From: Ira Weiny ira.weiny@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: Bob Peterson rpeterso@redhat.com Cc: Andreas Gruenbacher agruenba@redhat.com Signed-off-by: Ira Weiny ira.weiny@intel.com --- 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); }