Peter W Morreale a56ed66304 mm: fix pdflush thread creation upper bound ... Fix a race on creating pdflush threads. Without the patch, it is possible to create more than MAX_PDFLUSH_THREADS threads, and this has been observed in practice on IO loaded SMP machines. The fix involves moving the lock around to protect the check against the thread count and correctly dealing with thread creation failure. This fix also _mostly_ repairs a race condition on how quickly the threads are created. The original intent was to create a pdflush thread (up to the max allowed) every second. Without this patch is is possible to create NCPUS pdflush threads concurrently. The 'mostly' caveat is because an assumption is made that thread creation will be successful. If we fail to create the thread, the miss is not considered fatal. (we will try again in 1 second) Signed-off-by: Peter W Morreale <pmorreale@novell.com> Reviewed-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-04-07 08:31:03 -07:00
..
allocpercpu.c	percpu: __percpu_depopulate_mask can take a const mask	2009-04-06 13:44:15 -07:00
backing-dev.c	block: change the request allocation/congestion logic to be sync/async based	2009-04-06 08:04:53 -07:00
bootmem.c	bootmem, x86: further fixes for arch-specific bootmem wrapping	2009-03-01 16:06:56 +09:00
bounce.c	bounce: don't rely on a zeroed bio_vec list	2008-12-29 08:29:52 +01:00
debug-pagealloc.c	generic debug pagealloc	2009-04-01 08:59:13 -07:00
dmapool.c	dmapool: enable debugging for CONFIG_SLUB_DEBUG_ON too	2008-04-28 08:58:20 -07:00
fadvise.c	[CVE-2009-0029] System call wrapper special cases	2009-01-14 14:15:18 +01:00
failslab.c	kmemtrace, mm: fix slab.h dependency problem in mm/failslab.c	2009-04-03 12:23:01 +02:00
filemap_xip.c	mm: do_xip_mapping_read: fix length calculation	2009-04-02 19:04:49 -07:00
filemap.c	Staging: pohmelfs: kconfig/makefile and vfs changes.	2009-04-03 14:53:36 -07:00
fremap.c	Do not account for the address space used by hugetlbfs using VM_ACCOUNT	2009-02-10 10:48:42 -08:00
highmem.c	mm: introduce debug_kmap_atomic	2009-04-01 08:59:14 -07:00
hugetlb.c	hugetlb: chg cannot become less than 0	2009-04-01 08:59:13 -07:00
internal.h	nommu: there is no mlock() for NOMMU, so don't provide the bits	2009-04-01 08:59:14 -07:00
Kconfig	nommu: make CONFIG_UNEVICTABLE_LRU available when CONFIG_MMU=n	2009-04-01 08:59:15 -07:00
Kconfig.debug	generic debug pagealloc: build fix	2009-04-02 19:04:48 -07:00
maccess.c	kgdb: fix optional arch functions and probe_kernel_*	2008-04-17 20:05:39 +02:00
madvise.c	[CVE-2009-0029] System call wrappers part 14	2009-01-14 14:15:24 +01:00
Makefile	generic debug pagealloc	2009-04-01 08:59:13 -07:00
memcontrol.c	memcg: cleanup cache_charge	2009-04-02 19:04:56 -07:00
memory_hotplug.c	mm: remove GFP_HIGHUSER_PAGECACHE	2009-01-06 15:59:01 -08:00
memory.c	mm: page_mkwrite change prototype to match fault	2009-04-01 08:59:14 -07:00
mempolicy.c	[CVE-2009-0029] System call wrappers part 28	2009-01-14 14:15:30 +01:00
mempool.c
migrate.c	FS-Cache: Recruit a page flags for cache management	2009-04-03 16:42:36 +01:00
mincore.c	[CVE-2009-0029] System call wrappers part 14	2009-01-14 14:15:24 +01:00
mlock.c	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-02-17 14:27:39 -08:00
mm_init.c	mm: mminit_loglevel cannot be __meminitdata anymore	2008-08-20 15:40:30 -07:00
mmap.c	nommu: fix a number of issues with the per-MM VMA patch	2009-04-02 19:04:48 -07:00
mmu_notifier.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
mmzone.c	mm: mark the correct zone as full when scanning zonelists	2008-09-13 14:41:52 -07:00
mprotect.c	Do not account for the address space used by hugetlbfs using VM_ACCOUNT	2009-02-10 10:48:42 -08:00
mremap.c	[CVE-2009-0029] System call wrappers part 13	2009-01-14 14:15:23 +01:00
msync.c	[CVE-2009-0029] System call wrappers part 13	2009-01-14 14:15:23 +01:00
nommu.c	nommu: fix a number of issues with the per-MM VMA patch	2009-04-02 19:04:48 -07:00
oom_kill.c	memcg: show memcg information during OOM	2009-04-02 19:04:55 -07:00
page_alloc.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask	2009-04-05 10:33:07 -07:00
page_cgroup.c	memcg: remove redundant message at swapon	2009-04-02 19:04:56 -07:00
page_io.c	block: fix bad definition of BIO_RW_SYNC	2009-02-18 10:32:00 +01:00
page_isolation.c	memory hotplug: fix page_zone() calculation in test_pages_isolated()	2008-11-06 15:41:19 -08:00
page-writeback.c	mm: fix proc_dointvec_userhz_jiffies "breakage"	2009-04-01 08:59:13 -07:00
pagewalk.c	pagemap: pass mm into pagewalkers	2008-06-12 18:05:41 -07:00
pdflush.c	mm: fix pdflush thread creation upper bound	2009-04-07 08:31:03 -07:00
percpu.c	percpu: generalize embedding first chunk setup helper	2009-03-10 16:27:48 +09:00
prio_tree.c
quicklist.c	cpumask: replace node_to_cpumask with cpumask_of_node.	2009-03-13 14:49:46 +10:30
readahead.c	FS-Cache: Recruit a page flags for cache management	2009-04-03 16:42:36 +01:00
rmap.c	mm: fix mlocked page counter mismatch	2009-02-11 14:25:35 -08:00
shmem_acl.c	[PATCH] sanitize ->permission() prototype	2008-07-26 20:53:14 -04:00
shmem.c	shmem: writepage directly to swap	2009-04-01 08:59:15 -07:00
slab.c	Merge branch 'kmemtrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-04-06 13:30:00 -07:00
slob.c	kmemtrace: trace kfree() calls with NULL or zero-length objects	2009-04-03 12:23:10 +02:00
slub.c	kmemtrace: trace kfree() calls with NULL or zero-length objects	2009-04-03 12:23:10 +02:00
sparse-vmemmap.c	vmemmap: warn about page_structs with remote distance	2008-11-06 15:41:19 -08:00
sparse.c	mm: mminit_validate_memmodel_limits(): remove redundant test	2009-04-01 08:59:11 -07:00
swap_state.c	memcg: mem+swap controller core	2009-01-08 08:31:05 -08:00
swap.c	FS-Cache: Recruit a page flags for cache management	2009-04-03 16:42:36 +01:00
swapfile.c	PM/hibernate: fix "swap breaks after hibernation failures"	2009-02-21 14:17:17 -08:00
thrash.c
truncate.c	FS-Cache: Recruit a page flags for cache management	2009-04-03 16:42:36 +01:00
util.c	kmemtrace: use tracepoints	2009-04-03 12:23:06 +02:00
vmalloc.c	vmap: remove needless lock and list in vmap	2009-04-01 08:59:11 -07:00
vmscan.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask	2009-04-05 10:33:07 -07:00
vmstat.c	mm: align vmstat_work's timer	2009-04-02 19:04:48 -07:00