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linux/mm
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Jan Kara 8025e5ddf9 [media] mm: Provide new get_vaddr_frames() helper 
Provide new function get_vaddr_frames().  This function maps virtual
addresses from given start and fills given array with page frame numbers of
the corresponding pages. If given start belongs to a normal vma, the function
grabs reference to each of the pages to pin them in memory. If start
belongs to VM_IO | VM_PFNMAP vma, we don't touch page structures. Caller
must make sure pfns aren't reused for anything else while he is using
them.

This function is created for various drivers to simplify handling of
their buffers.

Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-16 13:02:47 -03:00
..
kasan kasan: remove duplicate definition of the macro KASAN_FREE_PAGE 2015-06-25 17:00:42 -07:00
backing-dev.c writeback: don't drain bdi_writeback_congested on bdi destruction 2015-07-02 08:46:00 -06:00
balloon_compaction.c mm/balloon_compaction: fix deflation when compaction is disabled 2014-10-29 16:33:15 -07:00
bootmem.c mm: page_alloc: pass PFN to __free_pages_bootmem 2015-06-30 19:44:55 -07:00
cleancache.c cleancache: remove limit on the number of cleancache enabled filesystems 2015-04-14 16:49:03 -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: allocation trigger 2015-04-14 16:49:00 -07:00
cma_debug.c mm/cma_debug.c: remove blank lines before DEFINE_SIMPLE_ATTRIBUTE() 2015-04-15 16:35:20 -07:00
compaction.c mm/compaction.c: fix "suitable_migration_target() unused" warning 2015-04-15 16:35:20 -07:00
debug-pagealloc.c mm/debug-pagealloc: make debug-pagealloc boottime configurable 2014-12-13 12:42:48 -08:00
debug.c tracing: Rename ftrace_event.h to trace_events.h 2015-05-13 14:05:12 -04:00
dmapool.c mm/dmapool.c: fixed a brace coding style issue 2014-10-09 22:26:00 -04:00
early_ioremap.c mm: create generic early_ioremap() support 2014-04-07 16:36:15 -07:00
fadvise.c writeback: implement and use inode_congested() 2015-06-02 08:33:35 -06:00
failslab.c
filemap.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
frame_vector.c [media] mm: Provide new get_vaddr_frames() helper 2015-08-16 13:02:47 -03:00
frontswap.c frontswap: allow multiple backends 2015-06-24 17:49:45 -07:00
gup.c mm: use READ_ONCE() for non-scalar types 2015-04-15 16:35:18 -07:00
highmem.c mm/highmem: make kmap cache coloring aware 2014-08-06 18:01:22 -07:00
huge_memory.c mm: clarify that the function operates on hugepage pte 2015-06-24 17:49:44 -07:00
hugetlb.c mm/hugetlb: remove unused arch hook prepare/release_hugepage 2015-06-25 17:00:35 -07:00
hugetlb_cgroup.c mm: page_counter: pull "-1" handling out of page_counter_memparse() 2015-02-11 17:06:02 -08:00
hwpoison-inject.c mm/memory-failure: introduce get_hwpoison_page() for consistent refcount handling 2015-06-24 17:49:42 -07:00
init-mm.c
internal.h mm: meminit: finish initialisation of struct pages before basic setup 2015-06-30 19:44:56 -07:00
interval_tree.c mm: replace vma->sharead.linear with vma->shared 2015-02-10 14:30:31 -08:00
Kconfig [media] mm: Provide new get_vaddr_frames() helper 2015-08-16 13:02:47 -03:00
Kconfig.debug mm/debug_pagealloc: remove obsolete Kconfig options 2015-01-08 15:10:52 -08:00
kmemcheck.c mm/slab_common: move kmem_cache definition to internal header 2014-10-09 22:25:50 -04:00
kmemleak-test.c mm/kmemleak-test.c: use pr_fmt for logging 2014-06-06 16:08:18 -07:00
kmemleak.c mm: kmemleak_alloc_percpu() should follow the gfp from per_alloc() 2015-06-24 17:49:46 -07:00
ksm.c mm: remove rest of ACCESS_ONCE() usages 2015-04-15 16:35:18 -07:00
list_lru.c memcg: reparent list_lrus and free kmemcg_id on css offline 2015-02-12 18:54:10 -08:00
maccess.c
madvise.c writeback: separate out include/linux/backing-dev-defs.h 2015-06-02 08:33:34 -06:00
Makefile [media] mm: Provide new get_vaddr_frames() helper 2015-08-16 13:02:47 -03:00
memblock.c mm: page_alloc: pass PFN to __free_pages_bootmem 2015-06-30 19:44:55 -07:00
memcontrol.c Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block 2015-06-25 16:00:17 -07:00
memory-failure.c tracing: add trace event for memory-failure 2015-06-24 17:49:43 -07:00
memory.c mm: avoid setting up anonymous pages into file mapping 2015-07-09 11:12:48 -07:00
memory_hotplug.c mm/memory hotplug: print the last vmemmap region at the end of hot add memory 2015-06-24 17:49:45 -07:00
mempolicy.c mm, thp: respect MPOL_PREFERRED policy with non-local node 2015-06-24 17:49:46 -07:00
mempool.c mm/mempool.c: kasan: poison mempool elements 2015-04-15 16:35:20 -07:00
memtest.c mm/memblock: add extra "flags" to memblock to allow selection of memory based on attribute 2015-06-24 17:49:44 -07:00
migrate.c mm: clarify that the function operates on hugepage pte 2015-06-24 17:49:44 -07:00
mincore.c mincore: apply page table walker on do_mincore() 2015-02-11 17:06:06 -08:00
mlock.c mm: move mm_populate()-related code to mm/gup.c 2015-04-14 16:49:00 -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: optimization of do_mmap_pgoff function 2015-06-24 17:49:45 -07:00
mmu_context.c sched/mm: call finish_arch_post_lock_switch in idle_task_exit and use_mm 2014-02-21 08:50:17 +01:00
mmu_notifier.c mmu_notifier: add the callback for mmu_notifier_invalidate_range() 2014-11-13 13:46:09 +11:00
mmzone.c mm: microoptimize zonelist operations 2015-02-11 17:06:02 -08:00
mprotect.c mm: fix mprotect() behaviour on VM_LOCKED VMAs 2015-06-24 17:49:41 -07:00
mremap.c mm: new arch_remap() hook 2015-06-24 17:49:41 -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 Replace module_init with appropriate alternate initcall in non modules. 2015-07-02 10:36:29 -07:00
oom_kill.c mm/oom_kill.c: print points as unsigned int 2015-06-24 17:49:44 -07:00
page-writeback.c Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block 2015-06-25 16:00:17 -07:00
page_alloc.c mm: meminit: finish initialisation of struct pages before basic setup 2015-06-30 19:44:56 -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 mm/page_owner: keep track of page owners 2014-12-13 12:42:48 -08:00
page_io.c suspend: simplify block I/O handling 2015-05-19 09:19:59 -06:00
page_isolation.c CMA: page_isolation: check buddy before accessing it 2015-05-14 17:55:51 -07:00
page_owner.c mm/page_owner.c: use late_initcall to hook in enabling 2015-06-16 14:12:35 -04:00
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: implmeent pcpu_nr_empty_pop_pages and chunk->nr_populated 2014-09-02 14:46:05 -04:00
percpu-vm.c percpu: move region iterations out of pcpu_[de]populate_chunk() 2014-09-02 14:46:02 -04:00
percpu.c mm: kmemleak_alloc_percpu() should follow the gfp from per_alloc() 2015-06-24 17:49:46 -07:00
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 Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block 2015-06-25 16:00:17 -07:00
shmem.c tmpfs: truncate prealloc blocks past i_size 2015-06-24 17:49:45 -07:00
slab.c slab: correct size_index table before replacing the bootstrap kmem_cache_node 2015-06-24 17:49:41 -07:00
slab.h slab: correct size_index table before replacing the bootstrap kmem_cache_node 2015-06-24 17:49:41 -07:00
slab_common.c Add __init attribute to new_kmalloc_cache 2015-07-01 14:22:33 -07:00
slob.c slob: make slob_alloc_node() static and remove EXPORT_SYMBOL() 2015-04-14 16:48:59 -07:00
slub.c slab: correct size_index table before replacing the bootstrap kmem_cache_node 2015-06-24 17:49:41 -07:00
sparse-vmemmap.c mm/sparse: use memblock apis for early memory allocations 2014-01-21 16:19:47 -08:00
sparse.c mm: use macros from compiler.h instead of __attribute__((...)) 2014-04-07 16:35:54 -07:00
swap.c mm: drop bogus VM_BUG_ON_PAGE assert in put_page() codepath 2015-06-24 17:49:42 -07:00
swap_cgroup.c mm: page_cgroup: rename file to mm/swap_cgroup.c 2014-12-10 17:41:09 -08:00
swap_state.c mm: remove rest of ACCESS_ONCE() usages 2015-04-15 16:35:18 -07:00
swapfile.c vfs: add seq_file_path() helper 2015-06-23 18:01:07 -04:00
truncate.c memcg: add per cgroup dirty page accounting 2015-06-02 08:33:33 -06:00
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 mm/vmpressure.c: fix race in vmpressure_work_fn() 2014-12-02 17:32:07 -08:00
vmscan.c mm: meminit: finish initialisation of struct pages before basic setup 2015-06-30 19:44:56 -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 zpool: remove zpool_evict() 2015-06-25 17:00:37 -07:00
zswap.c zswap: runtime enable/disable 2015-06-25 17:00:37 -07:00