Linus Torvalds 168fe32a07 Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Pull poll annotations from Al Viro: "This introduces a __bitwise type for POLL### bitmap, and propagates the annotations through the tree. Most of that stuff is as simple as 'make ->poll() instances return __poll_t and do the same to local variables used to hold the future return value'. Some of the obvious brainos found in process are fixed (e.g. POLLIN misspelled as POLL_IN). At that point the amount of sparse warnings is low and most of them are for genuine bugs - e.g. ->poll() instance deciding to return -EINVAL instead of a bitmap. I hadn't touched those in this series - it's large enough as it is. Another problem it has caught was eventpoll() ABI mess; select.c and eventpoll.c assumed that corresponding POLL### and EPOLL### were equal. That's true for some, but not all of them - EPOLL### are arch-independent, but POLL### are not. The last commit in this series separates userland POLL### values from the (now arch-independent) kernel-side ones, converting between them in the few places where they are copied to/from userland. AFAICS, this is the least disruptive fix preserving poll(2) ABI and making epoll() work on all architectures. As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and it will trigger only on what would've triggered EPOLLWRBAND on other architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered at all on sparc. With this patch they should work consistently on all architectures" * 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits) make kernel-side POLL... arch-independent eventpoll: no need to mask the result of epi_item_poll() again eventpoll: constify struct epoll_event pointers debugging printk in sg_poll() uses %x to print POLL... bitmap annotate poll(2) guts 9p: untangle ->poll() mess ->si_band gets POLL... bitmap stored into a user-visible long field ring_buffer_poll_wait() return value used as return value of ->poll() the rest of drivers/*: annotate ->poll() instances media: annotate ->poll() instances fs: annotate ->poll() instances ipc, kernel, mm: annotate ->poll() instances net: annotate ->poll() instances apparmor: annotate ->poll() instances tomoyo: annotate ->poll() instances sound: annotate ->poll() instances acpi: annotate ->poll() instances crypto: annotate ->poll() instances block: annotate ->poll() instances x86: annotate ->poll() instances ...		2018-01-30 17:58:07 -08:00
..
kasan	kasan: use %px to print addresses instead of %p	2017-11-29 12:13:16 +11:00
backing-dev.c	Revert "bdi: add error handle for bdi_debug_register"	2017-12-21 10:01:30 -07:00
balloon_compaction.c	virtio_balloon: fix deadlock on OOM	2017-11-14 23:57:38 +02:00
bootmem.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
cleancache.c	fs: switch ->s_uuid to uuid_t	2017-06-05 16:59:12 +02:00
cma_debug.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
cma.c	mm/cma.c: change pr_info to pr_err for cma_alloc fail log	2017-11-15 18:21:03 -08:00
cma.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
compaction.c	mm, compaction: remove unneeded pageblock_skip_persistent() checks	2017-11-17 16:10:00 -08:00
debug_page_ref.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
debug.c	mm/debug.c: provide useful debugging information for VM_BUG	2018-01-04 16:45:09 -08:00
dmapool.c	lib/vsprintf.c: remove %Z support	2017-02-27 18:43:47 -08:00
early_ioremap.c	mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep	2017-12-11 14:54:44 +01:00
fadvise.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
failslab.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
filemap.c	AFS development	2017-11-16 11:41:22 -08:00
frame_vector.c	mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'	2017-12-14 16:00:48 -08:00
frontswap.c	mm, frontswap: convert frontswap_enabled to static key	2016-07-26 16:19:19 -07:00
gup_benchmark.c	mm: add infrastructure for get_user_pages_fast() benchmarking	2017-11-17 16:10:04 -08:00
gup.c	Revert "mm: replace p??_write with pte_access_permitted in fault + gup paths"	2017-12-15 18:53:22 -08:00
highmem.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hmm.c	Revert "mm: replace p??_write with pte_access_permitted in fault + gup paths"	2017-12-15 18:53:22 -08:00
huge_memory.c	Revert "mm: replace p??_write with pte_access_permitted in fault + gup paths"	2017-12-15 18:53:22 -08:00
hugetlb_cgroup.c
hugetlb.c	mm/hugetlb: fix NULL-pointer dereference on 5-level paging machine	2017-11-29 18:40:43 -08:00
hwpoison-inject.c	mm/memory_failure: Remove unused trapno from memory_failure	2018-01-23 12:17:42 -06:00
init-mm.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
internal.h	Revert "mm, thp: Do not make pmd/pud dirty without a reason"	2017-11-29 09:01:01 -08:00
interval_tree.c	lib/interval_tree: fast overlap detection	2017-09-08 18:26:49 -07:00
Kconfig	mm: add infrastructure for get_user_pages_fast() benchmarking	2017-11-17 16:10:04 -08:00
Kconfig.debug	kmemcheck: rip it out	2017-11-15 18:21:05 -08:00
khugepaged.c	Revert "mm, thp: Do not make pmd/pud dirty without a reason"	2017-11-29 09:01:01 -08:00
kmemleak-test.c
kmemleak.c	kmemleak: allow to coexist with fault injection	2018-01-13 10:42:48 -08:00
ksm.c	mm/ksm: Remove now-redundant smp_read_barrier_depends()	2017-12-04 10:52:56 -08:00
list_lru.c	mm/list_lru.c: mark expected switch fall-through	2017-11-15 18:21:07 -08:00
maccess.c
madvise.c	mm/memory_failure: Remove unused trapno from memory_failure	2018-01-23 12:17:42 -06:00
Makefile	mm: add infrastructure for get_user_pages_fast() benchmarking	2017-11-17 16:10:04 -08:00
memblock.c	mm: define memblock_virt_alloc_try_nid_raw	2017-11-15 18:21:05 -08:00
memcontrol.c	Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-01-30 17:58:07 -08:00
memory_hotplug.c	memory hotplug: fix comments when adding section	2017-11-15 18:21:07 -08:00
memory-failure.c	signal/memory-failure: Use force_sig_mceerr and send_sig_mceerr	2018-01-23 12:17:48 -06:00
memory.c	mm/memory.c: release locked page in do_swap_page()	2018-01-19 10:09:40 -08:00
mempolicy.c	mm, sysctl: make NUMA stats configurable	2017-11-15 18:21:07 -08:00
mempool.c	mm/mempool.c: use kmalloc_array_node()	2017-11-15 18:21:02 -08:00
memtest.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
migrate.c	Revert "mm, thp: Do not make pmd/pud dirty without a reason"	2017-11-29 09:01:01 -08:00
mincore.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mlock.c	mm: Eliminate cond_resched_rcu_qs() in favor of cond_resched()	2017-11-28 16:00:28 -08:00
mm_init.c
mmap.c	mm, oom_reaper: fix memory corruption	2017-12-14 16:00:49 -08:00
mmu_context.c	sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
mmu_notifier.c	mm/mmu_notifier: avoid call to invalidate_range() in range_end()	2017-11-15 18:21:03 -08:00
mmzone.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mprotect.c	mm/mprotect: add a cond_resched() inside change_pmd_range()	2018-01-04 16:45:09 -08:00
mremap.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
msync.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
nobootmem.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
nommu.c	Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-09-14 18:13:32 -07:00
oom_kill.c	mm, oom_reaper: fix memory corruption	2017-12-14 16:00:49 -08:00
page_alloc.c	mm: check pfn_valid first in zero_resv_unavail	2018-01-04 16:45:09 -08:00
page_counter.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
page_ext.c	mm/page_ext.c: check if page_ext is not prepared	2017-11-15 18:21:07 -08:00
page_idle.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
page_io.c	block: convert to bio_first_bvec_all & bio_first_page_all	2018-01-06 09:18:00 -07:00
page_isolation.c	mm: distinguish CMA and MOVABLE isolation in has_unmovable_pages()	2017-11-15 18:21:02 -08:00
page_owner.c	mm/page_owner.c: remove drain_all_pages from init_early_allocated_pages	2018-01-19 10:09:40 -08:00
page_poison.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
page_vma_mapped.c	mm, page_vma_mapped: Introduce pfn_in_hpage()	2018-01-22 12:15:57 -08:00
page-writeback.c	Revert "mm/page-writeback.c: print a warning if the vm dirtiness settings are illogical"	2017-11-29 18:40:43 -08:00
pagewalk.c	mm/pagewalk.c: report holes in hugetlb ranges	2017-11-15 13:12:08 -08:00
percpu-internal.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
percpu-km.c	percpu: replace area map allocator with bitmap	2017-07-26 17:41:05 -04:00
percpu-stats.c	percpu: fix starting offset for chunk statistics traversal	2017-09-27 14:45:57 -07:00
percpu-vm.c	mm: remove __GFP_COLD	2017-11-15 18:21:06 -08:00
percpu.c	percpu: hack to let the CRIS architecture to boot until they clean up	2017-11-27 12:53:12 -08:00
pgtable-generic.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
process_vm_access.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
quicklist.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
readahead.c	mm: don't cap request size based on read-ahead setting	2016-12-12 18:55:08 -08:00
rmap.c	mm: remove cold parameter from free_hot_cold_page*	2017-11-15 18:21:06 -08:00
rodata_test.c	mm: fix RODATA_TEST failure "rodata_test: test data was not read only"	2017-10-03 17:54:24 -07:00
shmem.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
slab_common.c	kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK	2017-11-15 18:21:04 -08:00
slab.c	mm/slab.c: do not hash pointers when debugging slab	2017-12-14 16:00:48 -08:00
slab.h	kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK	2017-11-15 18:21:04 -08:00
slob.c	slab, slub, slob: add slab_flags_t	2017-11-15 18:21:01 -08:00
slub.c	kmemcheck: rip it out	2017-11-15 18:21:05 -08:00
sparse-vmemmap.c	mm, sparse: do not swamp log with huge vmemmap allocation failures	2017-11-15 18:21:07 -08:00
sparse.c	mm/sparse.c: wrong allocation for mem_section	2018-01-04 16:45:09 -08:00
swap_cgroup.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
swap_slots.c	mm/swap_slots.c: fix race conditions in swap_slots cache init	2017-11-15 18:21:03 -08:00
swap_state.c	mm: remove cold parameter for release_pages	2017-11-15 18:21:06 -08:00
swap.c	mm, pagevec: rename pagevec drained field	2017-11-15 18:21:06 -08:00
swapfile.c	ipc, kernel, mm: annotate ->poll() instances	2017-11-27 16:20:05 -05:00
truncate.c	mm, pagevec: remove cold parameter for pagevecs	2017-11-15 18:21:06 -08:00
usercopy.c	mm/usercopy: Drop extra is_vmalloc_or_module() check	2017-04-05 12:30:18 -07:00
userfaultfd.c	userfaultfd: shmem: wire up shmem_mfill_zeropage_pte	2017-09-06 17:27:28 -07:00
util.c	mm: rename global_page_state to global_zone_page_state	2017-09-06 17:27:29 -07:00
vmacache.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
vmalloc.c	Revert "vmalloc: back off when the current task is killed"	2017-10-13 16:18:32 -07:00
vmpressure.c	mm, vmpressure: pass-through notification support	2017-07-10 16:32:31 -07:00
vmscan.c	mm,vmscan: Make unregister_shrinker() no-op if register_shrinker() failed.	2017-12-18 15:03:09 -05:00
vmstat.c	mm, sysctl: make NUMA stats configurable	2017-11-15 18:21:07 -08:00
workingset.c	mm, truncate: do not check mapping for every page being truncated	2017-11-15 18:21:06 -08:00
z3fold.c	mm/z3fold.c: use kref to prevent page free/compact race	2017-11-17 16:10:00 -08:00
zbud.c
zpool.c
zsmalloc.c	mm/zsmalloc.c: include fs.h	2018-01-04 16:45:09 -08:00
zswap.c	mm/zswap.c: delete an error message for a failed memory allocation in zswap_dstmem_prepare()	2017-07-06 16:24:35 -07:00