xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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

18
fs/reiserfs/super.c
View File

@@ -121,7 +121,7 @@ void reiserfs_schedule_old_flush(struct super_block *s)
* Avoid scheduling flush when sb is being shut down. It can race
* with journal shutdown and free still queued delayed work.
*/
if (s->s_flags & MS_RDONLY || !(s->s_flags & MS_ACTIVE))
if (sb_rdonly(s) || !(s->s_flags & MS_ACTIVE))
return;
spin_lock(&sbi->old_work_lock);
@@ -151,7 +151,7 @@ static int reiserfs_freeze(struct super_block *s)
reiserfs_cancel_old_flush(s);
reiserfs_write_lock(s);
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
int err = journal_begin(&th, s, 1);
if (err) {
reiserfs_block_writes(&th);
@@ -599,7 +599,7 @@ static void reiserfs_put_super(struct super_block *s)
* change file system state to current state if it was mounted
* with read-write permissions
*/
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
if (!journal_begin(&th, s, 10)) {
reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s),
1);
@@ -700,7 +700,7 @@ static void reiserfs_dirty_inode(struct inode *inode, int flags)
int err = 0;
if (inode->i_sb->s_flags & MS_RDONLY) {
if (sb_rdonly(inode->i_sb)) {
reiserfs_warning(inode->i_sb, "clm-6006",
"writing inode %lu on readonly FS",
inode->i_ino);
@@ -1525,7 +1525,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
reiserfs_write_unlock(s);
reiserfs_xattr_init(s, *mount_flags);
/* remount read-only */
if (s->s_flags & MS_RDONLY)
if (sb_rdonly(s))
/* it is read-only already */
goto out_ok_unlocked;
@@ -1551,7 +1551,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s));
} else {
/* remount read-write */
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
reiserfs_write_unlock(s);
reiserfs_xattr_init(s, *mount_flags);
goto out_ok_unlocked; /* We are read-write already */
@@ -1855,7 +1855,7 @@ static int what_hash(struct super_block *s)
* the super
*/
if (code != UNSET_HASH &&
!(s->s_flags & MS_RDONLY) &&
!sb_rdonly(s) &&
code != sb_hash_function_code(SB_DISK_SUPER_BLOCK(s))) {
set_sb_hash_function_code(SB_DISK_SUPER_BLOCK(s), code);
}
@@ -2052,7 +2052,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
if (replay_only(s))
goto error_unlocked;
if (bdev_read_only(s->s_bdev) && !(s->s_flags & MS_RDONLY)) {
if (bdev_read_only(s->s_bdev) && !sb_rdonly(s)) {
SWARN(silent, s, "clm-7000",
"Detected readonly device, marking FS readonly");
s->s_flags |= MS_RDONLY;
@@ -2101,7 +2101,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
else
set_bit(REISERFS_3_6, &sbi->s_properties);
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
errval = journal_begin(&th, s, 1);
if (errval) {