From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: stable@vger.kernel.org
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: [5.4 PATCH 0/4] Fix a CONFIG_READ_ONLY_THP_FOR_FS bug
Date: Mon, 7 Jun 2021 21:08:41 +0100 [thread overview]
Message-ID: <20210607200845.3860579-1-willy@infradead.org> (raw)
This experimental feature has had a few bugs, but it has enough of
a performance effect that customers are actually asking for it to be
enabled. So we should apply this upstream bugfix that needs a little
massaging to backport. The first three patches enable the fix in the
fourth patch. I've run the XArray test-suite after applying these
patches, and it continues to pass.
Matthew Wilcox (Oracle) (4):
mm: add thp_order
XArray: add xa_get_order
XArray: add xas_split
mm/filemap: fix storing to a THP shadow entry
Documentation/core-api/xarray.rst | 16 ++-
include/linux/huge_mm.h | 19 +++
include/linux/xarray.h | 22 ++++
lib/test_xarray.c | 65 ++++++++++
lib/xarray.c | 208 ++++++++++++++++++++++++++++--
mm/filemap.c | 37 ++++--
6 files changed, 342 insertions(+), 25 deletions(-)
--
2.30.2
next reply other threads:[~2021-06-07 20:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-07 20:08 Matthew Wilcox (Oracle) [this message]
2021-06-07 20:08 ` [PATCH 1/4] mm: add thp_order Matthew Wilcox (Oracle)
2021-06-07 20:08 ` [PATCH 2/4] XArray: add xa_get_order Matthew Wilcox (Oracle)
2021-06-07 20:08 ` [PATCH 3/4] XArray: add xas_split Matthew Wilcox (Oracle)
2021-06-07 20:08 ` [PATCH 4/4] mm/filemap: fix storing to a THP shadow entry Matthew Wilcox (Oracle)
2021-06-08 14:58 ` [5.4 PATCH 0/4] Fix a CONFIG_READ_ONLY_THP_FOR_FS bug Greg KH
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