diff mbox series

[v4,1/2] ext4: add helpers for checking whether quota can be enabled/is journalled

Message ID 1603336860-16153-1-git-send-email-dotdot@yandex-team.ru
State New
Headers show
Series [v4,1/2] ext4: add helpers for checking whether quota can be enabled/is journalled | expand

Commit Message

Roman Anufriev Oct. 22, 2020, 3:20 a.m. UTC
Right now, there are several places, where we check whether fs is
capable of enabling quota or if quota is journalled with quite long
and non-self-descriptive condition statements.

This patch wraps these statements into helpers for better readability
and easier usage.

Signed-off-by: Roman Anufriev <dotdot@yandex-team.ru>
---
 fs/ext4/ext4.h      | 15 +++++++++++++++
 fs/ext4/ext4_jbd2.h |  9 +++------
 fs/ext4/super.c     |  5 +----
 3 files changed, 19 insertions(+), 10 deletions(-)

Comments

Jan Kara Oct. 23, 2020, 3:47 p.m. UTC | #1
On Thu 22-10-20 06:20:59, Roman Anufriev wrote:
> Right now, there are several places, where we check whether fs is
> capable of enabling quota or if quota is journalled with quite long
> and non-self-descriptive condition statements.
> 
> This patch wraps these statements into helpers for better readability
> and easier usage.
> 
> Signed-off-by: Roman Anufriev <dotdot@yandex-team.ru>

Looks good to me. You can add:

Reviewed-by: Jan Kara <jack@suse.cz>

								Honza

> ---
>  fs/ext4/ext4.h      | 15 +++++++++++++++
>  fs/ext4/ext4_jbd2.h |  9 +++------
>  fs/ext4/super.c     |  5 +----
>  3 files changed, 19 insertions(+), 10 deletions(-)
> 
> diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
> index 250e905..897df24 100644
> --- a/fs/ext4/ext4.h
> +++ b/fs/ext4/ext4.h
> @@ -3251,6 +3251,21 @@ static inline void ext4_unlock_group(struct super_block *sb,
>  	spin_unlock(ext4_group_lock_ptr(sb, group));
>  }
>  
> +#ifdef CONFIG_QUOTA
> +static inline bool ext4_quota_capable(struct super_block *sb)
> +{
> +	return (test_opt(sb, QUOTA) || ext4_has_feature_quota(sb));
> +}
> +
> +static inline bool ext4_is_quota_journalled(struct super_block *sb)
> +{
> +	struct ext4_sb_info *sbi = EXT4_SB(sb);
> +
> +	return (ext4_has_feature_quota(sb) ||
> +		sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]);
> +}
> +#endif
> +
>  /*
>   * Block validity checking
>   */
> diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
> index 00dc668..a124c68 100644
> --- a/fs/ext4/ext4_jbd2.h
> +++ b/fs/ext4/ext4_jbd2.h
> @@ -86,17 +86,14 @@
>  #ifdef CONFIG_QUOTA
>  /* Amount of blocks needed for quota update - we know that the structure was
>   * allocated so we need to update only data block */
> -#define EXT4_QUOTA_TRANS_BLOCKS(sb) ((test_opt(sb, QUOTA) ||\
> -		ext4_has_feature_quota(sb)) ? 1 : 0)
> +#define EXT4_QUOTA_TRANS_BLOCKS(sb) ((ext4_quota_capable(sb)) ? 1 : 0)
>  /* Amount of blocks needed for quota insert/delete - we do some block writes
>   * but inode, sb and group updates are done only once */
> -#define EXT4_QUOTA_INIT_BLOCKS(sb) ((test_opt(sb, QUOTA) ||\
> -		ext4_has_feature_quota(sb)) ?\
> +#define EXT4_QUOTA_INIT_BLOCKS(sb) ((ext4_quota_capable(sb)) ?\
>  		(DQUOT_INIT_ALLOC*(EXT4_SINGLEDATA_TRANS_BLOCKS(sb)-3)\
>  		 +3+DQUOT_INIT_REWRITE) : 0)
>  
> -#define EXT4_QUOTA_DEL_BLOCKS(sb) ((test_opt(sb, QUOTA) ||\
> -		ext4_has_feature_quota(sb)) ?\
> +#define EXT4_QUOTA_DEL_BLOCKS(sb) ((ext4_quota_capable(sb)) ?\
>  		(DQUOT_DEL_ALLOC*(EXT4_SINGLEDATA_TRANS_BLOCKS(sb)-3)\
>  		 +3+DQUOT_DEL_REWRITE) : 0)
>  #else
> diff --git a/fs/ext4/super.c b/fs/ext4/super.c
> index 9d01318..a988cf3 100644
> --- a/fs/ext4/super.c
> +++ b/fs/ext4/super.c
> @@ -6158,11 +6158,8 @@ static int ext4_release_dquot(struct dquot *dquot)
>  static int ext4_mark_dquot_dirty(struct dquot *dquot)
>  {
>  	struct super_block *sb = dquot->dq_sb;
> -	struct ext4_sb_info *sbi = EXT4_SB(sb);
>  
> -	/* Are we journaling quotas? */
> -	if (ext4_has_feature_quota(sb) ||
> -	    sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
> +	if (ext4_is_quota_journalled(sb)) {
>  		dquot_mark_dquot_dirty(dquot);
>  		return ext4_write_dquot(dquot);
>  	} else {
> -- 
> 2.7.4
>
diff mbox series

Patch

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 250e905..897df24 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -3251,6 +3251,21 @@  static inline void ext4_unlock_group(struct super_block *sb,
 	spin_unlock(ext4_group_lock_ptr(sb, group));
 }
 
+#ifdef CONFIG_QUOTA
+static inline bool ext4_quota_capable(struct super_block *sb)
+{
+	return (test_opt(sb, QUOTA) || ext4_has_feature_quota(sb));
+}
+
+static inline bool ext4_is_quota_journalled(struct super_block *sb)
+{
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
+
+	return (ext4_has_feature_quota(sb) ||
+		sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]);
+}
+#endif
+
 /*
  * Block validity checking
  */
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index 00dc668..a124c68 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -86,17 +86,14 @@ 
 #ifdef CONFIG_QUOTA
 /* Amount of blocks needed for quota update - we know that the structure was
  * allocated so we need to update only data block */
-#define EXT4_QUOTA_TRANS_BLOCKS(sb) ((test_opt(sb, QUOTA) ||\
-		ext4_has_feature_quota(sb)) ? 1 : 0)
+#define EXT4_QUOTA_TRANS_BLOCKS(sb) ((ext4_quota_capable(sb)) ? 1 : 0)
 /* Amount of blocks needed for quota insert/delete - we do some block writes
  * but inode, sb and group updates are done only once */
-#define EXT4_QUOTA_INIT_BLOCKS(sb) ((test_opt(sb, QUOTA) ||\
-		ext4_has_feature_quota(sb)) ?\
+#define EXT4_QUOTA_INIT_BLOCKS(sb) ((ext4_quota_capable(sb)) ?\
 		(DQUOT_INIT_ALLOC*(EXT4_SINGLEDATA_TRANS_BLOCKS(sb)-3)\
 		 +3+DQUOT_INIT_REWRITE) : 0)
 
-#define EXT4_QUOTA_DEL_BLOCKS(sb) ((test_opt(sb, QUOTA) ||\
-		ext4_has_feature_quota(sb)) ?\
+#define EXT4_QUOTA_DEL_BLOCKS(sb) ((ext4_quota_capable(sb)) ?\
 		(DQUOT_DEL_ALLOC*(EXT4_SINGLEDATA_TRANS_BLOCKS(sb)-3)\
 		 +3+DQUOT_DEL_REWRITE) : 0)
 #else
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 9d01318..a988cf3 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -6158,11 +6158,8 @@  static int ext4_release_dquot(struct dquot *dquot)
 static int ext4_mark_dquot_dirty(struct dquot *dquot)
 {
 	struct super_block *sb = dquot->dq_sb;
-	struct ext4_sb_info *sbi = EXT4_SB(sb);
 
-	/* Are we journaling quotas? */
-	if (ext4_has_feature_quota(sb) ||
-	    sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
+	if (ext4_is_quota_journalled(sb)) {
 		dquot_mark_dquot_dirty(dquot);
 		return ext4_write_dquot(dquot);
 	} else {