Artem Bityutskiy f0cd2dbb6c vfs: kill write_super and sync_supers ... Finally we can kill the 'sync_supers' kernel thread along with the '->write_super()' superblock operation because all the users are gone. Now every file-system is supposed to self-manage own superblock and its dirty state. The nice thing about killing this thread is that it improves power management. Indeed, 'sync_supers' is a source of monotonic system wake-ups - it woke up every 5 seconds no matter what - even if there were no dirty superblocks and even if there were no file-systems using this service (e.g., btrfs and journalled ext4 do not need it). So it was wasting power most of the time. And because the thread was in the core of the kernel, all systems had to have it. So I am quite happy to make it go away. Interestingly, this thread is a left-over from the pdflush kernel thread which was a self-forking kernel thread responsible for all the write-back in old Linux kernels. It was turned into per-block device BDI threads, and 'sync_supers' was a left-over. Thus, R.I.P, pdflush as well. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2012-08-04 01:24:44 +04:00
..
Kconfig	mm: factor out memory isolate functions	2012-07-31 18:42:45 -07:00
Kconfig.debug	…
Makefile	mm: factor out memory isolate functions	2012-07-31 18:42:45 -07:00
backing-dev.c	vfs: kill write_super and sync_supers	2012-08-04 01:24:44 +04:00
bootmem.c	bootmem: make ___alloc_bootmem_node_nopanic() really nopanic	2012-07-17 16:21:29 -07:00
bounce.c	bounce: allow use of bounce pool via config option	2012-07-18 16:40:35 -04:00
cleancache.c	…
compaction.c	mm: have order > 0 compaction start off where it left	2012-07-31 18:42:43 -07:00
debug-pagealloc.c	…
dmapool.c	…
fadvise.c	mm, fadvise: don't return -EINVAL when filesystem cannot implement fadvise()	2012-07-31 18:42:42 -07:00
failslab.c	…
filemap.c	fs: Protect write paths by sb_start_write - sb_end_write	2012-07-31 09:45:47 +04:00
filemap_xip.c	fs: Protect write paths by sb_start_write - sb_end_write	2012-07-31 09:45:47 +04:00
fremap.c	…
frontswap.c	mm/frontswap: cleanup doc and comment error	2012-07-23 11:16:20 -04:00
highmem.c	mm: add support for direct_IO to highmem pages	2012-07-31 18:42:47 -07:00
huge_memory.c	…
hugetlb.c	mm: hugetlbfs: close race during teardown of hugetlbfs shared page tables	2012-07-31 18:42:50 -07:00
hugetlb_cgroup.c	hugetlb/cgroup: remove exclude and wakeup rmdir calls from migrate	2012-07-31 18:42:41 -07:00
hwpoison-inject.c	memcg: rename config variables	2012-07-31 18:42:43 -07:00
init-mm.c	…
internal.h	netvm: allow skb allocation to use PFMEMALLOC reserves	2012-07-31 18:42:46 -07:00
kmemcheck.c	…
kmemleak-test.c	…
kmemleak.c	…
ksm.c	…
maccess.c	…
madvise.c	…
memblock.c	mm/memblock.c:memblock_double_array(): cosmetic cleanups	2012-07-31 18:42:41 -07:00
memcontrol.c	memcg: add mem_cgroup_from_css() helper	2012-07-31 18:42:49 -07:00
memory-failure.c	memcg: rename config variables	2012-07-31 18:42:43 -07:00
memory.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-08-01 10:26:23 -07:00
memory_hotplug.c	mm/hotplug: free zone->pageset when a zone becomes empty	2012-07-31 18:42:44 -07:00
mempolicy.c	Merge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux	2012-07-30 11:32:24 -07:00
mempool.c	…
migrate.c	mm: memcg: fix compaction/migration failing due to memcg limits	2012-07-31 18:42:48 -07:00
mincore.c	…
mlock.c	…
mm_init.c	…
mmap.c	Merge branch 'akpm' (Andrew's patch-bomb)	2012-07-31 19:25:39 -07:00
mmu_context.c	…
mmu_notifier.c	mm: mmu_notifier: fix freed page still mapped in secondary MMU	2012-07-31 18:42:49 -07:00
mmzone.c	memcg: rename config variables	2012-07-31 18:42:43 -07:00
mprotect.c	…
mremap.c	mm: account the total_vm in the vm_stat_account()	2012-07-31 18:42:39 -07:00
msync.c	…
nobootmem.c	memblock: free allocated memblock_reserved_regions later	2012-07-11 16:04:50 -07:00
nommu.c	…
oom_kill.c	mm, memcg: move all oom handling to memcontrol.c	2012-07-31 18:42:45 -07:00
page-writeback.c	vfs: kill write_super and sync_supers	2012-08-04 01:24:44 +04:00
page_alloc.c	mm: remove node_start_pfn checking in new WARN_ON for now	2012-08-02 10:37:03 -07:00
page_cgroup.c	memcg: rename config variables	2012-07-31 18:42:43 -07:00
page_io.c	mm: add support for direct_IO to highmem pages	2012-07-31 18:42:47 -07:00
page_isolation.c	memory-hotplug: fix kswapd looping forever problem	2012-07-31 18:42:45 -07:00
pagewalk.c	…
percpu-km.c	…
percpu-vm.c	…
percpu.c	…
pgtable-generic.c	…
prio_tree.c	…
process_vm_access.c	…
quicklist.c	…
readahead.c	…
rmap.c	…
shmem.c	tmpfs: distribute interleave better across nodes	2012-07-31 18:42:50 -07:00
slab.c	mm: micro-optimise slab to avoid a function call	2012-07-31 18:42:46 -07:00
slab.h	…
slab_common.c	mm: Fix build warning in kmem_cache_create()	2012-07-30 13:15:40 +03:00
slob.c	slob: Fix early boot kernel crash	2012-07-12 10:13:22 +03:00
slub.c	mm: slub: optimise the SLUB fast path to avoid pfmemalloc checks	2012-07-31 18:42:45 -07:00
sparse-vmemmap.c	…
sparse.c	mm/sparse: remove index_init_lock	2012-07-31 18:42:49 -07:00
swap.c	mm: add support for direct_IO to highmem pages	2012-07-31 18:42:47 -07:00
swap_state.c	mm: add support for a filesystem to activate swap files and use direct_IO for writing swap pages	2012-07-31 18:42:47 -07:00
swapfile.c	mm: swapfile: clean up unuse_pte race handling	2012-07-31 18:42:48 -07:00
truncate.c	…
util.c	…
vmalloc.c	mm: make vb_alloc() more foolproof	2012-07-31 18:42:39 -07:00
vmscan.c	memcg: gix memory accounting scalability in shrink_page_list	2012-07-31 18:42:49 -07:00
vmstat.c	mm: account for the number of times direct reclaimers get throttled	2012-07-31 18:42:46 -07:00