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/sysv/balloc.c | 2 +-
 fs/sysv/ialloc.c | 2 +-
 fs/sysv/inode.c  | 2 +-
 fs/sysv/super.c  | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'fs/sysv')

diff --git a/fs/sysv/balloc.c b/fs/sysv/balloc.c
index 921c053fc052..862c1f74a583 100644
--- a/fs/sysv/balloc.c
+++ b/fs/sysv/balloc.c
@@ -231,7 +231,7 @@ trust_sb:
 Ecount:
 	printk("sysv_count_free_blocks: free block count was %d, "
 		"correcting to %d\n", sb_count, count);
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		*sbi->s_free_blocks = cpu_to_fs32(sbi, count);
 		dirty_sb(sb);
 	}
diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c
index 53f1b78996dd..eb963fbb7903 100644
--- a/fs/sysv/ialloc.c
+++ b/fs/sysv/ialloc.c
@@ -220,7 +220,7 @@ Einval:
 	printk("sysv_count_free_inodes: "
 		"free inode count was %d, correcting to %d\n",
 		sb_count, count);
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		*sbi->s_sb_total_free_inodes = cpu_to_fs16(SYSV_SB(sb), count);
 		dirty_sb(sb);
 	}
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index 858fb72f9e0f..1c8bf9453a71 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -70,7 +70,7 @@ static void sysv_put_super(struct super_block *sb)
 {
 	struct sysv_sb_info *sbi = SYSV_SB(sb);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		/* XXX ext2 also updates the state here */
 		mark_buffer_dirty(sbi->s_bh1);
 		if (sbi->s_bh1 != sbi->s_bh2)
diff --git a/fs/sysv/super.c b/fs/sysv/super.c
index eda10959714f..0d56e486b392 100644
--- a/fs/sysv/super.c
+++ b/fs/sysv/super.c
@@ -216,7 +216,7 @@ static int detect_sysv(struct sysv_sb_info *sbi, struct buffer_head *bh)
  	if (fs16_to_cpu(sbi, sbd->s_nfree) == 0xffff) {
  		sbi->s_type = FSTYPE_AFS;
 		sbi->s_forced_ro = 1;
- 		if (!(sb->s_flags & MS_RDONLY)) {
+ 		if (!sb_rdonly(sb)) {
  			printk("SysV FS: SCO EAFS on %s detected, " 
  				"forcing read-only mode.\n", 
  				sb->s_id);
-- 
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