diff mbox series

[1/7] btrfs-progs: export btrfs_feature structure

Message ID 512e1bb1572d5ffc3557a86a4ce3860420352214.1693900169.git.wqu@suse.com (mailing list archive)
State New, archived
Headers show
Series btrfs-progs: cmds/tune: add set/clear features | expand

Commit Message

Qu Wenruo Sept. 5, 2023, 7:51 a.m. UTC
For the incoming "btrfs tune" subcommand, we will have different
features supported by that subcommand.

Instead of bloating the runtime and mkfs features, here we just export
btrfs_feature, so each subcommand can have their own definition of
supported features.

And since we're here, also add needed headers for future users of
"fsfeatures.h".

Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 common/fsfeatures.c | 53 ---------------------------------------------
 common/fsfeatures.h | 50 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+), 53 deletions(-)

Comments

Anand Jain Sept. 21, 2023, 12:32 a.m. UTC | #1
On 05/09/2023 15:51, Qu Wenruo wrote:
> For the incoming "btrfs tune" subcommand, we will have different
> features supported by that subcommand.
> 
> Instead of bloating the runtime and mkfs features, here we just export
> btrfs_feature, so each subcommand can have their own definition of
> supported features.
> 

Looks good.

> And since we're here, also add needed headers for future users of
> "fsfeatures.h".
> 
I don't see anything added, missed?

Thanks, Anand

> Signed-off-by: Qu Wenruo <wqu@suse.com>
> ---
>   common/fsfeatures.c | 53 ---------------------------------------------
>   common/fsfeatures.h | 50 ++++++++++++++++++++++++++++++++++++++++++
>   2 files changed, 50 insertions(+), 53 deletions(-)
> 
> diff --git a/common/fsfeatures.c b/common/fsfeatures.c
> index 9ee392d3a8a6..f8eeea7695c1 100644
> --- a/common/fsfeatures.c
> +++ b/common/fsfeatures.c
> @@ -32,64 +32,11 @@
>   #include "common/sysfs-utils.h"
>   #include "common/messages.h"
>   
> -/*
> - * Insert a root item for temporary tree root
> - *
> - * Only used in make_btrfs_v2().
> - */
> -#define VERSION_TO_STRING3(name, a,b,c)				\
> -	.name ## _str = #a "." #b "." #c,			\
> -	.name ## _ver = KERNEL_VERSION(a,b,c)
> -#define VERSION_TO_STRING2(name, a,b)				\
> -	.name ## _str = #a "." #b,				\
> -	.name ## _ver = KERNEL_VERSION(a,b,0)
> -#define VERSION_NULL(name)					\
> -	.name ## _str = NULL,					\
> -	.name ## _ver = 0
> -
>   enum feature_source {
>   	FS_FEATURES,
>   	RUNTIME_FEATURES,
>   };
>   
> -/*
> - * Feature stability status and versions: compat <= safe <= default
> - */
> -struct btrfs_feature {
> -	const char *name;
> -
> -	/*
> -	 * At least one of the bit must be set in the following *_flag member.
> -	 *
> -	 * For features like list-all and quota which don't have any
> -	 * incompat/compat_ro bit set, it go to runtime_flag.
> -	 */
> -	u64 incompat_flag;
> -	u64 compat_ro_flag;
> -	u64 runtime_flag;
> -
> -	const char *sysfs_name;
> -	/*
> -	 * Compatibility with kernel of given version. Filesystem can be
> -	 * mounted.
> -	 */
> -	const char *compat_str;
> -	u32 compat_ver;
> -	/*
> -	 * Considered safe for use, but is not on by default, even if the
> -	 * kernel supports the feature.
> -	 */
> -	const char *safe_str;
> -	u32 safe_ver;
> -	/*
> -	 * Considered safe for use and will be turned on by default if
> -	 * supported by the running kernel.
> -	 */
> -	const char *default_str;
> -	u32 default_ver;
> -	const char *desc;
> -};
> -
>   static const struct btrfs_feature mkfs_features[] = {
>   	{
>   		.name		= "mixed-bg",
> diff --git a/common/fsfeatures.h b/common/fsfeatures.h
> index c4ab704862cd..c9fb489d2d79 100644
> --- a/common/fsfeatures.h
> +++ b/common/fsfeatures.h
> @@ -19,7 +19,9 @@
>   
>   #include "kerncompat.h"
>   #include <stdio.h>
> +#include <linux/version.h>
>   #include "kernel-lib/sizes.h"
> +#include "kernel-shared/uapi/btrfs.h"
>   
>   #define BTRFS_MKFS_DEFAULT_NODE_SIZE SZ_16K
>   
> @@ -43,6 +45,54 @@ struct btrfs_mkfs_features {
>    */
>   #define BTRFS_FEATURE_STRING_BUF_SIZE		(160)
>   
> +#define VERSION_TO_STRING3(name, a,b,c)				\
> +	.name ## _str = #a "." #b "." #c,			\
> +	.name ## _ver = KERNEL_VERSION(a,b,c)
> +#define VERSION_TO_STRING2(name, a,b)				\
> +	.name ## _str = #a "." #b,				\
> +	.name ## _ver = KERNEL_VERSION(a,b,0)
> +#define VERSION_NULL(name)					\
> +	.name ## _str = NULL,					\
> +	.name ## _ver = 0
> +
> +/*
> + * Feature stability status and versions: compat <= safe <= default
> + */
> +struct btrfs_feature {
> +	const char *name;
> +
> +	/*
> +	 * At least one of the bit must be set in the following *_flag member.
> +	 *
> +	 * For features like list-all and quota which don't have any
> +	 * incompat/compat_ro bit set, it go to runtime_flag.
> +	 */
> +	u64 incompat_flag;
> +	u64 compat_ro_flag;
> +	u64 runtime_flag;
> +
> +	const char *sysfs_name;
> +	/*
> +	 * Compatibility with kernel of given version. Filesystem can be
> +	 * mounted.
> +	 */
> +	const char *compat_str;
> +	u32 compat_ver;
> +	/*
> +	 * Considered safe for use, but is not on by default, even if the
> +	 * kernel supports the feature.
> +	 */
> +	const char *safe_str;
> +	u32 safe_ver;
> +	/*
> +	 * Considered safe for use and will be turned on by default if
> +	 * supported by the running kernel.
> +	 */
> +	const char *default_str;
> +	u32 default_ver;
> +	const char *desc;
> +};
> +
>   static const struct btrfs_mkfs_features btrfs_mkfs_default_features = {
>   	.compat_ro_flags = BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE |
>   			   BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID,
Qu Wenruo Sept. 21, 2023, 9:35 p.m. UTC | #2
On 2023/9/21 10:02, Anand Jain wrote:
> On 05/09/2023 15:51, Qu Wenruo wrote:
>> For the incoming "btrfs tune" subcommand, we will have different
>> features supported by that subcommand.
>>
>> Instead of bloating the runtime and mkfs features, here we just export
>> btrfs_feature, so each subcommand can have their own definition of
>> supported features.
>>
>
> Looks good.
>
>> And since we're here, also add needed headers for future users of
>> "fsfeatures.h".
>>
> I don't see anything added, missed?

My bad, the line is not clear enough.

There are two added #include lines inside "fsfeatures.h", as during
development I found if we just include "fsfeatures.h" by itself, there
would be some missing definitions.

Thus we have the following lines:

--- a/common/fsfeatures.h
+++ b/common/fsfeatures.h
@@ -19,7 +19,9 @@

  #include "kerncompat.h"
  #include <stdio.h>
+#include <linux/version.h>
  #include "kernel-lib/sizes.h"
+#include "kernel-shared/uapi/btrfs.h"

Thanks,
Qu
>
> Thanks, Anand
>
>> Signed-off-by: Qu Wenruo <wqu@suse.com>
>> ---
>>   common/fsfeatures.c | 53 ---------------------------------------------
>>   common/fsfeatures.h | 50 ++++++++++++++++++++++++++++++++++++++++++
>>   2 files changed, 50 insertions(+), 53 deletions(-)
>>
>> diff --git a/common/fsfeatures.c b/common/fsfeatures.c
>> index 9ee392d3a8a6..f8eeea7695c1 100644
>> --- a/common/fsfeatures.c
>> +++ b/common/fsfeatures.c
>> @@ -32,64 +32,11 @@
>>   #include "common/sysfs-utils.h"
>>   #include "common/messages.h"
>> -/*
>> - * Insert a root item for temporary tree root
>> - *
>> - * Only used in make_btrfs_v2().
>> - */
>> -#define VERSION_TO_STRING3(name, a,b,c)                \
>> -    .name ## _str = #a "." #b "." #c,            \
>> -    .name ## _ver = KERNEL_VERSION(a,b,c)
>> -#define VERSION_TO_STRING2(name, a,b)                \
>> -    .name ## _str = #a "." #b,                \
>> -    .name ## _ver = KERNEL_VERSION(a,b,0)
>> -#define VERSION_NULL(name)                    \
>> -    .name ## _str = NULL,                    \
>> -    .name ## _ver = 0
>> -
>>   enum feature_source {
>>       FS_FEATURES,
>>       RUNTIME_FEATURES,
>>   };
>> -/*
>> - * Feature stability status and versions: compat <= safe <= default
>> - */
>> -struct btrfs_feature {
>> -    const char *name;
>> -
>> -    /*
>> -     * At least one of the bit must be set in the following *_flag
>> member.
>> -     *
>> -     * For features like list-all and quota which don't have any
>> -     * incompat/compat_ro bit set, it go to runtime_flag.
>> -     */
>> -    u64 incompat_flag;
>> -    u64 compat_ro_flag;
>> -    u64 runtime_flag;
>> -
>> -    const char *sysfs_name;
>> -    /*
>> -     * Compatibility with kernel of given version. Filesystem can be
>> -     * mounted.
>> -     */
>> -    const char *compat_str;
>> -    u32 compat_ver;
>> -    /*
>> -     * Considered safe for use, but is not on by default, even if the
>> -     * kernel supports the feature.
>> -     */
>> -    const char *safe_str;
>> -    u32 safe_ver;
>> -    /*
>> -     * Considered safe for use and will be turned on by default if
>> -     * supported by the running kernel.
>> -     */
>> -    const char *default_str;
>> -    u32 default_ver;
>> -    const char *desc;
>> -};
>> -
>>   static const struct btrfs_feature mkfs_features[] = {
>>       {
>>           .name        = "mixed-bg",
>> diff --git a/common/fsfeatures.h b/common/fsfeatures.h
>> index c4ab704862cd..c9fb489d2d79 100644
>> --- a/common/fsfeatures.h
>> +++ b/common/fsfeatures.h
>> @@ -19,7 +19,9 @@
>>   #include "kerncompat.h"
>>   #include <stdio.h>
>> +#include <linux/version.h>
>>   #include "kernel-lib/sizes.h"
>> +#include "kernel-shared/uapi/btrfs.h"
>>   #define BTRFS_MKFS_DEFAULT_NODE_SIZE SZ_16K
>> @@ -43,6 +45,54 @@ struct btrfs_mkfs_features {
>>    */
>>   #define BTRFS_FEATURE_STRING_BUF_SIZE        (160)
>> +#define VERSION_TO_STRING3(name, a,b,c)                \
>> +    .name ## _str = #a "." #b "." #c,            \
>> +    .name ## _ver = KERNEL_VERSION(a,b,c)
>> +#define VERSION_TO_STRING2(name, a,b)                \
>> +    .name ## _str = #a "." #b,                \
>> +    .name ## _ver = KERNEL_VERSION(a,b,0)
>> +#define VERSION_NULL(name)                    \
>> +    .name ## _str = NULL,                    \
>> +    .name ## _ver = 0
>> +
>> +/*
>> + * Feature stability status and versions: compat <= safe <= default
>> + */
>> +struct btrfs_feature {
>> +    const char *name;
>> +
>> +    /*
>> +     * At least one of the bit must be set in the following *_flag
>> member.
>> +     *
>> +     * For features like list-all and quota which don't have any
>> +     * incompat/compat_ro bit set, it go to runtime_flag.
>> +     */
>> +    u64 incompat_flag;
>> +    u64 compat_ro_flag;
>> +    u64 runtime_flag;
>> +
>> +    const char *sysfs_name;
>> +    /*
>> +     * Compatibility with kernel of given version. Filesystem can be
>> +     * mounted.
>> +     */
>> +    const char *compat_str;
>> +    u32 compat_ver;
>> +    /*
>> +     * Considered safe for use, but is not on by default, even if the
>> +     * kernel supports the feature.
>> +     */
>> +    const char *safe_str;
>> +    u32 safe_ver;
>> +    /*
>> +     * Considered safe for use and will be turned on by default if
>> +     * supported by the running kernel.
>> +     */
>> +    const char *default_str;
>> +    u32 default_ver;
>> +    const char *desc;
>> +};
>> +
>>   static const struct btrfs_mkfs_features btrfs_mkfs_default_features = {
>>       .compat_ro_flags = BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE |
>>                  BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID,
>
diff mbox series

Patch

diff --git a/common/fsfeatures.c b/common/fsfeatures.c
index 9ee392d3a8a6..f8eeea7695c1 100644
--- a/common/fsfeatures.c
+++ b/common/fsfeatures.c
@@ -32,64 +32,11 @@ 
 #include "common/sysfs-utils.h"
 #include "common/messages.h"
 
-/*
- * Insert a root item for temporary tree root
- *
- * Only used in make_btrfs_v2().
- */
-#define VERSION_TO_STRING3(name, a,b,c)				\
-	.name ## _str = #a "." #b "." #c,			\
-	.name ## _ver = KERNEL_VERSION(a,b,c)
-#define VERSION_TO_STRING2(name, a,b)				\
-	.name ## _str = #a "." #b,				\
-	.name ## _ver = KERNEL_VERSION(a,b,0)
-#define VERSION_NULL(name)					\
-	.name ## _str = NULL,					\
-	.name ## _ver = 0
-
 enum feature_source {
 	FS_FEATURES,
 	RUNTIME_FEATURES,
 };
 
-/*
- * Feature stability status and versions: compat <= safe <= default
- */
-struct btrfs_feature {
-	const char *name;
-
-	/*
-	 * At least one of the bit must be set in the following *_flag member.
-	 *
-	 * For features like list-all and quota which don't have any
-	 * incompat/compat_ro bit set, it go to runtime_flag.
-	 */
-	u64 incompat_flag;
-	u64 compat_ro_flag;
-	u64 runtime_flag;
-
-	const char *sysfs_name;
-	/*
-	 * Compatibility with kernel of given version. Filesystem can be
-	 * mounted.
-	 */
-	const char *compat_str;
-	u32 compat_ver;
-	/*
-	 * Considered safe for use, but is not on by default, even if the
-	 * kernel supports the feature.
-	 */
-	const char *safe_str;
-	u32 safe_ver;
-	/*
-	 * Considered safe for use and will be turned on by default if
-	 * supported by the running kernel.
-	 */
-	const char *default_str;
-	u32 default_ver;
-	const char *desc;
-};
-
 static const struct btrfs_feature mkfs_features[] = {
 	{
 		.name		= "mixed-bg",
diff --git a/common/fsfeatures.h b/common/fsfeatures.h
index c4ab704862cd..c9fb489d2d79 100644
--- a/common/fsfeatures.h
+++ b/common/fsfeatures.h
@@ -19,7 +19,9 @@ 
 
 #include "kerncompat.h"
 #include <stdio.h>
+#include <linux/version.h>
 #include "kernel-lib/sizes.h"
+#include "kernel-shared/uapi/btrfs.h"
 
 #define BTRFS_MKFS_DEFAULT_NODE_SIZE SZ_16K
 
@@ -43,6 +45,54 @@  struct btrfs_mkfs_features {
  */
 #define BTRFS_FEATURE_STRING_BUF_SIZE		(160)
 
+#define VERSION_TO_STRING3(name, a,b,c)				\
+	.name ## _str = #a "." #b "." #c,			\
+	.name ## _ver = KERNEL_VERSION(a,b,c)
+#define VERSION_TO_STRING2(name, a,b)				\
+	.name ## _str = #a "." #b,				\
+	.name ## _ver = KERNEL_VERSION(a,b,0)
+#define VERSION_NULL(name)					\
+	.name ## _str = NULL,					\
+	.name ## _ver = 0
+
+/*
+ * Feature stability status and versions: compat <= safe <= default
+ */
+struct btrfs_feature {
+	const char *name;
+
+	/*
+	 * At least one of the bit must be set in the following *_flag member.
+	 *
+	 * For features like list-all and quota which don't have any
+	 * incompat/compat_ro bit set, it go to runtime_flag.
+	 */
+	u64 incompat_flag;
+	u64 compat_ro_flag;
+	u64 runtime_flag;
+
+	const char *sysfs_name;
+	/*
+	 * Compatibility with kernel of given version. Filesystem can be
+	 * mounted.
+	 */
+	const char *compat_str;
+	u32 compat_ver;
+	/*
+	 * Considered safe for use, but is not on by default, even if the
+	 * kernel supports the feature.
+	 */
+	const char *safe_str;
+	u32 safe_ver;
+	/*
+	 * Considered safe for use and will be turned on by default if
+	 * supported by the running kernel.
+	 */
+	const char *default_str;
+	u32 default_ver;
+	const char *desc;
+};
+
 static const struct btrfs_mkfs_features btrfs_mkfs_default_features = {
 	.compat_ro_flags = BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE |
 			   BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID,