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[PATCH] knfsd: nfsd: store export path in export

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Store the export path in the svc_export structure instead of storing only the
dentry.  This will prevent the need for additional d_path calls to provide
NFSv4 fs_locations support.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
J.Bruce Fields 2006-10-04 02:16:17 -07:00 committed by Linus Torvalds
parent 21c0d8fdd9
commit b009a873de
2 changed files with 11 additions and 0 deletions
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10
fs/nfsd/export.c
View file

@ -325,6 +325,7 @@ static void svc_export_put(struct kref *ref)
dput(exp->ex_dentry);
mntput(exp->ex_mnt);
auth_domain_put(exp->ex_client);
kfree(exp->ex_path);
kfree(exp);
}
@ -398,6 +399,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
int an_int;
nd.dentry = NULL;
exp.ex_path = NULL;
if (mesg[mlen-1] != '\n')
return -EINVAL;
@ -428,6 +430,10 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
exp.ex_client = dom;
exp.ex_mnt = nd.mnt;
exp.ex_dentry = nd.dentry;
exp.ex_path = kstrdup(buf, GFP_KERNEL);
err = -ENOMEM;
if (!exp.ex_path)
goto out;
/* expiry */
err = -EINVAL;
@ -473,6 +479,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
else
exp_put(expp);
out:
kfree(exp.ex_path);
if (nd.dentry)
path_release(&nd);
out_no_path:
@ -524,6 +531,7 @@ static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
new->ex_client = item->ex_client;
new->ex_dentry = dget(item->ex_dentry);
new->ex_mnt = mntget(item->ex_mnt);
new->ex_path = NULL;
}
static void export_update(struct cache_head *cnew, struct cache_head *citem)
@ -535,6 +543,8 @@ static void export_update(struct cache_head *cnew, struct cache_head *citem)
new->ex_anon_uid = item->ex_anon_uid;
new->ex_anon_gid = item->ex_anon_gid;
new->ex_fsid = item->ex_fsid;
new->ex_path = item->ex_path;
item->ex_path = NULL;
}
static struct cache_head *svc_export_alloc(void)

1
include/linux/nfsd/export.h
View file

@ -51,6 +51,7 @@ struct svc_export {
int ex_flags;
struct vfsmount * ex_mnt;
struct dentry * ex_dentry;
char * ex_path;
uid_t ex_anon_uid;
gid_t ex_anon_gid;
int ex_fsid;