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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org From: Ira Weiny 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 Cc: Chao Yu Signed-off-by: Ira Weiny --- 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); -- 2.28.0.rc0.12.gb6a658bd00c9 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/