| commit | 8079b1c859c44f27d63da4951f5038a16589a563 | |
| author | Hugh Dickins <hughd@google.com> | |
| Wed, 3 Aug 2011 23:21:28 +0000 (3 16:21 -0700) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Thu, 4 Aug 2011 00:25:24 +0000 (3 14:25 -1000) | ||
| tree | 677e77a4c9d3b9c33427196cb5f860ebcf530b15 | treesnapshot (tar.gz zip) |
| parent | e504f3fdd63d486d45b18009e5a65f2e329acb0a | commitdiff |
mm: clarify the radix_tree exceptional cases
Make the radix_tree exceptional cases, mostly in filemap.c, clearer.
It's hard to devise a suitable snappy name that illuminates the use by
shmem/tmpfs for swap, while keeping filemap/pagecache/radix_tree
generality. And akpm points out that /* radix_tree_deref_retry(page) */
comments look like calls that have been commented out for unknown
reason.
Skirt the naming difficulty by rearranging these blocks to handle the
transient radix_tree_deref_retry(page) case first; then just explain the
remaining shmem/tmpfs swap case in a comment.
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the radix_tree exceptional cases, mostly in filemap.c, clearer.
It's hard to devise a suitable snappy name that illuminates the use by
shmem/tmpfs for swap, while keeping filemap/pagecache/radix_tree
generality. And akpm points out that /* radix_tree_deref_retry(page) */
comments look like calls that have been commented out for unknown
reason.
Skirt the naming difficulty by rearranging these blocks to handle the
transient radix_tree_deref_retry(page) case first; then just explain the
remaining shmem/tmpfs swap case in a comment.
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| mm/filemap.c | diffblobblamehistory | |
| mm/mincore.c | diffblobblamehistory | |
| mm/shmem.c | diffblobblamehistory |