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authorLatchesar Ionkov <lucho@ionkov.net>2007-07-10 17:57:28 -0500
committerEric Van Hensbergen <ericvh@ericvh-desktop.austin.ibm.com>2007-07-14 15:13:40 -0500
commitbd238fb431f31989898423c8b6496bc8c4204a86 (patch)
treef85a536383cbf360125ecb0592f6c515e0ecf0ff /fs/9p/vfs_super.c
parent8d9107e8c50e1c4ff43c91c8841805833f3ecfb9 (diff)
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9p: Reorganization of 9p file system code
This patchset moves non-filesystem interfaces of v9fs from fs/9p to net/9p. It moves the transport, packet marshalling and connection layers to net/9p leaving only the VFS related files in fs/9p. This work is being done in preparation for in-kernel 9p servers as well as alternate 9p clients (other than VFS). Signed-off-by: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'fs/9p/vfs_super.c')
-rw-r--r--fs/9p/vfs_super.c91
1 files changed, 37 insertions, 54 deletions
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 7bdf8b32684..f6a0519ade8 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -37,10 +37,10 @@
#include <linux/mount.h>
#include <linux/idr.h>
#include <linux/sched.h>
+#include <net/9p/9p.h>
+#include <net/9p/client.h>
-#include "debug.h"
#include "v9fs.h"
-#include "9p.h"
#include "v9fs_vfs.h"
#include "fid.h"
@@ -107,41 +107,48 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
struct vfsmount *mnt)
{
struct super_block *sb = NULL;
- struct v9fs_fcall *fcall = NULL;
struct inode *inode = NULL;
struct dentry *root = NULL;
struct v9fs_session_info *v9ses = NULL;
- struct v9fs_fid *root_fid = NULL;
+ struct p9_stat *st = NULL;
int mode = S_IRWXUGO | S_ISVTX;
uid_t uid = current->fsuid;
gid_t gid = current->fsgid;
- int stat_result = 0;
- int newfid = 0;
+ struct p9_fid *fid;
int retval = 0;
- dprintk(DEBUG_VFS, " \n");
+ P9_DPRINTK(P9_DEBUG_VFS, " \n");
v9ses = kzalloc(sizeof(struct v9fs_session_info), GFP_KERNEL);
if (!v9ses)
return -ENOMEM;
- if ((newfid = v9fs_session_init(v9ses, dev_name, data)) < 0) {
- dprintk(DEBUG_ERROR, "problem initiating session\n");
- retval = newfid;
- goto out_free_session;
+ fid = v9fs_session_init(v9ses, dev_name, data);
+ if (IS_ERR(fid)) {
+ retval = PTR_ERR(fid);
+ fid = NULL;
+ kfree(v9ses);
+ v9ses = NULL;
+ goto error;
+ }
+
+ st = p9_client_stat(fid);
+ if (IS_ERR(st)) {
+ retval = PTR_ERR(st);
+ goto error;
}
sb = sget(fs_type, NULL, v9fs_set_super, v9ses);
if (IS_ERR(sb)) {
retval = PTR_ERR(sb);
- goto out_close_session;
+ goto error;
}
v9fs_fill_super(sb, v9ses, flags);
inode = v9fs_get_inode(sb, S_IFDIR | mode);
if (IS_ERR(inode)) {
retval = PTR_ERR(inode);
- goto put_back_sb;
+ goto error;
}
inode->i_uid = uid;
@@ -150,54 +157,30 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
root = d_alloc_root(inode);
if (!root) {
retval = -ENOMEM;
- goto put_back_sb;
+ goto error;
}
sb->s_root = root;
+ root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
+ v9fs_stat2inode(st, root->d_inode, sb);
+ v9fs_fid_add(root, fid);
- stat_result = v9fs_t_stat(v9ses, newfid, &fcall);
- if (stat_result < 0) {
- dprintk(DEBUG_ERROR, "stat error\n");
- v9fs_t_clunk(v9ses, newfid);
- } else {
- /* Setup the Root Inode */
- root_fid = v9fs_fid_create(v9ses, newfid);
- if (root_fid == NULL) {
- retval = -ENOMEM;
- goto put_back_sb;
- }
-
- retval = v9fs_fid_insert(root_fid, root);
- if (retval < 0) {
- kfree(fcall);
- goto put_back_sb;
- }
-
- root_fid->qid = fcall->params.rstat.stat.qid;
- root->d_inode->i_ino =
- v9fs_qid2ino(&fcall->params.rstat.stat.qid);
- v9fs_stat2inode(&fcall->params.rstat.stat, root->d_inode, sb);
- }
+ return simple_set_mnt(mnt, sb);
- kfree(fcall);
+error:
+ if (fid)
+ p9_client_clunk(fid);
- if (stat_result < 0) {
- retval = stat_result;
- goto put_back_sb;
+ if (v9ses) {
+ v9fs_session_close(v9ses);
+ kfree(v9ses);
}
- return simple_set_mnt(mnt, sb);
-
-out_close_session:
- v9fs_session_close(v9ses);
-out_free_session:
- kfree(v9ses);
- return retval;
+ if (sb) {
+ up_write(&sb->s_umount);
+ deactivate_super(sb);
+ }
-put_back_sb:
- /* deactivate_super calls v9fs_kill_super which will frees the rest */
- up_write(&sb->s_umount);
- deactivate_super(sb);
return retval;
}
@@ -211,7 +194,7 @@ static void v9fs_kill_super(struct super_block *s)
{
struct v9fs_session_info *v9ses = s->s_fs_info;
- dprintk(DEBUG_VFS, " %p\n", s);
+ P9_DPRINTK(P9_DEBUG_VFS, " %p\n", s);
v9fs_dentry_release(s->s_root); /* clunk root */
@@ -219,7 +202,7 @@ static void v9fs_kill_super(struct super_block *s)
v9fs_session_close(v9ses);
kfree(v9ses);
- dprintk(DEBUG_VFS, "exiting kill_super\n");
+ P9_DPRINTK(P9_DEBUG_VFS, "exiting kill_super\n");
}
/**