[PATCH v4 1/5] fs: add i_blockmask()

[Yangtao Li]

Introduce i_blockmask() to simplify code, which replace
(i_blocksize(node) - 1). Like done in commit
93407472a21b("fs: add i_blocksize()").

Signed-off-by: Yangtao Li <frank.li@xxxxxxxx>
---
v4:
-drop ext4 patch
-erofs patch based on mainline
-a bit change in ocfs2 patch
 include/linux/fs.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/fs.h b/include/linux/fs.h
index c85916e9f7db..17387d465b8b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -711,6 +711,11 @@ static inline unsigned int i_blocksize(const struct inode *node)
 	return (1 << node->i_blkbits);
 }
 
+static inline unsigned int i_blockmask(const struct inode *node)
+{
+	return i_blocksize(node) - 1;
+}
+
 static inline int inode_unhashed(struct inode *inode)
 {
 	return hlist_unhashed(&inode->i_hash);
-- 
2.25.1