mirror of https://gitee.com/openkylin/linux.git
b462705ac6
Convert those few architectures which are calling pud_alloc, pmd_alloc, pte_alloc_map on a user mm, not to take the page_table_lock first, nor drop it after. Each of these can continue to use pte_alloc_map, no need to change over to pte_alloc_map_lock, they're neither racy nor swappable. In the sparc64 io_remap_pfn_range, flush_tlb_range then falls outside of the page_table_lock: that's okay, on sparc64 it's like flush_tlb_mm, and that has always been called from outside of page_table_lock in dup_mmap. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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| .. | ||
| boot | ||
| kernel | ||
| lib | ||
| machine | ||
| mm | ||
| nwfpe | ||
| ACKNOWLEDGEMENTS | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||
| defconfig | ||