linux-kernel - [PATCH 3/4] minixfs: Use dir_put_page() in minix_unlink() and minix

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Message-Id: <20231213000849.2748576-3-viro@zeniv.linux.org.uk>
Date:   Wed, 13 Dec 2023 00:08:48 +0000
From:   Al Viro <viro@...iv.linux.org.uk>
To:     linux-fsdevel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] minixfs: Use dir_put_page() in minix_unlink() and minix_rename()

... rather than open-coding it there.  Counterpart of the
corresponding fs/sysv commit from Fabio's series...

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 fs/minix/dir.c   |  6 ------
 fs/minix/minix.h |  5 +++++
 fs/minix/namei.c | 12 ++++--------
 3 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/fs/minix/dir.c b/fs/minix/dir.c
index 4e5483adea40..ccb6c47fd7fe 100644
--- a/fs/minix/dir.c
+++ b/fs/minix/dir.c
@@ -26,12 +26,6 @@ const struct file_operations minix_dir_operations = {
 	.fsync		= generic_file_fsync,
 };
 
-static inline void dir_put_page(struct page *page)
-{
-	kunmap(page);
-	put_page(page);
-}
-
 /*
  * Return the offset into page `page_nr' of the last valid
  * byte in that page, plus one.
diff --git a/fs/minix/minix.h b/fs/minix/minix.h
index d493507c064f..cb42b6cf7909 100644
--- a/fs/minix/minix.h
+++ b/fs/minix/minix.h
@@ -64,6 +64,11 @@ extern int V2_minix_get_block(struct inode *, long, struct buffer_head *, int);
 extern unsigned V1_minix_blocks(loff_t, struct super_block *);
 extern unsigned V2_minix_blocks(loff_t, struct super_block *);
 
+static inline void dir_put_page(struct page *page)
+{
+	kunmap(page);
+	put_page(page);
+}
 extern struct minix_dir_entry *minix_find_entry(struct dentry*, struct page**);
 extern int minix_add_link(struct dentry*, struct inode*);
 extern int minix_delete_entry(struct minix_dir_entry*, struct page*);
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index 114084d5636a..20923a15e30a 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -149,8 +149,7 @@ static int minix_unlink(struct inode * dir, struct dentry *dentry)
 	if (!de)
 		return -ENOENT;
 	err = minix_delete_entry(de, page);
-	kunmap(page);
-	put_page(page);
+	dir_put_page(page);
 
 	if (err)
 		return err;
@@ -242,13 +241,10 @@ static int minix_rename(struct mnt_idmap *idmap,
 			inode_dec_link_count(old_dir);
 	}
 out_dir:
-	if (dir_de) {
-		kunmap(dir_page);
-		put_page(dir_page);
-	}
+	if (dir_de)
+		dir_put_page(dir_page);
 out_old:
-	kunmap(old_page);
-	put_page(old_page);
+	dir_put_page(old_page);
 out:
 	return err;
 }
-- 
2.39.2