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VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)

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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>
This commit is contained in:
David Howells
2017-07-17 08:45:34 +01:00
parent 94e92e7ac9
commit bc98a42c1f
74 changed files with 210 additions and 226 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
fs/ocfs2/super.c
View File

@@ -675,7 +675,7 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
}
/* We're going to/from readonly mode. */
if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
if ((bool)(*flags & MS_RDONLY) != sb_rdonly(sb)) {
/* Disable quota accounting before remounting RO */
if (*flags & MS_RDONLY) {
ret = ocfs2_susp_quotas(osb, 0);
@@ -1063,7 +1063,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
/* Hard readonly mode only if: bdev_read_only, MS_RDONLY,
* heartbeat=none */
if (bdev_read_only(sb->s_bdev)) {
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
status = -EACCES;
mlog(ML_ERROR, "Readonly device detected but readonly "
"mount was not specified.\n");
@@ -1098,7 +1098,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
}
if (!ocfs2_is_hard_readonly(osb)) {
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
ocfs2_set_ro_flag(osb, 0);
}
@@ -1179,7 +1179,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
/* Now we can initialize quotas because we can afford to wait
* for cluster locks recovery now. That also means that truncation
* log recovery can happen but that waits for proper quota setup */
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
status = ocfs2_enable_quotas(osb);
if (status < 0) {
/* We have to err-out specially here because
@@ -2180,8 +2180,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
status = -EINVAL;
goto bail;
}
if (!(osb->sb->s_flags & MS_RDONLY) &&
(i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) {
if (!sb_rdonly(osb->sb) && (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) {
mlog(ML_ERROR, "couldn't mount RDWR because of "
"unsupported optional features (%x).\n", i);
status = -EINVAL;
@@ -2568,9 +2567,7 @@ static int ocfs2_handle_error(struct super_block *sb)
rv = -EIO;
} else { /* default option */
rv = -EROFS;
if (sb->s_flags & MS_RDONLY &&
(ocfs2_is_soft_readonly(osb) ||
ocfs2_is_hard_readonly(osb)))
if (sb_rdonly(sb) && (ocfs2_is_soft_readonly(osb) || ocfs2_is_hard_readonly(osb)))
return rv;
pr_crit("OCFS2: File system is now read-only.\n");