android/android_kernel_asus_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cifs: remove unneeded NULL checks from cifs_show_options

Browse Source 
show_options is always called with the namespace_sem held. Therefore we
don't need to worry about the vfsmount being NULL, or it vanishing while
the function is running. By the same token, there's no need to worry
about the superblock, tcon, smb or tcp sessions being NULL on entry.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Jeff Layton 2009-06-11 10:27:28 -04:00 committed by Steve French
parent f3ad116588
commit 8616e0fc1e
1 changed files with 58 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

128
fs/cifs/cifsfs.c
View File

@ -346,80 +346,68 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
struct TCP_Server_Info *server;
cifs_sb = CIFS_SB(m->mnt_sb);
tcon = cifs_sb->tcon;
if (cifs_sb) {
tcon = cifs_sb->tcon;
if (tcon) {
seq_printf(s, ",unc=%s", cifs_sb->tcon->treeName);
if (tcon->ses) {
if (tcon->ses->userName)
seq_printf(s, ",username=%s",
tcon->ses->userName);
if (tcon->ses->domainName)
seq_printf(s, ",domain=%s",
tcon->ses->domainName);
server = tcon->ses->server;
if (server) {
seq_printf(s, ",addr=");
switch (server->addr.sockAddr6.
sin6_family) {
case AF_INET6:
seq_printf(s, "%pI6",
&server->addr.sockAddr6.sin6_addr);
break;
case AF_INET:
seq_printf(s, "%pI4",
&server->addr.sockAddr.sin_addr.s_addr);
break;
}
}
}
if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) ||
!(tcon->unix_ext))
seq_printf(s, ",uid=%d", cifs_sb->mnt_uid);
if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) ||
!(tcon->unix_ext))
seq_printf(s, ",gid=%d", cifs_sb->mnt_gid);
if (!tcon->unix_ext) {
seq_printf(s, ",file_mode=0%o,dir_mode=0%o",
seq_printf(s, ",unc=%s", cifs_sb->tcon->treeName);
if (tcon->ses->userName)
seq_printf(s, ",username=%s", tcon->ses->userName);
if (tcon->ses->domainName)
seq_printf(s, ",domain=%s", tcon->ses->domainName);
cifs_show_address(s, tcon->ses->server);
seq_printf(s, ",uid=%d", cifs_sb->mnt_uid);
seq_printf(s, ",gid=%d", cifs_sb->mnt_gid);
server = tcon->ses->server;
seq_printf(s, ",addr=");
switch (server->addr.sockAddr6.sin6_family) {
case AF_INET6:
seq_printf(s, "%pI6", &server->addr.sockAddr6.sin6_addr);
break;
case AF_INET:
seq_printf(s, "%pI4", &server->addr.sockAddr.sin_addr.s_addr);
break;
}
if (!tcon->unix_ext)
seq_printf(s, ",file_mode=0%o,dir_mode=0%o",
cifs_sb->mnt_file_mode,
cifs_sb->mnt_dir_mode);
}
if (tcon->seal)
seq_printf(s, ",seal");
if (tcon->nocase)
seq_printf(s, ",nocase");
if (tcon->retry)
seq_printf(s, ",hard");
}
if (cifs_sb->prepath)
seq_printf(s, ",prepath=%s", cifs_sb->prepath);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
seq_printf(s, ",posixpaths");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID)
seq_printf(s, ",setuids");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
seq_printf(s, ",serverino");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
seq_printf(s, ",directio");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
seq_printf(s, ",nouser_xattr");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
seq_printf(s, ",mapchars");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)
seq_printf(s, ",sfu");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
seq_printf(s, ",nobrl");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
seq_printf(s, ",cifsacl");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
seq_printf(s, ",dynperm");
if (m->mnt_sb->s_flags & MS_POSIXACL)
seq_printf(s, ",acl");
if (tcon->seal)
seq_printf(s, ",seal");
if (tcon->nocase)
seq_printf(s, ",nocase");
if (tcon->retry)
seq_printf(s, ",hard");
if (cifs_sb->prepath)
seq_printf(s, ",prepath=%s", cifs_sb->prepath);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
seq_printf(s, ",posixpaths");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID)
seq_printf(s, ",setuids");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
seq_printf(s, ",serverino");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
seq_printf(s, ",directio");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
seq_printf(s, ",nouser_xattr");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
seq_printf(s, ",mapchars");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)
seq_printf(s, ",sfu");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
seq_printf(s, ",nobrl");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
seq_printf(s, ",cifsacl");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
seq_printf(s, ",dynperm");
if (m->mnt_sb->s_flags & MS_POSIXACL)
seq_printf(s, ",acl");
seq_printf(s, ",rsize=%d", cifs_sb->rsize);
seq_printf(s, ",wsize=%d", cifs_sb->wsize);
seq_printf(s, ",rsize=%d", cifs_sb->rsize);
seq_printf(s, ",wsize=%d", cifs_sb->wsize);
}
return 0;
}