Thomas Gleixner 337fff8b5e debugobjects: delay free of internal objects ... Impact: avoid recursive kfree calls, less slab activity on heavy load debugobjects checks on kfree whether tracked objects are freed. When a tracked object is freed debugobjects frees the internal reference object as well. The debug object slab cache is marked to not recurse into debugobjects when a slab objects is freed, but the recursive call can be problematic versus locking in the memory allocator. Defer the freeing of debug slab objects via schedule_work. The reasons not to use RCU are: 1) rcu makes the data structure larger 2) there is no real need for rcu as nothing references the obj after we freed it 3) under heavy load it is easier to reuse the to be freed objects instead of allocating new objects from the slab. This lowered the slab activity significantly in a heavy load networking test where lots of timers are created/destroyed. The workqueue based delayed free allows us just to put the to be freed objects back into the object pool and reuse them right away. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> LKML-Reference: <200903162049.58058.nickpiggin@yahoo.com.au>		2009-03-17 12:28:30 +01:00
..
lzo	lzo: use get/put_unaligned_* helpers	2008-07-25 10:53:26 -07:00
reed_solomon
zlib_deflate
zlib_inflate
.gitignore
argv_split.c
audit.c
bcd.c	rtc: BCD codeshrink	2008-07-24 10:47:33 -07:00
bitmap.c	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb	2008-10-23 08:20:34 -07:00
bitrev.c
bug.c	allow bug table entries to use relative pointers (and use it on x86-64)	2008-12-16 18:40:32 +01:00
bust_spinlocks.c	oops handling: ensure that any oops is flushed to the mtdoops console	2009-01-06 15:59:11 -08:00
check_signature.c
cmdline.c	generic, memparse(): constify argument	2008-07-28 15:05:23 +02:00
cpumask.c	cpumask: zero extra bits in alloc_cpumask_var_node	2009-01-01 10:12:30 +10:30
crc7.c
crc16.c
crc32.c
crc32defs.h
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
ctype.c
debug_locks.c	debug_locks: set oops_in_progress if we will log messages.	2008-08-01 10:46:43 +02:00
debugobjects.c	debugobjects: delay free of internal objects	2009-03-17 12:28:30 +01:00
dec_and_lock.c
devres.c
div64.c
dump_stack.c
dynamic_printk.c	dynamic_printk: reduce one level of indentation	2009-01-06 10:44:32 -08:00
extable.c
fault-inject.c	Remove remaining unwinder code	2009-01-06 15:59:11 -08:00
find_last_bit.c	bitmap: find_last_bit()	2009-01-01 10:12:19 +10:30
find_next_bit.c
gen_crc32table.c
genalloc.c
halfmd4.c
hexdump.c
hweight.c
idr.c	lib/idr.c: use kmem_cache_zalloc() for the idr_layer cache	2009-01-15 16:39:40 -08:00
inflate.c	inflate: refactor inflate malloc code	2008-07-25 10:53:28 -07:00
int_sqrt.c
iomap_copy.c
iomap.c	Use WARN() in lib/	2008-07-26 12:00:07 -07:00
iommu-helper.c	introduce generic iommu_num_pages function	2008-10-16 11:21:33 -07:00
ioremap.c
irq_regs.c
is_single_threaded.c	CRED: Rename is_single_threaded() to is_wq_single_threaded()	2008-11-14 10:39:21 +11:00
kasprintf.c
Kconfig	Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-01-02 11:44:09 -08:00
Kconfig.debug	docsrc: use config instead of menuconfig	2009-02-20 17:57:49 -08:00
Kconfig.kgdb	kgdb: remove the requirement for CONFIG_FRAME_POINTER	2008-08-01 08:39:34 -05:00
kernel_lock.c
klist.c	driver core: Remove completion from struct klist_node	2009-01-06 10:44:30 -08:00
kobject_uevent.c	kobject: return the result of uevent sending by netlink	2009-01-06 10:44:31 -08:00
kobject.c	kobject: Cleanup kobject_rename and !CONFIG_SYSFS	2008-10-16 09:24:52 -07:00
kref.c
libcrc32c.c	libcrc32c: Fix "crc32c undefined" compilation error	2008-12-25 11:01:42 +11:00
list_debug.c	list debugging: use WARN() instead of BUG()	2008-07-25 10:53:29 -07:00
lmb.c	lmb: Fix reserved region handling in lmb_enforce_memory_limit().	2008-08-15 19:57:57 -07:00
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
Makefile	bitmap: find_last_bit()	2009-01-01 10:12:19 +10:30
parser.c	vfs: Use const for kernel parser table	2008-10-13 10:10:37 -07:00
percpu_counter.c	Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-01-06 17:10:04 -08:00
plist.c	Use WARN() in lib/	2008-07-26 12:00:07 -07:00
prio_heap.c	lib: fix sparse shadowed variable warning	2009-01-06 15:59:11 -08:00
prio_tree.c
proportions.c	Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-01-06 17:10:04 -08:00
radix-tree.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-01-07 11:31:52 -08:00
random32.c	random32: seeding improvement	2008-07-30 16:29:19 -07:00
ratelimit.c	__ratelimit() cpu flags can't be static	2008-07-28 16:30:20 -07:00
rbtree.c	rbtree: add const qualifier to some functions	2009-01-10 06:04:33 -08:00
reciprocal_div.c
rwsem-spinlock.c
rwsem.c
scatterlist.c	lib/scatterlist.c: fix kunmap() argument in sg_miter_stop()	2008-11-19 18:49:58 -08:00
sha1.c
show_mem.c	lib: generic show_mem()	2008-07-26 12:00:10 -07:00
smp_processor_id.c	cpumask: convert lib/smp_processor_id to new cpumask ops	2009-01-30 15:47:34 +01:00
sort.c	generic swap(): lib/sort.c: rename swap to swap_func	2009-01-08 08:31:14 -08:00
spinlock_debug.c
string_helpers.c	[SCSI] lib: string_get_size(): don't hang on zero; no decimals on exact	2008-10-23 11:42:20 -05:00
string.c
swiotlb.c	Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-01-06 17:10:04 -08:00
syscall.c	task_current_syscall	2008-07-26 12:00:10 -07:00
textsearch.c	remove CONFIG_KMOD from lib	2008-07-22 19:24:31 +10:00
ts_bm.c
ts_fsm.c
ts_kmp.c
vsprintf.c	strict_strto* is not strict enough	2009-01-06 15:59:12 -08:00