From bd238fb431f31989898423c8b6496bc8c4204a86 Mon Sep 17 00:00:00 2001 From: Latchesar Ionkov Date: Tue, 10 Jul 2007 17:57:28 -0500 Subject: 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 Signed-off-by: Eric Van Hensbergen --- fs/9p/vfs_super.c | 91 ++++++++++++++++++++++--------------------------------- 1 file changed, 37 insertions(+), 54 deletions(-) (limited to 'fs/9p/vfs_super.c') 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 #include #include +#include +#include -#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"); } /** -- cgit v1.2.3-18-g5258