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authorGeliang Tang <geliangtang@163.com>2016-01-14 15:20:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-14 16:00:49 -0800
commita8ae49917077facbe4ed7b3a89bf025b1cefa0ed (patch)
tree9084e900d1594e8176297fef6dfffdd5e0513db8 /mm/swapfile.c
parent8c9c1701c7c23a57ebfd1a0b27b87053ae43cfb5 (diff)
mm/swapfile.c: use list_{next,first}_entry
To make the intention clearer, use list_{next,first}_entry instead of list_entry(). Signed-off-by: Geliang Tang <geliangtang@163.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/swapfile.c')
-rw-r--r--mm/swapfile.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 58877312cf6b..77551a553f57 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -165,8 +165,6 @@ static void discard_swap_cluster(struct swap_info_struct *si,
int found_extent = 0;
while (nr_pages) {
- struct list_head *lh;
-
if (se->start_page <= start_page &&
start_page < se->start_page + se->nr_pages) {
pgoff_t offset = start_page - se->start_page;
@@ -188,8 +186,7 @@ static void discard_swap_cluster(struct swap_info_struct *si,
break;
}
- lh = se->list.next;
- se = list_entry(lh, struct swap_extent, list);
+ se = list_next_entry(se, list);
}
}
@@ -903,7 +900,7 @@ int swp_swapcount(swp_entry_t entry)
VM_BUG_ON(page_private(page) != SWP_CONTINUED);
do {
- page = list_entry(page->lru.next, struct page, lru);
+ page = list_next_entry(page, lru);
map = kmap_atomic(page);
tmp_count = map[offset];
kunmap_atomic(map);
@@ -1633,14 +1630,11 @@ static sector_t map_swap_entry(swp_entry_t entry, struct block_device **bdev)
se = start_se;
for ( ; ; ) {
- struct list_head *lh;
-
if (se->start_page <= offset &&
offset < (se->start_page + se->nr_pages)) {
return se->start_block + (offset - se->start_page);
}
- lh = se->list.next;
- se = list_entry(lh, struct swap_extent, list);
+ se = list_next_entry(se, list);
sis->curr_swap_extent = se;
BUG_ON(se == start_se); /* It *must* be present */
}
@@ -1664,7 +1658,7 @@ static void destroy_swap_extents(struct swap_info_struct *sis)
while (!list_empty(&sis->first_swap_extent.list)) {
struct swap_extent *se;
- se = list_entry(sis->first_swap_extent.list.next,
+ se = list_first_entry(&sis->first_swap_extent.list,
struct swap_extent, list);
list_del(&se->list);
kfree(se);