• Cheng Renquan's avatar
    md: use list_for_each_entry macro directly · 159ec1fc
    Cheng Renquan authored
    The rdev_for_each macro defined in <linux/raid/md_k.h> is identical to
    list_for_each_entry_safe, from <linux/list.h>, it should be defined to
    use list_for_each_entry_safe, instead of reinventing the wheel.
    
    But some calls to each_entry_safe don't really need a safe version,
    just a direct list_for_each_entry is enough, this could save a temp
    variable (tmp) in every function that used rdev_for_each.
    
    In this patch, most rdev_for_each loops are replaced by list_for_each_entry,
    totally save many tmp vars; and only in the other situations that will call
    list_del to delete an entry, the safe version is used.
    Signed-off-by: default avatarCheng Renquan <crquan@gmail.com>
    Signed-off-by: default avatarNeilBrown <neilb@suse.de>
    159ec1fc
multipath.c 14.3 KB