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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-03-25 11:41:20 -0400
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-03-25 11:41:20 -0400
commit7bf7e370d5919112c223a269462cd0b546903829 (patch)
tree03ccc715239df14ae168277dbccc9d9cf4d8a2c8 /lib/list_debug.c
parent68b1a1e786f29c900fa1c516a402e24f0ece622a (diff)
parentd39dd11c3e6a7af5c20bfac40594db36cf270f42 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6: (9356 commits) [media] rc: update for bitop name changes fs: simplify iget & friends fs: pull inode->i_lock up out of writeback_single_inode fs: rename inode_lock to inode_hash_lock fs: move i_wb_list out from under inode_lock fs: move i_sb_list out from under inode_lock fs: remove inode_lock from iput_final and prune_icache fs: Lock the inode LRU list separately fs: factor inode disposal fs: protect inode->i_state with inode->i_lock lib, arch: add filter argument to show_mem and fix private implementations SLUB: Write to per cpu data when allocating it slub: Fix debugobjects with lockless fastpath autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd() autofs4 - remove autofs4_lock autofs4 - fix d_manage() return on rcu-walk autofs4 - fix autofs4_expire_indirect() traversal autofs4 - fix dentry leak in autofs4_expire_direct() autofs4 - reinstate last used update on access vfs - check non-mountpoint dentry might block in __follow_mount_rcu() ... NOTE! This merge commit was created to fix compilation error. The block tree was merged upstream and removed the 'elv_queue_empty()' function which the new 'mtdswap' driver is using. So a simple merge of the mtd tree with upstream does not compile. And the mtd tree has already be published, so re-basing it is not an option. To fix this unfortunate situation, I had to merge upstream into the mtd-2.6.git tree without committing, put the fixup patch on top of this, and then commit this. The result is that we do not have commits which do not compile. In other words, this merge commit "merges" 3 things: the MTD tree, the upstream tree, and the fixup patch.
Diffstat (limited to 'lib/list_debug.c')
-rw-r--r--lib/list_debug.c39
1 files changed, 26 insertions, 13 deletions
diff --git a/lib/list_debug.c b/lib/list_debug.c
index 344c710d16ca..b8029a5583ff 100644
--- a/lib/list_debug.c
+++ b/lib/list_debug.c
@@ -35,6 +35,31 @@ void __list_add(struct list_head *new,
35} 35}
36EXPORT_SYMBOL(__list_add); 36EXPORT_SYMBOL(__list_add);
37 37
38void __list_del_entry(struct list_head *entry)
39{
40 struct list_head *prev, *next;
41
42 prev = entry->prev;
43 next = entry->next;
44
45 if (WARN(next == LIST_POISON1,
46 "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
47 entry, LIST_POISON1) ||
48 WARN(prev == LIST_POISON2,
49 "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
50 entry, LIST_POISON2) ||
51 WARN(prev->next != entry,
52 "list_del corruption. prev->next should be %p, "
53 "but was %p\n", entry, prev->next) ||
54 WARN(next->prev != entry,
55 "list_del corruption. next->prev should be %p, "
56 "but was %p\n", entry, next->prev))
57 return;
58
59 __list_del(prev, next);
60}
61EXPORT_SYMBOL(__list_del_entry);
62
38/** 63/**
39 * list_del - deletes entry from list. 64 * list_del - deletes entry from list.
40 * @entry: the element to delete from the list. 65 * @entry: the element to delete from the list.
@@ -43,19 +68,7 @@ EXPORT_SYMBOL(__list_add);
43 */ 68 */
44void list_del(struct list_head *entry) 69void list_del(struct list_head *entry)
45{ 70{
46 WARN(entry->next == LIST_POISON1, 71 __list_del_entry(entry);
47 "list_del corruption, next is LIST_POISON1 (%p)\n",
48 LIST_POISON1);
49 WARN(entry->next != LIST_POISON1 && entry->prev == LIST_POISON2,
50 "list_del corruption, prev is LIST_POISON2 (%p)\n",
51 LIST_POISON2);
52 WARN(entry->prev->next != entry,
53 "list_del corruption. prev->next should be %p, "
54 "but was %p\n", entry, entry->prev->next);
55 WARN(entry->next->prev != entry,
56 "list_del corruption. next->prev should be %p, "
57 "but was %p\n", entry, entry->next->prev);
58 __list_del(entry->prev, entry->next);
59 entry->next = LIST_POISON1; 72 entry->next = LIST_POISON1;
60 entry->prev = LIST_POISON2; 73 entry->prev = LIST_POISON2;
61} 74}