Ocfs2 devel - Mar 2023 - [PATCH v2 1/5] fs: add i_blockmask()

The message from this sender included one or more files
which could not be scanned for virus detection; do not
open these files unless you are certain of the sender's intent.

----------------------------------------------------------------------
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 at vivo.com>
---
v2:
-convert to i_blockmask()
 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

Use i_blockmask() to simplify code.

Signed-off-by: Yangtao Li <frank.li at vivo.com>
---
v2:
-convert to i_blockmask()
 fs/erofs/data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index 7e8baf56faa5..e9d1869cd4b3 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -380,7 +380,7 @@ static ssize_t erofs_file_read_iter(struct kiocb *iocb,
struct iov_iter *to)
 		if (bdev)
 			blksize_mask = bdev_logical_block_size(bdev) - 1;
 		else
-			blksize_mask = i_blocksize(inode) - 1;
+			blksize_mask = i_blockmask(inode);
 
 		if ((iocb->ki_pos | iov_iter_count(to) |
 		     iov_iter_alignment(to)) & blksize_mask)
-- 
2.25.1

Use i_blockmask() to simplify code.

Signed-off-by: Yangtao Li <frank.li at vivo.com>
---
v2:
-convert to i_blockmask()
 fs/gfs2/bmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index eedf6926c652..1c6874b3851a 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -960,7 +960,7 @@ static struct folio *
 gfs2_iomap_get_folio(struct iomap_iter *iter, loff_t pos, unsigned len)
 {
 	struct inode *inode = iter->inode;
-	unsigned int blockmask = i_blocksize(inode) - 1;
+	unsigned int blockmask = i_blockmask(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	unsigned int blocks;
 	struct folio *folio;
-- 
2.25.1

Use i_blockmask() to simplify code.

Signed-off-by: Yangtao Li <frank.li at vivo.com>
---
v2:
-convert to i_blockmask()
 fs/ext4/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index d251d705c276..eec36520e5e9 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2218,7 +2218,7 @@ static int mpage_process_page_bufs(struct mpage_da_data
*mpd,
 {
 	struct inode *inode = mpd->inode;
 	int err;
-	ext4_lblk_t blocks = (i_size_read(inode) + i_blocksize(inode) - 1)
+	ext4_lblk_t blocks = (i_size_read(inode) + i_blockmask(inode))
 							>> inode->i_blkbits;
 
 	if (ext4_verity_in_progress(inode))
-- 
2.25.1

Use i_blockmask() to simplify code. BTW convert ocfs2_is_io_unaligned
to return bool type.

Signed-off-by: Yangtao Li <frank.li at vivo.com>
---
 fs/ocfs2/file.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index efb09de4343d..baefab3b12c9 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2159,14 +2159,14 @@ int ocfs2_check_range_for_refcount(struct inode *inode,
loff_t pos,
 	return ret;
 }
 
-static int ocfs2_is_io_unaligned(struct inode *inode, size_t count, loff_t pos)
+static bool ocfs2_is_io_unaligned(struct inode *inode, size_t count, loff_t
pos)
 {
-	int blockmask = inode->i_sb->s_blocksize - 1;
+	int blockmask = i_blockmask(inode);
 	loff_t final_size = pos + count;
 
 	if ((pos & blockmask) || (final_size & blockmask))
-		return 1;
-	return 0;
+		return true;
+	return false;
 }
 
 static int ocfs2_inode_lock_for_extent_tree(struct inode *inode,
-- 
2.25.1

On Thu, Mar 09, 2023 at 08:40:31PM +0800, Yangtao Li
wrote:
> 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 at vivo.com>
> ---
Looks good but did you forget to convert fs/remap_range.c by any chance?

static int generic_remap_check_len(struct inode *inode_in,
                                   struct inode *inode_out,
                                   loff_t pos_out,
                                   loff_t *len,
                                   unsigned int remap_flags)
{
        u64 blkmask = i_blocksize(inode_in) - 1;