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authorHugh Dickins <hugh@veritas.com>2008-02-04 22:28:41 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-05 09:44:14 -0800
commit46017e954826ac59e91df76341a3f76b45467847 (patch)
tree711a35e3936118665d0eac2afeef8758b4f4e95f /mm/shmem.c
parentc4cc6d07b2f465fbf5efd99bbe772a49c515f3f2 (diff)
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swapin_readahead: move and rearrange args
swapin_readahead has never sat well in mm/memory.c: move it to mm/swap_state.c beside its kindred read_swap_cache_async. Why were its args in a different order? rearrange them. And since it was always followed by a read_swap_cache_async of the target page, fold that in and return struct page*. Then CONFIG_SWAP=n no longer needs valid_swaphandles and read_swap_cache_async stubs. Signed-off-by: Hugh Dickins <hugh@veritas.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 'mm/shmem.c')
-rw-r--r--mm/shmem.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 88c6685f16b7..3a22a8f79331 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1036,8 +1036,7 @@ static struct page *shmem_swapin(struct shmem_inode_info *info,
pvma.vm_pgoff = idx;
pvma.vm_ops = NULL;
pvma.vm_policy = mpol_shared_policy_lookup(&info->policy, idx);
- swapin_readahead(entry, 0, &pvma);
- page = read_swap_cache_async(entry, &pvma, 0);
+ page = swapin_readahead(entry, &pvma, 0);
mpol_free(pvma.vm_policy);
return page;
}
@@ -1067,8 +1066,7 @@ static inline int shmem_parse_mpol(char *value, int *policy,
static inline struct page *
shmem_swapin(struct shmem_inode_info *info,swp_entry_t entry,unsigned long idx)
{
- swapin_readahead(entry, 0, NULL);
- return read_swap_cache_async(entry, NULL, 0);
+ return swapin_readahead(entry, NULL, 0);
}
static inline struct page *