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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-01-15 15:20:53 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-01-15 15:20:53 +0100
commitbdfe0df1e97beedc15f68ee6556830548e81f63f (patch)
treeed4f0eb7acb8814642eb1fb4da0ac28704dc4fe0 /mm/migrate.c
parenta4723041857eaa35f189d237da769c4c63235544 (diff)
parent1c7fc5cbc33980acd13d668f1c8f0313d6ae9fd8 (diff)
Merge 5.0-rc2 into driver-core-next
We want the driver core changes in that branch in here to build on top of. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/migrate.c')
-rw-r--r--mm/migrate.c13
1 files changed, 1 insertions, 12 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index ccf8966caf6f..a16b15090df3 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1324,19 +1324,8 @@ static int unmap_and_move_huge_page(new_page_t get_new_page,
goto put_anon;
if (page_mapped(hpage)) {
- struct address_space *mapping = page_mapping(hpage);
-
- /*
- * try_to_unmap could potentially call huge_pmd_unshare.
- * Because of this, take semaphore in write mode here and
- * set TTU_RMAP_LOCKED to let lower levels know we have
- * taken the lock.
- */
- i_mmap_lock_write(mapping);
try_to_unmap(hpage,
- TTU_MIGRATION|TTU_IGNORE_MLOCK|TTU_IGNORE_ACCESS|
- TTU_RMAP_LOCKED);
- i_mmap_unlock_write(mapping);
+ TTU_MIGRATION|TTU_IGNORE_MLOCK|TTU_IGNORE_ACCESS);
page_was_mapped = 1;
}