[PATCH 2.6.13-rc2-mm2 3/7] v9fs: VFS inode operations (2.0.2)
From: ericvh
Date: Thu Jul 14 2005 - 13:47:45 EST
This is part [3/7] of the v9fs-2.0.2 patch against Linux 2.6.13-rc2-mm2.
This part of the patch contains the VFS inode interfaces changes related
to hch's comments.
Signed-off-by: Eric Van Hensbergen <ericvh@xxxxxxxxx>
----------
fs/9p/vfs_inode.c | 69 +++++-----------------------------------------------
1 files changed, 7 insertions(+), 62 deletions(-)
----------
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -34,9 +34,9 @@
#include <linux/smp_lock.h>
#include <linux/inet.h>
#include <linux/namei.h>
+#include <linux/idr.h>
#include "debug.h"
-#include "idpool.h"
#include "v9fs.h"
#include "9p.h"
#include "v9fs_vfs.h"
@@ -268,7 +268,6 @@ struct inode *v9fs_get_inode(struct supe
default:
dprintk(DEBUG_ERROR, "BAD mode 0x%x S_IFMT 0x%x\n",
mode, mode & S_IFMT);
- sb->s_op->put_inode(inode);
return ERR_PTR(-EINVAL);
}
} else {
@@ -446,30 +445,14 @@ static int v9fs_remove(struct inode *dir
dprintk(DEBUG_VFS, "inode: %p dentry: %p rmdir: %d\n", dir, file,
rmdir);
- if (!dir || !S_ISDIR(dir->i_mode)) {
- dprintk(DEBUG_ERROR, "dir inode is NULL or not a directory\n");
- return -ENOENT;
- }
-
- if (!file) {
- dprintk(DEBUG_ERROR, "NO dentry for file to remove\n");
- return -EBADF;
- }
-
- if (!file->d_inode) {
- dprintk(DEBUG_ERROR,
- "dentry %p NO INODE for file to remove!\n", file);
- return -EBADF;
- }
-
file_inode = file->d_inode;
sb = file_inode->i_sb;
v9ses = v9fs_inode2v9ses(file_inode);
v9fid = v9fs_fid_lookup(file, FID_OP);
- if (!sb || !v9ses || !v9fid) {
+ if (!v9fid) {
dprintk(DEBUG_ERROR,
- "no superblock or v9session or v9fs_fid\n");
+ "no v9fs_fid\n");
return -EBADF;
}
@@ -480,14 +463,6 @@ static int v9fs_remove(struct inode *dir
return -EBADF;
}
- if (rmdir && (!S_ISDIR(file_inode->i_mode))) {
- dprintk(DEBUG_ERROR, "trying to remove non-directory\n");
- return -ENOTDIR;
- } else if ((!rmdir) && S_ISDIR(file_inode->i_mode)) {
- dprintk(DEBUG_ERROR, "trying to remove directory\n");
- return -EISDIR;
- }
-
result = v9fs_t_remove(v9ses, fid, &fcall);
if (result < 0)
dprintk(DEBUG_ERROR, "remove of file fails: %s(%d)\n",
@@ -498,7 +473,6 @@ static int v9fs_remove(struct inode *dir
}
kfree(fcall);
-
return result;
}
@@ -556,17 +530,12 @@ static struct dentry *v9fs_vfs_lookup(st
dprintk(DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n",
dir, dentry->d_iname, dentry, nameidata);
- if (!dir) {
- dprintk(DEBUG_ERROR, "no dir inode\n");
- return ERR_PTR(-EINVAL);
- }
-
sb = dir->i_sb;
v9ses = v9fs_inode2v9ses(dir);
dirfid = v9fs_fid_lookup(dentry->d_parent, FID_WALK);
- if (!sb || !v9ses || !dirfid) {
- dprintk(DEBUG_ERROR, "no superblock, v9ses, or dirfid\n");
+ if (!dirfid) {
+ dprintk(DEBUG_ERROR, "no dirfid\n");
return ERR_PTR(-EINVAL);
}
@@ -867,7 +836,7 @@ void
v9fs_mistat2inode(struct v9fs_stat *mistat, struct inode *inode,
struct super_block *sb)
{
- struct v9fs_session_info *v9ses = sb ? sb->s_fs_info : NULL;
+ struct v9fs_session_info *v9ses = sb->s_fs_info;
inode->i_nlink = 1;
@@ -878,7 +847,7 @@ v9fs_mistat2inode(struct v9fs_stat *mist
inode->i_uid = -1;
inode->i_gid = -1;
- if (v9ses && v9ses->extended) {
+ if (v9ses->extended) {
/* TODO: string to uid mapping via user-space daemon */
inode->i_uid = mistat->n_uid;
inode->i_gid = mistat->n_gid;
@@ -959,7 +928,6 @@ v9fs_vfs_symlink(struct inode *dir, stru
int retval = -EPERM;
struct v9fs_fid *newfid;
struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir);
- struct super_block *sb = dir ? dir->i_sb : NULL;
struct v9fs_fcall *fcall = NULL;
struct v9fs_stat *mistat = kmalloc(v9ses->maxdata, GFP_KERNEL);
@@ -969,11 +937,6 @@ v9fs_vfs_symlink(struct inode *dir, stru
if(!mistat)
return -ENOMEM;
- if ((!dentry) || (!sb) || (!v9ses)) {
- dprintk(DEBUG_ERROR, "problem with arguments\n");
- return -EBADF;
- }
-
if (!v9ses->extended) {
dprintk(DEBUG_ERROR, "not extended\n");
goto FreeFcall;
@@ -997,9 +960,7 @@ v9fs_vfs_symlink(struct inode *dir, stru
goto FreeFcall;
}
- /* need to update dcache so we show up */
kfree(fcall);
- fcall = NULL;
if (v9fs_t_clunk(v9ses, newfid->fid, &fcall)) {
dprintk(DEBUG_ERROR, "clunk for symlink failed: %s\n",
@@ -1172,7 +1133,6 @@ v9fs_vfs_link(struct dentry *old_dentry,
{
int retval = -EPERM;
struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir);
- struct super_block *sb = dir ? dir->i_sb : NULL;
struct v9fs_fcall *fcall = NULL;
struct v9fs_stat *mistat = kmalloc(v9ses->maxdata, GFP_KERNEL);
struct v9fs_fid *oldfid = v9fs_fid_lookup(old_dentry, FID_OP);
@@ -1185,12 +1145,6 @@ v9fs_vfs_link(struct dentry *old_dentry,
if (!mistat)
return -ENOMEM;
- if ((!dentry) || (!sb) || (!v9ses) || (!oldfid)) {
- dprintk(DEBUG_ERROR, "problem with arguments\n");
- retval = -EBADF;
- goto FreeMem;
- }
-
if (!v9ses->extended) {
dprintk(DEBUG_ERROR, "not extended\n");
goto FreeMem;
@@ -1221,9 +1175,7 @@ v9fs_vfs_link(struct dentry *old_dentry,
goto FreeMem;
}
- /* need to update dcache so we show up */
kfree(fcall);
- fcall = NULL;
if (v9fs_t_clunk(v9ses, newfid->fid, &fcall)) {
dprintk(DEBUG_ERROR, "clunk for symlink failed: %s\n",
@@ -1258,7 +1210,6 @@ v9fs_vfs_mknod(struct inode *dir, struct
int retval = -EPERM;
struct v9fs_fid *newfid;
struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir);
- struct super_block *sb = dir ? dir->i_sb : NULL;
struct v9fs_fcall *fcall = NULL;
struct v9fs_stat *mistat = kmalloc(v9ses->maxdata, GFP_KERNEL);
char *symname = __getname();
@@ -1274,12 +1225,6 @@ v9fs_vfs_mknod(struct inode *dir, struct
goto FreeMem;
}
- if ((!dentry) || (!sb) || (!v9ses)) {
- dprintk(DEBUG_ERROR, "problem with arguments\n");
- retval = -EBADF;
- goto FreeMem;
- }
-
if (!v9ses->extended) {
dprintk(DEBUG_ERROR, "not extended\n");
goto FreeMem;
-
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