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ANDROID: fix isolate_migratepages_range return value

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When [1] was cherry-picked from 5.10 into 5.15 kernel, it modified
the variable used to store isolate_migratepages_block() return value
like it was done in 5.10. However in 5.15 the variable used to store
the return value is different. As a result, failure to isolate a block
is not reported back to the caller. Fix by restoring the original
code and using the right variable to store the return value.

[1] ANDROID: mm: do not allow file-backed pages from CMA

Bug: 326556976
Change-Id: I06900eb43de356584ff63acfe6e994f11610b494
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
This commit is contained in:
Suren Baghdasaryan
2024-03-14 15:53:20 -07:00
parent 483395b445
commit 3fd32dc171
1 changed files with 1 additions and 1 deletions
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2
mm/compaction.c
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@@ -1269,7 +1269,7 @@ isolate_migratepages_range(struct compact_control *cc, unsigned long start_pfn,
block_end_pfn, cc->zone))
continue;
pfn = isolate_migratepages_block(&cc_ext, pfn, block_end_pfn,
ret = isolate_migratepages_block(&cc_ext, pfn, block_end_pfn,
ISOLATE_UNEVICTABLE);
if (ret)