Wu Fengguang c5c6343c4d writeback: permit through good bdi even when global dirty exceeded ... On a system with 1 local mount and 1 NFS mount, if the NFS server becomes not responding when dd to the NFS mount, the NFS dirty pages may exceed the global dirty limit and _every_ task involving writing will be blocked. The whole system appears unresponsive. The workaround is to permit through the bdi's that only has a small number of dirty pages. The number chosen (bdi_stat_error pages) is not enough to enable the local disk to run in optimal throughput, however is enough to make the system responsive on a broken NFS mount. The user can then kill the dirtiers on the NFS mount and increase the global dirty limit to bring up the local disk's throughput. It risks allowing dirty pages to grow much larger than the global dirty limit when there are 1000+ mounts, however that's very unlikely to happen, especially in low memory profiles. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>		2011-12-08 10:49:27 +08:00
..
backing-dev.c	backing-dev: ensure wakeup_timer is deleted	2011-11-11 13:29:04 +01:00
bootmem.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
bounce.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
cleancache.c	mm: cleancache core ops functions and config	2011-05-26 10:01:36 -06:00
compaction.c	mm: compaction: make compact_zone_order() static	2011-10-31 17:30:49 -07:00
debug-pagealloc.c	debug-pagealloc: add support for highmem pages	2011-10-31 17:30:48 -07:00
dmapool.c	mm: fix implicit stat.h usage in dmapool.c	2011-10-31 09:20:12 -04:00
fadvise.c	readahead: introduce FMODE_RANDOM for POSIX_FADV_RANDOM	2010-03-06 11:26:25 -08:00
failslab.c	fault-injection: add ability to export fault_attr in arbitrary directory	2011-08-03 14:25:20 -10:00
filemap_xip.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
filemap.c	fs: Make write(2) interruptible by a fatal signal	2011-12-02 09:17:05 +08:00
fremap.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
highmem.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
huge_memory.c	mm: thp: tail page refcounting fix	2011-11-02 16:06:57 -07:00
hugetlb.c	hugetlb: release pages in the error path of hugetlb_cow()	2011-11-15 22:41:52 -02:00
hwpoison-inject.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
init-mm.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
internal.h	mm: thp: tail page refcounting fix	2011-11-02 16:06:57 -07:00
Kconfig	memblock: add NO_BOOTMEM config symbol	2011-10-31 17:30:47 -07:00
Kconfig.debug	mm: debug-pagealloc: fix kconfig dependency warning	2011-03-22 17:44:02 -07:00
kmemcheck.c	kmemcheck: Fix build errors due to missing slab.h	2010-03-30 22:02:32 +09:00
kmemleak-test.c	kmemleak: remove memset by using kzalloc	2011-01-27 18:31:51 +00:00
kmemleak.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
ksm.c	oom: fix race while temporarily setting current's oom_score_adj	2011-10-31 17:30:45 -07:00
maccess.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
madvise.c	fs: kill i_alloc_sem	2011-07-20 20:47:46 -04:00
Makefile	Cross Memory Attach	2011-10-31 17:30:44 -07:00
memblock.c	mm/memblock.c: quiet sparse noise	2011-10-31 17:30:50 -07:00
memcontrol.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
memory_hotplug.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
memory-failure.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
memory.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
mempolicy.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
mempool.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
migrate.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
mincore.c	mm: clarify the radix_tree exceptional cases	2011-08-03 14:25:24 -10:00
mlock.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
mm_init.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
mmap.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
mmu_context.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
mmu_notifier.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
mmzone.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
mprotect.c	thp: mprotect: transparent huge page support	2011-01-13 17:32:44 -08:00
mremap.c	thp: mremap support and TLB optimization	2011-10-31 17:30:48 -07:00
msync.c	sanitize vfs_fsync calling conventions	2010-05-21 18:31:21 -04:00
nobootmem.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
nommu.c	xen: map foreign pages for shared rings by updating the PTEs directly	2011-11-16 12:13:08 -05:00
oom_kill.c	oom: do not kill tasks with oom_score_adj OOM_SCORE_ADJ_MIN	2011-11-15 22:41:51 -02:00
page_alloc.c	mm: neaten warn_alloc_failed	2011-10-31 17:30:48 -07:00
page_cgroup.c	mm/page_cgroup.c: quiet sparse noise	2011-11-02 16:07:00 -07:00
page_io.c	block: kill off REQ_UNPLUG	2011-03-10 08:52:27 +01:00
page_isolation.c	mm: page_isolation: codeclean fix comment and rm unneeded val init	2010-10-26 16:52:11 -07:00
page-writeback.c	writeback: permit through good bdi even when global dirty exceeded	2011-12-08 10:49:27 +08:00
pagewalk.c	pagewalk: fix code comment for THP	2011-07-25 20:57:09 -07:00
percpu-km.c	percpu: clear memory allocated with the km allocator	2010-10-02 10:28:42 +03:00
percpu-vm.c	percpu: fix chunk range calculation	2011-11-22 08:09:46 -08:00
percpu.c	percpu: explain why per_cpu_ptr_to_phys() is more complicated than necessary	2011-11-23 08:20:53 -08:00
pgtable-generic.c	mm/pgtable-generic.c: fix CONFIG_SWAP=n build	2011-01-26 10:49:58 +10:00
prio_tree.c	sanitize <linux/prefetch.h> usage	2011-05-20 12:50:29 -07:00
process_vm_access.c	Cross Memory Attach	2011-10-31 17:30:44 -07:00
quicklist.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
readahead.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
rmap.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
shmem.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
slab.c	mm: restrict access to slab files under procfs and sysfs	2011-09-27 22:59:27 +03:00
slob.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
slub.c	lib/string.c: introduce memchr_inv()	2011-10-31 17:30:47 -07:00
sparse-vmemmap.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
sparse.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
swap_state.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
swap.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
swapfile.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
thrash.c	mm/thrash.c: quiet sparse noise	2011-10-31 17:30:50 -07:00
truncate.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
util.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
vmalloc.c	xen: map foreign pages for shared rings by updating the PTEs directly	2011-11-16 12:13:08 -05:00
vmscan.c	Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux	2011-11-06 19:02:23 -08:00
vmstat.c	mm/vmstat.c: cache align vm_stat	2011-10-31 17:30:51 -07:00