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authorMiaohe Lin <linmiaohe@huawei.com>2022-03-22 14:44:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-22 15:57:07 -0700
commit577553f4897181dc8960351511c921018892e818 (patch)
tree4221eeb75739f667e5a055b2498e6be88ad960e5
parente53ac7374e64dede04d745ff0e70ff5048378d1f (diff)
mm/memory-failure.c: minor clean up for memory_failure_dev_pagemap
Patch series "A few cleanup and fixup patches for memory failure", v3. This series contains a few patches to simplify the code logic, remove unneeded variable and remove obsolete comment. Also we fix race changing page more robustly in memory_failure. More details can be found in the respective changelogs. This patch (of 8): The flags always has MF_ACTION_REQUIRED and MF_MUST_KILL set. So we do not need to check these flags again. Link: https://lkml.kernel.org/r/20220218090118.1105-1-linmiaohe@huawei.com Link: https://lkml.kernel.org/r/20220218090118.1105-2-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/memory-failure.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 2e2f740c63dc..1e1cb1191ab7 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1640,7 +1640,7 @@ static int memory_failure_dev_pagemap(unsigned long pfn, int flags,
* SIGBUS (i.e. MF_MUST_KILL)
*/
flags |= MF_ACTION_REQUIRED | MF_MUST_KILL;
- collect_procs(page, &tokill, flags & MF_ACTION_REQUIRED);
+ collect_procs(page, &tokill, true);
list_for_each_entry(tk, &tokill, nd)
if (tk->size_shift)
@@ -1655,7 +1655,7 @@ static int memory_failure_dev_pagemap(unsigned long pfn, int flags,
start = (page->index << PAGE_SHIFT) & ~(size - 1);
unmap_mapping_range(page->mapping, start, size, 0);
}
- kill_procs(&tokill, flags & MF_MUST_KILL, false, pfn, flags);
+ kill_procs(&tokill, true, false, pfn, flags);
rc = 0;
unlock:
dax_unlock_page(page, cookie);