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-rw-r--r--mm/filemap.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 2f81650..8430420 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -101,9 +101,8 @@
* ->inode->i_lock (zap_pte_range->set_page_dirty)
* ->private_lock (zap_pte_range->__set_page_dirty_buffers)
*
- * (code doesn't rely on that order, so you could switch it around)
- * ->tasklist_lock (memory_failure, collect_procs_ao)
- * ->i_mmap_mutex
+ * ->i_mmap_mutex
+ * ->tasklist_lock (memory_failure, collect_procs_ao)
*/
/*
@@ -500,10 +499,13 @@ struct page *__page_cache_alloc(gfp_t gfp)
struct page *page;
if (cpuset_do_page_mem_spread()) {
- get_mems_allowed();
- n = cpuset_mem_spread_node();
- page = alloc_pages_exact_node(n, gfp, 0);
- put_mems_allowed();
+ unsigned int cpuset_mems_cookie;
+ do {
+ cpuset_mems_cookie = get_mems_allowed();
+ n = cpuset_mem_spread_node();
+ page = alloc_pages_exact_node(n, gfp, 0);
+ } while (!put_mems_allowed(cpuset_mems_cookie) && !page);
+
return page;
}
return alloc_pages(gfp, 0);
@@ -2341,7 +2343,9 @@ struct page *grab_cache_page_write_begin(struct address_space *mapping,
struct page *page;
gfp_t gfp_notmask = 0;
- gfp_mask = mapping_gfp_mask(mapping) | __GFP_WRITE;
+ gfp_mask = mapping_gfp_mask(mapping);
+ if (mapping_cap_account_dirty(mapping))
+ gfp_mask |= __GFP_WRITE;
if (flags & AOP_FLAG_NOFS)
gfp_notmask = __GFP_FS;
repeat:
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