#ifndef _XEN_PAGE_H #define _XEN_PAGE_H #include /* The hypercall interface supports only 4KB page */ #define XEN_PAGE_SHIFT 12 #define XEN_PAGE_SIZE (_AC(1, UL) << XEN_PAGE_SHIFT) #define XEN_PAGE_MASK (~(XEN_PAGE_SIZE-1)) #define xen_offset_in_page(p) ((unsigned long)(p) & ~XEN_PAGE_MASK) /* * We assume that PAGE_SIZE is a multiple of XEN_PAGE_SIZE * XXX: Add a BUILD_BUG_ON? */ #define xen_pfn_to_page(xen_pfn) \ (pfn_to_page((unsigned long)(xen_pfn) >> (PAGE_SHIFT - XEN_PAGE_SHIFT))) #define page_to_xen_pfn(page) \ ((page_to_pfn(page)) << (PAGE_SHIFT - XEN_PAGE_SHIFT)) #define XEN_PFN_PER_PAGE (PAGE_SIZE / XEN_PAGE_SIZE) #define XEN_PFN_DOWN(x) ((x) >> XEN_PAGE_SHIFT) #define XEN_PFN_UP(x) (((x) + XEN_PAGE_SIZE-1) >> XEN_PAGE_SHIFT) #define XEN_PFN_PHYS(x) ((phys_addr_t)(x) << XEN_PAGE_SHIFT) #include /* Return the GFN associated to the first 4KB of the page */ static inline unsigned long xen_page_to_gfn(struct page *page) { return pfn_to_gfn(page_to_xen_pfn(page)); } struct xen_memory_region { unsigned long start_pfn; unsigned long n_pfns; }; #define XEN_EXTRA_MEM_MAX_REGIONS 128 /* == E820MAX */ extern __initdata struct xen_memory_region xen_extra_mem[XEN_EXTRA_MEM_MAX_REGIONS]; extern unsigned long xen_released_pages; #endif /* _XEN_PAGE_H */ >packet-rx-pump-back net-next plumbingsTobias Klauser
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authorKalle Valo <kvalo@codeaurora.org>2017-01-27 14:19:25 +0200
committerKalle Valo <kvalo@codeaurora.org>2017-01-28 09:15:50 +0200
commit2b1d530cb3157f828fcaadd259613f59db3c6d1c (patch)
treefb5dfe8f2e6956f54377c7275f330cd158ead259 /net/switchdev/Makefile
parentbd19b5ab1da654de456e102250822ec06311d6ad (diff)
MAINTAINERS: ath9k-devel is closed
ath9k-devel list is now closed, only linux-wireless should be used. Reported-by: Michael Renzmann <mrenzmann@madwifi-project.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'net/switchdev/Makefile')
subject'>Merge branch 'sparc64-non-resumable-user-error-recovery'
Liam R. Howlett says: ==================== sparc64: Recover from userspace non-resumable PIO & MEM errors A non-resumable error from userspace is able to cause a kernel panic or trap loop due to the setup and handling of the queued traps once in the kernel. This patch series addresses both of these issues. The queues are fixed by simply zeroing the memory before use. PIO errors from userspace will result in a SIGBUS being sent to the user process. The MEM errors form userspace will result in a SIGKILL and also cause the offending pages to be claimed so they are no longer used in future tasks. SIGKILL is used to ensure that the process does not try to coredump and result in an attempt to read the memory again from within kernel space. Although there is a HV call to scrub the memory (mem_scrub), there is no easy way to guarantee that the real memory address(es) are not used by other tasks. Clearing the error with mem_scrub would zero the memory and cause the other processes to proceed with bad data. The handling of other non-resumable errors remain unchanged and will cause a panic. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_multicast.c')