[PATCH 07/40] nfsd: do filp_close in sc_free callback for lock stateids

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Releasing locks when we unhash the stateid instead of doing so only when
the stateid is actually released will be problematic in later patches
when we need to protect the unhashing with spinlocks. Move it into the
sc_free operation instead.

Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
---
 fs/nfsd/nfs4state.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 7b329b28734c..cedf86a3b9b7 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -911,6 +911,18 @@ static void nfs4_free_generic_stateid(struct nfs4_stid *stid)
 	nfs4_free_stid(stateid_slab, stid);
 }
 
+static void nfs4_free_lock_stateid(struct nfs4_stid *stid)
+{
+	struct nfs4_ol_stateid *stp = openlockstateid(stid);
+	struct nfs4_lockowner *lo = lockowner(stp->st_stateowner);
+	struct file *file;
+
+	file = find_any_file(stp->st_stid.sc_file);
+	if (file)
+		filp_close(file, (fl_owner_t)lo);
+	nfs4_free_generic_stateid(stid);
+}
+
 static void put_generic_stateid(struct nfs4_ol_stateid *stp)
 {
 	nfs4_put_stid(&stp->st_stid);
@@ -918,14 +930,9 @@ static void put_generic_stateid(struct nfs4_ol_stateid *stp)
 
 static void __release_lock_stateid(struct nfs4_ol_stateid *stp)
 {
-	struct file *file;
-
 	list_del(&stp->st_locks);
 	unhash_generic_stateid(stp);
 	unhash_stid(&stp->st_stid);
-	file = find_any_file(stp->st_stid.sc_file);
-	if (file)
-		filp_close(file, (fl_owner_t)lockowner(stp->st_stateowner));
 	put_generic_stateid(stp);
 }
 
@@ -4720,6 +4727,7 @@ alloc_init_lock_stateid(struct nfs4_lockowner *lo, struct nfs4_file *fp, struct
 	stp->st_stateowner = &lo->lo_owner;
 	get_nfs4_file(fp);
 	stp->st_stid.sc_file = fp;
+	stp->st_stid.sc_free = nfs4_free_lock_stateid;
 	stp->st_access_bmap = 0;
 	stp->st_deny_bmap = open_stp->st_deny_bmap;
 	stp->st_openstp = open_stp;
-- 
1.9.3

--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Filesystem Development]     [Linux USB Development]     [Linux Media Development]     [Video for Linux]     [Linux NILFS]     [Linux Audio Users]     [Yosemite Info]     [Linux SCSI]

  Powered by Linux