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    fs: xfs: libxfs: constify xfs_nameops structures · cf7841c1
    Bhumika Goyal 提交于
    Declare the structure xfs_nameops as const as it is only stored in the
    m_dirnameops field of a xfs_mount structure. This field is of type
    const struct xfs_nameops *, so xfs_nameops structures having this
    property can be declared as const.
    Done using Coccinelle:
    @r1 disable optional_qualifier @
    identifier i;
    position p;
    @@
    static struct xfs_nameops i@p = {...};
    
    @ok1@
    identifier r1.i;
    position p;
    struct xfs_mount mp;
    @@
    mp.m_dirnameops=&i@p
    
    @bad@
    position p!={r1.p,ok1.p};
    identifier r1.i;
    @@
    i@p
    
    @depends on !bad disable optional_qualifier@
    identifier r1.i;
    @@
    static
    +const
    struct xfs_nameops i={...};
    
    @depends on !bad disable optional_qualifier@
    identifier r1.i;
    @@
    +const
    struct xfs_nameops i;
    
    File size before:
       text	   data	    bss	    dec	    hex	filename
       5302	     85	      0	   5387	   150b	fs/xfs/libxfs/xfs_dir2.o
    
    File size after:
       text	   data	    bss	    dec	    hex	filename
       5318	     69	      0	   5387	   150b	fs/xfs/libxfs/xfs_dir2.o
    Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
    Reviewed-by: NDave Chinner <dchinner@redhat.com>
    Signed-off-by: NDave Chinner <david@fromorbit.com>
    
    cf7841c1
xfs_dir2.c 17.7 KB