git: ae322395284d - stable/13 - vfs_hash_insert: ensure that predicate is true
Konstantin Belousov
kib at FreeBSD.org
Fri Sep 3 01:09:06 UTC 2021
The branch stable/13 has been updated by kib:
URL: https://cgit.FreeBSD.org/src/commit/?id=ae322395284dc666e41b92beb862ea0c743fcff1
commit ae322395284dc666e41b92beb862ea0c743fcff1
Author: Konstantin Belousov <kib at FreeBSD.org>
AuthorDate: 2021-08-17 13:47:25 +0000
Commit: Konstantin Belousov <kib at FreeBSD.org>
CommitDate: 2021-09-03 01:08:36 +0000
vfs_hash_insert: ensure that predicate is true
(cherry picked from commit 7c1e4aab7934933f0669c2b922976b30ed628a3f)
---
sys/kern/vfs_hash.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/sys/kern/vfs_hash.c b/sys/kern/vfs_hash.c
index e10e9b57e316..c5d67c8b2b33 100644
--- a/sys/kern/vfs_hash.c
+++ b/sys/kern/vfs_hash.c
@@ -93,8 +93,14 @@ vfs_hash_get(const struct mount *mp, u_int hash, int flags, struct thread *td,
error = vget_finish(vp, flags, vs);
if (error == ENOENT && (flags & LK_NOWAIT) == 0)
break;
- if (error)
+ if (error != 0)
return (error);
+ if (vp->v_hash != hash ||
+ (fn != NULL && fn(vp, arg))) {
+ vput(vp);
+ /* Restart the bucket walk. */
+ break;
+ }
*vpp = vp;
return (0);
}
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