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erofs: fix setting up pcluster for temporary pages

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pcluster should be only set up for all managed pages instead of
temporary pages. Since it currently uses page->mapping to identify,
the impact is minor for now.

[ Update: Vladimir reported the kernel log becomes polluted
  because PAGE_FLAGS_CHECK_AT_FREE flag(s) set if the page
  allocation debug option is enabled. ]

Link: https://lore.kernel.org/r/20201022145724.27284-1-hsiangkao@aol.com
Fixes: 5ddcee1f3a1c ("erofs: get rid of __stagingpage_alloc helper")
Cc: <stable@vger.kernel.org> # 5.5+
Tested-by: Vladimir Zapolskiy <vladimir@tuxera.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Change-Id: I86d19e0c73a7cd8bb50a384fe848502ff423bddf
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
This commit is contained in:
Gao Xiang 2020-10-22 22:57:21 +08:00 • committed by Michael Bestas
commit d0d2e8ba35
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1 changed files with 5 additions and 2 deletions
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7
fs/erofs/zdata.c
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@ -1078,8 +1078,11 @@ out_allocpage:
cond_resched();
goto repeat;
}
set_page_private(page, (unsigned long)pcl);
SetPagePrivate(page);
if (tocache) {
set_page_private(page, (unsigned long)pcl);
SetPagePrivate(page);
}
out: /* the only exit (for tracing and debugging) */
return page;
}