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    Subject[PATCH V5 11/12] fs/xfs: Remove xfs_diflags_to_linux()
    Date
    From: Ira Weiny <ira.weiny@intel.com>

    The functionality in xfs_diflags_to_linux() is now identical to
    xfs_diflags_to_iflags().

    Remove xfs_diflags_to_linux() and call xfs_diflags_to_iflags() directly.

    While we are here simplify xfs_diflags_to_iflags() to take just struct
    xfs_inode.

    And use xfs_ip2xflags() to ensure future diflags are included correctly.

    Signed-off-by: kbuild test robot <lkp@intel.com>
    Signed-off-by: Ira Weiny <ira.weiny@intel.com>

    ---
    Changes from V4:
    Pick up lkp build suggestion (make xfs_inode_enable_dax() static)
    ---
    fs/xfs/xfs_inode.h | 2 +-
    fs/xfs/xfs_ioctl.c | 32 +-------------------------------
    fs/xfs/xfs_iops.c | 31 +++++++++++++++++++------------
    3 files changed, 21 insertions(+), 44 deletions(-)

    diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
    index 7d4968915dec..2c8c2804f88b 100644
    --- a/fs/xfs/xfs_inode.h
    +++ b/fs/xfs/xfs_inode.h
    @@ -467,7 +467,7 @@ int xfs_break_layouts(struct inode *inode, uint *iolock,
    extern void xfs_setup_inode(struct xfs_inode *ip);
    extern void xfs_setup_iops(struct xfs_inode *ip);
    extern void xfs_setup_a_ops(struct xfs_inode *ip);
    -extern bool xfs_inode_enable_dax(struct xfs_inode *ip);
    +extern void xfs_diflags_to_iflags(struct xfs_inode *ip);

    /*
    * When setting up a newly allocated inode, we need to call
    diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
    index 38e91de44a6f..bd67359a3251 100644
    --- a/fs/xfs/xfs_ioctl.c
    +++ b/fs/xfs/xfs_ioctl.c
    @@ -1100,36 +1100,6 @@ xfs_flags2diflags2(
    return di_flags2;
    }

    -STATIC void
    -xfs_diflags_to_linux(
    - struct xfs_inode *ip)
    -{
    - struct inode *inode = VFS_I(ip);
    - unsigned int xflags = xfs_ip2xflags(ip);
    -
    - if (xflags & FS_XFLAG_IMMUTABLE)
    - inode->i_flags |= S_IMMUTABLE;
    - else
    - inode->i_flags &= ~S_IMMUTABLE;
    - if (xflags & FS_XFLAG_APPEND)
    - inode->i_flags |= S_APPEND;
    - else
    - inode->i_flags &= ~S_APPEND;
    - if (xflags & FS_XFLAG_SYNC)
    - inode->i_flags |= S_SYNC;
    - else
    - inode->i_flags &= ~S_SYNC;
    - if (xflags & FS_XFLAG_NOATIME)
    - inode->i_flags |= S_NOATIME;
    - else
    - inode->i_flags &= ~S_NOATIME;
    -
    - if (xfs_inode_enable_dax(ip))
    - inode->i_flags |= S_DAX;
    - else
    - inode->i_flags &= ~S_DAX;
    -}
    -
    static int
    xfs_ioctl_setattr_xflags(
    struct xfs_trans *tp,
    @@ -1167,7 +1137,7 @@ xfs_ioctl_setattr_xflags(
    ip->i_d.di_flags = xfs_flags2diflags(ip, fa->fsx_xflags);
    ip->i_d.di_flags2 = di_flags2;

    - xfs_diflags_to_linux(ip);
    + xfs_diflags_to_iflags(ip);
    xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
    xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
    XFS_STATS_INC(mp, xs_ig_attrchg);
    diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
    index 8f023be39705..c63cf0b73b75 100644
    --- a/fs/xfs/xfs_iops.c
    +++ b/fs/xfs/xfs_iops.c
    @@ -1259,7 +1259,7 @@ xfs_inode_supports_dax(
    return xfs_inode_buftarg(ip)->bt_daxdev != NULL;
    }

    -bool
    +static bool
    xfs_inode_enable_dax(
    struct xfs_inode *ip)
    {
    @@ -1273,26 +1273,33 @@ xfs_inode_enable_dax(
    return false;
    }

    -STATIC void
    +void
    xfs_diflags_to_iflags(
    - struct inode *inode,
    struct xfs_inode *ip)
    {
    - uint16_t flags = ip->i_d.di_flags;
    -
    - inode->i_flags &= ~(S_IMMUTABLE | S_APPEND | S_SYNC |
    - S_NOATIME | S_DAX);
    + struct inode *inode = VFS_I(ip);
    + uint16_t diflags = xfs_ip2xflags(ip);

    - if (flags & XFS_DIFLAG_IMMUTABLE)
    + if (diflags & FS_XFLAG_IMMUTABLE)
    inode->i_flags |= S_IMMUTABLE;
    - if (flags & XFS_DIFLAG_APPEND)
    + else
    + inode->i_flags &= ~S_IMMUTABLE;
    + if (diflags & FS_XFLAG_APPEND)
    inode->i_flags |= S_APPEND;
    - if (flags & XFS_DIFLAG_SYNC)
    + else
    + inode->i_flags &= ~S_APPEND;
    + if (diflags & FS_XFLAG_SYNC)
    inode->i_flags |= S_SYNC;
    - if (flags & XFS_DIFLAG_NOATIME)
    + else
    + inode->i_flags &= ~S_SYNC;
    + if (diflags & FS_XFLAG_NOATIME)
    inode->i_flags |= S_NOATIME;
    + else
    + inode->i_flags &= ~S_NOATIME;
    if (xfs_inode_enable_dax(ip))
    inode->i_flags |= S_DAX;
    + else
    + inode->i_flags &= ~S_DAX;
    }

    /*
    @@ -1321,7 +1328,7 @@ xfs_setup_inode(
    inode->i_gid = xfs_gid_to_kgid(ip->i_d.di_gid);

    i_size_write(inode, ip->i_d.di_size);
    - xfs_diflags_to_iflags(inode, ip);
    + xfs_diflags_to_iflags(ip);

    if (S_ISDIR(inode->i_mode)) {
    /*
    --
    2.21.0
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