linux/mm
Peter Zijlstra 3b130445a5 mm, rt: kmap_atomic scheduling
In fact, with migrate_disable() existing one could play games with
kmap_atomic. You could save/restore the kmap_atomic slots on context
switch (if there are any in use of course), this should be esp easy now
that we have a kmap_atomic stack.

Something like the below.. it wants replacing all the preempt_disable()
stuff with pagefault_disable() && migrate_disable() of course, but then
you can flip kmaps around like below.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
[dvhart@linux.intel.com: build fix]
Link: http://lkml.kernel.org/r/1311842631.5890.208.camel@twins

[tglx@linutronix.de: Get rid of the per cpu variable and store the idx
		     and the pte content right away in the task struct.
		     Shortens the context switch code. ]
2023-03-25 04:21:32 +03:00
..
kasan kasan: fix incorrect arguments passing in kasan_add_zero_shadow 2021-01-27 11:47:53 +01:00
Kconfig kconfig: Disable config options which are not RT compatible 2023-03-25 04:21:20 +03:00
Kconfig.debug
Makefile
backing-dev.c mm: bdi: initialize bdi_min_ratio when bdi is unregistered 2021-12-14 14:49:00 +01:00
balloon_compaction.c
cleancache.c
cma.c cma: don't quit at first error when activating reserved areas 2020-09-03 11:26:51 +02:00
cma.h
cma_debug.c
compaction.c mm/swap: Convert to percpu locked 2023-03-25 04:21:22 +03:00
debug.c mm/debug.c: always print flags in dump_page() 2020-03-05 16:43:51 +01:00
debug_page_ref.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c mm/filemap: fix storing to a THP shadow entry 2021-06-10 13:37:15 +02:00
frame_vector.c
frontswap.c
gup.c mm/gup: fix gup_fast with dynamic page table folding 2020-10-01 13:18:24 +02:00
gup_benchmark.c mm/gup: fix memory leak in __gup_benchmark_ioctl 2020-01-09 10:20:00 +01:00
highmem.c mm, rt: kmap_atomic scheduling 2023-03-25 04:21:32 +03:00
hmm.c
huge_memory.c mm/huge_memory.c: don't discard hugepage if other processes are mapping it 2021-07-14 16:53:47 +02:00
hugetlb.c hugetlbfs: flush TLBs correctly after huge_pmd_unshare 2021-11-26 10:47:23 +01:00
hugetlb_cgroup.c
hwpoison-inject.c
init-mm.c
internal.h mm/thp: fix vma_address() if virtual address below file offset 2021-06-30 08:47:52 -04:00
interval_tree.c
khugepaged.c khugepaged: fix wrong result value for trace_mm_collapse_huge_page_isolate() 2021-05-19 10:08:27 +02:00
kmemleak-test.c
kmemleak.c kmemleak: Turn kmemleak_lock and object->lock to raw_spinlock_t 2023-03-25 04:21:18 +03:00
ksm.c ksm: fix potential missing rmap_item for stable_node 2021-05-19 10:08:27 +02:00
list_lru.c mm: list_lru: set shrinker map bit when child nr_items is not zero 2020-12-11 13:23:31 +01:00
maccess.c uaccess: Add non-pagefault user-space write function 2020-01-17 19:48:40 +01:00
madvise.c mm: validate pmd after splitting 2020-10-01 13:18:21 +02:00
memblock.c memblock: use kfree() to release kmalloced memblock regions 2022-03-02 11:41:18 +01:00
memcontrol.c mm/memcontrol: Move misplaced local_unlock_irqrestore() 2023-03-25 04:21:23 +03:00
memfd.c memfd: fix F_SEAL_WRITE after shmem huge page allocated 2022-03-08 19:07:49 +01:00
memory-failure.c mm/memory-failure: make sure wait for page writeback in memory_failure 2021-06-23 14:41:23 +02:00
memory.c Use CONFIG_PREEMPTION 2023-03-25 04:21:18 +03:00
memory_hotplug.c mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range() 2021-09-22 12:26:43 +02:00
mempolicy.c mm/mempolicy: fix mpol_new leak in shared_policy_replace 2022-04-15 14:18:39 +02:00
mempool.c
memremap.c mm/memory_hotplug: shrink zones when offlining memory 2020-01-09 10:19:56 +01:00
memtest.c
migrate.c mm, thp: use head page in __migration_entry_wait() 2021-06-30 08:47:52 -04:00
mincore.c
mlock.c
mm_init.c
mmap.c mm, hugetlb: allow for "high" userspace addresses 2022-05-09 09:03:28 +02:00
mmu_context.c mm: fix kthread_use_mm() vs TLB invalidate 2020-09-03 11:26:51 +02:00
mmu_gather.c mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush 2020-02-11 04:35:42 -08:00
mmu_notifier.c
mmzone.c
mprotect.c mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa 2020-03-12 13:00:19 +01:00
mremap.c mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) 2022-04-15 14:18:39 +02:00
msync.c
nommu.c x86/mm: split vmalloc_sync_all() 2020-03-25 08:25:58 +01:00
oom_kill.c oom_kill.c: futex: delay the OOM reaper to allow time for proper futex cleanup 2022-04-27 13:50:48 +02:00
page-writeback.c mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio() 2020-01-23 08:22:41 +01:00
page_alloc.c mm/page_alloc: Use migrate_disable() in drain_local_pages_wq() 2023-03-25 04:21:22 +03:00
page_counter.c mm/page_counter.c: fix protection usage propagation 2020-08-21 13:05:27 +02:00
page_ext.c
page_idle.c
page_io.c mm: fix unexpected zeroed page mapping with zram swap 2022-05-12 12:23:48 +02:00
page_isolation.c mm/memory_hotplug: drain per-cpu pages again during memory offline 2020-09-23 12:40:47 +02:00
page_owner.c mm/page_owner: change split_page_owner to take a count 2020-10-29 09:57:52 +01:00
page_poison.c
page_vma_mapped.c mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk() 2021-06-30 08:47:55 -04:00
pagewalk.c mm: pagewalk: fix termination condition in walk_pte_range() 2020-10-01 13:17:30 +02:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c percpu: fix first chunk size calculation for populated bitmap 2020-09-23 12:40:45 +02:00
pgtable-generic.c mm/thp: fix __split_huge_pmd_locked() on shmem migration entry 2021-06-30 08:47:52 -04:00
process_vm_access.c
readahead.c
rmap.c mm: fix race between MADV_FREE reclaim and blkdev direct IO read 2022-04-15 14:18:36 +02:00
rodata_test.c
shmem.c shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode 2022-01-27 09:19:29 +01:00
shuffle.c mm/shuffle: don't move pages between zones and don't read garbage memmaps 2020-09-03 11:26:51 +02:00
shuffle.h
slab.c mm/SLxB: change list_lock to raw_spinlock_t 2023-03-25 04:21:22 +03:00
slab.h mm/SLxB: change list_lock to raw_spinlock_t 2023-03-25 04:21:22 +03:00
slab_common.c mm: slab: fix kmem_cache_create failed when sysfs node not destroyed 2021-07-25 14:35:14 +02:00
slob.c
slub.c slub: Enable irqs for __GFP_WAIT 2023-03-25 04:21:22 +03:00
sparse-vmemmap.c
sparse.c mm/sparse: add the missing sparse_buffer_fini() in error branch 2021-05-14 09:44:32 +02:00
swap.c mm: perform lru_add_drain_all() remotely 2023-03-25 04:21:22 +03:00
swap_cgroup.c
swap_slots.c
swap_state.c mm/swap_state: fix a data race in swapin_nr_pages 2020-10-01 13:18:08 +02:00
swapfile.c swap: fix swapfile read/write offset 2021-03-07 12:20:49 +01:00
truncate.c mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page() 2021-06-30 08:47:53 -04:00
usercopy.c mm/usercopy: return 1 from hardened_usercopy __setup() handler 2022-04-15 14:18:30 +02:00
userfaultfd.c hugetlbfs: hugetlb_fault_mutex_hash() cleanup 2021-03-30 14:35:19 +02:00
util.c mm: add kvfree_sensitive() for freeing sensitive data objects 2020-06-17 16:40:23 +02:00
vmacache.c
vmalloc.c mm/vmalloc: Another preempt disable region which sucks 2023-03-25 04:21:28 +03:00
vmpressure.c
vmscan.c mm,vmscan: fix divide by zero in get_scan_count 2021-09-22 12:26:37 +02:00
vmstat.c mm/vmstat: Protect per cpu variables with preempt disable on RT 2023-03-25 04:21:22 +03:00
workingset.c mm: workingset: replace IRQ-off check with a lockdep assert. 2023-03-25 04:21:19 +03:00
z3fold.c mm/z3fold: fix potential memory leak in z3fold_destroy_pool() 2021-07-14 16:53:47 +02:00
zbud.c
zpool.c
zsmalloc.c mm/zsmalloc: copy with get_cpu_var() and locking 2023-03-25 04:21:23 +03:00
zswap.c mm/zswap: Do not disable preemption in zswap_frontswap_store() 2023-03-25 04:21:23 +03:00