From 48fec5d0a504dfbb302cb1dd24ebb0b82a46cce9 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Wed, 1 Jul 2015 16:27:46 +0800
Subject: ceph: EIO all operations after forced umount
This patch makes try_get_cap_refs() and __do_request() check
if the file system was forced umount, and return -EIO if it was.
This patch also adds a helper function to drops dirty caps and
wakes up blocking operation.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
---
fs/ceph/caps.c | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'fs/ceph/caps.c')
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index ddd5e9471290..27b566874bc1 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2413,6 +2413,14 @@ again:
goto out_unlock;
}
+ if (!__ceph_is_any_caps(ci) &&
+ ACCESS_ONCE(mdsc->fsc->mount_state) == CEPH_MOUNT_SHUTDOWN) {
+ dout("get_cap_refs %p forced umount\n", inode);
+ *err = -EIO;
+ ret = 1;
+ goto out_unlock;
+ }
+
dout("get_cap_refs %p have %s needed %s\n", inode,
ceph_cap_string(have), ceph_cap_string(need));
}
--
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