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authorSean Finney <seanius@seanius.net>2011-04-11 13:19:35 +0000
committerSteve French <sfrench@us.ibm.com>2011-05-19 14:10:55 +0000
commitf14bcf71d1b802f6042b6c70a0c37120e47a0876 (patch)
tree9852d20c31ec19caaccec30a0b06b89542681ac7 /fs
parent5167f11ec962690ecf926fab00f1d0524cd78664 (diff)
downloadlwn-f14bcf71d1b802f6042b6c70a0c37120e47a0876.tar.gz
lwn-f14bcf71d1b802f6042b6c70a0c37120e47a0876.zip
cifs: Unconditionally copy mount options to superblock info
Previously mount options were copied and updated in the cifs_sb_info struct only when CONFIG_CIFS_DFS_UPCALL was enabled. Making this information generally available allows us to remove a number of ifdefs, extra function params, and temporary variables. Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Sean Finney <seanius@seanius.net> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/cifs/cifs_fs_sb.h4
-rw-r--r--fs/cifs/cifsfs.c8
-rw-r--r--fs/cifs/cifsproto.h2
-rw-r--r--fs/cifs/connect.c8
4 files changed, 6 insertions, 16 deletions
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index ac51cd2d33ae..a9d5692e0c20 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -58,9 +58,7 @@ struct cifs_sb_info {
unsigned int mnt_cifs_flags;
int prepathlen;
char *prepath; /* relative path under the share to mount to */
-#ifdef CONFIG_CIFS_DFS_UPCALL
- char *mountdata; /* mount options received at mount time */
-#endif
+ char *mountdata; /* options received at mount time or via DFS refs */
struct backing_dev_info bdi;
struct delayed_work prune_tlinks;
};
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index bb39afcc6f38..2b8e47e5e533 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -128,7 +128,6 @@ cifs_read_super(struct super_block *sb, void *data,
}
cifs_sb->bdi.ra_pages = default_backing_dev_info.ra_pages;
-#ifdef CONFIG_CIFS_DFS_UPCALL
/*
* Copy mount params to sb for use in submounts. Better to do
* the copy here and deal with the error before cleanup gets
@@ -143,9 +142,8 @@ cifs_read_super(struct super_block *sb, void *data,
return -ENOMEM;
}
}
-#endif
- rc = cifs_mount(sb, cifs_sb, data, devname);
+ rc = cifs_mount(sb, cifs_sb, devname);
if (rc) {
if (!silent)
@@ -197,12 +195,10 @@ out_no_root:
out_mount_failed:
if (cifs_sb) {
-#ifdef CONFIG_CIFS_DFS_UPCALL
if (cifs_sb->mountdata) {
kfree(cifs_sb->mountdata);
cifs_sb->mountdata = NULL;
}
-#endif
unload_nls(cifs_sb->local_nls);
bdi_destroy(&cifs_sb->bdi);
kfree(cifs_sb);
@@ -226,12 +222,10 @@ cifs_put_super(struct super_block *sb)
rc = cifs_umount(sb, cifs_sb);
if (rc)
cERROR(1, "cifs_umount failed with return code %d", rc);
-#ifdef CONFIG_CIFS_DFS_UPCALL
if (cifs_sb->mountdata) {
kfree(cifs_sb->mountdata);
cifs_sb->mountdata = NULL;
}
-#endif
unload_nls(cifs_sb->local_nls);
bdi_destroy(&cifs_sb->bdi);
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 136d2f2febcc..a1c94d396afe 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -148,7 +148,7 @@ extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
const char *);
-extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
+extern int cifs_mount(struct super_block *, struct cifs_sb_info *,
const char *);
extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
extern void cifs_dfs_release_automount_timer(void);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 3e20831119a9..da284e3cb653 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2842,7 +2842,7 @@ expand_dfs_referral(int xid, struct cifsSesInfo *pSesInfo,
int
cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
- char *mount_data_global, const char *devname)
+ const char *devname)
{
int rc;
int xid;
@@ -2851,13 +2851,10 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
struct cifsTconInfo *tcon;
struct TCP_Server_Info *srvTcp;
char *full_path;
- char *mount_data = mount_data_global;
struct tcon_link *tlink;
#ifdef CONFIG_CIFS_DFS_UPCALL
int referral_walks_count = 0;
try_mount_again:
- mount_data = cifs_sb->mountdata;
-
/* cleanup activities if we're chasing a referral */
if (referral_walks_count) {
if (tcon)
@@ -2884,7 +2881,8 @@ try_mount_again:
goto out;
}
- if (cifs_parse_mount_options(mount_data, devname, volume_info)) {
+ if (cifs_parse_mount_options(cifs_sb->mountdata, devname,
+ volume_info)) {
rc = -EINVAL;
goto out;
}