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| author | Eric Van Hensbergen <ericvh@gmail.com> | 2005-09-09 13:04:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-09 13:57:57 -0700 |
| commit | 322b329ab787de5f45abca9c9eabfd33bc5927e8 (patch) | |
| tree | 63088ab90e6677c5c74134e7cc1cfb0e0b1eae84 | |
| parent | 426cc91aa651b50713d06d45e5c3c3e90cfd40d9 (diff) | |
| download | kernel-crypto-322b329ab787de5f45abca9c9eabfd33bc5927e8.tar.gz kernel-crypto-322b329ab787de5f45abca9c9eabfd33bc5927e8.tar.xz kernel-crypto-322b329ab787de5f45abca9c9eabfd33bc5927e8.zip | |
[PATCH] v9fs: Support to force umount
Support for force umount
Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | fs/9p/mux.c | 20 | ||||
| -rw-r--r-- | fs/9p/mux.h | 1 | ||||
| -rw-r--r-- | fs/9p/v9fs.c | 9 | ||||
| -rw-r--r-- | fs/9p/v9fs.h | 4 | ||||
| -rw-r--r-- | fs/9p/vfs_super.c | 9 |
5 files changed, 40 insertions, 3 deletions
diff --git a/fs/9p/mux.c b/fs/9p/mux.c index 8ebc1af2c24..0854bef58c1 100644 --- a/fs/9p/mux.c +++ b/fs/9p/mux.c @@ -324,6 +324,26 @@ v9fs_mux_rpc(struct v9fs_session_info *v9ses, struct v9fs_fcall *tcall, } /** + * v9fs_mux_cancel_requests - cancels all pending requests + * + * @v9ses: session info structure + * @err: error code to return to the requests + */ +void v9fs_mux_cancel_requests(struct v9fs_session_info *v9ses, int err) +{ + struct v9fs_rpcreq *rptr; + struct v9fs_rpcreq *rreq; + + dprintk(DEBUG_MUX, " %d\n", err); + spin_lock(&v9ses->muxlock); + list_for_each_entry_safe(rreq, rptr, &v9ses->mux_fcalls, next) { + rreq->err = err; + } + spin_unlock(&v9ses->muxlock); + wake_up_all(&v9ses->read_wait); +} + +/** * v9fs_recvproc - kproc to handle demultiplexing responses * @data: session info structure * diff --git a/fs/9p/mux.h b/fs/9p/mux.h index d7d8fa1c152..82ce793af1b 100644 --- a/fs/9p/mux.h +++ b/fs/9p/mux.h @@ -37,3 +37,4 @@ struct v9fs_rpcreq { int v9fs_mux_init(struct v9fs_session_info *v9ses, const char *dev_name); long v9fs_mux_rpc(struct v9fs_session_info *v9ses, struct v9fs_fcall *tcall, struct v9fs_fcall **rcall); +void v9fs_mux_cancel_requests(struct v9fs_session_info *v9ses, int err); diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index a573b751dd9..13bdbbab438 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -409,6 +409,15 @@ void v9fs_session_close(struct v9fs_session_info *v9ses) putname(v9ses->remotename); } +/** + * v9fs_session_cancel - mark transport as disconnected + * and cancel all pending requests. + */ +void v9fs_session_cancel(struct v9fs_session_info *v9ses) { + v9ses->transport->status = Disconnected; + v9fs_mux_cancel_requests(v9ses, -EIO); +} + extern int v9fs_error_init(void); /** diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h index 52203027b15..45dcef42bdd 100644 --- a/fs/9p/v9fs.h +++ b/fs/9p/v9fs.h @@ -89,9 +89,7 @@ struct v9fs_session_info *v9fs_inode2v9ses(struct inode *); void v9fs_session_close(struct v9fs_session_info *v9ses); int v9fs_get_idpool(struct v9fs_idpool *p); void v9fs_put_idpool(int id, struct v9fs_idpool *p); -int v9fs_get_option(char *opts, char *name, char *buf, int buflen); -long long v9fs_get_int_option(char *opts, char *name, long long dflt); -int v9fs_parse_tcp_devname(const char *devname, char **addr, char **remotename); +void v9fs_session_cancel(struct v9fs_session_info *v9ses); #define V9FS_MAGIC 0x01021997 diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index ce0778acc90..868f350b2c5 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -257,10 +257,19 @@ static int v9fs_show_options(struct seq_file *m, struct vfsmount *mnt) return 0; } +static void +v9fs_umount_begin(struct super_block *sb) +{ + struct v9fs_session_info *v9ses = sb->s_fs_info; + + v9fs_session_cancel(v9ses); +} + static struct super_operations v9fs_super_ops = { .statfs = simple_statfs, .clear_inode = v9fs_clear_inode, .show_options = v9fs_show_options, + .umount_begin = v9fs_umount_begin, }; struct file_system_type v9fs_fs_type = { |