diff options
Diffstat (limited to 'fs/autofs4')
| -rw-r--r-- | fs/autofs4/expire.c | 36 | ||||
| -rw-r--r-- | fs/autofs4/root.c | 4 |
2 files changed, 26 insertions, 14 deletions
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index 053d92a745b9..6ae2fc8233ff 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -47,6 +47,7 @@ static inline int autofs4_can_expire(struct dentry *dentry, /* Check a mount point for busyness */ static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry) { + struct dentry *top = dentry; int status = 1; DPRINTK("dentry %p %.*s", @@ -62,9 +63,14 @@ static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry) if (is_autofs4_dentry(dentry)) goto done; - /* The big question */ - if (may_umount_tree(mnt) == 0) - status = 0; + /* Update the expiry counter if fs is busy */ + if (may_umount_tree(mnt)) { + struct autofs_info *ino = autofs4_dentry_ino(top); + ino->last_used = jiffies; + goto done; + } + + status = 0; done: DPRINTK("returning = %d", status); mntput(mnt); @@ -101,7 +107,7 @@ static int autofs4_tree_busy(struct vfsmount *mnt, unsigned long timeout, int do_now) { - struct autofs_info *ino; + struct autofs_info *top_ino = autofs4_dentry_ino(top); struct dentry *p; DPRINTK("top %p %.*s", @@ -127,14 +133,16 @@ static int autofs4_tree_busy(struct vfsmount *mnt, * Is someone visiting anywhere in the subtree ? * If there's no mount we need to check the usage * count for the autofs dentry. + * If the fs is busy update the expiry counter. */ - ino = autofs4_dentry_ino(p); if (d_mountpoint(p)) { if (autofs4_mount_busy(mnt, p)) { + top_ino->last_used = jiffies; dput(p); return 1; } } else { + struct autofs_info *ino = autofs4_dentry_ino(p); unsigned int ino_count = atomic_read(&ino->count); /* allow for dget above and top is already dgot */ @@ -144,6 +152,7 @@ static int autofs4_tree_busy(struct vfsmount *mnt, ino_count++; if (atomic_read(&p->d_count) > ino_count) { + top_ino->last_used = jiffies; dput(p); return 1; } @@ -183,14 +192,13 @@ static struct dentry *autofs4_check_leaves(struct vfsmount *mnt, spin_unlock(&dcache_lock); if (d_mountpoint(p)) { - /* Can we expire this guy */ - if (!autofs4_can_expire(p, timeout, do_now)) + /* Can we umount this guy */ + if (autofs4_mount_busy(mnt, p)) goto cont; - /* Can we umount this guy */ - if (!autofs4_mount_busy(mnt, p)) + /* Can we expire this guy */ + if (autofs4_can_expire(p, timeout, do_now)) return p; - } cont: dput(p); @@ -246,12 +254,12 @@ static struct dentry *autofs4_expire(struct super_block *sb, DPRINTK("checking mountpoint %p %.*s", dentry, (int)dentry->d_name.len, dentry->d_name.name); - /* Can we expire this guy */ - if (!autofs4_can_expire(dentry, timeout, do_now)) + /* Can we umount this guy */ + if (autofs4_mount_busy(mnt, dentry)) goto next; - /* Can we umount this guy */ - if (!autofs4_mount_busy(mnt, dentry)) { + /* Can we expire this guy */ + if (autofs4_can_expire(dentry, timeout, do_now)) { expired = dentry; break; } diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c index d196712c4b94..3a4a5b47575c 100644 --- a/fs/autofs4/root.c +++ b/fs/autofs4/root.c @@ -330,6 +330,10 @@ static int try_to_fill_dentry(struct vfsmount *mnt, struct dentry *dentry, int f if (!autofs4_oz_mode(sbi)) autofs4_update_usage(mnt, dentry); + /* Initialize expiry counter after successful mount */ + if (ino) + ino->last_used = jiffies; + spin_lock(&dentry->d_lock); dentry->d_flags &= ~DCACHE_AUTOFS_PENDING; spin_unlock(&dentry->d_lock); |