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Subject[PATCH 3/7] afs: Need to clear responded flag in addr cursor
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In afs_select_fileserver(), we need to clear the ->responded flag in the
address list when reusing it. We should also clear it in
afs_select_current_fileserver().

To this end, just memset() the object before initialising it.

Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: stable@vger.kernel.org
---

fs/afs/rotate.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/fs/afs/rotate.c b/fs/afs/rotate.c
index b473b25c6978..892a4904fd77 100644
--- a/fs/afs/rotate.c
+++ b/fs/afs/rotate.c
@@ -384,6 +384,7 @@ bool afs_select_fileserver(struct afs_fs_cursor *fc)
afs_get_addrlist(alist);
read_unlock(&server->fs_lock);

+ memset(&fc->ac, 0, sizeof(fc->ac));

/* Probe the current fileserver if we haven't done so yet. */
if (!test_bit(AFS_SERVER_FL_PROBED, &server->flags)) {
@@ -398,11 +399,8 @@ bool afs_select_fileserver(struct afs_fs_cursor *fc)
else
afs_put_addrlist(alist);

- fc->ac.addr = NULL;
fc->ac.start = READ_ONCE(alist->index);
fc->ac.index = fc->ac.start;
- fc->ac.error = 0;
- fc->ac.begun = false;
goto iterate_address;

iterate_address:
@@ -458,12 +456,10 @@ bool afs_select_current_fileserver(struct afs_fs_cursor *fc)
return false;
}

+ memset(&fc->ac, 0, sizeof(fc->ac));
fc->ac.alist = alist;
- fc->ac.addr = NULL;
fc->ac.start = READ_ONCE(alist->index);
fc->ac.index = fc->ac.start;
- fc->ac.error = 0;
- fc->ac.begun = false;
goto iterate_address;

case 0:
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