diff options
Diffstat (limited to 'Documentation/cachetlb.txt')
-rw-r--r-- | Documentation/cachetlb.txt | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt index d79b008e4a32..3f9f808b5119 100644 --- a/Documentation/cachetlb.txt +++ b/Documentation/cachetlb.txt | |||
@@ -317,10 +317,10 @@ maps this page at its virtual address. | |||
317 | about doing this. | 317 | about doing this. |
318 | 318 | ||
319 | The idea is, first at flush_dcache_page() time, if | 319 | The idea is, first at flush_dcache_page() time, if |
320 | page->mapping->i_mmap is an empty tree and ->i_mmap_nonlinear | 320 | page->mapping->i_mmap is an empty tree, just mark the architecture |
321 | an empty list, just mark the architecture private page flag bit. | 321 | private page flag bit. Later, in update_mmu_cache(), a check is |
322 | Later, in update_mmu_cache(), a check is made of this flag bit, | 322 | made of this flag bit, and if set the flush is done and the flag |
323 | and if set the flush is done and the flag bit is cleared. | 323 | bit is cleared. |
324 | 324 | ||
325 | IMPORTANT NOTE: It is often important, if you defer the flush, | 325 | IMPORTANT NOTE: It is often important, if you defer the flush, |
326 | that the actual flush occurs on the same CPU | 326 | that the actual flush occurs on the same CPU |