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2013-05-13staging: add mausezahn staging directoryDaniel Borkmann1-0/+931
After some back and forth, we decided that it is easier to maintain mausezahn in a staging directory until it is fully reworked and cleaned up to be ready to be fully integrated. This way, it is better than having it in a separate branch, and we can also accept patches from outside more easily. Also, while at it, fix up some function mismatches with libcli. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-09-10 07:43:45 +0000
/th>2f89dc12a25ddf995b9acd7b6543fe892e3473d6 (patch) treed162312aa8bdcb6602a9c30dd5810c0f2f8e0a16 /mm parenta6abc2c0e77b16480f4d2c1eb7925e5287ae1526 (diff)
dax: protect PTE modification on WP fault by radix tree entry lock
Currently PTE gets updated in wp_pfn_shared() after dax_pfn_mkwrite() has released corresponding radix tree entry lock. When we want to writeprotect PTE on cache flush, we need PTE modification to happen under radix tree entry lock to ensure consistent updates of PTE and radix tree (standard faults use page lock to ensure this consistency). So move update of PTE bit into dax_pfn_mkwrite(). Link: http://lkml.kernel.org/r/1479460644-25076-20-git-send-email-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/memory.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory.c b/mm/memory.c