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| author | David Howells <dhowells@redhat.com> | 2017-07-17 09:45:34 +0200 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2017-07-17 09:45:34 +0200 |
| commit | bc98a42c1f7d0f886c0c1b75a92a004976a46d9f (patch) | |
| tree | 42a30f4f8d1aa3723f5356f2a5697b23317e2e19 /fs/namespace.c | |
| parent | vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags (diff) | |
| download | linux-bc98a42c1f7d0f886c0c1b75a92a004976a46d9f.tar.xz linux-bc98a42c1f7d0f886c0c1b75a92a004976a46d9f.zip | |
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>
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index f8893dc6a989..e42c9abfeaa8 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -275,7 +275,7 @@ int __mnt_is_readonly(struct vfsmount *mnt) { if (mnt->mnt_flags & MNT_READONLY) return 1; - if (mnt->mnt_sb->s_flags & MS_RDONLY) + if (sb_rdonly(mnt->mnt_sb)) return 1; return 0; } @@ -1534,7 +1534,7 @@ static int do_umount(struct mount *mnt, int flags) if (!capable(CAP_SYS_ADMIN)) return -EPERM; down_write(&sb->s_umount); - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) retval = do_remount_sb(sb, MS_RDONLY, NULL, 0); up_write(&sb->s_umount); return retval; @@ -3300,7 +3300,7 @@ static bool mnt_already_visible(struct mnt_namespace *ns, struct vfsmount *new, mnt_flags = mnt->mnt.mnt_flags; /* Don't miss readonly hidden in the superblock flags */ - if (mnt->mnt.mnt_sb->s_flags & MS_RDONLY) + if (sb_rdonly(mnt->mnt.mnt_sb)) mnt_flags |= MNT_LOCK_READONLY; /* Verify the mount flags are equal to or more permissive |