[PATCH] nfsd4: find_delegation_file()

Factor out a bit of common code that will be useful elsewhere.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 75e8b13..bb95275 100644 (file)
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1526,6 +1526,18 @@ out:
        return status;
 }
 
+static struct nfs4_delegation *
+find_delegation_file(struct nfs4_file *fp, stateid_t *stid)
+{
+       struct nfs4_delegation *dp;
+
+       list_for_each_entry(dp, &fp->fi_del_perfile, dl_del_perfile) {
+               if (dp->dl_stateid.si_stateownerid == stid->si_stateownerid)
+                       return dp;
+       }
+       return NULL;
+}
+
 static int
 nfs4_check_open(struct nfs4_file *fp, struct nfsd4_open *open, struct nfs4_stateid **stpp)
 {
@@ -2419,24 +2431,15 @@ find_stateid(stateid_t *stid, int flags)
 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;
 
        dprintk("NFSD:find_delegation_stateid stateid=(%08x/%08x/%08x/%08x)\n",
                     stid->si_boot, stid->si_stateownerid,
                     stid->si_fileid, stid->si_generation);
 
-       st_id = stid->si_stateownerid;
        fp = find_file(ino);
-       if (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;
-                       }
-               }
-       }
+       if (fp)
+               return find_delegation_file(fp, stid);
        return NULL;
 }