Re: [PATCHv6 03/37] page-flags: relax page flag policy for few flags
From: Matthew Wilcox <willy@infradead.org>
Date: 2017-02-09 04:01:13
Also in:
linux-block, linux-fsdevel, linux-mm, lkml
On Thu, Jan 26, 2017 at 02:57:45PM +0300, Kirill A. Shutemov wrote:
These flags are in use for filesystems with backing storage: PG_error, PG_writeback and PG_readahead.
Oh ;-) Then I amend my comment on patch 1 to be "patch 3 needs to go ahead of patch 1" ;-)
quoted hunk ↗ jump to hunk
Signed-off-by: Kirill A. Shutemov <redacted> --- include/linux/page-flags.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 6b5818d6de32..b85b73cfb1b3 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h@@ -263,7 +263,7 @@ static inline int TestClearPage##uname(struct page *page) { return 0; } __PAGEFLAG(Locked, locked, PF_NO_TAIL) PAGEFLAG(Waiters, waiters, PF_ONLY_HEAD) __CLEARPAGEFLAG(Waiters, waiters, PF_ONLY_HEAD) -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)@@ -303,15 +303,15 @@ 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 */ PAGEFLAG(Reclaim, reclaim, PF_NO_TAIL) TESTCLEARFLAG(Reclaim, reclaim, PF_NO_TAIL) -PAGEFLAG(Readahead, reclaim, PF_NO_COMPOUND) - TESTCLEARFLAG(Readahead, reclaim, PF_NO_COMPOUND) +PAGEFLAG(Readahead, reclaim, PF_NO_TAIL) + TESTCLEARFLAG(Readahead, reclaim, PF_NO_TAIL) #ifdef CONFIG_HIGHMEM /*-- 2.11.0 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
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