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CIFS: Move building path to root to ops struct 

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Pavel Shilovsky 2012-05-27 20:39:52 +04:00
parent be4cb9e3d4
commit 9224dfc2f9
6 changed files with 48 additions and 38 deletions
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4
fs/cifs/cifsfs.c
View File

@ -549,8 +549,8 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
char *s, *p;
char sep;
full_path = cifs_build_path_to_root(vol, cifs_sb,
cifs_sb_master_tcon(cifs_sb));
full_path = build_path_to_root(vol, cifs_sb,
cifs_sb_master_tcon(cifs_sb));
if (full_path == NULL)
return ERR_PTR(-ENOMEM);

13
fs/cifs/cifsglob.h
View File

@ -164,6 +164,7 @@ struct cifs_ses;
struct cifs_tcon;
struct dfs_info3_param;
struct cifs_fattr;
struct smb_vol;
struct smb_version_operations {
int (*send_cancel)(struct TCP_Server_Info *, void *,
@ -227,6 +228,9 @@ struct smb_version_operations {
int (*get_srv_inum)(const unsigned int, struct cifs_tcon *,
struct cifs_sb_info *, const char *,
u64 *uniqueid, FILE_ALL_INFO *);
/* build a full path to the root of the mount */
char * (*build_path_to_root)(struct smb_vol *, struct cifs_sb_info *,
struct cifs_tcon *);
};
struct smb_version_values {
@ -803,6 +807,15 @@ convert_delimiter(char *path, char delim)
}
}
static inline char *
build_path_to_root(struct smb_vol *vol, struct cifs_sb_info *cifs_sb,
struct cifs_tcon *tcon)
{
if (!vol->ops->build_path_to_root)
return NULL;
return vol->ops->build_path_to_root(vol, cifs_sb, tcon);
}
#ifdef CONFIG_CIFS_STATS
#define cifs_stats_inc atomic_inc

3
fs/cifs/cifsproto.h
View File

@ -57,9 +57,6 @@ extern int init_cifs_idmap(void);
extern void exit_cifs_idmap(void);
extern void cifs_destroy_idmaptrees(void);
extern char *build_path_from_dentry(struct dentry *);
extern char *cifs_build_path_to_root(struct smb_vol *vol,
struct cifs_sb_info *cifs_sb,
struct cifs_tcon *tcon);
extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
extern char *cifs_compose_mount_options(const char *sb_mountdata,
const char *fullpath, const struct dfs_info3_param *ref,

2
fs/cifs/connect.c
View File

@ -3684,7 +3684,7 @@ remote_path_check:
goto mount_fail_check;
}
/* build_path_to_root works only when we have a valid tcon */
full_path = cifs_build_path_to_root(volume_info, cifs_sb, tcon);
full_path = build_path_to_root(volume_info, cifs_sb, tcon);
if (full_path == NULL) {
rc = -ENOMEM;
goto mount_fail_check;

32
fs/cifs/inode.c
View File

@ -731,38 +731,6 @@ static const struct inode_operations cifs_ipc_inode_ops = {
.lookup = cifs_lookup,
};
char *cifs_build_path_to_root(struct smb_vol *vol, struct cifs_sb_info *cifs_sb,
struct cifs_tcon *tcon)
{
int pplen = vol->prepath ? strlen(vol->prepath) : 0;
int dfsplen;
char *full_path = NULL;
/* if no prefix path, simply set path to the root of share to "" */
if (pplen == 0) {
full_path = kmalloc(1, GFP_KERNEL);
if (full_path)
full_path[0] = 0;
return full_path;
}
if (tcon->Flags & SMB_SHARE_IS_IN_DFS)
dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1);
else
dfsplen = 0;
full_path = kmalloc(dfsplen + pplen + 1, GFP_KERNEL);
if (full_path == NULL)
return full_path;
if (dfsplen)
strncpy(full_path, tcon->treeName, dfsplen);
strncpy(full_path + dfsplen, vol->prepath, pplen);
convert_delimiter(full_path, CIFS_DIR_SEP(cifs_sb));
full_path[dfsplen + pplen] = 0; /* add trailing null */
return full_path;
}
static int
cifs_find_inode(struct inode *inode, void *opaque)
{

32
fs/cifs/smb1ops.c
View File

@ -489,6 +489,37 @@ cifs_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon,
CIFS_MOUNT_MAP_SPECIAL_CHR);
}
static char *
cifs_build_path_to_root(struct smb_vol *vol, struct cifs_sb_info *cifs_sb,
struct cifs_tcon *tcon)
{
int pplen = vol->prepath ? strlen(vol->prepath) : 0;
int dfsplen;
char *full_path = NULL;
/* if no prefix path, simply set path to the root of share to "" */
if (pplen == 0) {
full_path = kzalloc(1, GFP_KERNEL);
return full_path;
}
if (tcon->Flags & SMB_SHARE_IS_IN_DFS)
dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1);
else
dfsplen = 0;
full_path = kmalloc(dfsplen + pplen + 1, GFP_KERNEL);
if (full_path == NULL)
return full_path;
if (dfsplen)
strncpy(full_path, tcon->treeName, dfsplen);
strncpy(full_path + dfsplen, vol->prepath, pplen);
convert_delimiter(full_path, CIFS_DIR_SEP(cifs_sb));
full_path[dfsplen + pplen] = 0; /* add trailing null */
return full_path;
}
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
@ -518,6 +549,7 @@ struct smb_version_operations smb1_operations = {
.is_path_accessible = cifs_is_path_accessible,
.query_path_info = cifs_query_path_info,
.get_srv_inum = cifs_get_srv_inum,
.build_path_to_root = cifs_build_path_to_root,
};
struct smb_version_values smb1_values = {