search for: spin_lock_nest

Displaying 5 results from an estimated 5 matches for "spin_lock_nest".

Did you mean: spin_lock_nested
2011 Sep 01
3
DOM0 Hang on a large box....
..._acquires(this_rq->lock) { int ret = 0; if (unlikely(!spin_trylock(&busiest->lock))) { if (busiest < this_rq) { spin_unlock(&this_rq->lock); spin_lock(&busiest->lock); spin_lock_nested(&this_rq->lock, SINGLE_DEPTH_NESTING); ret = 1; } else spin_lock_nested(&busiest->lock, SINGLE_DEPTH_NESTING); } return ret; } The lock is taken, but not sure who the owner is. The lock struct: @ ffff...
2007 Apr 18
0
[PATCH 3/9] 00mm3 lazy mmu mode hooks.patch
...no * vma end wraps to 0, rounded up __boundary may wrap to 0 throughout. =================================================================== --- a/mm/memory.c +++ b/mm/memory.c @@ -506,6 +506,7 @@ again: src_pte = pte_offset_map_nested(src_pmd, addr); src_ptl = pte_lockptr(src_mm, src_pmd); spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING); + arch_enter_lazy_mmu_mode(); do { /* @@ -527,6 +528,7 @@ again: progress += 8; } while (dst_pte++, src_pte++, addr += PAGE_SIZE, addr != end); + arch_leave_lazy_mmu_mode(); spin_unlock(src_ptl); pte_unmap_nested(src_pte - 1); add_mm_rss(dst_mm,...
2007 Apr 18
15
[PATCH 0 of 13] Basic infrastructure patches for a paravirtualized kernel
[ REPOST: Apologies to anyone who has seen this before. It didn't make it onto any of the lists it should have. -J ] Hi Andrew, This series of patches lays the basic ground work for the paravirtualized kernel patches coming later on. I think this lot is ready for the rough-and-tumble world of the -mm tree. For the most part, these patches do nothing or very little. The patches should
2007 Apr 18
15
[PATCH 0 of 13] Basic infrastructure patches for a paravirtualized kernel
[ REPOST: Apologies to anyone who has seen this before. It didn't make it onto any of the lists it should have. -J ] Hi Andrew, This series of patches lays the basic ground work for the paravirtualized kernel patches coming later on. I think this lot is ready for the rough-and-tumble world of the -mm tree. For the most part, these patches do nothing or very little. The patches should
2006 Jul 25
18
[PATCH] turn off writable page tables
At OLS I gave a talk on some of the Xen scalability inhibitors, and one of these was writable page tables. We went over why the feature does not scale, but just as important, we found that the uniprocessor case does not provide any advantage either. These tests were done on x86_64, so I wanted to run the 1-way test on 32 bit to show the same problem. So, I have run with writable PTs and