[PATCH RFC PKS/PMEM 25/58] fs/reiserfs: Utilize new kmap_thread()

[ira.weiny@xxxxxxxxx]

From: Ira Weiny <ira.weiny@xxxxxxxxx>

The kmap() calls in this FS are localized to a single thread.  To avoid
the over head of global PKRS updates use the new kmap_thread() call.

Cc: Jan Kara <jack@xxxxxxx>
Cc: "Theodore Ts'o" <tytso@xxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx>
Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>
---
 fs/reiserfs/journal.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index e98f99338f8f..be8f56261e8c 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -4194,11 +4194,11 @@ static int do_journal_end(struct 
reiserfs_transaction_handle *th, int flags)
                                            SB_ONDISK_JOURNAL_SIZE(sb)));
                        set_buffer_uptodate(tmp_bh);
                        page = cn->bh->b_page;
-                       addr = kmap(page);
+                       addr = kmap_thread(page);
                        memcpy(tmp_bh->b_data,
                               addr + offset_in_page(cn->bh->b_data),
                               cn->bh->b_size);
-                       kunmap(page);
+                       kunmap_thread(page);
                        mark_buffer_dirty(tmp_bh);
                        jindex++;
                        set_buffer_journal_dirty(cn->bh);
-- 
2.28.0.rc0.12.gb6a658bd00c9