: add GENERIC_PCI_IOMAP lib: move GENERIC_IOMAP to lib/Kconfig Fix up trivial conflicts due to changes nearby in arch/{m68k,score}/Kconfig
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git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds authored
* tag 'for-linux-3.3-merge-window' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: (29 commits) C6X: replace tick_nohz_stop/restart_sched_tick calls C6X: add register_cpu call C6X: deal with memblock API changes C6X: fix timer64 initialization C6X: fix layout of EMIFA registers C6X: MAINTAINERS C6X: DSCR - Device State Configuration Registers C6X: EMIF - External Memory Interface C6X: general SoC support C6X: library code C6X: headers C6X: ptrace support C6X: loadable module support C6X: cache control C6X: clocks C6X: build infrastructure C6X: syscalls C6X: interrupt handling C6X: time management C6X: signal management ...
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git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds authored
* 'next' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Wire-up new system calls microblaze: Remove NO_IRQ from architecture input: xilinx_ps2: Don't use NO_IRQ block: xsysace: Don't use NO_IRQ microblaze: Trivial asm fix microblaze: Fix debug message in module microblaze: Remove eprintk macro microblaze: Send CR before LF for early console microblaze: Change NO_IRQ to 0 microblaze: Use irq_of_parse_and_map for timer microblaze: intc: Change variable name microblaze: Use of_find_compatible_node for timer and intc microblaze: Add __cmpdi2 microblaze: Synchronize __pa __va macros
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git://github.com/gxt/linuxLinus Torvalds authored
* 'unicore32' of git://github.com/gxt/linux: rtc-puv3: solve section mismatch in rtc-puv3.c rtc-puv3: using module_platform_driver() i2c-puv3: using module_platform_driver() rtc-puv3: irq: remove IRQF_DISABLED unicore32: Remove IRQF_DISABLED unicore32: Use set_current_blocked() unicore32: add ioremap_nocache definition unicore32: delete specified xlate_dev_mem_ptr of: add include asm/setup.h in drivers/of/fdt.c unicore32: standardize /proc/iomem "Kernel code" name
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git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfinLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin: blackfin: bf561: add adv7183 capture support blackfin: bf537: add capture support blackfin: bf548: add capture support blackfin: time-ts: rm unused func broadcast_timer_setup() blackfin: i2c-lcd: change default clock rate blackfin: mac: dsa: add vlan mask in board file blackfin: bf537: change num_chipselect for spi-sport blackfin: serial: bfin-uart: remove unused field bf54x: get mem size: missing break in switch blackfin: smp: fix msg queue overflow issue blackfin: config: update macro SPI_BFIN in board file blackfin: config: update def config for all boards blackfin: smp: cleanup smp code blackfin: smp: add suspend and wakeup irq flags blackfin: bf533-stamp: add missed patches for new asoc driver blackfin: bf533-stamp: fix ad1836 name
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git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linuxLinus Torvalds authored
* 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux: writeback: move MIN_WRITEBACK_PAGES to fs-writeback.c writeback: balanced_rate cannot exceed write bandwidth writeback: do strict bdi dirty_exceeded writeback: avoid tiny dirty poll intervals writeback: max, min and target dirty pause time writeback: dirty ratelimit - think time compensation btrfs: fix dirtied pages accounting on sub-page writes writeback: fix dirtied pages accounting on redirty writeback: fix dirtied pages accounting on sub-page writes writeback: charge leaked page dirties to active tasks writeback: Include all dirty inodes in background writeback
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Linus Torvalds authored
Andrew elucidates: - First installmeant of MM. We have a HUGE number of MM patches this time. It's crazy. - MAINTAINERS updates - backlight updates - leds - checkpatch updates - misc ELF stuff - rtc updates - reiserfs - procfs - some misc other bits * akpm: (124 commits) user namespace: make signal.c respect user namespaces workqueue: make alloc_workqueue() take printf fmt and args for name procfs: add hidepid= and gid= mount options procfs: parse mount options procfs: introduce the /proc/<pid>/map_files/ directory procfs: make proc_get_link to use dentry instead of inode signal: add block_sigmask() for adding sigmask to current->blocked sparc: make SA_NOMASK a synonym of SA_NODEFER reiserfs: don't lock root inode searching reiserfs: don't lock journal_init() reiserfs: delay reiserfs lock until journal initialization reiserfs: delete comments referring to the BKL drivers/rtc/interface.c: fix alarm rollover when day or month is out-of-range drivers/rtc/rtc-twl.c: add DT support for RTC inside twl4030/twl6030 drivers/rtc/: remove redundant spi driver bus initialization drivers/rtc/rtc-jz4740.c: make jz4740_rtc_driver static drivers/rtc/rtc-mc13xxx.c: make mc13xxx_rtc_idtable static rtc: convert drivers/rtc/* to use module_platform_driver() drivers/rtc/rtc-wm831x.c: convert to devm_kzalloc() drivers/rtc/rtc-wm831x.c: remove unused period IRQ handler ...
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Serge E. Hallyn authored
ipc/mqueue.c: for __SI_MESQ, convert the uid being sent to recipient's user namespace. (new, thanks Oleg) __send_signal: convert current's uid to the recipient's user namespace for any siginfo which is not SI_FROMKERNEL (patch from Oleg, thanks again :) do_notify_parent and do_notify_parent_cldstop: map task's uid to parent's user namespace ptrace_signal maps parent's uid into current's user namespace before including in signal to current. IIUC Oleg has argued that this shouldn't matter as the debugger will play with it, but it seems like not converting the value currently being set is misleading. Changelog: Sep 20: Inspired by Oleg's suggestion, define map_cred_ns() helper to simplify callers and help make clear what we are translating (which uid into which namespace). Passing the target task would make callers even easier to read, but we pass in user_ns because current_user_ns() != task_cred_xxx(current, user_ns). Sep 20: As recommended by Oleg, also put task_pid_vnr() under rcu_read_lock in ptrace_signal(). Sep 23: In send_signal(), detect when (user) signal is coming from an ancestor or unrelated user namespace. Pass that on to __send_signal, which sets si_uid to 0 or overflowuid if needed. Oct 12: Base on Oleg's fixup_uid() patch. On top of that, handle all SI_FROMKERNEL cases at callers, because we can't assume sender is current in those cases. Nov 10: (mhelsley) rename fixup_uid to more meaningful usern_fixup_signal_uid Nov 10: (akpm) make the !CONFIG_USER_NS case clearer Signed-off-by:Serge Hallyn <serge.hallyn@canonical.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Matt Helsley <matthltc@us.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> From: Serge Hallyn <serge.hallyn@canonical.com> Subject: __send_signal: pass q->info, not info, to userns_fixup_signal_uid (v2) Eric Biederman pointed out that passing info is a bug and could lead to a NULL pointer deref to boot. A collection of signal, securebits, filecaps, cap_bounds, and a few other ltp tests passed with this kernel. Changelog: Nov 18: previous patch missed a leading '&' Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Matt Helsley <matthltc@us.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by:
Serge Hallyn <serge@hallyn.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Tejun Heo authored
alloc_workqueue() currently expects the passed in @name pointer to remain accessible. This is inconvenient and a bit silly given that the whole wq is being dynamically allocated. This patch updates alloc_workqueue() and friends to take printf format string instead of opaque string and matching varargs at the end. The name is allocated together with the wq and formatted. alloc_ordered_workqueue() is converted to a macro to unify varargs handling with alloc_workqueue(), and, while at it, add comment to alloc_workqueue(). None of the current in-kernel users pass in string with '%' as constant name and this change shouldn't cause any problem. [akpm@linux-foundation.org: use __printf] Signed-off-by:
Tejun Heo <tj@kernel.org> Suggested-by:
Christoph Hellwig <hch@infradead.org> Signed-off-by:
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Vasiliy Kulikov authored
Add support for mount options to restrict access to /proc/PID/ directories. The default backward-compatible "relaxed" behaviour is left untouched. The first mount option is called "hidepid" and its value defines how much info about processes we want to be available for non-owners: hidepid=0 (default) means the old behavior - anybody may read all world-readable /proc/PID/* files. hidepid=1 means users may not access any /proc/<pid>/ directories, but their own. Sensitive files like cmdline, sched*, status are now protected against other users. As permission checking done in proc_pid_permission() and files' permissions are left untouched, programs expecting specific files' modes are not confused. hidepid=2 means hidepid=1 plus all /proc/PID/ will be invisible to other users. It doesn't mean that it hides whether a process exists (it can be learned by other means, e.g. by kill -0 $PID), but it hides process' euid and egid. It compicates intruder's task of gathering info about running processes, whether some daemon runs with elevated privileges, whether another user runs some sensitive program, whether other users run any program at all, etc. gid=XXX defines a group that will be able to gather all processes' info (as in hidepid=0 mode). This group should be used instead of putting nonroot user in sudoers file or something. However, untrusted users (like daemons, etc.) which are not supposed to monitor the tasks in the whole system should not be added to the group. hidepid=1 or higher is designed to restrict access to procfs files, which might reveal some sensitive private information like precise keystrokes timings: http://www.openwall.com/lists/oss-security/2011/11/05/3 hidepid=1/2 doesn't break monitoring userspace tools. ps, top, pgrep, and conky gracefully handle EPERM/ENOENT and behave as if the current user is the only user running processes. pstree shows the process subtree which contains "pstree" process. Note: the patch doesn't deal with setuid/setgid issues of keeping preopened descriptors of procfs files (like https://lkml.org/lkml/2011/2/7/368). We rely on that the leaked information like the scheduling counters of setuid apps doesn't threaten anybody's privacy - only the user started the setuid program may read the counters. Signed-off-by:
Vasiliy Kulikov <segoon@openwall.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Greg KH <greg@kroah.com> Cc: Theodore Tso <tytso@MIT.EDU> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: James Morris <jmorris@namei.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by:
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Vasiliy Kulikov authored
Add support for procfs mount options. Actual mount options are coming in the next patches. Signed-off-by:
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Pavel Emelyanov authored
This one behaves similarly to the /proc/<pid>/fd/ one - it contains symlinks one for each mapping with file, the name of a symlink is "vma->vm_start-vma->vm_end", the target is the file. Opening a symlink results in a file that point exactly to the same inode as them vma's one. For example the ls -l of some arbitrary /proc/<pid>/map_files/ | lr-x------ 1 root root 64 Aug 26 06:40 7f8f80403000-7f8f80404000 -> /lib64/libc-2.5.so | lr-x------ 1 root root 64 Aug 26 06:40 7f8f8061e000-7f8f80620000 -> /lib64/libselinux.so.1 | lr-x------ 1 root root 64 Aug 26 06:40 7f8f80826000-7f8f80827000 -> /lib64/libacl.so.1.1.0 | lr-x------ 1 root root 64 Aug 26 06:40 7f8f80a2f000-7f8f80a30000 -> /lib64/librt-2.5.so | lr-x------ 1 root root 64 Aug 26 06:40 7f8f80a30000-7f8f80a4c000 -> /lib64/ld-2.5.so This *helps* checkpointing process in three ways: 1. When dumping a task mappings we do know exact file that is mapped by particular region. We do this by opening /proc/$pid/map_files/$address symlink the way we do with file descriptors. 2. This also helps in determining which anonymous shared mappings are shared with each other by comparing the inodes of them. 3. When restoring a set of processes in case two of them has a mapping shared, we map the memory by the 1st one and then open its /proc/$pid/map_files/$address file and map it by the 2nd task. Using /proc/$pid/maps for this is quite inconvenient since it brings repeatable re-reading and reparsing for this text file which slows down restore procedure significantly. Also as being pointed in (3) it is a way easier to use top level shared mapping in children as /proc/$pid/map_files/$address when needed. [akpm@linux-foundation.org: coding-style fixes] [gorcunov@openvz.org: make map_files depend on CHECKPOINT_RESTORE] Signed-off-by:
Pavel Emelyanov <xemul@parallels.com> Signed-off-by:
Cyrill Gorcunov <gorcunov@openvz.org> Reviewed-by:
"Kirill A. Shutemov" <kirill@shutemov.name> Cc: Tejun Heo <tj@kernel.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by:
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Cyrill Gorcunov authored
Prepare the ground for the next "map_files" patch which needs a name of a link file to analyse. Signed-off-by:
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Matt Fleming authored
Abstract the code sequence for adding a signal handler's sa_mask to current->blocked because the sequence is identical for all architectures. Furthermore, in the past some architectures actually got this code wrong, so introduce a wrapper that all architectures can use. Signed-off-by:
Matt Fleming <matt.fleming@intel.com> Signed-off-by:
Oleg Nesterov <oleg@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Tejun Heo <tj@kernel.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by:
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Matt Fleming authored
Unlike other architectures, sparc currently has no SA_NODEFER definition but only the older SA_NOMASK. Since SA_NOMASK is the historical name for SA_NODEFER, add SA_NODEFER and copy what other architectures do by making SA_NOMASK a synonym for SA_NODEFER. Signed-off-by:
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Frederic Weisbecker authored
Nothing requires that we lock the filesystem until the root inode is provided. Also iget5_locked() triggers a warning because we are holding the filesystem lock while allocating the inode, which result in a lockdep suspicion that we have a lock inversion against the reclaim path: [ 1986.896979] ================================= [ 1986.896990] [ INFO: inconsistent lock state ] [ 1986.896997] 3.1.1-main #8 [ 1986.897001] --------------------------------- [ 1986.897007] inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage. [ 1986.897016] kswapd0/16 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 1986.897023] (&REISERFS_SB(s)->lock){+.+.?.}, at: [<c01f8bd4>] reiserfs_write_lock+0x20/0x2a [ 1986.897044] {RECLAIM_FS-ON-W} state was registered at: [ 1986.897050] [<c014a5b9>] mark_held_locks+0xae/0xd0 [ 1986.897060] [<c014aab3>] lockdep_trace_alloc+0x7d/0x91 [ 1986.897068] [<c0190ee0>] kmem_cache_alloc+0x1a/0x93 [ 1986.897078] [<c01e7728>] reiserfs_alloc_inode+0x13/0x3d [ 1986.897088] [<c01a5b06>] alloc_inode+0x14/0x5f [ 1986.897097] [<c01a5cb9>] iget5_locked+0x62/0x13a [ 1986.897106] [<c01e99e0>] reiserfs_fill_super+0x410/0x8b9 [ 1986.897114] [<c01953da>] mount_bdev+0x10b/0x159 [ 1986.897123] [<c01e764d>] get_super_block+0x10/0x12 [ 1986.897131] [<c0195b38>] mount_fs+0x59/0x12d [ 1986.897138] [<c01a80d1>] vfs_kern_mount+0x45/0x7a [ 1986.897147] [<c01a83e3>] do_kern_mount+0x2f/0xb0 [ 1986.897155] [<c01a987a>] do_mount+0x5c2/0x612 [ 1986.897163] [<c01a9a72>] sys_mount+0x61/0x8f [ 1986.897170] [<c044060c>] sysenter_do_call+0x12/0x32 [ 1986.897181] irq event stamp: 7509691 [ 1986.897186] hardirqs last enabled at (7509691): [<c0190f34>] kmem_cache_alloc+0x6e/0x93 [ 1986.897197] hardirqs last disabled at (7509690): [<c0190eea>] kmem_cache_alloc+0x24/0x93 [ 1986.897209] softirqs last enabled at (7508896): [<c01294bd>] __do_softirq+0xee/0xfd [ 1986.897222] softirqs last disabled at (7508859): [<c01030ed>] do_softirq+0x50/0x9d [ 1986.897234] [ 1986.897235] other info that might help us debug this: [ 1986.897242] Possible unsafe locking scenario: [ 1986.897244] [ 1986.897250] CPU0 [ 1986.897254] ---- [ 1986.897257] lock(&REISERFS_SB(s)->lock); [ 1986.897265] <Interrupt> [ 1986.897269] lock(&REISERFS_SB(s)->lock); [ 1986.897276] [ 1986.897277] *** DEADLOCK *** [ 1986.897278] [ 1986.897286] no locks held by kswapd0/16. [ 1986.897291] [ 1986.897292] stack backtrace: [ 1986.897299] Pid: 16, comm: kswapd0 Not tainted 3.1.1-main #8 [ 1986.897306] Call Trace: [ 1986.897314] [<c0439e76>] ? printk+0xf/0x11 [ 1986.897324] [<c01482d1>] print_usage_bug+0x20e/0x21a [ 1986.897332] [<c01479b8>] ? print_irq_inversion_bug+0x172/0x172 [ 1986.897341] [<c014855c>] mark_lock+0x27f/0x483 [ 1986.897349] [<c0148d88>] __lock_acquire+0x628/0x1472 [ 1986.897358] [<c0149fae>] lock_acquire+0x47/0x5e [ 1986.897366] [<c01f8bd4>] ? reiserfs_write_lock+0x20/0x2a [ 1986.897384] [<c01f8bd4>] ? reiserfs_write_lock+0x20/0x2a [ 1986.897397] [<c043b5ef>] mutex_lock_nested+0x35/0x26f [ 1986.897409] [<c01f8bd4>] ? reiserfs_write_lock+0x20/0x2a [ 1986.897421] [<c01f8bd4>] reiserfs_write_lock+0x20/0x2a [ 1986.897433] [<c01e2edd>] map_block_for_writepage+0xc9/0x590 [ 1986.897448] [<c01b1706>] ? create_empty_buffers+0x33/0x8f [ 1986.897461] [<c0121124>] ? get_parent_ip+0xb/0x31 [ 1986.897472] [<c043ef7f>] ? sub_preempt_count+0x81/0x8e [ 1986.897485] [<c043cae0>] ? _raw_spin_unlock+0x27/0x3d [ 1986.897496] [<c0121124>] ? get_parent_ip+0xb/0x31 [ 1986.897508] [<c01e355d>] reiserfs_writepage+0x1b9/0x3e7 [ 1986.897521] [<c0173b40>] ? clear_page_dirty_for_io+0xcb/0xde [ 1986.897533] [<c014a6e3>] ? trace_hardirqs_on_caller+0x108/0x138 [ 1986.897546] [<c014a71e>] ? trace_hardirqs_on+0xb/0xd [ 1986.897559] [<c0177b38>] shrink_page_list+0x34f/0x5e2 [ 1986.897572] [<c01780a7>] shrink_inactive_list+0x172/0x22c [ 1986.897585] [<c0178464>] shrink_zone+0x303/0x3b1 [ 1986.897597] [<c043cae0>] ? _raw_spin_unlock+0x27/0x3d [ 1986.897611] [<c01788c9>] kswapd+0x3b7/0x5f2 The deadlock shouldn't happen since we are doing that allocation in the mount path, the filesystem is not available for any reclaim. Still the warning is annoying. To solve this, acquire the lock later only where we need it, right before calling reiserfs_read_locked_inode() that wants to lock to walk the tree. Reported-by:Knut Petersen <Knut_Petersen@t-online.de> Signed-off-by:
Frederic Weisbecker <fweisbec@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by:
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Frederic Weisbecker authored
journal_init() doesn't need the lock since no operation on the filesystem is involved there. journal_read() and get_list_bitmap() have yet to be reviewed carefully though before removing the lock there. Just keep the it around these two calls for safety. Signed-off-by:
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Frederic Weisbecker authored
In the mount path, transactions that are made before journal initialization don't involve the filesystem. We can delay the reiserfs lock until we play with the journal. Signed-off-by:
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Davidlohr Bueso authored
Signed-off-by:
Davidlohr Bueso <dave@gnu.org> Cc: Jan Kara <jack@suse.cz> Signed-off-by:
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Ben Hutchings authored
Commit f44f7f96 ("RTC: Initialize kernel state from RTC") introduced a potential infinite loop. If an alarm time contains a wildcard month and an invalid day (> 31), or a wildcard year and an invalid month (>= 12), the loop searching for the next matching date will never terminate. Treat the invalid values as wildcards. Fixes <http://bugs.debian.org/646429>, <http://bugs.debian.org/653331> Reported-by:
leo weppelman <leoweppelman@googlemail.com> Reported-by:
"P. van Gaans" <mailme667@yahoo.co.uk> Signed-off-by:
Jonathan Nieder <jrnieder@gmail.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> Acked-by:
Alessandro Zummo <a.zummo@towertech.it> Cc: <stable@vger.kernel.org> Signed-off-by:
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Benoit Cousson authored
Add the DT support for the TI rtc-twl present in the twl4030 and twl6030 devices. Signed-off-by:
Benoit Cousson <b-cousson@ti.com> Acked-by:
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Lars-Peter Clausen authored
In ancient times it was necessary to manually initialize the bus field of an spi_driver to spi_bus_type. These days this is done in spi_driver_register(), so we can drop the manual assignment. The patch was generated using the following coccinelle semantic patch: // <smpl> @@ identifier _driver; @@ struct spi_driver _driver = { .driver = { - .bus = &spi_bus_type, }, }; // </smpl> Signed-off-by:Lars-Peter Clausen <lars@metafoo.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by:
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Axel Lin authored
Signed-off-by:
Axel Lin <axel.lin@gmail.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
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Axel Lin authored
Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Acked-by:
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by:
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Axel Lin authored
This patch converts the drivers in drivers/rtc/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Signed-off-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by:
Mike Frysinger <vapier@gentoo.org> Acked-by:
Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Acked-by:
Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Ben Dooks <ben@simtec.co.uk> Cc: John Stultz <john.stultz@linaro.org> Acked-by:
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Mark Brown authored
Marginally less code and eliminate the possibility of memory leaks. Signed-off-by:
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Mark Brown authored
Due to changes in the RTC core the period interrupt is now unused so delete the code managing it. Signed-off-by:
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Mark Godfrey authored
The rtc_calibration attribute allows user-space to get and set the AB8500's RtcCalibration register. The AB8500 will then use the value in this register to compensate for RTC drift every 60 seconds. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
Mark Godfrey <mark.godfrey@stericsson.com> Signed-off-by:
Linus Walleij <linus.walleij@stericsson.com> Acked-by:
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Linus Walleij authored
The resolution of msleep is related to HZ, so with HZ set to 100 any msleep of less than 10ms will become ~10ms. This is not what we want. Use the hrtimer-based usleep_range() and allow for some slack in the non-critical path so we have more control of what is happening here. Signed-off-by:
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Andrew Lynn authored
Set can_wake flag so wakealarm property is visible in sysfs. Signed-off-by:
Andrew Lynn <andrew.lynn@stericsson.com> Reviewed-by:
Jonas ABERG <jonas.aberg@stericsson.com> Signed-off-by:
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