[PATCH RFC PKS/PMEM 16/58] fs/gfs2: 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: Bob Peterson <rpeterso@xxxxxxxxxx>
Cc: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>
---
 fs/gfs2/bmap.c       | 4 ++--
 fs/gfs2/ops_fstype.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 0f69fbd4af66..375af4528411 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -67,7 +67,7 @@ static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct 
buffer_head *dibh,
        }
 
        if (!PageUptodate(page)) {
-               void *kaddr = kmap(page);
+               void *kaddr = kmap_thread(page);
                u64 dsize = i_size_read(inode);
  
                if (dsize > gfs2_max_stuffed_size(ip))
@@ -75,7 +75,7 @@ static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct 
buffer_head *dibh,
 
                memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode), dsize);
                memset(kaddr + dsize, 0, PAGE_SIZE - dsize);
-               kunmap(page);
+               kunmap_thread(page);
 
                SetPageUptodate(page);
        }
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 6d18d2c91add..a5d20d9b504a 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -263,9 +263,9 @@ static int gfs2_read_super(struct gfs2_sbd *sdp, sector_t 
sector, int silent)
                __free_page(page);
                return -EIO;
        }
-       p = kmap(page);
+       p = kmap_thread(page);
        gfs2_sb_in(sdp, p);
-       kunmap(page);
+       kunmap_thread(page);
        __free_page(page);
        return gfs2_check_sb(sdp, silent);
 }
-- 
2.28.0.rc0.12.gb6a658bd00c9