On Thu, Nov 29, 2012 at 11:16:59AM -0800, Patrick McLean wrote: > With 3.6-rc1 and up, when using a (dracut) initramfs with a read-only > nfs root, all accesses to /proc. /sys and /dev return EBUSY. See "[PATCH] Revert "__d_unalias() should refuse to move mountpoints" thread. If you have a convenient reproducer, could you check if the fixes the breakage? If so, we'll need to look into false negatives from nfs_same_file() in there... diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index ce8cb92..55436f5 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -450,7 +450,10 @@ void nfs_prime_dcache(struct dentry *parent, struct nfs_entry *entry) nfs_refresh_inode(dentry->d_inode, entry->fattr); goto out; } else { - d_drop(dentry); + if (d_invalidate(dentry) != 0) { + WARN_ON(1); + goto out; + } dput(dentry); } } -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html