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    SubjectRe: [PATCH] linux/magic.h for magic numbers
    Ian Kent wrote:
    > On Sat, 9 Sep 2006, Jeff Garzik wrote:
    >> An IRC discussion sparked a memory: most filesystems really don't
    >> need to put anything at all in include/linux. Excluding API-ish
    >> filesystems like procfs, just about the only filesystem symbols that
    >> get exported outside of __KERNEL__ are the *_SUPER_MAGIC symbols,
    >> and similar symbols.
    >> After seeing the useful attributes of linux/poison.h, I propose a
    >> similar linux/magic.h.
    >> We can see from the patch below that this permitted the deletion of a
    >> couple headers, where the *_SUPER_MAGIC symbol was the only thing in the
    >> entire header.
    >> Other non-filesystem-related magic numbers could get moved here
    >> eventually, if maintainers so desire, but I wanted to start off with the
    >> obvious low-hanging fruit.
    > Would be good to include autofs in this lot.
    > Defined in linux/autofs/autofs_i.h
    > Defined in linux/autofs4/autofs_i.h
    > as
    > #define AUTOFS_SUPER_MAGIC 0x0187


    Andrew, please add the "magic" branch of

    to the list of trees you pull.



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