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/gfs2/glops.c      | 2 +-
 fs/gfs2/ops_fstype.c | 4 ++--
 fs/gfs2/quota.c      | 2 +-
 fs/gfs2/recovery.c   | 2 +-
 fs/gfs2/super.c      | 4 ++--
 fs/gfs2/sys.c        | 2 +-
 6 files changed, 8 insertions(+), 8 deletions(-)

(limited to 'fs/gfs2')

diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 5e69636d4dd3..eb3ed24d85ee 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -580,7 +580,7 @@ static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
 	struct gfs2_inode *ip = gl->gl_object;
 	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
 
-	if (!remote || (sdp->sd_vfs->s_flags & MS_RDONLY))
+	if (!remote || sb_rdonly(sdp->sd_vfs))
 		return;
 
 	if (gl->gl_demote_state == LM_ST_UNLOCKED &&
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index e76058d34b74..49db6d0eb7c0 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -1037,7 +1037,7 @@ void gfs2_online_uevent(struct gfs2_sbd *sdp)
 	char ro[20];
 	char spectator[20];
 	char *envp[] = { ro, spectator, NULL };
-	sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0);
+	sprintf(ro, "RDONLY=%d", sb_rdonly(sb));
 	sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0);
 	kobject_uevent_env(&sdp->sd_kobj, KOBJ_ONLINE, envp);
 }
@@ -1179,7 +1179,7 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent
 		goto fail_per_node;
 	}
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		error = gfs2_make_fs_rw(sdp);
 		if (error) {
 			fs_err(sdp, "can't make FS RW: %d\n", error);
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index c2ca9566b764..2d815b0fc8e8 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -452,7 +452,7 @@ static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
 
 	*qdp = NULL;
 
-	if (sdp->sd_vfs->s_flags & MS_RDONLY)
+	if (sb_rdonly(sdp->sd_vfs))
 		return 0;
 
 	spin_lock(&qd_lock);
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 113b6095a58d..9395a3db1a60 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -522,7 +522,7 @@ void gfs2_recover_func(struct work_struct *work)
 			if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
 				ro = 1;
 		} else {
-			if (sdp->sd_vfs->s_flags & MS_RDONLY) {
+			if (sb_rdonly(sdp->sd_vfs)) {
 				/* check if device itself is read-only */
 				ro = bdev_read_only(sdp->sd_vfs->s_bdev);
 				if (!ro) {
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index fdedec379b78..51bf287080b4 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -893,7 +893,7 @@ restart:
 	}
 	spin_unlock(&sdp->sd_jindex_spin);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		error = gfs2_make_fs_ro(sdp);
 		if (error)
 			gfs2_io_error(sdp);
@@ -1535,7 +1535,7 @@ static void gfs2_evict_inode(struct inode *inode)
 		return;
 	}
 
-	if (inode->i_nlink || (sb->s_flags & MS_RDONLY))
+	if (inode->i_nlink || sb_rdonly(sb))
 		goto out;
 
 	if (test_bit(GIF_ALLOC_FAILED, &ip->i_flags)) {
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index ca1f97ff898c..9eb9d0a1abd9 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -645,7 +645,7 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
 	char *envp[] = { ro, spectator, NULL };
 	int sysfs_frees_sdp = 0;
 
-	sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0);
+	sprintf(ro, "RDONLY=%d", sb_rdonly(sb));
 	sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0);
 
 	sdp->sd_kobj.kset = gfs2_kset;
-- 
cgit