Tejun Heo
edcb463997
percpu, module: implement reserved allocation and use it for module percpu variables ...
Impact: add reserved allocation functionality and use it for module
percpu variables
This patch implements reserved allocation from the first chunk. When
setting up the first chunk, arch can ask to set aside certain number
of bytes right after the core static area which is available only
through a separate reserved allocator. This will be used primarily
for module static percpu variables on architectures with limited
relocation range to ensure that the module perpcu symbols are inside
the relocatable range.
If reserved area is requested, the first chunk becomes reserved and
isn't available for regular allocation. If the first chunk also
includes piggy-back dynamic allocation area, a separate chunk mapping
the same region is created to serve dynamic allocation. The first one
is called static first chunk and the second dynamic first chunk.
Although they share the page map, their different area map
initializations guarantee they serve disjoint areas according to their
purposes.
If arch doesn't setup reserved area, reserved allocation is handled
like any other allocation.
Signed-off-by: Tejun Heo <tj@kernel.org>
2009-03-06 14:33:59 +09:00
Merge commit 'v2.6.29-rc4' into core/percpu
2009-02-09 14:58:11 +01:00
PM: Split up sysdev_[suspend|resume] from device_power_[down|up]
2009-02-22 10:33:44 -08:00
hrtimers: allow the hot-unplugging of all cpus
2009-01-30 22:35:29 +01:00
tracing: limit the number of loops the ring buffer self test can make
2009-02-18 22:50:01 -05:00
[CVE-2009-0029] System call wrappers part 04
2009-01-14 14:15:19 +01:00
async: use list_move_tail
2009-02-08 10:00:26 -08:00
[PATCH] fix broken timestamps in AVC generated by kernel threads
2008-12-09 02:27:41 -05:00
fixing audit rule ordering mess, part 1
2009-01-04 15:14:41 -05:00
audit: validate comparison operations, store them in sane form
2009-01-04 15:14:42 -05:00
audit: validate comparison operations, store them in sane form
2009-01-04 15:14:42 -05:00
make sure that filterkey of task,always rules is reported
2009-01-04 15:14:42 -05:00
[CVE-2009-0029] System call wrappers part 04
2009-01-14 14:15:19 +01:00
cgroups: fix possible use after free
2009-02-18 15:37:54 -08:00
freezer_cg: disable writing freezer.state of root cgroup
2008-11-12 17:17:16 -08:00
Allow times and time system calls to return small negative values
2009-01-06 15:59:13 -08:00
stop_machine/cpu hotplug: fix disable_nonboot_cpus
2009-01-07 11:36:14 -08:00
cpuset: fix possible deadlock in async_rebuild_sched_domains
2009-01-19 02:44:00 +01:00
CRED: Inaugurate COW credentials
2008-11-14 10:39:23 +11:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
2009-01-09 13:59:25 -08:00
schedstat: consolidate per-task cpu runtime stats
2008-12-18 13:54:01 +01:00
dma-coherent: Restore dma_alloc_from_coherent() large alloc fall back policy.
2009-01-21 18:51:53 +09:00
[CVE-2009-0029] System call wrappers part 04
2009-01-14 14:15:19 +01:00
Merge branch 'linus' into x86/apic
2009-02-13 09:44:22 +01:00
Merge branch 'core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-12-30 16:10:19 -08:00
Merge branch 'linus' into x86/apic
2009-02-13 09:44:22 +01:00
freezer_cg: use thaw_process() in unfreeze_cgroup()
2008-10-30 11:38:45 -07:00
futex: fix reference leak
2009-02-11 18:24:08 +01:00
CRED: Use RCU to access another task's creds and to release a task's own creds
2008-11-14 10:39:19 +11:00
hrtimer: prevent negative expiry value after clock_was_set()
2009-01-30 22:35:34 +01:00
timers: split process wide cpu clocks/timers
2009-02-05 13:04:33 +01:00
Revert "kbuild: strip generated symbols from *.ko"
2009-01-14 21:38:20 +01:00
rcu: provide RCU options on non-preempt architectures too
2008-12-25 09:31:28 +01:00
Merge branch 'linus' into x86/apic
2009-02-22 20:05:19 +01:00
kmod: fix varargs kernel-doc
2009-01-06 15:59:27 -08:00
kprobes: check CONFIG_FREEZER instead of CONFIG_PM
2009-01-16 14:32:17 -05:00
kernel/ksysfs.c:fix dependence on CONFIG_NET
2009-01-06 10:44:31 -08:00
tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()
2008-11-16 09:01:36 +01:00
KSYM_SYMBOL_LEN fixes
2008-12-10 08:01:54 -08:00
Merge branch 'core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-12-30 16:10:19 -08:00
PM: fix build for CONFIG_PM unset
2009-02-21 14:17:17 -08:00
markers/tracpoints: fix non-modular build
2008-11-16 09:52:03 +01:00
percpu, module: implement reserved allocation and use it for module percpu variables
2009-03-06 14:33:59 +09:00
mutex: __used is needed for function referenced only from inline asm
2008-11-24 10:00:28 +01:00
Merge commit 'v2.6.28-rc6' into core/debug
2008-11-26 08:22:50 +01:00
ns_cgroup: remove unused spinlock
2009-01-08 08:31:02 -08:00
User namespaces: set of cleanups (v2)
2008-11-24 18:57:41 -05:00
stackprotector: update make rules
2009-02-10 00:41:54 +01:00
Fix compile warning in kernel/params.c
2008-10-23 12:09:00 -07:00
pid: generalize task_active_pid_ns
2009-01-08 08:31:12 -08:00
timers: more consistently use clock vs timer
2009-02-13 13:04:05 +01:00
[CVE-2009-0029] System call wrappers part 05
2009-01-14 14:15:20 +01:00
PM: Fix suspend_console and resume_console to use only one semaphore
2009-02-21 14:17:18 -08:00
profiling: fix broken profiling regression
2009-02-10 00:50:37 +01:00
[CVE-2009-0029] System call wrappers part 27
2009-01-14 14:15:29 +01:00
rcu: add __cpuinit to rcu_init_percpu_data()
2009-01-14 11:26:40 +01:00
rcu: eliminate synchronize_rcu_xxx macro
2009-01-05 10:18:08 +01:00
rcu: eliminate synchronize_rcu_xxx macro
2009-01-05 10:18:08 +01:00
"Tree RCU": scalable classic RCU implementation
2008-12-18 21:56:04 +01:00
rcu: fix bug in rcutorture system-shutdown code
2009-01-07 23:36:25 +01:00
rcu: add __cpuinit to rcu_init_percpu_data()
2009-01-14 11:26:40 +01:00
"Tree RCU": scalable classic RCU implementation
2008-12-18 21:56:04 +01:00
relay: fix lock imbalance in relay_late_setup_files
2009-01-18 20:29:35 +01:00
memcg: memory cgroup resource counters for hierarchy
2009-01-08 08:31:05 -08:00
resources: fix parameter name and kernel-doc
2009-01-15 16:39:38 -08:00
Merge branch 'tj-percpu' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into core/percpu
2009-02-24 21:52:45 +01:00
sched_clock: prevent scd->clock from moving backwards, take #2
2008-12-31 09:53:21 +01:00
sched: fix section mismatch
2009-01-06 11:07:15 +01:00
sched: convert struct cpupri_vec cpumask_var_t.
2008-11-24 17:52:22 +01:00
sched: partly revert "sched debug: remove NULL checking in print_cfs_rt_rq()"
2009-01-11 02:40:32 +01:00
sched: revert recent sync wakeup changes
2009-02-11 14:43:35 +01:00
sched: backward looking buddy
2008-11-05 10:30:14 +01:00
sched_rt: don't use first_cpu on cpumask created with cpumask_and
2009-02-01 10:49:52 +01:00
timers: split process wide cpu clocks/timers
2009-02-05 13:04:33 +01:00
x86-64: seccomp: fix 32/64 syscall hole
2009-03-02 15:41:30 -08:00
signal: re-add dead task accumulation stats.
2009-02-05 13:04:33 +01:00
generic-ipi: use per cpu data for single cpu ipi calls
2009-01-30 18:31:08 +01:00
x86: arch_probe_nr_irqs
2009-01-12 17:39:24 -08:00
softlock: fix false panic which can occur if softlockup_thresh is reduced
2009-01-14 11:48:07 +01:00
stacktrace: provide save_stack_trace_tsk() weak alias
2008-12-25 11:44:43 +01:00
alloc_percpu: change percpu_ptr to per_cpu_ptr
2009-02-20 16:29:08 +09:00
revert "rlimit: permit setting RLIMIT_NOFILE to RLIM_INFINITY"
2009-02-05 12:56:47 -08:00
[CVE-2009-0029] Make sys_syslog a conditional system call
2009-01-14 14:15:16 +01:00
mm: fix dirty_bytes/dirty_background_bytes sysctls on 64bit arches
2009-02-11 14:25:35 -08:00
[XFS] remove restricted chown parameter from xfs linux
2008-10-30 18:30:09 +11:00
cpumask: convert rest of files in kernel/
2009-01-01 10:12:28 +10:30
kprobes: add tests for register_kprobes
2009-01-06 15:59:20 -08:00
[CVE-2009-0029] System call wrappers part 01
2009-01-14 14:15:18 +01:00
[CVE-2009-0029] System call wrappers part 27
2009-01-14 14:15:29 +01:00
markers/tracpoints: fix non-modular build
2008-11-16 09:52:03 +01:00
mm: introduce get_mm_hiwater_xxx(), fix taskstats->hiwater_xxx accounting
2009-01-06 15:59:09 -08:00
[CVE-2009-0029] System call wrappers part 19
2009-01-14 14:15:26 +01:00
smp_call_function_single(): be slightly less stupid, fix #2
2009-01-12 16:04:37 +01:00
User namespaces: Only put the userns when we unhash the uid
2009-02-13 08:07:40 -08:00
Fix recursive lock in free_uid()/free_user_ns()
2009-02-27 16:26:21 -08:00
wait: prevent exclusive waiter starvation
2009-02-05 12:56:48 -08:00
work_on_cpu: Use our own workqueue.
2009-01-19 22:36:07 +01:00
edcb463997