From bc98a42c1f7d0f886c0c1b75a92a004976a46d9f Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Mon, 17 Jul 2017 08:45:34 +0100
Subject: VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)

Firstly by applying the following with coccinelle's spatch:

	@@ expression SB; @@
	-SB->s_flags & MS_RDONLY
	+sb_rdonly(SB)

to effect the conversion to sb_rdonly(sb), then by applying:

	@@ expression A, SB; @@
	(
	-(!sb_rdonly(SB)) && A
	+!sb_rdonly(SB) && A
	|
	-A != (sb_rdonly(SB))
	+A != sb_rdonly(SB)
	|
	-A == (sb_rdonly(SB))
	+A == sb_rdonly(SB)
	|
	-!(sb_rdonly(SB))
	+!sb_rdonly(SB)
	|
	-A && (sb_rdonly(SB))
	+A && sb_rdonly(SB)
	|
	-A || (sb_rdonly(SB))
	+A || sb_rdonly(SB)
	|
	-(sb_rdonly(SB)) != A
	+sb_rdonly(SB) != A
	|
	-(sb_rdonly(SB)) == A
	+sb_rdonly(SB) == A
	|
	-(sb_rdonly(SB)) && A
	+sb_rdonly(SB) && A
	|
	-(sb_rdonly(SB)) || A
	+sb_rdonly(SB) || A
	)

	@@ expression A, B, SB; @@
	(
	-(sb_rdonly(SB)) ? 1 : 0
	+sb_rdonly(SB)
	|
	-(sb_rdonly(SB)) ? A : B
	+sb_rdonly(SB) ? A : B
	)

to remove left over excess bracketage and finally by applying:

	@@ expression A, SB; @@
	(
	-(A & MS_RDONLY) != sb_rdonly(SB)
	+(bool)(A & MS_RDONLY) != sb_rdonly(SB)
	|
	-(A & MS_RDONLY) == sb_rdonly(SB)
	+(bool)(A & MS_RDONLY) == sb_rdonly(SB)
	)

to make comparisons against the result of sb_rdonly() (which is a bool)
work correctly.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 fs/affs/amigaffs.c | 2 +-
 fs/affs/bitmap.c   | 2 +-
 fs/affs/super.c    | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'fs/affs')

diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index b573c3b9a328..8cf941c3b511 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -450,7 +450,7 @@ affs_error(struct super_block *sb, const char *function, const char *fmt, ...)
 	vaf.fmt = fmt;
 	vaf.va = &args;
 	pr_crit("error (device %s): %s(): %pV\n", sb->s_id, function, &vaf);
-	if (!(sb->s_flags & MS_RDONLY))
+	if (!sb_rdonly(sb))
 		pr_warn("Remounting filesystem read-only\n");
 	sb->s_flags |= MS_RDONLY;
 	va_end(args);
diff --git a/fs/affs/bitmap.c b/fs/affs/bitmap.c
index 675148950fed..2b2112475ec2 100644
--- a/fs/affs/bitmap.c
+++ b/fs/affs/bitmap.c
@@ -19,7 +19,7 @@ affs_count_free_blocks(struct super_block *sb)
 
 	pr_debug("%s()\n", __func__);
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return 0;
 
 	mutex_lock(&AFFS_SB(sb)->s_bmlock);
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 7bf47a41cb4f..884bedab7266 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -80,7 +80,7 @@ void affs_mark_sb_dirty(struct super_block *sb)
 	struct affs_sb_info *sbi = AFFS_SB(sb);
 	unsigned long delay;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 	       return;
 
 	spin_lock(&sbi->work_lock);
@@ -464,7 +464,7 @@ got_root:
 	 * not recommended.
 	 */
 	if ((chksum == FS_DCFFS || chksum == MUFS_DCFFS || chksum == FS_DCOFS
-	     || chksum == MUFS_DCOFS) && !(sb->s_flags & MS_RDONLY)) {
+	     || chksum == MUFS_DCOFS) && !sb_rdonly(sb)) {
 		pr_notice("Dircache FS - mounting %s read only\n", sb->s_id);
 		sb->s_flags |= MS_RDONLY;
 	}
@@ -596,7 +596,7 @@ affs_remount(struct super_block *sb, int *flags, char *data)
 	memcpy(sbi->s_volume, volume, 32);
 	spin_unlock(&sbi->symlink_lock);
 
-	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
 		return 0;
 
 	if (*flags & MS_RDONLY)
-- 
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