[PATCH] mm, oom: initiallize all new zap_details fields before use

From	Sasha Levin <sasha.levin@oracle.com>
Newsgroups	linux.kernel
Subject	[PATCH] mm, oom: initiallize all new zap_details fields before use
Date	2015-12-19 02:10 +0100
Message-ID	<qHec1-4Q0-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Commit "mm, oom: introduce oom reaper" forgot to initialize the two new fields
of struct zap_details in unmap_mapping_range(). This caused using stack garbage
on the call to unmap_mapping_range_tree().

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
---
 mm/memory.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/memory.c b/mm/memory.c
index 206c8cd..0e32993 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2431,6 +2431,7 @@ void unmap_mapping_range(struct address_space *mapping,
 	details.last_index = hba + hlen - 1;
 	if (details.last_index < details.first_index)
 		details.last_index = ULONG_MAX;
+	details.check_swap_entries = details.ignore_dirty = false;
 
 
 	/* DAX uses i_mmap_lock to serialise file truncate vs page fault */
-- 
1.7.10.4

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[PATCH] mm, oom: initiallize all new zap_details fields before use Sasha Levin <sasha.levin@oracle.com> - 2015-12-19 02:10 +0100
  Re: [PATCH] mm, oom: initiallize all new zap_details fields before  use "Kirill A. Shutemov" <kirill@shutemov.name> - 2015-12-19 21:00 +0100
    Re: [PATCH] mm, oom: initiallize all new zap_details fields before  use Sasha Levin <sasha.levin@oracle.com> - 2015-12-19 23:10 +0100
      Re: [PATCH] mm, oom: initiallize all new zap_details fields before  use Andrew Morton <akpm@linux-foundation.org> - 2015-12-21 23:30 +0100
        Re: [PATCH] mm, oom: initiallize all new zap_details fields before  use Sasha Levin <sasha.levin@oracle.com> - 2015-12-22 02:00 +0100
  Re: [PATCH] mm, oom: initiallize all new zap_details fields before  use Michal Hocko <mhocko@kernel.org> - 2015-12-21 09:40 +0100

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