From: NeilBrown <neilb@cse.unsw.edu.au>
Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/fs/nfsd/nfs4state.c | 27 +++++++++++++++++++++++++++
1 files changed, 27 insertions(+)
diff -puN fs/nfsd/nfs4state.c~knfsd-find-a-delegation-for-a-file-given-a-stateid fs/nfsd/nfs4state.c
--- 25/fs/nfsd/nfs4state.c~knfsd-find-a-delegation-for-a-file-given-a-stateid Fri Dec 17 15:08:35 2004
+++ 25-akpm/fs/nfsd/nfs4state.c Fri Dec 17 15:08:35 2004
@@ -81,6 +81,7 @@ u32 free_delegation= 0;
/* forward declarations */
struct nfs4_stateid * find_stateid(stateid_t *stid, int flags);
+static struct nfs4_delegation * find_delegation_stateid(struct inode *ino, stateid_t *stid);
/* Locking:
*
@@ -2056,6 +2057,32 @@ find_stateid(stateid_t *stid, int flags)
return NULL;
}
+static struct nfs4_delegation *
+find_delegation_stateid(struct inode *ino, stateid_t *stid)
+{
+ struct nfs4_delegation *dp = NULL;
+ struct nfs4_file *fp = NULL;
+ u32 st_id;
+ unsigned int fi_hashval;
+
+ dprintk("NFSD:find_delegation_stateid stateid=(%08x/%08x/%08x/%08x)\n",
+ stid->si_boot, stid->si_stateownerid,
+ stid->si_fileid, stid->si_generation);
+
+ if(!ino || !stid)
+ return NULL;
+ st_id = stid->si_stateownerid;
+ fi_hashval = file_hashval(ino);
+ if (find_file(fi_hashval, ino, &fp)) {
+ list_for_each_entry(dp, &fp->fi_del_perfile, dl_del_perfile) {
+ if(dp->dl_stateid.si_stateownerid == st_id) {
+ dprintk("NFSD: find_delegation dp %p\n",dp);
+ return dp;
+ }
+ }
+ }
+ return NULL;
+}
/*
* TODO: Linux file offsets are _signed_ 64-bit quantities, which means that
_