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Pavel Begunkov ab2125df92 mm/filemap: don't revert iter on -EIOCBQUEUED 
Currently, if I/O is enqueued for async execution direct paths of
generic_file_{read,write}_iter() will always revert the iter.  There are
no users expecting that, and that is also costly.  Leave iterators as is
on -EIOCBQUEUED.

Link: https://lkml.kernel.org/r/f5247b60e7abbd2ff850cd108491f53a2e0c501a.1610207781.git.asml.silence@gmail.com
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-24 13:38:27 -08:00
..
kasan
kasan: fix stack traces dependency for HW_TAGS
2021-02-09 17:26:44 -08:00
backing-dev.c
mm:backing-dev: use sysfs_emit in macro defining functions
2020-12-15 12:13:47 -08:00
balloon_compaction.c
mm/balloon_compaction: suppress allocation warnings
2019-09-04 07:42:01 -04:00
cleancache.c
…
cma_debug.c
debugfs: make sure we can remove u32_array files cleanly
2020-07-10 13:54:00 -07:00
cma.c
mm: cma: improve pr_debug log in cma_release()
2020-12-15 12:13:46 -08:00
cma.h
mm: cma: use CMA_MAX_NAME to define the length of cma name array
2020-09-01 09:19:43 +02:00
compaction.c
mm, compaction: move high_pfn to the for loop scope
2021-02-05 11:03:47 -08:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm/debug_vm_pgtable/basic: iterate over entire protection_map[]
2021-02-24 13:38:27 -08:00
debug.c
mm/debug: improve memcg debugging
2021-02-24 13:38:27 -08:00
dmapool.c
mm/dmapool.c: replace hard coded function name with __func__
2020-10-13 18:38:32 -07:00
early_ioremap.c
mm/early_ioremap.c: use %pa to print resource_size_t variables
2020-01-31 10:30:38 -08:00
fadvise.c
mm, fadvise: improve the expensive remote LRU cache draining after FADV_DONTNEED
2020-10-13 18:38:29 -07:00
failslab.c
…
filemap.c
mm/filemap: don't revert iter on -EIOCBQUEUED
2021-02-24 13:38:27 -08:00
frontswap.c
mm/frontswap: mark various intentional data races
2020-08-14 19:56:56 -07:00
gup_test.c
mm/gup_test.c: mark gup_test_init as __init function
2020-12-15 12:13:38 -08:00
gup_test.h
selftests/vm: gup_test: introduce the dump_pages() sub-test
2020-12-15 12:13:38 -08:00
gup.c
Merge branch 'akpm' (patches from Andrew)
2020-12-15 12:53:37 -08:00
highmem.c
mm/highmem: prepare for overriding set_pte_at()
2021-01-24 10:34:52 -08:00
hmm.c
mm: do page fault accounting in handle_mm_fault
2020-08-12 10:58:02 -07:00
huge_memory.c
mm: thp: fix MADV_REMOVE deadlock on shmem THP
2021-02-05 11:03:47 -08:00
hugetlb_cgroup.c
hugetlb_cgroup: fix offline of hugetlb cgroup with reservations
2020-12-06 10:19:07 -08:00
hugetlb.c
These changes fix MM (soft-)dirty bit management in the procfs code & clean up the API.
2021-02-21 12:19:56 -08:00
hwpoison-inject.c
mm,hwpoison-inject: don't pin for hwpoison_filter
2020-10-16 11:11:16 -07:00
init-mm.c
mm/gup: prevent gup_fast from racing with COW during fork
2020-12-15 12:13:39 -08:00
internal.h
mm, page_alloc: disable pcplists during memory offline
2020-12-15 12:13:43 -08:00
interval_tree.c
…
ioremap.c
mm: move p?d_alloc_track to separate header file
2020-08-07 11:33:26 -07:00
Kconfig
media: videobuf2: Move frame_vector into media subsystem
2021-01-12 14:15:31 +01:00
Kconfig.debug
mm, page_poison: remove CONFIG_PAGE_POISONING_ZERO
2020-12-15 12:13:46 -08:00
khugepaged.c
mm: Avoid modifying vmf.address in __collapse_huge_page_swapin()
2021-01-21 12:50:18 +00:00
kmemleak.c
mm/kmemleak: rely on rcu for task stack scanning
2020-10-13 18:38:27 -07:00
ksm.c
mm: cleanup kstrto*() usage
2020-12-15 12:13:47 -08:00
list_lru.c
mm: list_lru: set shrinker map bit when child nr_items is not zero
2020-12-06 10:19:07 -08:00
maccess.c
uaccess: add force_uaccess_{begin,end} helpers
2020-08-12 10:57:59 -07:00
madvise.c
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
Makefile
media: videobuf2: Move frame_vector into media subsystem
2021-01-12 14:15:31 +01:00
mapping_dirty_helpers.c
mm/mapping_dirty_helpers: enhance the kernel-doc markups
2020-12-15 12:13:41 -08:00
memblock.c
memblock: remove return value of memblock_free_all()
2021-02-22 13:01:23 -08:00
memcontrol.c
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
memfd.c
mm: page cache: store only head pages in i_pages
2019-09-24 15:54:08 -07:00
memory_hotplug.c
mm: memmap defer init doesn't work as expected
2020-12-29 15:36:49 -08:00
memory-failure.c
mm: fix page reference leak in soft_offline_page()
2021-01-24 10:34:52 -08:00
memory.c
Fixes around VM_FPNMAP and follow_pfn
2021-02-22 17:45:02 -08:00
mempolicy.c
mm: migrate: initialize err in do_migrate_pages
2021-01-12 18:12:54 -08:00
mempool.c
kasan, mm: rename kasan_poison_kfree
2020-12-22 12:55:09 -08:00
memremap.c
mm/mremap_pages: fix static key devmap_managed_key updates
2020-11-02 12:14:18 -08:00
memtest.c
…
migrate.c
mm: migrate: do not migrate HugeTLB page whose refcount is one
2021-02-05 11:03:47 -08:00
mincore.c
inode: make init and permission helpers idmapped mount aware
2021-01-24 14:27:16 +01:00
mlock.c
mm/lru: introduce relock_page_lruvec()
2020-12-15 14:48:04 -08:00
mm_init.c
mm: fix fall-through warnings for Clang
2020-12-15 12:13:47 -08:00
mmap_lock.c
mm: mmap_lock: add tracepoints around lock acquisition
2020-12-15 12:13:41 -08:00
mmap.c
tlb: mmu_gather: Remove start/end arguments from tlb_gather_mmu()
2021-01-29 20:02:29 +01:00
mmu_gather.c
tlb: mmu_gather: Remove start/end arguments from tlb_gather_mmu()
2021-01-29 20:02:29 +01:00
mmu_notifier.c
mm: track mmu notifiers in fs_reclaim_acquire/release
2020-12-15 12:13:41 -08:00
mmzone.c
mm/lru: replace pgdat lru_lock with lruvec lock
2020-12-15 14:48:04 -08:00
mprotect.c
mm: Add 'mprotect' hook to struct vm_operations_struct
2020-11-17 14:36:14 +01:00
mremap.c
This pull request contains the following changes for UML:
2021-02-21 13:53:00 -08:00
msync.c
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2020-06-09 09:39:14 -07:00
nommu.c
mm/nommu: Fix return type of filemap_map_pages()
2021-01-28 14:10:31 +00:00
oom_kill.c
tlb: mmu_gather: Remove start/end arguments from tlb_gather_mmu()
2021-01-29 20:02:29 +01:00
page_alloc.c
mm: page_frag: Introduce page_frag_alloc_align()
2021-02-06 11:57:28 -08:00
page_counter.c
mm/page_counter: use page_counter_read in page_counter_set_max
2020-12-15 12:13:40 -08:00
page_ext.c
mm: fix some spelling mistakes in comments
2020-12-15 22:46:19 -08:00
page_idle.c
mm: page_idle_get_page() does not need lru_lock
2020-12-15 14:48:03 -08:00
page_io.c
mm: remove get_swap_bio
2021-01-27 09:51:49 -07:00
page_isolation.c
mm/page_isolation: do not isolate the max order page
2020-12-15 12:13:45 -08:00
page_owner.c
mm/page_owner: use helper function zone_end_pfn() to get end_pfn
2021-02-24 13:38:27 -08:00
page_poison.c
kasan, mm: reset tags when accessing metadata
2020-12-22 12:55:08 -08:00
page_reporting.c
mm: rename page_order() to buddy_order()
2020-10-16 11:11:19 -07:00
page_reporting.h
mm: introduce include/linux/pgtable.h
2020-06-09 09:39:13 -07:00
page_vma_mapped.c
mm/page_vma_mapped.c: add colon to fix kernel-doc markups error for check_pte
2020-12-15 12:13:41 -08:00
page-writeback.c
mm: make wait_on_page_writeback() wait for multiple pending writebacks
2021-01-05 11:33:00 -08:00
pagewalk.c
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
percpu-internal.h
mm: memcg/percpu: account percpu memory to memory cgroups
2020-08-12 10:57:55 -07:00
percpu-km.c
mm: memcg/percpu: account percpu memory to memory cgroups
2020-08-12 10:57:55 -07:00
percpu-stats.c
mm: memcg/percpu: account percpu memory to memory cgroups
2020-08-12 10:57:55 -07:00
percpu-vm.c
mm: memcg/percpu: account percpu memory to memory cgroups
2020-08-12 10:57:55 -07:00
percpu.c
percpu: fix clang modpost section mismatch
2021-02-14 18:15:15 +00:00
pgalloc-track.h
mm: move p?d_alloc_track to separate header file
2020-08-07 11:33:26 -07:00
pgtable-generic.c
mm: introduce include/linux/pgtable.h
2020-06-09 09:39:13 -07:00
process_vm_access.c
mm/process_vm_access.c: include compat.h
2021-01-12 18:12:54 -08:00
ptdump.c
kasan, arm64: expand CONFIG_KASAN checks
2020-12-22 12:55:08 -08:00
readahead.c
mm: use limited read-ahead to satisfy read
2020-10-17 13:49:08 -06:00
rmap.c
mm/lru: revise the comments of lru_lock
2020-12-15 14:48:04 -08:00
rodata_test.c
mm/rodata_test.c: fix missing function declaration
2020-08-21 09:52:53 -07:00
shmem.c
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
shuffle.c
mm: rename page_order() to buddy_order()
2020-10-16 11:11:19 -07:00
shuffle.h
mm/shuffle: remove dynamic reconfiguration
2020-08-07 11:33:29 -07:00
slab_common.c
mm, slab, slub: stop taking cpu hotplug lock
2021-02-24 13:38:27 -08:00
slab.c
mm/slab: minor coding style tweaks
2021-02-24 13:38:27 -08:00
slab.h
mm/sl?b.c: remove ctor argument from kmem_cache_flags
2021-02-24 13:38:27 -08:00
slob.c
mm, tracing: record slab name for kmem_cache_free()
2021-02-24 13:38:26 -08:00
slub.c
mm/slub: minor coding style tweaks
2021-02-24 13:38:27 -08:00
sparse-vmemmap.c
mm/sparse: only sub-section aligned range would be populated
2020-08-07 11:33:27 -07:00
sparse.c
mm/memory_hotplug: guard more declarations by CONFIG_MEMORY_HOTPLUG
2020-10-16 11:11:18 -07:00
swap_cgroup.c
mm: memcontrol: make swap tracking an integral part of memory control
2020-06-03 20:09:48 -07:00
swap_slots.c
mm/swap_slots.c: remove always zero and unused return value of enable_swap_slots_cache()
2020-10-13 18:38:30 -07:00
swap_state.c
mm: use sysfs_emit for struct kobject * uses
2020-12-15 12:13:47 -08:00
swap.c
mm/lru: introduce relock_page_lruvec()
2020-12-15 14:48:04 -08:00
swapfile.c
arm64 updates for 5.12
2021-02-21 13:08:42 -08:00
truncate.c
mm: fix kernel-doc markups
2020-12-15 12:13:47 -08:00
usercopy.c
mm/usercopy.c: delete duplicated word
2020-08-12 10:57:58 -07:00
userfaultfd.c
mm/vmscan: protect the workingset on anonymous LRU
2020-08-12 10:57:55 -07:00
util.c
mm: Make mem_dump_obj() handle vmalloc() memory
2021-01-22 15:24:04 -08:00
vmacache.c
kernel: better document the use_mm/unuse_mm API contract
2020-06-10 19:14:18 -07:00
vmalloc.c
Merge branch 'for-mingo-rcu' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
2021-02-12 12:56:55 +01:00
vmpressure.c
mm: vmpressure: use mem_cgroup_is_root API
2020-04-02 09:35:31 -07:00
vmscan.c
mm: don't put pinned pages into the swap cache
2021-01-17 12:08:04 -08:00
vmstat.c
arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL
2020-12-15 12:13:42 -08:00
workingset.c
Merge branch 'akpm' (patches from Andrew)
2020-12-15 14:55:10 -08:00
z3fold.c
z3fold: remove preempt disabled sections for RT
2020-12-15 12:13:45 -08:00
zbud.c
mm/zbud: remove redundant initialization
2020-10-13 18:38:34 -07:00
zpool.c
mm/zpool.c: delete duplicated word and fix grammar
2020-08-12 10:57:58 -07:00
zsmalloc.c
mm/zsmalloc.c: rework the list_add code in insert_zspage()
2020-12-15 12:13:46 -08:00
zswap.c
mm/zswap: move to use crypto_acomp API for hardware acceleration
2020-12-15 12:13:46 -08:00