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

13
fs/ext2/super.c
View File

@@ -52,7 +52,7 @@ void ext2_error(struct super_block *sb, const char *function,
struct ext2_sb_info *sbi = EXT2_SB(sb);
struct ext2_super_block *es = sbi->s_es;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
spin_lock(&sbi->s_lock);
sbi->s_mount_state |= EXT2_ERROR_FS;
es->s_state |= cpu_to_le16(EXT2_ERROR_FS);
@@ -151,7 +151,7 @@ static void ext2_put_super (struct super_block * sb)
ext2_xattr_destroy_cache(sbi->s_ea_block_cache);
sbi->s_ea_block_cache = NULL;
}
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
struct ext2_super_block *es = sbi->s_es;
spin_lock(&sbi->s_lock);
@@ -940,8 +940,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
le32_to_cpu(features));
goto failed_mount;
}
if (!(sb->s_flags & MS_RDONLY) &&
(features = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){
if (!sb_rdonly(sb) && (features = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){
ext2_msg(sb, KERN_ERR, "error: couldn't mount RDWR because of "
"unsupported optional features (%x)",
le32_to_cpu(features));
@@ -1170,7 +1169,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))
ext2_msg(sb, KERN_WARNING,
"warning: mounting ext3 filesystem as ext2");
if (ext2_setup_super (sb, es, sb->s_flags & MS_RDONLY))
if (ext2_setup_super (sb, es, sb_rdonly(sb)))
sb->s_flags |= MS_RDONLY;
ext2_write_super(sb);
return 0;
@@ -1301,7 +1300,7 @@ static int ext2_unfreeze(struct super_block *sb)
static void ext2_write_super(struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
ext2_sync_fs(sb, 1);
}
@@ -1339,7 +1338,7 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
"dax flag with busy inodes while remounting");
sbi->s_mount_opt ^= EXT2_MOUNT_DAX;
}
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) {
spin_unlock(&sbi->s_lock);
return 0;
}