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

ira.weiny at intel.com ira.weiny at intel.com
Fri Oct 9 19:50:00 UTC 2020


From: Ira Weiny <ira.weiny at intel.com>

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 at suse.cz>
Cc: "Theodore Ts'o" <tytso at mit.edu>
Cc: Randy Dunlap <rdunlap at infradead.org>
Cc: Alex Shi <alex.shi at linux.alibaba.com>
Signed-off-by: Ira Weiny <ira.weiny at intel.com>
---
 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



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