Manjong Lee 505039dd0f mm: bdi: initialize bdi_min_ratio when bdi is unregistered ...

commit 3c376dfafb upstream.

Initialize min_ratio if it is set during bdi unregistration.  This can
prevent problems that may occur a when bdi is removed without resetting
min_ratio.

For example.
1) insert external sdcard
2) set external sdcard's min_ratio 70
3) remove external sdcard without setting min_ratio 0
4) insert external sdcard
5) set external sdcard's min_ratio 70 << error occur(can't set)

Because when an sdcard is removed, the present bdi_min_ratio value will
remain.  Currently, the only way to reset bdi_min_ratio is to reboot.

[akpm@linux-foundation.org: tweak comment and coding style]

Link: https://lkml.kernel.org/r/20211021161942.5983-1-mj0123.lee@samsung.com
Signed-off-by: Manjong Lee <mj0123.lee@samsung.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Changheun Lee <nanich.lee@samsung.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <seunghwan.hyun@samsung.com>
Cc: <sookwan7.kim@samsung.com>
Cc: <yt0928.kim@samsung.com>
Cc: <junho89.kim@samsung.com>
Cc: <jisoo2146.oh@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-12-14 10:18:05 +01:00

..

kasan

kasan: fix incorrect arguments passing in kasan_add_zero_shadow

2021-01-27 11:05:43 +01:00

backing-dev.c

mm: bdi: initialize bdi_min_ratio when bdi is unregistered

2021-12-14 10:18:05 +01:00

balloon_compaction.c

…

bootmem.c

…

cleancache.c

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cma_debug.c

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cma.c

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cma.h

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compaction.c

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debug_page_ref.c

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debug.c

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dmapool.c

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early_ioremap.c

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fadvise.c

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failslab.c

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filemap.c

mm/filemap.c: clear page error before actual read

2020-10-01 13:14:41 +02:00

frame_vector.c

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frontswap.c

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gup_benchmark.c

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gup.c

gup: document and work around "COW can break either way" issue

2021-04-28 13:16:51 +02:00

highmem.c

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hmm.c

mm/memory_hotplug: shrink zones when offlining memory

2020-01-29 16:43:27 +01:00

huge_memory.c

mm/huge_memory.c: don't discard hugepage if other processes are mapping it

2021-07-20 16:15:58 +02:00

hugetlb_cgroup.c

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hugetlb.c

hugetlbfs: flush TLBs correctly after huge_pmd_unshare

2021-12-01 09:27:43 +01:00

hwpoison-inject.c

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init-mm.c

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internal.h

mm/thp: fix vma_address() if virtual address below file offset

2021-07-11 12:49:28 +02:00

interval_tree.c

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Kconfig

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Kconfig.debug

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khugepaged.c

khugepaged: fix wrong result value for trace_mm_collapse_huge_page_isolate()

2021-05-22 10:59:44 +02:00

kmemleak-test.c

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kmemleak.c

mm/kmemleak.c: use address-of operator on section symbols

2020-10-01 13:14:41 +02:00

ksm.c

ksm: fix potential missing rmap_item for stable_node

2021-05-22 10:59:44 +02:00

list_lru.c

mm: list_lru: set shrinker map bit when child nr_items is not zero

2020-12-11 13:25:02 +01:00

maccess.c

uaccess: Add non-pagefault user-space write function

2020-09-09 19:04:29 +02:00

madvise.c

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Makefile

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memblock.c

memblock: do not start bottom-up allocations with kernel_end

2021-02-10 09:21:06 +01:00

memcontrol.c

mm/memcg: fix device private memcg accounting

2020-10-29 09:55:15 +01:00

memfd.c

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memory_hotplug.c

mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range()

2021-09-22 11:48:12 +02:00

memory-failure.c

mm/memory-failure: make sure wait for page writeback in memory_failure

2021-06-30 08:48:14 -04:00

memory.c

hugetlbfs: flush TLBs correctly after huge_pmd_unshare

2021-12-01 09:27:43 +01:00

mempolicy.c

mm: mempolicy: fix potential pte_unmap_unlock pte error

2020-11-10 12:35:57 +01:00

mempool.c

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memtest.c

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migrate.c

mm: move_pages: report the number of non-attempted pages

2020-02-11 04:33:56 -08:00

mincore.c

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mlock.c

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mm_init.c

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mmap.c

mm/mmap.c: initialize align_offset explicitly for vm_unmapped_area

2020-10-01 13:14:42 +02:00

mmu_context.c

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mmu_notifier.c

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mmzone.c

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mprotect.c

mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa

2020-03-11 14:15:00 +01:00

mremap.c

mm: Fix mremap not considering huge pmd devmap

2020-06-07 13:17:53 +02:00

msync.c

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nobootmem.c

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nommu.c

x86/mm: split vmalloc_sync_all()

2020-03-25 08:06:13 +01:00

oom_kill.c

mm, oom: do not trigger out_of_memory from the #PF

2021-11-26 11:36:17 +01:00

page_alloc.c

mm/page_alloc: speed up the iteration of max_order

2021-09-22 11:47:48 +02:00

page_counter.c

mm/page_counter.c: fix protection usage propagation

2020-08-21 11:05:33 +02:00

page_ext.c

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page_idle.c

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page_io.c

swap: fix swapfile read/write offset

2021-03-07 12:19:02 +01:00

page_isolation.c

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page_owner.c

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page_poison.c

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page_vma_mapped.c

mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk()

2021-07-11 12:49:30 +02:00

page-writeback.c

mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio()

2020-01-23 08:21:31 +01:00

pagewalk.c

mm: pagewalk: fix termination condition in walk_pte_range()

2020-10-01 13:14:32 +02:00

percpu-internal.h

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percpu-km.c

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percpu-stats.c

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percpu-vm.c

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percpu.c

percpu: fix first chunk size calculation for populated bitmap

2020-09-23 12:11:01 +02:00

pgtable-generic.c

mm/thp: fix __split_huge_pmd_locked() on shmem migration entry

2021-07-11 12:49:27 +02:00

process_vm_access.c

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quicklist.c

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readahead.c

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rmap.c

mm/thp: fix page_address_in_vma() on file THP tails

2021-07-11 12:49:28 +02:00

rodata_test.c

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shmem.c

userfaultfd: release page in error path to avoid BUG_ON

2021-05-22 10:59:45 +02:00

slab_common.c

mm: slab: fix kmem_cache_create failed when sysfs node not destroyed

2021-07-28 11:13:44 +02:00

slab.c

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slab.h

mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag

2021-11-26 11:36:23 +01:00

slob.c

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slub.c

mm, slub: fix mismatch between reconstructed freelist depth and cnt

2021-10-27 09:53:14 +02:00

sparse-vmemmap.c

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sparse.c

mm/sparse: add the missing sparse_buffer_fini() in error branch

2021-05-22 10:59:38 +02:00

swap_cgroup.c

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swap_slots.c

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swap_state.c

mm/swap_state: fix a data race in swapin_nr_pages

2020-10-01 13:14:47 +02:00

swap.c

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swapfile.c

swap: fix swapfile read/write offset

2021-03-07 12:19:02 +01:00

truncate.c

mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page()

2021-07-11 12:49:28 +02:00

usercopy.c

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userfaultfd.c

hugetlbfs: hugetlb_fault_mutex_hash() cleanup

2021-06-03 08:38:12 +02:00

util.c

mm: add kvfree_sensitive() for freeing sensitive data objects

2020-06-22 09:05:01 +02:00

vmacache.c

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vmalloc.c

mm/vmalloc.c: don't dereference possible NULL pointer in __vunmap()

2020-06-03 08:19:49 +02:00

vmpressure.c

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vmscan.c

mm/vmscan.c: fix data races using kswapd_classzone_idx

2020-10-01 13:14:41 +02:00

vmstat.c

mm, vmstat: drop zone->lock in /proc/pagetypeinfo

2021-06-03 08:38:02 +02:00

workingset.c

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z3fold.c

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zbud.c

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zpool.c

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zsmalloc.c

mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration()

2021-11-26 11:36:16 +01:00

zswap.c

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