Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-28 13:51:44 +00:00
Code Issues Packages Projects Releases Wiki Activity
b430d1fd6c
linux/mm
History
Sergey Senozhatsky b430d1fd6c zsmalloc: drop unused variable `nr_to_migrate' 
This patchset tweaks compaction and makes it possible to trigger pool
compaction automatically when system is getting low on memory.

zsmalloc in some cases can suffer from a notable fragmentation and
compaction can release some considerable amount of memory.  The problem
here is that currently we fully rely on user space to perform compaction
when needed.  However, performing zsmalloc compaction is not always an
obvious thing to do.  For example, suppose we have a `idle' fragmented
(compaction was never performed) zram device and system is getting low
on memory due to some 3rd party user processes (gcc LTO, or firefox,
etc.).  It's quite unlikely that user space will issue zpool compaction
in this case.  Besides, user space cannot tell for sure how badly pool
is fragmented; however, this info is known to zsmalloc and, hence, to a
shrinker.

This patch (of 7):

__zs_compact() does not use `nr_to_migrate', drop it.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-08 15:35:28 -07:00
..
kasan x86/kasan, mm: Introduce generic kasan_populate_zero_shadow() 2015-08-22 14:54:55 +02:00
backing-dev.c inode: rename i_wb_list to i_io_list 2015-08-17 23:38:10 -04:00
balloon_compaction.c
bootmem.c bootmem: avoid freeing to bootmem after bootmem is done 2015-09-08 15:35:28 -07:00
cleancache.c cleancache: remove limit on the number of cleancache enabled filesystems 2015-04-14 16:49:03 -07:00
cma_debug.c mm/cma_debug: correct size input to bitmap function 2015-07-17 16:39:54 -07:00
cma.c mm/memblock: add extra "flags" to memblock to allow selection of memory based on attribute 2015-06-24 17:49:44 -07:00
cma.h mm: cma: mark cma_bitmap_maxno() inline in header 2015-08-14 15:56:32 -07:00
compaction.c mm/compaction: correct to flush migrated pages if pageblock skip happens 2015-09-08 15:35:28 -07:00
debug-pagealloc.c
debug.c tracing: Rename ftrace_event.h to trace_events.h 2015-05-13 14:05:12 -04:00
dmapool.c mm: add support for __GFP_ZERO flag to dma_pool_alloc() 2015-09-08 15:35:28 -07:00
early_ioremap.c mm: add utility for early copy from unmapped ram 2015-09-08 15:35:28 -07:00
fadvise.c writeback: implement and use inode_congested() 2015-06-02 08:33:35 -06:00
failslab.c
filemap.c mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
frontswap.c frontswap: allow multiple backends 2015-06-24 17:49:45 -07:00
gup.c mm: make GUP handle pfn mapping unless FOLL_GET is requested 2015-09-04 16:54:41 -07:00
highmem.c
huge_memory.c mm/khugepaged: allow interruption of allocation sleep again 2015-09-08 15:35:28 -07:00
hugetlb_cgroup.c mm: page_counter: pull "-1" handling out of page_counter_memparse() 2015-02-11 17:06:02 -08:00
hugetlb.c mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
hwpoison-inject.c mm/hwpoison: fix refcount of THP head page in no-injection case 2015-09-08 15:35:28 -07:00
init-mm.c
internal.h mm/compaction: correct to flush migrated pages if pageblock skip happens 2015-09-08 15:35:28 -07:00
interval_tree.c mm: replace vma->sharead.linear with vma->shared 2015-02-10 14:30:31 -08:00
Kconfig mm/Kconfig: NEED_BOUNCE_POOL: clean-up condition 2015-07-23 20:59:41 +02:00
Kconfig.debug mm/debug_pagealloc: remove obsolete Kconfig options 2015-01-08 15:10:52 -08:00
kmemcheck.c
kmemleak-test.c
kmemleak.c kmemleak: record accurate early log buffer count and report when exceeded 2015-09-08 15:35:28 -07:00
ksm.c mm: remove rest of ACCESS_ONCE() usages 2015-04-15 16:35:18 -07:00
list_lru.c list_lru: don't call list_lru_from_kmem if the list_head is empty 2015-09-08 15:35:28 -07:00
maccess.c lib: move strncpy_from_unsafe() into mm/maccess.c 2015-08-31 12:36:10 -07:00
madvise.c mm: madvise allow remove operation for hugetlbfs 2015-09-08 15:35:28 -07:00
Makefile userfaultfd: mcopy_atomic|mfill_zeropage: UFFDIO_COPY|UFFDIO_ZEROPAGE preparation 2015-09-04 16:54:41 -07:00
memblock.c mm/memblock.c: fix comment in __next_mem_range() 2015-09-08 15:35:28 -07:00
memcontrol.c memcg: move memcg_proto_active from sock.h 2015-09-08 15:35:28 -07:00
memory_hotplug.c memory-hotplug: add hot-added memory ranges to memblock before allocate node_data for a node. 2015-09-04 16:54:41 -07:00
memory-failure.c mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
memory.c mm, dax: use i_mmap_unlock_write() in do_cow_fault() 2015-09-08 15:35:28 -07:00
mempolicy.c mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
mempool.c mm/mempool: allow NULL `pool' pointer in mempool_destroy() 2015-09-08 15:35:28 -07:00
memtest.c memtest: remove unused header files 2015-09-08 15:35:28 -07:00
migrate.c mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
mincore.c mincore: apply page table walker on do_mincore() 2015-02-11 17:06:06 -08:00
mlock.c userfaultfd: teach vma_merge to merge across vma->vm_userfaultfd_ctx 2015-09-04 16:54:41 -07:00
mm_init.c mm: meminit: remove mminit_verify_page_links 2015-06-30 19:44:56 -07:00
mmap.c mm/mmap.c:insert_vm_struct(): check for failure before setting values 2015-09-08 15:35:28 -07:00
mmu_context.c
mmu_notifier.c
mmzone.c mm: microoptimize zonelist operations 2015-02-11 17:06:02 -08:00
mprotect.c userfaultfd: teach vma_merge to merge across vma->vm_userfaultfd_ctx 2015-09-04 16:54:41 -07:00
mremap.c mremap: simplify the "overlap" check in mremap_to() 2015-09-04 16:54:41 -07:00
msync.c mm: remove rest usage of VM_NONLINEAR and pte_file() 2015-02-10 14:30:31 -08:00
nobootmem.c mm: page_alloc: pass PFN to __free_pages_bootmem 2015-06-30 19:44:55 -07:00
nommu.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2015-09-01 18:46:42 -07:00
oom_kill.c mm, oom: remove unnecessary variable 2015-09-08 15:35:28 -07:00
page_alloc.c mm/page_alloc.c: fix type information of memoryless node 2015-09-08 15:35:28 -07:00
page_counter.c mm: page_counter: pull "-1" handling out of page_counter_memparse() 2015-02-11 17:06:02 -08:00
page_ext.c
page_io.c fs: use helper bio_add_page() instead of open coding on bi_io_vec 2015-08-13 12:32:00 -06:00
page_isolation.c mm, page_isolation: make set/unset_migratetype_isolate() file-local 2015-09-08 15:35:28 -07:00
page_owner.c mm/page_owner: set correct gfp_mask on page_owner 2015-07-17 16:39:54 -07:00
page-writeback.c writeback: fix initial dirty limit 2015-08-07 04:39:42 +03:00
pagewalk.c mm/pagewalk.c: prevent positive return value of walk_page_test() from being passed to callers 2015-03-25 16:20:30 -07:00
percpu-km.c
percpu-vm.c
percpu.c percpu: clean up of schunk->map[] assignment in pcpu_setup_first_chunk 2015-07-21 11:31:00 -04:00
pgtable-generic.c mm: clarify that the function operates on hugepage pte 2015-06-24 17:49:44 -07:00
process_vm_access.c process_vm_access: switch to {compat_,}import_iovec() 2015-04-11 22:27:12 -04:00
quicklist.c
readahead.c writeback: implement and use inode_congested() 2015-06-02 08:33:35 -06:00
rmap.c mm: defer flush of writable TLB entries 2015-09-04 16:54:41 -07:00
shmem.c shmem: recalculate file inode when fstat 2015-09-08 15:35:28 -07:00
slab_common.c memcg: export struct mem_cgroup 2015-09-08 15:35:28 -07:00
slab.c mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
slab.h mm/slab.h: fix argument order in cache_from_obj's error message 2015-09-04 16:54:41 -07:00
slob.c mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
slub.c mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
sparse-vmemmap.c
sparse.c
swap_cgroup.c
swap_state.c mm: remove rest of ACCESS_ONCE() usages 2015-04-15 16:35:18 -07:00
swap.c mm: drop bogus VM_BUG_ON_PAGE assert in put_page() codepath 2015-06-24 17:49:42 -07:00
swapfile.c mm: /proc/pid/smaps:: show proportional swap share of the mapping 2015-09-08 15:35:28 -07:00
truncate.c memcg: add per cgroup dirty page accounting 2015-06-02 08:33:33 -06:00
userfaultfd.c userfaultfd: avoid mmap_sem read recursion in mcopy_atomic 2015-09-04 16:54:41 -07:00
util.c mm: uninline and cleanup page-mapping related helpers 2015-04-15 16:35:19 -07:00
vmacache.c mm,vmacache: count number of system-wide flushes 2014-12-13 12:42:48 -08:00
vmalloc.c mm/vmalloc: get rid of dirty bitmap inside vmap_block structure 2015-04-15 16:35:18 -07:00
vmpressure.c
vmscan.c mm, vmscan: unlock page while waiting on writeback 2015-09-08 15:35:28 -07:00
vmstat.c vmstat: Reduce time interval to stat update on idle cpu 2015-02-11 17:06:07 -08:00
workingset.c list_lru: add helpers to isolate items 2015-02-12 18:54:10 -08:00
zbud.c zpool: remove zpool_evict() 2015-06-25 17:00:37 -07:00
zpool.c zpool: remove zpool_evict() 2015-06-25 17:00:37 -07:00
zsmalloc.c zsmalloc: drop unused variable `nr_to_migrate' 2015-09-08 15:35:28 -07:00
zswap.c zswap: runtime enable/disable 2015-06-25 17:00:37 -07:00