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/fat/fatent.c | 2 +-
 fs/fat/inode.c  | 4 ++--
 fs/fat/misc.c   | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'fs/fat')

diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 1d9a8c4e9de0..48b2336692f9 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -309,7 +309,7 @@ static void mark_fsinfo_dirty(struct super_block *sb)
 {
 	struct msdos_sb_info *sbi = MSDOS_SB(sb);
 
-	if (sb->s_flags & MS_RDONLY || sbi->fat_bits != 32)
+	if (sb_rdonly(sb) || sbi->fat_bits != 32)
 		return;
 
 	__mark_inode_dirty(sbi->fsinfo_inode, I_DIRTY_SYNC);
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index a2c05f2ada6d..30c52394a7ad 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -657,7 +657,7 @@ static void fat_set_state(struct super_block *sb,
 	struct msdos_sb_info *sbi = MSDOS_SB(sb);
 
 	/* do not change any thing if mounted read only */
-	if ((sb->s_flags & MS_RDONLY) && !force)
+	if (sb_rdonly(sb) && !force)
 		return;
 
 	/* do not change state if fs was dirty */
@@ -787,7 +787,7 @@ static int fat_remount(struct super_block *sb, int *flags, char *data)
 
 	/* make sure we update state on remount. */
 	new_rdonly = *flags & MS_RDONLY;
-	if (new_rdonly != (sb->s_flags & MS_RDONLY)) {
+	if (new_rdonly != sb_rdonly(sb)) {
 		if (new_rdonly)
 			fat_set_state(sb, 0, 0);
 		else
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index 8a8698119ff7..acc3aa30ee54 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -32,7 +32,7 @@ void __fat_fs_error(struct super_block *sb, int report, const char *fmt, ...)
 
 	if (opts->errors == FAT_ERRORS_PANIC)
 		panic("FAT-fs (%s): fs panic from previous error\n", sb->s_id);
-	else if (opts->errors == FAT_ERRORS_RO && !(sb->s_flags & MS_RDONLY)) {
+	else if (opts->errors == FAT_ERRORS_RO && !sb_rdonly(sb)) {
 		sb->s_flags |= MS_RDONLY;
 		fat_msg(sb, KERN_ERR, "Filesystem has been set read-only");
 	}
-- 
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