Messages in this thread Patch in this message |  | | | Date | Thu, 6 Jul 2000 18:38:57 +0200 | | From | Dick Streefland <> | | Subject | Re: [patch] autofs4 in 2.4.0 doesn't expire |
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On Monday 2000-07-03 17:48, Dick Streefland wrote: | The expiration in autofs v4 of the 2.4.0 kernels doesn't seem to work. | I'm using kernel 2.4.0-test3-pre2 with autofs4 and autofs-4.0.0pre7. | After turning on debugging output, I found out that expiration doesn't | work because is_tree_busy() always returns 1, even if the filesystem | is not in use. I suspect that the busy count calculation is incorrect. | The patch below changes this, so that both single mounts, and tree | mounts will now unmount correctly. However, there is still a problem | with a local mount: the symlink that is created instead of the NFS | mount is not expired.
Here is an updated version of my patch that also handles the case where a host does not export the root, but only subdirectories. I've worked around the symlink problem by using the "nosymlink" option.
-- Dick Streefland //// TASKING Software BV dick_streefland@tasking.com (@ @) http://www.tasking.com --------------------------------oOO--(_)--OOo--------------------------- --- linux/fs/autofs4/expire.c.orig Mon May 8 20:17:47 2000 +++ linux/fs/autofs4/expire.c Thu Jul 6 18:10:17 2000 @@ -22,7 +22,9 @@ struct list_head *next; int count; - count = atomic_read(&mnt->mnt_count); + count = atomic_read(&mnt->mnt_count) - 2; + if (!is_autofs4_dentry(mnt->mnt_mountpoint)) + count--; repeat: next = this_parent->mnt_mounts.next; resume: @@ -32,7 +34,7 @@ mnt_child); next = tmp->next; /* Decrement count for unused children */ - count += atomic_read(&p->mnt_count) - 1; + count += atomic_read(&p->mnt_count) - 2; if (!list_empty(&p->mnt_mounts)) { this_parent = p; goto repeat; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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