diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2015-02-10 14:09:59 -0800 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2018-10-03 04:09:51 +0100 |
| commit | e4c2e72564fbefbe691e445d68c86967ec559bb2 (patch) | |
| tree | 35f7ddbf22be851db10ad9a506f0a9111cf9e022 /Documentation | |
| parent | 9b32e3ea687fa273d4cacdac9f9bc6753904220e (diff) | |
rmap: drop support of non-linear mappings
commit 27ba0644ea9dfe6e7693abc85837b60e40583b96 upstream.
We don't create non-linear mappings anymore. Let's drop code which
handles them in rmap.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[bwh: Backported to 3.16:
- Deleted code is slightly different
- Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'Documentation')
| -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. about doing this. The idea is, first at flush_dcache_page() time, if - page->mapping->i_mmap is an empty tree and ->i_mmap_nonlinear - an empty list, just mark the architecture private page flag bit. - Later, in update_mmu_cache(), a check is made of this flag bit, - and if set the flush is done and the flag bit is cleared. + page->mapping->i_mmap is an empty tree, just mark the architecture + private page flag bit. Later, in update_mmu_cache(), a check is + made of this flag bit, and if set the flush is done and the flag + bit is cleared. IMPORTANT NOTE: It is often important, if you defer the flush, that the actual flush occurs on the same CPU |