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Al Viro fcb14cb1bd new iov_iter flavour - ITER_UBUF 
Equivalent of single-segment iovec.  Initialized by iov_iter_ubuf(),
checked for by iter_is_ubuf(), otherwise behaves like ITER_IOVEC
ones.

We are going to expose the things like ->write_iter() et.al. to those
in subsequent commits.

New predicate (user_backed_iter()) that is true for ITER_IOVEC and
ITER_UBUF; places like direct-IO handling should use that for
checking that pages we modify after getting them from iov_iter_get_pages()
would need to be dirtied.

DO NOT assume that replacing iter_is_iovec() with user_backed_iter()
will solve all problems - there's code that uses iter_is_iovec() to
decide how to poke around in iov_iter guts and for that the predicate
replacement obviously won't suffice.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 		2022-08-08 22:37:15 -04:00
..
damon mm/damon: use set_huge_pte_at() to make huge pte old 2022-07-03 15:42:32 -07:00
kasan mm: kasan: Ensure the tags are visible before the tag in page->flags 2022-07-07 10:48:37 +01:00
kfence mm: kfence: apply kmemleak_ignore_phys on early allocated pool 2022-07-18 15:07:51 -07:00
Kconfig mm: Kconfig: reorganize misplaced mm options 2022-05-27 09:33:47 -07:00
Kconfig.debug Two followon fixes for the post-5.19 series "Use pageblock_order for cma 2022-05-27 11:40:49 -07:00
Makefile mm: hugetlb_vmemmap: cleanup CONFIG_HUGETLB_PAGE_FREE_VMEMMAP* 2022-04-28 23:16:15 -07:00
backing-dev.c init: Initialize noop_backing_dev_info early 2022-06-16 10:55:57 +02:00
balloon_compaction.c mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
bootmem_info.c
…
cma.c Revert "mm/cma.c: remove redundant cma_mutex lock" 2022-05-13 15:11:26 -07:00
cma.h
…
cma_debug.c
…
cma_sysfs.c
…
compaction.c fs: Remove aops->migratepage() 2022-08-02 12:34:04 -04:00
debug.c
…
debug_page_ref.c
…
debug_vm_pgtable.c mm/debug_vm_pgtable: add tests for __HAVE_ARCH_PTE_SWP_EXCLUSIVE 2022-05-09 18:20:45 -07:00
dmapool.c
…
early_ioremap.c
…
fadvise.c
…
failslab.c mm: fix missing handler for __GFP_NOWARN 2022-05-19 14:08:55 -07:00
filemap.c Folio changes for 6.0 2022-08-03 10:35:43 -07:00
folio-compat.c mm/folio-compat: Remove migration compatibility functions 2022-08-02 12:34:04 -04:00
frontswap.c
…
gup.c mm: fix missing wake-up event for FSDAX pages 2022-07-18 15:07:51 -07:00
gup_test.c
…
gup_test.h
…
highmem.c highmem: Make __kunmap_{local,atomic}() take const void pointer 2022-07-25 17:45:40 +02:00
hmm.c mm/hmm: fault non-owner device private entries 2022-07-29 11:33:37 -07:00
huge_memory.c mm: Account dirty folios properly during splits 2022-06-29 08:49:43 -04:00
hugetlb.c Folio changes for 6.0 2022-08-03 10:35:43 -07:00
hugetlb_cgroup.c
…
hugetlb_vmemmap.c mm: hugetlb_vmemmap: fix CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON 2022-06-01 15:57:16 -07:00
hugetlb_vmemmap.h mm: hugetlb_vmemmap: cleanup CONFIG_HUGETLB_PAGE_FREE_VMEMMAP* 2022-04-28 23:16:15 -07:00
hwpoison-inject.c mm/memory-failure: disable unpoison once hw error happens 2022-06-16 19:11:32 -07:00
init-mm.c
…
internal.h memblock: Disable mirror feature if kernelcore is not specified 2022-06-15 12:14:33 +02:00
interval_tree.c
…
io-mapping.c
…
ioremap.c mm: ioremap: Add ioremap/iounmap_allowed() 2022-06-27 12:22:31 +01:00
khugepaged.c mm: khugepaged: introduce khugepaged_enter_vma() helper 2022-05-19 14:08:50 -07:00
kmemleak.c
…
ksm.c mm/folio-compat: Remove migration compatibility functions 2022-08-02 12:34:04 -04:00
list_lru.c
…
maccess.c
…
madvise.c mm/memory-failure: disable unpoison once hw error happens 2022-06-16 19:11:32 -07:00
mapping_dirty_helpers.c
…
memblock.c memblock: Disable mirror feature if kernelcore is not specified 2022-06-15 12:14:33 +02:00
memcontrol.c mm: memcontrol: reference to tools/cgroup/memcg_slabinfo.py 2022-06-16 19:11:32 -07:00
memfd.c
…
memory-failure.c Folio changes for 6.0 2022-08-03 10:35:43 -07:00
memory.c Thirteen hotfixes, Eight are cc:stable and the remainder are for post-5.18 2022-07-26 19:38:46 -07:00
memory_hotplug.c mm: hugetlb_vmemmap: add hugetlb_optimize_vmemmap sysctl 2022-05-13 16:48:56 -07:00
mempolicy.c mm/mempolicy: fix uninit-value in mpol_rebind_policy() 2022-05-19 14:08:54 -07:00
mempool.c
…
memremap.c mm: fix missing wake-up event for FSDAX pages 2022-07-18 15:07:51 -07:00
memtest.c
…
migrate.c fs: Remove aops->migratepage() 2022-08-02 12:34:04 -04:00
migrate_device.c mm/migrate: Convert migrate_page() to migrate_folio() 2022-08-02 12:34:04 -04:00
mincore.c mm: teach core mm about pte markers 2022-05-13 07:20:09 -07:00
mlock.c
…
mm_init.c
…
mmap.c powerpc updates for 5.19 2022-05-28 11:27:17 -07:00
mmap_lock.c
…
mmu_gather.c mm/mmu_gather: limit free batch count and add schedule point in tlb_batch_pages_flush 2022-04-28 23:16:12 -07:00
mmu_notifier.c
…
mmzone.c
…
mprotect.c mm/hugetlb: handle UFFDIO_WRITEPROTECT 2022-05-13 07:20:11 -07:00
mremap.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
msync.c
…
nommu.c
…
oom_kill.c mm/oom_kill.c: fix vm_oom_kill_table[] ifdeffery 2022-06-01 15:57:16 -07:00
page-writeback.c mm: Add balance_dirty_pages_ratelimited_flags() function 2022-07-24 18:39:31 -06:00
page_alloc.c EFI updates for v5.20 2022-08-03 14:38:02 -07:00
page_counter.c
…
page_ext.c mm: use for_each_online_node and node_online instead of open coding 2022-04-29 14:36:58 -07:00
page_idle.c mm: don't be stuck to rmap lock on reclaim path 2022-05-19 14:08:54 -07:00
page_io.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
page_isolation.c mm/page_isolation.c: fix one kernel-doc comment 2022-06-16 19:11:30 -07:00
page_owner.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
page_poison.c
…
page_reporting.c
…
page_reporting.h
…
page_table_check.c Six hotfixes. One from Miaohe Lin is considered a minor thing so it isn't 2022-05-27 11:29:35 -07:00
page_vma_mapped.c mm: pvmw: add support for walking devmap pages 2022-04-28 23:16:10 -07:00
pagewalk.c
…
percpu-internal.h percpu: improve percpu_alloc_percpu event trace 2022-05-13 07:20:18 -07:00
percpu-km.c
…
percpu-stats.c
…
percpu-vm.c
…
percpu.c percpu: improve percpu_alloc_percpu event trace 2022-05-13 07:20:18 -07:00
pgalloc-track.h
…
pgtable-generic.c mm: avoid unnecessary flush on change_huge_pmd() 2022-05-13 07:20:05 -07:00
process_vm_access.c
…
ptdump.c
…
readahead.c filemap: Fix serialization adding transparent huge pages to page cache 2022-06-23 12:22:00 -04:00
rmap.c mm/rmap: fix dereferencing invalid subpage pointer in try_to_migrate_one() 2022-07-03 15:42:33 -07:00
rodata_test.c
…
secretmem.c Folio changes for 6.0 2022-08-03 10:35:43 -07:00
shmem.c new iov_iter flavour - ITER_UBUF 2022-08-08 22:37:15 -04:00
shuffle.c
…
shuffle.h
…
slab.c mm/sl[au]b: use own bulk free function when bulk alloc failed 2022-07-20 13:30:11 +02:00
slab.h mm/slab_common: move generic bulk alloc/free functions to SLOB 2022-07-20 13:30:12 +02:00
slab_common.c mm/slab_common: move generic bulk alloc/free functions to SLOB 2022-07-20 13:30:12 +02:00
slob.c mm/slab_common: move generic bulk alloc/free functions to SLOB 2022-07-20 13:30:12 +02:00
slub.c mm/sl[au]b: use own bulk free function when bulk alloc failed 2022-07-20 13:30:11 +02:00
sparse-vmemmap.c EFI updates for v5.20 2022-08-03 14:38:02 -07:00
sparse.c mm/memory-failure.c: move clear_hwpoisoned_pages 2022-05-13 07:20:19 -07:00
swap.c Folio changes for 6.0 2022-08-03 10:35:43 -07:00
swap.h swap: convert add_to_swap() to take a folio 2022-05-13 07:20:15 -07:00
swap_cgroup.c
…
swap_slots.c arm64: enable THP_SWAP for arm64 2022-07-20 10:52:40 +01:00
swap_state.c mm/migrate: Convert migrate_page() to migrate_folio() 2022-08-02 12:34:04 -04:00
swapfile.c Two followon fixes for the post-5.19 series "Use pageblock_order for cma 2022-05-27 11:40:49 -07:00
truncate.c mm: Remove __delete_from_page_cache() 2022-06-29 08:51:05 -04:00
usercopy.c usercopy: use unsigned long instead of uintptr_t 2022-07-01 17:03:38 -07:00
userfaultfd.c mm: userfaultfd: fix UFFDIO_CONTINUE on fallocated shmem pages 2022-07-03 15:42:32 -07:00
util.c mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
vmacache.c
…
vmalloc.c usercopy: Handle vm_map_ram() areas 2022-06-13 09:54:52 -07:00
vmpressure.c
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vmscan.c vmscan: Add check_move_unevictable_folios() 2022-06-29 08:51:06 -04:00
vmstat.c Bitmap patches for 5.19-rc1 2022-06-04 14:04:27 -07:00
workingset.c
…
z3fold.c mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
zbud.c
…
zpool.c
…
zsmalloc.c mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
zswap.c zswap: memcg accounting 2022-05-19 14:08:53 -07:00