diff options
| author | Igor Mammedov <niallain@gmail.com> | 2008-04-24 12:56:07 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-04-25 09:15:26 -0400 |
| commit | 78d31a3a87f84cf56004b7bc154831f2ee1186e8 (patch) | |
| tree | 0b18911e95f08dc2bce01c1555fe65f1865b0c71 /fs | |
| parent | b69d3987f4360a5e7e9e55465b3cdd0cc204b79e (diff) | |
| download | lwn-78d31a3a87f84cf56004b7bc154831f2ee1186e8.tar.gz lwn-78d31a3a87f84cf56004b7bc154831f2ee1186e8.zip | |
cifs: timeout dfs automounts +little fix.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/cifs_dfs_ref.c | 29 | ||||
| -rw-r--r-- | fs/cifs/cifsfs.c | 3 | ||||
| -rw-r--r-- | fs/cifs/cifsproto.h | 8 |
3 files changed, 23 insertions, 17 deletions
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c index f53f41ff1665..95024c066d89 100644 --- a/fs/cifs/cifs_dfs_ref.c +++ b/fs/cifs/cifs_dfs_ref.c @@ -25,14 +25,26 @@ static LIST_HEAD(cifs_dfs_automount_list); -/* - * DFS functions -*/ +static void cifs_dfs_expire_automounts(struct work_struct *work); +static DECLARE_DELAYED_WORK(cifs_dfs_automount_task, + cifs_dfs_expire_automounts); +static int cifs_dfs_mountpoint_expiry_timeout = 500 * HZ; + +static void cifs_dfs_expire_automounts(struct work_struct *work) +{ + struct list_head *list = &cifs_dfs_automount_list; + + mark_mounts_for_expiry(list); + if (!list_empty(list)) + schedule_delayed_work(&cifs_dfs_automount_task, + cifs_dfs_mountpoint_expiry_timeout); +} -void dfs_shrink_umount_helper(struct vfsmount *vfsmnt) +void cifs_dfs_release_automount_timer(void) { - mark_mounts_for_expiry(&cifs_dfs_automount_list); - mark_mounts_for_expiry(&cifs_dfs_automount_list); + BUG_ON(!list_empty(&cifs_dfs_automount_list)); + cancel_delayed_work(&cifs_dfs_automount_task); + flush_scheduled_work(); } /** @@ -261,10 +273,11 @@ static int add_mount_helper(struct vfsmount *newmnt, struct nameidata *nd, err = do_add_mount(newmnt, nd, nd->path.mnt->mnt_flags, mntlist); switch (err) { case 0: - dput(nd->path.dentry); - mntput(nd->path.mnt); + path_put(&nd->path); nd->path.mnt = newmnt; nd->path.dentry = dget(newmnt->mnt_root); + schedule_delayed_work(&cifs_dfs_automount_task, + cifs_dfs_mountpoint_expiry_timeout); break; case -EBUSY: /* someone else made a mount here whilst we were busy */ diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index a04b17e5a9d0..dbb2cd678bf5 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -471,8 +471,6 @@ static void cifs_umount_begin(struct vfsmount *vfsmnt, int flags) struct cifs_sb_info *cifs_sb; struct cifsTconInfo *tcon; - dfs_shrink_umount_helper(vfsmnt); - if (!(flags & MNT_FORCE)) return; cifs_sb = CIFS_SB(vfsmnt->mnt_sb); @@ -1100,6 +1098,7 @@ exit_cifs(void) cFYI(DBG2, ("exit_cifs")); cifs_proc_clean(); #ifdef CONFIG_CIFS_DFS_UPCALL + cifs_dfs_release_automount_timer(); unregister_key_type(&key_type_dns_resolver); #endif #ifdef CONFIG_CIFS_UPCALL diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 0c83da4a7dab..50f9fdae19b3 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -104,13 +104,7 @@ extern int mode_to_acl(struct inode *inode, const char *path, __u64); extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *, const char *); extern int cifs_umount(struct super_block *, struct cifs_sb_info *); -#ifdef CONFIG_CIFS_DFS_UPCALL -extern void dfs_shrink_umount_helper(struct vfsmount *vfsmnt); -#else -static inline void dfs_shrink_umount_helper(struct vfsmount *vfsmnt) -{ -} -#endif /* DFS_UPCALL */ +extern void cifs_dfs_release_automount_timer(void); void cifs_proc_init(void); void cifs_proc_clean(void); |