From f709e62625758e6c65f752b7d29c2ce1123ee9d4 Mon Sep 17 00:00:00 2001 From: Marc Dionne Date: Tue, 25 Jan 2011 18:18:56 -0500 Subject: [PATCH] linux: 2.6.38: Make d_revalidate RCU-walk aware Signal to the vfs that we don't support path RCU walk in d_revalidate. It will call back in non-RCU mode. (cherry picked from commit 52556d50298e4a636f07e9a3cf0b6557c882c82d) Reviewed-on: http://gerrit.openafs.org/3759 Tested-by: BuildBot Reviewed-by: Derrick Brashear Change-Id: I44d8577feba382a193d1f1735a05db74c3151df0 Reviewed-on: http://gerrit.openafs.org/3870 Tested-by: BuildBot Reviewed-by: Derrick Brashear --- src/afs/LINUX/osi_vnodeops.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/afs/LINUX/osi_vnodeops.c b/src/afs/LINUX/osi_vnodeops.c index 02aadd48f..f74b1bb7a 100644 --- a/src/afs/LINUX/osi_vnodeops.c +++ b/src/afs/LINUX/osi_vnodeops.c @@ -823,7 +823,13 @@ afs_linux_dentry_revalidate(struct dentry *dp, int flags) int valid; struct afs_fakestat_state fakestate; +#ifdef LOOKUP_RCU + /* We don't support RCU path walking */ + if (nd->flags & LOOKUP_RCU) + return -ECHILD; +#endif AFS_GLOCK(); + afs_InitFakeStat(&fakestate); if (dp->d_inode) { -- 2.39.5