summaryrefslogtreecommitdiffstats
path: root/fs/ceph/addr.c
diff options
context:
space:
mode:
authorYan, Zheng <zyan@redhat.com>2015-07-01 16:27:46 +0800
committerIlya Dryomov <idryomov@gmail.com>2015-09-08 23:14:28 +0300
commit48fec5d0a504dfbb302cb1dd24ebb0b82a46cce9 (patch)
tree41b4e0cf38951bf49372e1272a08c8264bf3d943 /fs/ceph/addr.c
parent64291f7db5bd8150a74ad2036f1037e6a0428df2 (diff)
downloadblackbird-op-linux-48fec5d0a504dfbb302cb1dd24ebb0b82a46cce9.tar.gz
blackbird-op-linux-48fec5d0a504dfbb302cb1dd24ebb0b82a46cce9.zip
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>
Diffstat (limited to 'fs/ceph/addr.c')
-rw-r--r--fs/ceph/addr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 890c50971a69..1594f2c590bd 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -717,7 +717,7 @@ static int ceph_writepages_start(struct address_space *mapping,
wbc->sync_mode == WB_SYNC_NONE ? "NONE" :
(wbc->sync_mode == WB_SYNC_ALL ? "ALL" : "HOLD"));
- if (fsc->mount_state == CEPH_MOUNT_SHUTDOWN) {
+ if (ACCESS_ONCE(fsc->mount_state) == CEPH_MOUNT_SHUTDOWN) {
pr_warn("writepage_start %p on forced umount\n", inode);
return -EIO; /* we're in a forced umount, don't write! */
}
OpenPOWER on IntegriCloud