]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
mm/pgtable: define pte_index so that preprocessor could recognize it
authorMike Rapoport <rppt@linux.ibm.com>
Fri, 4 Feb 2022 04:49:29 +0000 (20:49 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 4 Feb 2022 17:25:05 +0000 (09:25 -0800)
commit314c459a6fe0957b5885fbc65c53d51444092880
tree86f40b7b2bf599feffc6c7b1c06d7caac84bd4f6
parent80110bbfbba6f0078d5a1cbc8df004506db8ffe5
mm/pgtable: define pte_index so that preprocessor could recognize it

Since commit 974b9b2c68f3 ("mm: consolidate pte_index() and
pte_offset_*() definitions") pte_index is a static inline and there is
no define for it that can be recognized by the preprocessor.  As a
result, vm_insert_pages() uses slower loop over vm_insert_page() instead
of insert_pages() that amortizes the cost of spinlock operations when
inserting multiple pages.

Link: https://lkml.kernel.org/r/20220111145457.20748-1-rppt@kernel.org
Fixes: 974b9b2c68f3 ("mm: consolidate pte_index() and pte_offset_*() definitions")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reported-by: Christian Dietrich <stettberger@dokucode.de>
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/pgtable.h