linux/kernel, branch v3.4-rc3

Merge branch 'systemh-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2012-04-14T02:44:36Z

Pull system.h fixups for less common arch's from Paul Gortmaker: "Here is what is hopefully the last of the system.h related fixups. The fixes for Alpha and ia64 are code relocations consistent with what was done for the more mainstream architectures. Note that the diffstat lines removed vs lines added are not the same since I've fixed some of the whitespace issues in the relocated code blocks. However they are functionally the same. Compile tested locally, plus these two have been in linux-next for a while. There is also a trivial one line system.h related fix for the Tilera arch from Chris Metcalf to fix an implict include.." * 'systemh-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: irq_work: fix compile failure on tile from missing include ia64: populate the cmpxchg header with appropriate code alpha: fix build failures from system.h dismemberment

irq_work: fix compile failure on tile from missing include

2012-04-13T17:15:16Z

Building with IRQ_WORK configured results in kernel/irq_work.c: In function ‘irq_work_run’: kernel/irq_work.c:110: error: implicit declaration of function ‘irqs_disabled’ The appropriate header just needs to be included. Signed-off-by: Chris Metcalf Signed-off-by: Paul Gortmaker

Merge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6

2012-04-12T22:33:16Z

Pull a fix for the recent irqdomain bug fixes from Grant Likely: "I flubbed one patch in the last pull request which broke a format string on 64 bit platforms. Here's the fix." * tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6: irq_domain: fix type mismatch in debugfs output format

irq_domain: fix type mismatch in debugfs output format

2012-04-12T22:25:48Z

sizeof(void*) returns an unsigned long, but it was being used as a width parameter to a "%-*s" format string which requires an int. On 64 bit platforms this causes a type mismatch: linux/kernel/irq/irqdomain.c:575: warning: field width should have type 'int', but argument 6 has type 'long unsigned int' This change casts the size to an int so printf gets the right data type. Reported-by: Andreas Schwab Signed-off-by: Grant Likely Cc: David Daney

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-04-12T22:16:26Z

Pull timer fixes from Thomas Gleixner: "The itimer removal one is not strictly a fix, but I really wanted to avoid a rebase of the urgent ones." * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert "clocksource: Load the ACPI PM clocksource asynchronously" clockevents: tTack broadcast device mode change in tick_broadcast_switch_to_oneshot() itimer: Use printk_once instead of WARN_ONCE nohz: Fix stale jiffies update in tick_nohz_restart() tick: Document TICK_ONESHOT config option proc: stats: Use arch_idle_time for idle and iowait times if available itimer: Schedule silent NULL pointer fixup in setitimer() for removal

Merge branch 'akpm' (Andrew's patch-bomb)

2012-04-12T21:15:21Z

Merge fixes from Andrew Morton. * emailed from Andrew Morton : (14 patches) panic: fix stack dump print on direct call to panic() drivers/rtc/rtc-pl031.c: enable clock on all ST variants Revert "mm: vmscan: fix misused nr_reclaimed in shrink_mem_cgroup_zone()" hugetlb: fix race condition in hugetlb_fault() drivers/rtc/rtc-twl.c: use static register while reading time drivers/rtc/rtc-s3c.c: add placeholder for driver private data drivers/rtc/rtc-s3c.c: fix compilation error MAINTAINERS: add PCDP console maintainer memcg: do not open code accesses to res_counter members drivers/rtc/rtc-efi.c: fix section mismatch warning drivers/rtc/rtc-r9701.c: reset registers if invalid values are detected drivers/char/random.c: fix boot id uniqueness race memcg: fix broken boolen expression memcg: fix up documentation on global LRU

panic: fix stack dump print on direct call to panic()

2012-04-12T20:12:12Z

Commit 6e6f0a1f0fa6 ("panic: don't print redundant backtraces on oops") causes a regression where no stack trace will be printed at all for the case where kernel code calls panic() directly while not processing an oops, and of course there are 100's of instances of this type of call. The original commit executed the check (!oops_in_progress), but this will always be false because just before the dump_stack() there is a call to bust_spinlocks(1), which does the following: void __attribute__((weak)) bust_spinlocks(int yes) { if (yes) { ++oops_in_progress; The proper way to resolve the problem that original commit tried to solve is to avoid printing a stack dump from panic() when the either of the following conditions is true: 1) TAINT_DIE has been set (this is done by oops_end()) This indicates and oops has already been printed. 2) oops_in_progress > 1 This guards against the rare case where panic() is invoked a second time, or in between oops_begin() and oops_end() Signed-off-by: Jason Wessel Cc: Andi Kleen Cc: [3.3+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6

2012-04-12T19:49:56Z

Pull irqdomain bug fixes from Grant Likely: "This branch fixes a bug in irq_create_mapping() where an error return from irq_alloc_desc_from() gets ignored. It also removes irq_virq_count to fix a bug on powerpc where the irqdomain code does not find irqs allocated above the CONFIG_NR_IRQS boundary. The remaining patches get rid of an completely pointless export and fix some minor bugs in the irqdomain debug output." * tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6: irq_domain: Move irq_virq_count into NOMAP revmap irqdomain: Fix debugfs formatting irq_domain: correct the debugfs file name irq: Kill pointless irqd_to_hw export irq/irq_domain: Quit ignoring error returns from irq_alloc_desc_from().

irq_domain: Move irq_virq_count into NOMAP revmap

2012-04-12T06:37:48Z

This patch replaces the old global setting of irq_virq_count that is only used by the NOMAP mapping and instead uses a revmap_data property so that the maximum NOMAP allocation can be set per NOMAP irq_domain. There is exactly one user of irq_virq_count in-tree right now: PS3. Also, irq_virq_count is only useful for the NOMAP mapping. So, instead of having a single global irq_virq_count values, this change drops it entirely and added a max_irq argument to irq_domain_add_nomap(). That makes it a property of an individual nomap irq domain instead of a global system settting. Signed-off-by: Grant Likely Tested-by: Benjamin Herrenschmidt Cc: Thomas Gleixner Cc: Milton Miller

cred: copy_process() should clear child->replacement_session_keyring

2012-04-11T15:20:11Z

keyctl_session_to_parent(task) sets ->replacement_session_keyring, it should be processed and cleared by key_replace_session_keyring(). However, this task can fork before it notices TIF_NOTIFY_RESUME and the new child gets the bogus ->replacement_session_keyring copied by dup_task_struct(). This is obviously wrong and, if nothing else, this leads to put_cred(already_freed_cred). change copy_creds() to clear this member. If copy_process() fails before this point the wrong ->replacement_session_keyring doesn't matter, exit_creds() won't be called. Cc: Signed-off-by: Oleg Nesterov Acked-by: David Howells Signed-off-by: Linus Torvalds