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mm/hwpoison: remove unneeded variable unmap_success

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Patch series "Cleanups and fixup for hwpoison"

This series contains cleanups to remove unneeded variable, fix some
obsolete comments and so on.  Also we fix potential pte_unmap_unlock on
wrong pte.  More details can be found in the respective changelogs.

This patch (of 4):

unmap_success is used to indicate whether page is successfully unmapped
but it's irrelated with ZONE_DEVICE page and unmap_success is always true
here.  Remove this unneeded one.

Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Miaohe Lin <[email protected]>
Acked-by: Naoya Horiguchi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Miaohe Lin authored and Linus Torvalds committed 2021-09-03 09:58:15 -07:00
1 parent 1d09510bcc
commit ae611d072c
1 file changed
+1 -2
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mm/memory-failure.c
+1 -2
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@@ -1518,7 +1518,6 @@ static int memory_failure_dev_pagemap(unsigned long pfn, int flags,
struct dev_pagemap *pgmap)
{
struct page *page = pfn_to_page(pfn);
const bool unmap_success = true;
unsigned long size = 0;
struct to_kill *tk;
LIST_HEAD(tokill);
@@ -1590,7 +1589,7 @@ 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, !unmap_success, pfn, flags);
kill_procs(&tokill, flags & MF_MUST_KILL, false, pfn, flags);
rc = 0;
unlock:
dax_unlock_page(page, cookie);