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| author | Christoph Hellwig <hch@lst.de> | 2010-10-24 19:40:24 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-10-25 21:26:15 -0400 |
| commit | d895a1c96af8c2a0f6a5e0119695a7c6b92df8db (patch) | |
| tree | 6c6c72f5a071eb3c1c31b9188e8237d64001b2eb | |
| parent | 7ccf19a8042e343f8159f8a5fdd6a9422aa90c78 (diff) | |
| download | linux-d895a1c96af8c2a0f6a5e0119695a7c6b92df8db.tar.bz2 | |
fs: do not drop inode_lock in dispose_list
Despite the comment above it we can not safely drop the lock here.
invalidate_list is called from many other places that just umount.
Also switch to proper list macros now that we never drop the lock.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/inode.c | 20 |
1 files changed, 2 insertions, 18 deletions
diff --git a/fs/inode.c b/fs/inode.c index 09e2d7a5f1d2..1bf2be41257a 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -482,26 +482,10 @@ static void dispose_list(struct list_head *head) */ static int invalidate_list(struct list_head *head, struct list_head *dispose) { - struct list_head *next; + struct inode *inode, *next; int busy = 0; - next = head->next; - for (;;) { - struct list_head *tmp = next; - struct inode *inode; - - /* - * We can reschedule here without worrying about the list's - * consistency because the per-sb list of inodes must not - * change during umount anymore, and because iprune_sem keeps - * shrink_icache_memory() away. - */ - cond_resched_lock(&inode_lock); - - next = next->next; - if (tmp == head) - break; - inode = list_entry(tmp, struct inode, i_sb_list); + list_for_each_entry_safe(inode, next, head, i_sb_list) { if (inode->i_state & I_NEW) continue; if (atomic_read(&inode->i_count)) { |