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Michal Hocko 19809c2da2 mm, vmalloc: use __GFP_HIGHMEM implicitly ... __vmalloc* allows users to provide gfp flags for the underlying allocation. This API is quite popular $ git grep "=[[:space:]]__vmalloc\|return[[:space:]]*__vmalloc" | wc -l 77 The only problem is that many people are not aware that they really want to give __GFP_HIGHMEM along with other flags because there is really no reason to consume precious lowmemory on CONFIG_HIGHMEM systems for pages which are mapped to the kernel vmalloc space. About half of users don't use this flag, though. This signals that we make the API unnecessarily too complex. This patch simply uses __GFP_HIGHMEM implicitly when allocating pages to be mapped to the vmalloc space. Current users which add __GFP_HIGHMEM are simplified and drop the flag. Link: http://lkml.kernel.org/r/20170307141020.29107-1-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: Cristopher Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		8 years ago
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kasan	mm, vmalloc: use __GFP_HIGHMEM implicitly	8 years ago
Kconfig	mm: remove AVR32 arch special handling in mm/Kconfig	8 years ago
Kconfig.debug	mm: enable page poisoning early at boot	8 years ago
Makefile	mm: add arch-independent testcases for RODATA	8 years ago
backing-dev.c	bdi: Drop 'parent' argument from bdi_register[_va]()	8 years ago
balloon_compaction.c	…
bootmem.c	mm/bootmem.c: cosmetic improvement of code readability	8 years ago
cleancache.c	…
cma.c	cma: Introduce cma_for_each_area	8 years ago
cma.h	cma: Store a name in the cma structure	8 years ago
cma_debug.c	cma: Store a name in the cma structure	8 years ago
compaction.c	mm, compaction: finish whole pageblock to reduce fragmentation	8 years ago
debug.c	mm, debug: print raw struct page data in __dump_page()	8 years ago
debug_page_ref.c	…
dmapool.c	lib/vsprintf.c: remove %Z support	8 years ago
early_ioremap.c	…
fadvise.c	mm: fadvise: avoid expensive remote LRU cache draining after FADV_DONTNEED	8 years ago
failslab.c	…
filemap.c	fs: fix data invalidation in the cleancache during direct IO	8 years ago
frame_vector.c	treewide: use kv[mz]alloc* rather than opencoded variants	8 years ago
frontswap.c	…
gup.c	mm/gup.c: fix access_ok() argument type	8 years ago
highmem.c	…
huge_memory.c	mm: make ttu's return boolean	8 years ago
hugetlb.c	mm/hugetlb.c: don't call region_abort if region_chg fails	8 years ago
hugetlb_cgroup.c	…
hwpoison-inject.c	mm: hwpoison: call shake_page() unconditionally	8 years ago
init-mm.c	…
internal.h	mm, compaction: finish whole pageblock to reduce fragmentation	8 years ago
interval_tree.c	…
khugepaged.c	mm: do not use double negation for testing page flags	8 years ago
kmemcheck.c	…
kmemleak-test.c	…
kmemleak.c	mm: fix section name for .data..ro_after_init	8 years ago
ksm.c	mm: make rmap_one boolean function	8 years ago
list_lru.c	…
maccess.c	…
madvise.c	mm/madvise: move up the behavior parameter validation	8 years ago
memblock.c	memblock: add memblock_cap_memory_range()	8 years ago
memcontrol.c	mm: memcontrol: use node page state naming scheme for memcg	8 years ago
memory-failure.c	mm: hwpoison: call shake_page() after try_to_unmap() for mlocked page	8 years ago
memory.c	Merge branch 'parisc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux into uaccess.parisc	8 years ago
memory_hotplug.c	mm, vmscan: prevent kswapd sleeping prematurely due to mismatched classzone_idx	8 years ago
mempolicy.c	mm/mempolicy.c: fix error handling in set_mempolicy and mbind.	8 years ago
mempool.c	…
memtest.c	…
migrate.c	mm: make rmap_one boolean function	8 years ago
mincore.c	mm: remove shmem_mapping() shmem_zero_setup() duplicates	8 years ago
mlock.c	mm: make try_to_munlock() return void	8 years ago
mm_init.c	…
mmap.c	mm/mmap: replace SHM_HUGE_MASK with MAP_HUGE_MASK inside mmap_pgoff	8 years ago
mmu_context.c	sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>	8 years ago
mmu_notifier.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	8 years ago
mmzone.c	mm/mmzone.c: swap likely to unlikely as code logic is different for next_zones_zonelist()	8 years ago
mprotect.c	mm: convert generic code to 5-level paging	8 years ago
mremap.c	mm: convert generic code to 5-level paging	8 years ago
msync.c	…
nobootmem.c	…
nommu.c	mm, vmalloc: use __GFP_HIGHMEM implicitly	8 years ago
oom_kill.c	oom: improve oom disable handling	8 years ago
page-writeback.c	mm: memcontrol: use node page state naming scheme for memcg	8 years ago
page_alloc.c	mm, compaction: restrict async compaction to pageblocks of same migratetype	8 years ago
page_counter.c	…
page_ext.c	mm: enable page poisoning early at boot	8 years ago
page_idle.c	mm: make rmap_one boolean function	8 years ago
page_io.c	…
page_isolation.c	mm, page_alloc: count movable pages when stealing from pageblock	8 years ago
page_owner.c	…
page_poison.c	mm: enable page poisoning early at boot	8 years ago
page_vma_mapped.c	mm: fix page_vma_mapped_walk() for ksm pages	8 years ago
pagewalk.c	mm: convert generic code to 5-level paging	8 years ago
percpu-km.c	…
percpu-vm.c	percpu: remove unused chunk_alloc parameter from pcpu_get_pages()	8 years ago
percpu.c	Merge branch 'sched/core' into locking/core	8 years ago
pgtable-generic.c	mm: convert generic code to 5-level paging	8 years ago
process_vm_access.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	8 years ago
quicklist.c	…
readahead.c	…
rmap.c	mm: memcontrol: use node page state naming scheme for memcg	8 years ago
rodata_test.c	mm: remove rodata_test_data export, add pr_fmt	8 years ago
shmem.c	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	8 years ago
slab.c	slab: avoid IPIs when creating kmem caches	8 years ago
slab.h	slab: remove synchronous synchronize_sched() from memcg cache deactivation path	8 years ago
slab_common.c	kasan: drain quarantine of memcg slab objects	8 years ago
slob.c	slab: introduce __kmemcg_cache_deactivate()	8 years ago
slub.c	slub: make sysfs directories for memcg sub-caches optional	8 years ago
sparse-vmemmap.c	mm: convert generic code to 5-level paging	8 years ago
sparse.c	mm/sparse: refine usemap_size() a little	8 years ago
swap.c	mm: move MADV_FREE pages into LRU_INACTIVE_FILE list	8 years ago
swap_cgroup.c	mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff()	8 years ago
swap_slots.c	mm, swap: use kvzalloc to allocate some swap data structures	8 years ago
swap_state.c	mm, swap: use kvzalloc to allocate some swap data structures	8 years ago
swapfile.c	mm, swap: use kvzalloc to allocate some swap data structures	8 years ago
truncate.c	mm/truncate: avoid pointless cleancache_invalidate_inode() calls.	8 years ago
usercopy.c	mm/usercopy: Drop extra is_vmalloc_or_module() check	8 years ago
userfaultfd.c	mm: convert generic code to 5-level paging	8 years ago
util.c	mm, vmalloc: use __GFP_HIGHMEM implicitly	8 years ago
vmacache.c	sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>	8 years ago
vmalloc.c	mm, vmalloc: use __GFP_HIGHMEM implicitly	8 years ago
vmpressure.c	mm: vmpressure: fix sending wrong events on underflow	8 years ago
vmscan.c	mm: memcontrol: use node page state naming scheme for memcg	8 years ago
vmstat.c	mm, vmstat: suppress pcp stats for unpopulated zones in zoneinfo	8 years ago
workingset.c	mm: memcontrol: use node page state naming scheme for memcg	8 years ago
z3fold.c	z3fold: fix page locking in z3fold_alloc()	8 years ago
zbud.c	…
zpool.c	…
zsmalloc.c	zsmalloc: expand class bit	8 years ago
zswap.c	zswap: don't param_set_charp while holding spinlock	8 years ago