* [PATCH 03/17] dup_mnt_ns(): get rid of pointless grabbing of vfsmount_lock
@ 2013-10-03 6:17 Al Viro
0 siblings, 0 replies; only message in thread
From: Al Viro @ 2013-10-03 6:17 UTC (permalink / raw)
To: torvalds; +Cc: linux-fsdevel, linux-kernel
mnt_list is protected by namespace_sem, not vfsmount_lock
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/namespace.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index f6b7010..09a255d 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2444,9 +2444,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
return ERR_CAST(new);
}
new_ns->root = new;
- br_write_lock(&vfsmount_lock);
list_add_tail(&new_ns->list, &new->mnt_list);
- br_write_unlock(&vfsmount_lock);
/*
* Second pass: switch the tsk->fs->* elements and mark new vfsmounts
--
1.7.2.5
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