diff options
| author |   Ian Kent <raven@themaw.net> | 2011-03-25 01:51:08 +0800 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2011-03-24 14:54:34 -0400 |
| commit | 3c3199852905ceb90a70e98777e71d369a5f0823 (patch) | |
| tree | aec40f3721955394587fc4ad364606161bc98cc5 /fs/autofs4/expire.c | |
| parent | vfs - check non-mountpoint dentry might block in __follow_mount_rcu() (diff) | |
| download | linux-dev-3c3199852905ceb90a70e98777e71d369a5f0823.tar.xz linux-dev-3c3199852905ceb90a70e98777e71d369a5f0823.zip | |
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.c | 13 |
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))) && |