Igor Redko d6c10a06e3 mm/page_alloc.c: calculate 'available' memory in a separate function ... commit d02bd27bd33dd7e8d22594cd568b81be0cb584cd upstream. Add a new field, VIRTIO_BALLOON_S_AVAIL, to virtio_balloon memory statistics protocol, corresponding to 'Available' in /proc/meminfo. It indicates to the hypervisor how big the balloon can be inflated without pushing the guest system to swap. This metric would be very useful in VM orchestration software to improve memory management of different VMs under overcommit. This patch (of 2): Factor out calculation of the available memory counter into a separate exportable function, in order to be able to use it in other parts of the kernel. In particular, it appears a relevant metric to report to the hypervisor via virtio-balloon statistics interface (in a followup patch). Signed-off-by: Igor Redko <redkoi@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Roman Kagan <rkagan@virtuozzo.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> [bwh: Backported to 4.4 as dependency of commit a1078e821b60 "xen: let alloc_xenballooned_pages() fail if not enough memory free"] Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-04-07 13:36:28 +02:00
..
kasan	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
backing-dev.c	writeback: synchronize sync(2) against cgroup writeback membership switches	2020-04-06 18:12:57 +02:00
balloon_compaction.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
bootmem.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
cleancache.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
cma_debug.c	mm/cma_debug.c: fix the break condition in cma_maxchunk_get()	2020-04-06 19:01:41 +02:00
cma.c	mm/cma.c: fail if fixed declaration can't be honored	2020-04-06 20:27:19 +02:00
cma.h	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
compaction.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
debug-pagealloc.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
debug.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
dmapool.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
early_ioremap.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
fadvise.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
failslab.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
filemap.c	mm/filemap.c: don't initiate writeback if mapping has no dirty pages	2020-04-07 11:58:51 +02:00
frame_vector.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
frontswap.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
gup.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
highmem.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
hpa.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
huge_memory.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
hugetlb_cgroup.c	mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()	2020-04-07 12:26:33 +02:00
hugetlb.c	hugetlbfs: on restore reserve error path retain subpool reservation	2020-04-06 19:01:37 +02:00
hwpoison-inject.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
init-mm.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
internal.h	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
interval_tree.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
io_record.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
Kconfig	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
Kconfig.debug	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
kmemcheck.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
kmemleak-test.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
kmemleak.c	mm/kmemleak.c: fix check for softirq context	2020-04-06 20:16:21 +02:00
ksm.c	mm/ksm.c: don't WARN if page is still mapped in remove_stable_node()	2020-04-07 12:33:44 +02:00
list_lru.c	mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node	2020-04-06 19:02:54 +02:00
maccess.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
madvise.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
Makefile	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
memblock.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
memcontrol.c	mm: memcg: switch to css_tryget() in get_mem_cgroup_from_mm()	2020-04-07 12:26:31 +02:00
memory_hotplug.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
memory-failure.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
memory.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
mempolicy.c	mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified	2020-04-06 13:43:53 +02:00
mempool.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
memtest.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
migrate.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
mincore.c	mm/mincore.c: make mincore() more conservative	2020-04-06 18:12:28 +02:00
mlock.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
mm_init.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
mmap.c	Revert "coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping"	2020-04-06 22:47:46 +05:30
mmu_context.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
mmu_notifier.c	mm/mmu_notifier: use hlist_add_head_rcu()	2020-04-06 20:16:25 +02:00
mmzone.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
mprotect.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
mremap.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
msync.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
nobootmem.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
nommu.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
oom_kill.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
page_alloc.c	mm/page_alloc.c: calculate 'available' memory in a separate function	2020-04-07 13:36:28 +02:00
page_counter.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
page_ext.c	mm/page_ext.c: fix an imbalance with kmemleak	2020-04-06 14:22:59 +02:00
page_idle.c	mm/page_idle.c: fix oops because end_pfn is larger than max_pfn	2020-04-06 19:14:16 +02:00
page_io.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
page_isolation.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
page_owner.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
page-writeback.c	mm/page-writeback.c: fix range_cyclic writeback vs writepages deadlock	2020-04-07 12:35:37 +02:00
pagewalk.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
percpu-km.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
percpu-vm.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
percpu.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
pgtable-generic.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
process_vm_access.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
quicklist.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
readahead.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
rmap.c	mm/rmap: replace BUG_ON(anon_vma->degree) with VM_WARN_ON	2020-04-06 11:16:40 +02:00
shmem.c	mm/shmem.c: cast the type of unmap_start to u64	2020-04-07 13:08:06 +02:00
showmem_extra.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
slab_common.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
slab.c	mm/slab.c: kmemleak no scan alien caches	2020-04-06 14:23:23 +02:00
slab.h	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
slob.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
slub.c	mm/slub: fix a deadlock in show_slab_objects()	2020-04-07 09:26:52 +02:00
sparse-vmemmap.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
sparse.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
swap_cgroup.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
swap_state.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
swap.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
swapfile.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
truncate.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
usercopy.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
userfaultfd.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
util.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
vmacache.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
vmalloc.c	mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()	2020-04-06 20:38:23 +02:00
vmpressure.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
vmscan.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
vmstat.c	mm, vmstat: hide /proc/pagetypeinfo from normal users	2020-04-07 11:48:32 +02:00
workingset.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
zbud.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
zpool.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
zsmalloc.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30
zswap.c	A750FXXU4CTBC	2020-03-27 21:51:54 +05:30