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| author | Hugh Dickins <hughd@google.com> | 2011-08-03 16:21:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-08-03 14:25:24 -1000 |
| commit | 31475dd611209413bace21651a400afb91d0bd9d (patch) | |
| tree | 679c1cb33e211a4f2e5c0f47bb836393c9454d35 /fs/stack.c | |
| parent | 69f07ec938712b58755add82dd3d0b35f01317cc (diff) | |
| download | kernel-common-31475dd611209413bace21651a400afb91d0bd9d.tar.gz kernel-common-31475dd611209413bace21651a400afb91d0bd9d.tar.bz2 kernel-common-31475dd611209413bace21651a400afb91d0bd9d.zip | |
mm: a few small updates for radix-swap
Remove PageSwapBacked (!page_is_file_cache) cases from
add_to_page_cache_locked() and add_to_page_cache_lru(): those pages now
go through shmem_add_to_page_cache().
Remove a comment on maximum tmpfs size from fsstack_copy_inode_size(),
and add a comment on swap entries to invalidate_mapping_pages().
And mincore_page() uses find_get_page() on what might be shmem or a
tmpfs file: allow for a radix_tree_exceptional_entry(), and proceed to
find_get_page() on swapper_space if so (oh, swapper_space needs #ifdef).
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/stack.c')
| -rw-r--r-- | fs/stack.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/stack.c b/fs/stack.c index 4a6f7f440658..b4f2ab48a61f 100644 --- a/fs/stack.c +++ b/fs/stack.c @@ -29,10 +29,7 @@ void fsstack_copy_inode_size(struct inode *dst, struct inode *src) * * We don't actually know what locking is used at the lower level; * but if it's a filesystem that supports quotas, it will be using - * i_lock as in inode_add_bytes(). tmpfs uses other locking, and - * its 32-bit is (just) able to exceed 2TB i_size with the aid of - * holes; but its i_blocks cannot carry into the upper long without - * almost 2TB swap - let's ignore that case. + * i_lock as in inode_add_bytes(). */ if (sizeof(i_blocks) > sizeof(long)) spin_lock(&src->i_lock); |