David Gibson 79ac6ba40e [PATCH] hugepage: Small fixes to hugepage clear/copy path ... Move the loops used in mm/hugetlb.c to clear and copy hugepages to their own functions for clarity. As we do so, we add some checks of need_resched - we are, after all copying megabytes of memory here. We also add might_sleep() accordingly. We generally dropped locks around the clear and copy, already but not everyone has PREEMPT enabled, so we should still be checking explicitly. For this to work, we need to remove the clear_huge_page() from alloc_huge_page(), which is called with the page_table_lock held in the COW path. We move the clear_huge_page() to just after the alloc_huge_page() in the hugepage no-page path. In the COW path, the new page is about to be copied over, so clearing it was just a waste of time anyway. So as a side effect we also fix the fact that we held the page_table_lock for far too long in this path by calling alloc_huge_page() under it. It causes no regressions on the libhugetlbfs testsuite (ppc64, POWER5). Signed-off-by: David Gibson <dwg@au1.ibm.com> Cc: William Lee Irwin III <wli@holomorphy.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-03-22 07:54:03 -08:00
..
bootmem.c
fadvise.c
filemap.c	[PATCH] mm: make __put_page internal	2006-03-22 07:54:01 -08:00
filemap.h
filemap_xip.c
fremap.c
highmem.c
hugetlb.c	[PATCH] hugepage: Small fixes to hugepage clear/copy path	2006-03-22 07:54:03 -08:00
internal.h	[PATCH] remove set_page_count() outside mm/	2006-03-22 07:54:02 -08:00
Kconfig
madvise.c	[PATCH] madvise MADV_DONTFORK/MADV_DOFORK	2006-02-14 16:09:34 -08:00
Makefile
memory.c	[PATCH] mm: more CONFIG_DEBUG_VM	2006-03-22 07:54:02 -08:00
memory_hotplug.c	[PATCH] memory hotadd: pgdat->node_present_pages fix	2006-03-09 19:47:38 -08:00
mempolicy.c	[PATCH] mm: kill kmem_cache_t usage	2006-03-22 07:53:58 -08:00
mempool.c	[PATCH] mm: kill kmem_cache_t usage	2006-03-22 07:53:58 -08:00
mincore.c
mlock.c
mmap.c	[PATCH] remove VM_DONTCOPY bogosities	2006-03-22 07:54:01 -08:00
mprotect.c	[PATCH] Enable mprotect on huge pages	2006-03-22 07:54:03 -08:00
mremap.c
msync.c
nommu.c	[PATCH] mm: nommu use compound pages	2006-03-22 07:54:01 -08:00
oom_kill.c	[PATCH] out_of_memory() locking fix	2006-03-02 08:33:07 -08:00
page-writeback.c
page_alloc.c	[PATCH] mm: prep_zero_page() in irq is a bug	2006-03-22 07:54:02 -08:00
page_io.c
pdflush.c
prio_tree.c
readahead.c	[PATCH] readahead: fix initial window size calculation	2006-03-22 07:54:03 -08:00
rmap.c	[PATCH] mm: more CONFIG_DEBUG_VM	2006-03-22 07:54:02 -08:00
shmem.c	[PATCH] shmem: inline to avoid warning	2006-03-22 07:54:02 -08:00
slab.c	[PATCH] mm: nommu use compound pages	2006-03-22 07:54:01 -08:00
slob.c	[PATCH] SLOB=y && SMP=y fix	2006-02-08 07:52:58 -08:00
sparse.c
swap.c	[PATCH] mm: less atomic ops	2006-03-22 07:53:57 -08:00
swap_state.c
swapfile.c
thrash.c
tiny-shmem.c
truncate.c
util.c
vmalloc.c
vmscan.c	[PATCH] vmscan: emove obsolete checks from shrink_list() and fix unlikely in refill_inactive_zone()	2006-03-22 07:54:02 -08:00