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    Subject[RFC] Cleanup line-wrapping in pgtable.h
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    Date
    The line-wrapping in most of the include/asm/pgtable.h pte test/set
    macros looks horrible in my 80 column terminal. The following "test the
    waters" patch is how I would like to see them laid out. I realize that
    the braces don't adhere to CodingStyle but the advantage is (when taking
    wrapping into account) that the code takes up no additional space. How
    do people feel about making this change? Any better suggestions? I
    personally wouldn't like a lone closing brace like normal functions
    because of the extra lines eaten. I volunteer to patch up the other
    architectures if we reach a consensus.

    Signed-off-by: Adam Litke <agl@us.ibm.com>

    pgtable.h | 51 ++++++++++++++++++++++++++++++++++-----------------
    1 files changed, 34 insertions(+), 17 deletions(-)
    diff -upN reference/include/asm-i386/pgtable.h current/include/asm-i386/pgtable.h
    --- reference/include/asm-i386/pgtable.h
    +++ current/include/asm-i386/pgtable.h
    @@ -215,28 +215,45 @@ extern unsigned long pg0[];
    * The following only work if pte_present() is true.
    * Undefined behaviour if not..
    */
    -static inline int pte_user(pte_t pte) { return (pte).pte_low & _PAGE_USER; }
    -static inline int pte_read(pte_t pte) { return (pte).pte_low & _PAGE_USER; }
    -static inline int pte_dirty(pte_t pte) { return (pte).pte_low & _PAGE_DIRTY; }
    -static inline int pte_young(pte_t pte) { return (pte).pte_low & _PAGE_ACCESSED; }
    -static inline int pte_write(pte_t pte) { return (pte).pte_low & _PAGE_RW; }
    +static inline int pte_user(pte_t pte)
    + { return (pte).pte_low & _PAGE_USER; }
    +static inline int pte_read(pte_t pte)
    + { return (pte).pte_low & _PAGE_USER; }
    +static inline int pte_dirty(pte_t pte)
    + { return (pte).pte_low & _PAGE_DIRTY; }
    +static inline int pte_young(pte_t pte)
    + { return (pte).pte_low & _PAGE_ACCESSED; }
    +static inline int pte_write(pte_t pte)
    + { return (pte).pte_low & _PAGE_RW; }

    /*
    * The following only works if pte_present() is not true.
    */
    -static inline int pte_file(pte_t pte) { return (pte).pte_low & _PAGE_FILE; }
    +static inline int pte_file(pte_t pte)
    + { return (pte).pte_low & _PAGE_FILE; }

    -static inline pte_t pte_rdprotect(pte_t pte) { (pte).pte_low &= ~_PAGE_USER; return pte; }
    -static inline pte_t pte_exprotect(pte_t pte) { (pte).pte_low &= ~_PAGE_USER; return pte; }
    -static inline pte_t pte_mkclean(pte_t pte) { (pte).pte_low &= ~_PAGE_DIRTY; return pte; }
    -static inline pte_t pte_mkold(pte_t pte) { (pte).pte_low &= ~_PAGE_ACCESSED; return pte; }
    -static inline pte_t pte_wrprotect(pte_t pte) { (pte).pte_low &= ~_PAGE_RW; return pte; }
    -static inline pte_t pte_mkread(pte_t pte) { (pte).pte_low |= _PAGE_USER; return pte; }
    -static inline pte_t pte_mkexec(pte_t pte) { (pte).pte_low |= _PAGE_USER; return pte; }
    -static inline pte_t pte_mkdirty(pte_t pte) { (pte).pte_low |= _PAGE_DIRTY; return pte; }
    -static inline pte_t pte_mkyoung(pte_t pte) { (pte).pte_low |= _PAGE_ACCESSED; return pte; }
    -static inline pte_t pte_mkwrite(pte_t pte) { (pte).pte_low |= _PAGE_RW; return pte; }
    -static inline pte_t pte_mkhuge(pte_t pte) { (pte).pte_low |= _PAGE_PRESENT | _PAGE_PSE; return pte; }
    +static inline pte_t pte_rdprotect(pte_t pte)
    + { (pte).pte_low &= ~_PAGE_USER; return pte; }
    +static inline pte_t pte_exprotect(pte_t pte)
    + { (pte).pte_low &= ~_PAGE_USER; return pte; }
    +static inline pte_t pte_mkclean(pte_t pte)
    + { (pte).pte_low &= ~_PAGE_DIRTY; return pte; }
    +static inline pte_t pte_mkold(pte_t pte)
    + { (pte).pte_low &= ~_PAGE_ACCESSED; return pte; }
    +static inline pte_t pte_wrprotect(pte_t pte)
    + { (pte).pte_low &= ~_PAGE_RW; return pte; }
    +static inline pte_t pte_mkread(pte_t pte)
    + { (pte).pte_low |= _PAGE_USER; return pte; }
    +static inline pte_t pte_mkexec(pte_t pte)
    + { (pte).pte_low |= _PAGE_USER; return pte; }
    +static inline pte_t pte_mkdirty(pte_t pte)
    + { (pte).pte_low |= _PAGE_DIRTY; return pte; }
    +static inline pte_t pte_mkyoung(pte_t pte)
    + { (pte).pte_low |= _PAGE_ACCESSED; return pte; }
    +static inline pte_t pte_mkwrite(pte_t pte)
    + { (pte).pte_low |= _PAGE_RW; return pte; }
    +static inline pte_t pte_mkhuge(pte_t pte)
    + { (pte).pte_low |= _PAGE_PRESENT | _PAGE_PSE; return pte; }

    #ifdef CONFIG_X86_PAE
    # include <asm/pgtable-3level.h>

    -
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