Sebastian Andrzej Siewior
b6873807a7
irq: Track the owner of irq descriptor ...
Interrupt descriptors can be allocated from modules. The interrupts
are used by other modules, but we have no refcount on the module which
provides the interrupts and there is no way to establish one on the
device level as the interrupt using module is agnostic to the fact
that the interrupt is provided by a module rather than by some builtin
interrupt controller.
To prevent removal of the interrupt providing module, we can track the
owner of the interrupt descriptor, which also provides the relevant
irq chip functions in the irq descriptor.
request/setup_irq() can now acquire a refcount on the owner module to
prevent unloading. free_irq() drops the refcount.
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Link: http://lkml.kernel.org/r/20110711101731.GA13804@Chamillionaire.breakpoint.cc
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-07-28 11:23:21 +02:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
2011-06-04 12:13:06 +02:00
gcov: disable CONFIG_CONSTRUCTORS when not needed by CONFIG_GCOV_KERNEL
2011-06-15 20:04:01 -07:00
irq: Track the owner of irq descriptor
2011-07-28 11:23:21 +02:00
PM / Hibernate: Fix free_unnecessary_pages()
2011-07-06 20:15:23 +02:00
alarmtimers: Return -ENOTSUPP if no RTC device is present
2011-06-21 16:32:28 -07:00
tracing: Fix regression in printk_formats file
2011-06-09 08:42:15 -04:00
pass a struct path to vfs_statfs
2010-08-09 16:48:42 -04:00
netlink: kill loginuid/sessionid/sid members from struct netlink_skb_parms
2011-03-03 10:55:40 -08:00
audit: make functions static
2010-10-30 01:42:19 -04:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
kill path_lookup()
2011-03-14 09:15:23 -04:00
netlink: kill loginuid/sessionid/sid members from struct netlink_skb_parms
2011-03-03 10:55:40 -08:00
audit: acquire creds selectively to reduce atomic op overhead
2011-04-27 15:11:03 +02:00
memcg: remove direct page_cgroup-to-page pointer
2011-03-23 19:46:28 -07:00
Merge branch 'master' into next
2011-05-19 18:51:57 +10:00
cgroup: remove the ns_cgroup
2011-05-26 17:12:34 -07:00
cgroups: add per-thread subsystem callbacks
2011-05-26 17:12:34 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
2011-05-25 15:35:32 -07:00
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
cpuset: Fix cpuset_cpus_allowed_fallback(), don't update tsk->rt.nr_cpus_allowed
2011-05-28 17:02:57 +02:00
crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn
2011-03-23 19:47:19 -07:00
Merge branch 'docs-move' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs
2011-05-27 10:25:02 -07:00
sys_personality: remove the bogus checks in sys_personality()->__set_personality() path
2010-08-09 20:45:05 -07:00
memcg: clear mm->owner when last possible owner leaves
2011-06-15 20:04:01 -07:00
extable, core_kernel_data(): Make sure all archs define _sdata
2011-05-20 08:56:56 +02:00
mm: Fix boot crash in mm_alloc()
2011-05-29 11:32:28 -07:00
Freezer: Use SMP barriers
2011-05-17 23:19:17 +02:00
futex: Set FLAGS_HAS_TIMEOUT during futex_wait restart setup
2011-04-15 16:34:32 +02:00
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
hrtimers: Fix typo causing erratic timers
2011-05-25 15:31:58 -07:00
watchdog, hung_task_timeout: Add Kconfig configurable default
2011-04-28 09:13:17 +02:00
irq_work: Use per cpu atomics instead of regular atomics
2010-12-18 15:54:48 +01:00
jump_label: Fix jump_label update for modules
2011-06-29 09:59:17 -04:00
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-03-25 17:52:22 -07:00
arch:Kconfig.locks Remove unused config option.
2011-04-10 17:01:05 +02:00
PM: Remove sysdev suspend, resume and shutdown operations
2011-05-11 21:37:15 +02:00
kfifo: fix scatterlist usage
2010-10-01 10:50:58 -07:00
KEYS/DNS: Fix ____call_usermodehelper() to not lose the session keyring
2011-06-17 09:40:48 -07:00
Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2011-01-07 17:02:58 -08:00
kernel/ksysfs.c: expose file_caps_enabled in sysfs
2011-04-19 16:45:51 -07:00
cpuset: Fix cpuset_cpus_allowed_fallback(), don't update tsk->rt.nr_cpus_allowed
2011-05-28 17:02:57 +02:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
lockdep: Fix lock_is_held() on recursion
2011-06-07 12:25:50 +02:00
lockdep: Remove unused 'factor' variable from lockdep_stats_show()
2011-03-23 13:54:47 +01:00
cgroup: remove the ns_cgroup
2011-05-26 17:12:34 -07:00
Merge branch 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
2011-05-23 12:49:28 -07:00
mutex: Use p->on_cpu for the adaptive spin
2011-04-14 08:52:33 +02:00
mutex: Use p->on_cpu for the adaptive spin
2011-04-14 08:52:33 +02:00
lockdep, mutex: provide mutex_lock_nest_lock
2011-05-25 08:39:17 -07:00
mutex: Use p->on_cpu for the adaptive spin
2011-04-14 08:52:33 +02:00
cgroup: remove the ns_cgroup
2011-05-26 17:12:34 -07:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
move x86 specific oops=panic to generic code
2011-03-22 17:44:11 -07:00
params.c: Use new strtobool function to process boolean inputs
2011-05-19 16:55:28 +09:30
next_pidmap: fix overflow condition
2011-04-18 10:35:30 -07:00
pidns: call pid_ns_prepare_proc() from create_pid_namespace()
2011-03-23 19:46:58 -07:00
Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6
2011-05-29 11:18:09 -07:00
hrtimers: Avoid touching inactive timer bases
2011-05-23 13:59:54 +02:00
posix-timers: RCU conversion
2011-05-24 12:10:51 +02:00
printk: allocate kernel log buffer earlier
2011-05-25 08:39:48 -07:00
kernel/profile.c: remove some duplicate code from profile_hits()
2011-05-26 17:12:37 -07:00
ptrace: ptrace_resume() shouldn't wake up !TASK_TRACED thread
2011-05-25 19:20:21 +02:00
kernel/range.c: fix clean_sort_range() for the case of full array
2010-11-12 07:55:31 -08:00
rcu: Use WARN_ON_ONCE for DEBUG_OBJECTS_RCU_HEAD warnings
2011-05-05 23:16:57 -07:00
sanitize <linux/prefetch.h> usage
2011-05-20 12:50:29 -07:00
rcu: Converge TINY_RCU expedited and normal boosting
2011-05-05 23:16:58 -07:00
rcu: mark rcutorture boosting callback as being on-stack
2011-05-05 23:16:57 -07:00
rcu: Prevent RCU callbacks from executing before scheduler initialized
2011-07-13 08:17:56 -07:00
rcu: Move RCU_BOOST #ifdefs to header file
2011-06-16 16:12:05 -07:00
softirq,rcu: Inform RCU of irq_exit() activity
2011-07-20 10:50:12 -07:00
rcu: use softirq instead of kthreads except when RCU_BOOST=y
2011-06-15 23:07:21 -07:00
Clean up relay_alloc_page_array() slightly by using vzalloc rather than vmalloc and memset
2010-11-05 08:21:34 -07:00
memcg: res_counter_read_u64(): fix potential races on 32-bit machines
2011-03-23 19:46:22 -07:00
resource: ability to resize an allocated resource
2011-07-06 10:54:08 -07:00
rtmutex: Simplify PI algorithm and make highest prio task get lock
2011-01-27 21:13:51 -05:00
rtmutex: tester: Remove the remaining BKL leftovers
2011-02-22 22:07:22 +01:00
rtmutex: Simplify PI algorithm and make highest prio task get lock
2011-01-27 21:13:51 -05:00
rtmutex: Simplify PI algorithm and make highest prio task get lock
2011-01-27 21:13:51 -05:00
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-07-20 15:56:25 -07:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
sched, autogroup: Stop going ahead if autogroup is disabled
2011-02-23 11:33:59 +01:00
sched: Add some clock info to sched_debug
2010-11-23 10:29:08 +01:00
sched: Get rid of lock_depth
2011-04-24 13:18:38 +02:00
sched: Break out cpu_power from the sched_group structure
2011-07-20 18:32:40 +02:00
sched: Allow for overlapping sched_domain spans
2011-07-20 18:32:41 +02:00
sched: Drop the rq argument to sched_class::select_task_rq()
2011-04-14 08:52:36 +02:00
sched: Check if lowest_mask is initialized in find_lowest_rq()
2011-06-15 11:44:48 +02:00
sched: More sched_domain iterations fixes
2011-05-28 17:02:54 +02:00
sched: Drop the rq argument to sched_class::select_task_rq()
2011-04-14 08:52:36 +02:00
signal: align __lock_task_sighand() irq disabling and RCU
2011-07-20 11:04:54 -07:00
generic-ipi: Fix kexec boot crash by initializing call_single_queue before enabling interrupts
2011-06-17 10:17:12 +02:00
softirq,rcu: Inform RCU of irq_exit() activity
2011-07-20 10:50:12 -07:00
rcu: demote SRCU_SYNCHRONIZE_DELAY from kernel-parameter status
2011-01-14 04:56:49 -08:00
kthread: use kthread_create_on_node()
2011-03-22 17:44:01 -07:00
Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
2011-05-19 18:24:11 -07:00
ipc: Add missing sys_ni entries for ipc/compat.c functions
2011-05-20 13:53:02 -07:00
perf: Comment /proc/sys/kernel/perf_event_paranoid to be part of user ABI
2011-06-04 12:22:04 +02:00
open-style analog of vfs_path_lookup()
2011-03-14 09:15:28 -04:00
sysctl_check: drop dead code
2011-03-23 19:46:51 -07:00
taskstats: don't allow duplicate entries in listener mode
2011-06-27 18:00:13 -07:00
kprobes: Fix selftest to clear flags field for reusing probes
2010-10-14 08:55:27 +02:00
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-03-15 18:53:35 -07:00
timers: Consider slack value in mod_timer()
2011-06-03 15:02:32 +02:00
jump label: Introduce static_branch() interface
2011-04-04 12:48:08 -04:00
taskstats: use real microsecond granularity for CPU times
2010-10-27 18:03:17 -07:00
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
userns: add a user_namespace as creator/owner of uts_namespace
2011-03-23 19:46:59 -07:00
user_ns: improve the user_ns on-the-slab packaging
2011-01-13 08:03:18 -08:00
ns proc: Add support for the uts namespace
2011-05-10 14:35:35 -07:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
kernel/watchdog.c: Use proper ANSI C prototypes
2011-05-23 21:07:40 -07:00
Merge branch 'for-2.6.40' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2011-05-24 11:53:42 -07:00
b6873807a7