litmus-rt.git - The LITMUS^RT kernel.

The LITMUS^RT kernel.

Bjoern Brandenburg

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author	Heiko Carstens <heiko.carstens@de.ibm.com>	2010-01-13 14:44:34 -0500
committer	Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>	2010-01-13 14:44:45 -0500
commit	02beaccc901b7a28ac1de79f3ed122f5fda220b1 (patch)
tree	77c36cd14b9ce1324ff6127a4bdb19e312fef7e2 /fs/btrfs/ctree.c
parent	a58c26bba9ebe97fea99aee125728b1f3886499e (diff)

[S390] smp: setup smp_processor_id early

smp_processor_id() is supposed to work before setup_arch() gets called. Before that smp_processor_id() may return just an arbitrary value that is contained in the uninitialized boot lowcore. So provide the arch function which will override the weak function in init/main.c. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

Diffstat (limited to 'fs/btrfs/ctree.c')

0 files changed, 0 insertions, 0 deletions

n class="hl ppc">, __FILE__, __LINE__, pte_val(e)) #define pmd_ERROR(e) \ printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e)) #define pgd_ERROR(e) \ printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) /* * The "pgd_xxx()" functions here are trivial for a folded two-level * setup: the pgd is never bad, and a pmd always exists (as it's folded * into the pgd entry) */ static inline int pgd_none(pgd_t pgd) { return 0; } static inline int pgd_bad(pgd_t pgd) { return 0; } static inline int pgd_present(pgd_t pgd) { return 1; } #define pgd_clear(xp) do { } while (0) /* * Certain architectures need to do special things when PTEs * within a page table are directly modified. Thus, the following * hook is made available. */ #define set_pte(pteptr, pteval) (*(pteptr) = pteval) #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) /* * (pmds are folded into pgds so this doesn't get actually called, * but the define is needed for a generic inline function.) */ #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) #define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval) #define pgd_page_vaddr(pgd) \ ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK)) #ifndef CONFIG_DISCONTIGMEM #define pgd_page(pgd) (mem_map + ((pgd_val(pgd) >> PAGE_SHIFT) - PFN_BASE)) #endif /* !CONFIG_DISCONTIGMEM */ static inline pmd_t *pmd_offset(pgd_t * dir, unsigned long address) { return (pmd_t *) dir; } #define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte, 0)) #define pte_same(a, b) (pte_val(a) == pte_val(b)) #define pte_page(x) pfn_to_page(pte_pfn(x)) #define pte_none(x) (!pte_val(x)) #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT) #define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) #define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) #define PTE_FILE_MAX_BITS 29 #define pte_to_pgoff(pte) (((pte_val(pte) >> 2) & 0x7f) | (((pte_val(pte) >> 10)) << 7)) #define pgoff_to_pte(off) ((pte_t) { (((off) & 0x7f) << 2) | (((off) >> 7) << 10) | _PAGE_FILE }) #endif /* __KERNEL__ */ #endif /* _ASM_M32R_PGTABLE_2LEVEL_H */


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