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: Gao Xiang xiang@kernel.org Cc: Chao Yu chao@kernel.org Signed-off-by: Ira Weiny ira.weiny@intel.com --- fs/erofs/super.c | 4 ++-- fs/erofs/xattr.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/erofs/super.c b/fs/erofs/super.c index ddaa516c008a..41696b60f1b3 100644 --- a/fs/erofs/super.c +++ b/fs/erofs/super.c @@ -139,7 +139,7 @@ static int erofs_read_superblock(struct super_block *sb)
sbi = EROFS_SB(sb);
- data = kmap(page); + data = kmap_thread(page); dsb = (struct erofs_super_block *)(data + EROFS_SUPER_OFFSET);
ret = -EINVAL; @@ -189,7 +189,7 @@ static int erofs_read_superblock(struct super_block *sb) } ret = 0; out: - kunmap(page); + kunmap_thread(page); put_page(page); return ret; } diff --git a/fs/erofs/xattr.c b/fs/erofs/xattr.c index c8c381eadcd6..1771baa99d77 100644 --- a/fs/erofs/xattr.c +++ b/fs/erofs/xattr.c @@ -20,7 +20,7 @@ static inline void xattr_iter_end(struct xattr_iter *it, bool atomic) { /* the only user of kunmap() is 'init_inode_xattrs' */ if (!atomic) - kunmap(it->page); + kunmap_thread(it->page); else kunmap_atomic(it->kaddr);
@@ -96,7 +96,7 @@ static int init_inode_xattrs(struct inode *inode) }
/* read in shared xattr array (non-atomic, see kmalloc below) */ - it.kaddr = kmap(it.page); + it.kaddr = kmap_thread(it.page); atomic_map = false;
ih = (struct erofs_xattr_ibody_header *)(it.kaddr + it.ofs);