922cea35f8
- makedumpfile-is_cache_page-helper.patch: Add is_cache_page() helper to check if a page belongs to the cache (bsc#1088354). - makedumpfile-check-PG_swapbacked.patch: Check PG_swapbacked for swap cache pages (bsc#1088354). OBS-URL: https://build.opensuse.org/request/show/602491 OBS-URL: https://build.opensuse.org/package/show/Kernel:kdump/makedumpfile?expand=0&rev=123
48 lines
1.4 KiB
Diff
48 lines
1.4 KiB
Diff
From: Petr Tesarik <ptesarik@suse.com>
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Date: Fri, 13 Apr 2018 15:58:45 +0200
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Subject: Add is_cache_page() helper to check if a page belongs to the cache
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References: bsc#1088354
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Upstream: posted 2018-04-13
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No functional change, but clarify the purpose of checking isLRU()
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and SwapCache(), and move the check to a single place.
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Signed-off-by: Petr Tesarik <ptesarik@suse.com>
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---
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makedumpfile.c | 10 ++++++++--
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1 file changed, 8 insertions(+), 2 deletions(-)
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--- a/makedumpfile.c
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+++ b/makedumpfile.c
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@@ -249,6 +249,12 @@ isHugetlb(int dtor)
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&& (SYMBOL(free_huge_page) == dtor));
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}
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+static int
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+is_cache_page(unsigned long flags)
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+{
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+ return isLRU(flags) || isSwapCache(flags);
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+}
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+
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static inline unsigned long
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calculate_len_buf_out(long page_size)
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{
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@@ -5850,7 +5856,7 @@ __exclude_unnecessary_pages(unsigned lon
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* Exclude the non-private cache page.
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*/
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else if ((info->dump_level & DL_EXCLUDE_CACHE)
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- && (isLRU(flags) || isSwapCache(flags))
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+ && is_cache_page(flags)
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&& !isPrivate(flags) && !isAnon(mapping)) {
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pfn_counter = &pfn_cache;
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}
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@@ -5858,7 +5864,7 @@ __exclude_unnecessary_pages(unsigned lon
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* Exclude the cache page whether private or non-private.
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*/
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else if ((info->dump_level & DL_EXCLUDE_CACHE_PRI)
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- && (isLRU(flags) || isSwapCache(flags))
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+ && is_cache_page(flags)
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&& !isAnon(mapping)) {
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if (isPrivate(flags))
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pfn_counter = &pfn_cache_private;
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