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>
diff --git a/fs/super.c b/fs/super.c
index 6bc3352..7321958 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -820,7 +820,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
return -EACCES;
#endif
- remount_ro = (flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY);
+ remount_ro = (flags & MS_RDONLY) && !sb_rdonly(sb);
if (remount_ro) {
if (!hlist_empty(&sb->s_pins)) {
@@ -831,7 +831,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
return 0;
if (sb->s_writers.frozen != SB_UNFROZEN)
return -EBUSY;
- remount_ro = (flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY);
+ remount_ro = (flags & MS_RDONLY) && !sb_rdonly(sb);
}
}
shrink_dcache_sb(sb);
@@ -893,7 +893,7 @@ static void do_emergency_remount(struct work_struct *work)
spin_unlock(&sb_lock);
down_write(&sb->s_umount);
if (sb->s_root && sb->s_bdev && (sb->s_flags & MS_BORN) &&
- !(sb->s_flags & MS_RDONLY)) {
+ !sb_rdonly(sb)) {
/*
* What lock protects sb->s_flags??
*/
@@ -1439,7 +1439,7 @@ int freeze_super(struct super_block *sb)
return 0; /* sic - it's "nothing to do" */
}
- if (sb->s_flags & MS_RDONLY) {
+ if (sb_rdonly(sb)) {
/* Nothing to do really... */
sb->s_writers.frozen = SB_FREEZE_COMPLETE;
up_write(&sb->s_umount);
@@ -1502,7 +1502,7 @@ int thaw_super(struct super_block *sb)
return -EINVAL;
}
- if (sb->s_flags & MS_RDONLY) {
+ if (sb_rdonly(sb)) {
sb->s_writers.frozen = SB_UNFROZEN;
goto out;
}
