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Diffstat (limited to 'Documentation/cachetlb.txt')
-rw-r--r-- | Documentation/cachetlb.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt index 4ae418889b88..1f312a9893d9 100644 --- a/Documentation/cachetlb.txt +++ b/Documentation/cachetlb.txt | |||
@@ -362,6 +362,15 @@ maps this page at its virtual address. | |||
362 | likely that you will need to flush the instruction cache | 362 | likely that you will need to flush the instruction cache |
363 | for copy_to_user_page(). | 363 | for copy_to_user_page(). |
364 | 364 | ||
365 | void flush_anon_page(struct page *page, unsigned long vmaddr) | ||
366 | When the kernel needs to access the contents of an anonymous | ||
367 | page, it calls this function (currently only | ||
368 | get_user_pages()). Note: flush_dcache_page() deliberately | ||
369 | doesn't work for an anonymous page. The default | ||
370 | implementation is a nop (and should remain so for all coherent | ||
371 | architectures). For incoherent architectures, it should flush | ||
372 | the cache of the page at vmaddr in the current user process. | ||
373 | |||
365 | void flush_icache_range(unsigned long start, unsigned long end) | 374 | void flush_icache_range(unsigned long start, unsigned long end) |
366 | When the kernel stores into addresses that it will execute | 375 | When the kernel stores into addresses that it will execute |
367 | out of (eg when loading modules), this function is called. | 376 | out of (eg when loading modules), this function is called. |