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authorIan Kent <raven@themaw.net>2011-03-24 20:51:08 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2011-03-24 21:54:34 +0300
commit3c3199852905ceb90a70e98777e71d369a5f0823 (patch)
treeaec40f3721955394587fc4ad364606161bc98cc5 /fs/autofs4/expire.c
parent62a7375e5d77d654695297c4b39d5d740d901184 (diff)
downloadlinux-3c3199852905ceb90a70e98777e71d369a5f0823.tar.xz
autofs4 - reinstate last used update on access
When direct (and offset) mounts were introduced the the last used timeout could no longer be updated in ->d_revalidate(). This is because covered direct mounts would be followed over without calling the autofs file system. As a result the definition of the busyness check for all entries was changed to be "actually busy" being an open file or working directory within the automount. But now we have a call back in the follow so the last used update on any access can be re-instated. This requires DCACHE_MANAGE_TRANSIT to always be set. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/autofs4/expire.c')
-rw-r--r--fs/autofs4/expire.c13
1 files changed, 2 insertions, 11 deletions
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index f43100b9662b..c896dd6c1ea9 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -294,7 +294,6 @@ struct dentry *autofs4_expire_direct(struct super_block *sb,
spin_unlock(&sbi->fs_lock);
return NULL;
}
- managed_dentry_set_transit(root);
if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
struct autofs_info *ino = autofs4_dentry_ino(root);
ino->flags |= AUTOFS_INF_EXPIRING;
@@ -302,7 +301,6 @@ struct dentry *autofs4_expire_direct(struct super_block *sb,
spin_unlock(&sbi->fs_lock);
return root;
}
- managed_dentry_clear_transit(root);
spin_unlock(&sbi->fs_lock);
dput(root);
@@ -341,8 +339,7 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
ino = autofs4_dentry_ino(dentry);
/* No point expiring a pending mount */
if (ino->flags & AUTOFS_INF_PENDING)
- goto cont;
- managed_dentry_set_transit(dentry);
+ goto next;
/*
* Case 1: (i) indirect mount or top level pseudo direct mount
@@ -402,8 +399,6 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
}
}
next:
- managed_dentry_clear_transit(dentry);
-cont:
spin_unlock(&sbi->fs_lock);
}
return NULL;
@@ -484,8 +479,6 @@ int autofs4_expire_run(struct super_block *sb,
spin_lock(&sbi->fs_lock);
ino = autofs4_dentry_ino(dentry);
ino->flags &= ~AUTOFS_INF_EXPIRING;
- if (!d_unhashed(dentry))
- managed_dentry_clear_transit(dentry);
complete_all(&ino->expire_complete);
spin_unlock(&sbi->fs_lock);
@@ -513,9 +506,7 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
spin_lock(&sbi->fs_lock);
ino->flags &= ~AUTOFS_INF_EXPIRING;
spin_lock(&dentry->d_lock);
- if (ret)
- __managed_dentry_clear_transit(dentry);
- else {
+ if (!ret) {
if ((IS_ROOT(dentry) ||
(autofs_type_indirect(sbi->type) &&
IS_ROOT(dentry->d_parent))) &&