[PATCHv1, RFC 09/33] page-flags: relax page flag poliry for PG_error and PG_writeback

From	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Newsgroups	linux.kernel
Subject	[PATCHv1, RFC 09/33] page-flags: relax page flag poliry for PG_error and PG_writeback
Date	2016-07-26 02:50 +0200
Message-ID	<rYYJj-3t1-1@gated-at.bofh.it> (permalink)
References	<rYYzD-3py-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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These flags are in use for filesystems with backing storage.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
---
 include/linux/page-flags.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 74e4dda91238..de90abb7c84e 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -253,7 +253,7 @@ static inline int TestClearPage##uname(struct page *page) { return 0; }
 	TESTSETFLAG_FALSE(uname) TESTCLEARFLAG_FALSE(uname)
 
 __PAGEFLAG(Locked, locked, PF_NO_TAIL)
-PAGEFLAG(Error, error, PF_NO_COMPOUND) TESTCLEARFLAG(Error, error, PF_NO_COMPOUND)
+PAGEFLAG(Error, error, PF_NO_TAIL) TESTCLEARFLAG(Error, error, PF_NO_TAIL)
 PAGEFLAG(Referenced, referenced, PF_HEAD)
 	TESTCLEARFLAG(Referenced, referenced, PF_HEAD)
 	__SETPAGEFLAG(Referenced, referenced, PF_HEAD)
@@ -293,8 +293,8 @@ PAGEFLAG(OwnerPriv1, owner_priv_1, PF_ANY)
  * Only test-and-set exist for PG_writeback.  The unconditional operators are
  * risky: they bypass page accounting.
  */
-TESTPAGEFLAG(Writeback, writeback, PF_NO_COMPOUND)
-	TESTSCFLAG(Writeback, writeback, PF_NO_COMPOUND)
+TESTPAGEFLAG(Writeback, writeback, PF_NO_TAIL)
+	TESTSCFLAG(Writeback, writeback, PF_NO_TAIL)
 PAGEFLAG(MappedToDisk, mappedtodisk, PF_NO_TAIL)
 
 /* PG_readahead is only used for reads; PG_reclaim is only for writes */
-- 
2.8.1

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[PATCHv1, RFC 09/33] page-flags: relax page flag poliry for PG_error and PG_writeback "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2016-07-26 02:50 +0200

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