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Date: Fri, 5 Aug 2016 13:05:15 +0200
From: Jan Kara <jack@...e.cz>
To: Kaho Ng <ngkaho1234@...il.com>
Cc: tytso@....edu, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] ext4: remove old feature helpers
On Thu 28-07-16 01:51:40, Kaho Ng wrote:
> Use the ext4_{has,set,clear}_feature_* helpers to replace the old
> feature helpers.
>
> Signed-off-by: Kaho Ng <ngkaho1234@...il.com>
Thanks. The patch looks good! You can add:
Reviewed-by: Jan Kara <jack@...e.cz>
Honza
> ---
> fs/ext4/ext4.h | 20 --------------------
> fs/ext4/ialloc.c | 2 +-
> fs/ext4/inode.c | 7 +++----
> fs/ext4/ioctl.c | 6 ++----
> 4 files changed, 6 insertions(+), 29 deletions(-)
>
> diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
> index ea31931..81a298c 100644
> --- a/fs/ext4/ext4.h
> +++ b/fs/ext4/ext4.h
> @@ -1636,26 +1636,6 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
> * Feature set definitions
> */
>
> -/* Use the ext4_{has,set,clear}_feature_* helpers; these will be removed */
> -#define EXT4_HAS_COMPAT_FEATURE(sb,mask) \
> - ((EXT4_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask)) != 0)
> -#define EXT4_HAS_RO_COMPAT_FEATURE(sb,mask) \
> - ((EXT4_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask)) != 0)
> -#define EXT4_HAS_INCOMPAT_FEATURE(sb,mask) \
> - ((EXT4_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask)) != 0)
> -#define EXT4_SET_COMPAT_FEATURE(sb,mask) \
> - EXT4_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
> -#define EXT4_SET_RO_COMPAT_FEATURE(sb,mask) \
> - EXT4_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
> -#define EXT4_SET_INCOMPAT_FEATURE(sb,mask) \
> - EXT4_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
> -#define EXT4_CLEAR_COMPAT_FEATURE(sb,mask) \
> - EXT4_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
> -#define EXT4_CLEAR_RO_COMPAT_FEATURE(sb,mask) \
> - EXT4_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
> -#define EXT4_CLEAR_INCOMPAT_FEATURE(sb,mask) \
> - EXT4_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
> -
> #define EXT4_FEATURE_COMPAT_DIR_PREALLOC 0x0001
> #define EXT4_FEATURE_COMPAT_IMAGIC_INODES 0x0002
> #define EXT4_FEATURE_COMPAT_HAS_JOURNAL 0x0004
> diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
> index 9e66cd1..170421e 100644
> --- a/fs/ext4/ialloc.c
> +++ b/fs/ext4/ialloc.c
> @@ -802,7 +802,7 @@ struct inode *__ext4_new_inode(handle_t *handle, struct inode *dir,
> } else
> inode_init_owner(inode, dir, mode);
>
> - if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_PROJECT) &&
> + if (ext4_has_feature_project(sb) &&
> ext4_test_inode_flag(dir, EXT4_INODE_PROJINHERIT))
> ei->i_projid = EXT4_I(dir)->i_projid;
> else
> diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
> index 3131747..3265dc8 100644
> --- a/fs/ext4/inode.c
> +++ b/fs/ext4/inode.c
> @@ -4414,7 +4414,7 @@ static inline void ext4_iget_extra_inode(struct inode *inode,
>
> int ext4_get_projid(struct inode *inode, kprojid_t *projid)
> {
> - if (!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb, EXT4_FEATURE_RO_COMPAT_PROJECT))
> + if (!ext4_has_feature_project(inode->i_sb))
> return -EOPNOTSUPP;
> *projid = EXT4_I(inode)->i_projid;
> return 0;
> @@ -4481,7 +4481,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
> inode->i_mode = le16_to_cpu(raw_inode->i_mode);
> i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
> i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
> - if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_PROJECT) &&
> + if (ext4_has_feature_project(sb) &&
> EXT4_INODE_SIZE(sb) > EXT4_GOOD_OLD_INODE_SIZE &&
> EXT4_FITS_IN_INODE(raw_inode, ei, i_projid))
> i_projid = (projid_t)le32_to_cpu(raw_inode->i_projid);
> @@ -4885,8 +4885,7 @@ static int ext4_do_update_inode(handle_t *handle,
> }
> }
>
> - BUG_ON(!EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
> - EXT4_FEATURE_RO_COMPAT_PROJECT) &&
> + BUG_ON(!ext4_has_feature_project(inode->i_sb) &&
> i_projid != EXT4_DEF_PROJID);
>
> if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
> diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
> index 10686fd..ef4430b 100644
> --- a/fs/ext4/ioctl.c
> +++ b/fs/ext4/ioctl.c
> @@ -310,8 +310,7 @@ static int ext4_ioctl_setproject(struct file *filp, __u32 projid)
> struct ext4_inode *raw_inode;
> struct dquot *transfer_to[MAXQUOTAS] = { };
>
> - if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
> - EXT4_FEATURE_RO_COMPAT_PROJECT)) {
> + if (!ext4_has_feature_project(sb)) {
> if (projid != EXT4_DEF_PROJID)
> return -EOPNOTSUPP;
> else
> @@ -842,8 +841,7 @@ resizefs_out:
> ext4_get_inode_flags(ei);
> fa.fsx_xflags = ext4_iflags_to_xflags(ei->i_flags & EXT4_FL_USER_VISIBLE);
>
> - if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
> - EXT4_FEATURE_RO_COMPAT_PROJECT)) {
> + if (ext4_has_feature_project(inode->i_sb)) {
> fa.fsx_projid = (__u32)from_kprojid(&init_user_ns,
> EXT4_I(inode)->i_projid);
> }
> --
> 2.9.0
>
> --
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--
Jan Kara <jack@...e.com>
SUSE Labs, CR
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