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authorJeff Layton <jlayton@redhat.com>2017-02-01 21:49:09 +0300
committerIlya Dryomov <idryomov@gmail.com>2017-02-20 14:16:08 +0300
commitbc2de10dc4da5036ada3381775bd966f0c21c603 (patch)
tree5da0f735f7d5c87b23f7fef5e8fd135a39be12f7 /fs/ceph/debugfs.c
parentf5a03b080450784e671998921feb62fd3846c953 (diff)
downloadlinux-bc2de10dc4da5036ada3381775bd966f0c21c603.tar.xz
ceph: convert bools in ceph_mds_request to a new r_req_flags field
Currently, we have a bunch of bool flags in struct ceph_mds_request. We need more flags though, but each bool takes (at least) a byte. Those add up over time. Merge all of the existing bools in this struct into a single unsigned long, and use the set/test/clear_bit macros to manipulate them. These are atomic operations, but that is required here to prevent load/modify/store races. The existing flags are protected by different locks, so we can't rely on them for that purpose. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Yan, Zheng <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/debugfs.c')
-rw-r--r--fs/ceph/debugfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index 39ff678e567f..f2ae393e2c31 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -70,7 +70,7 @@ static int mdsc_show(struct seq_file *s, void *p)
seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
- if (req->r_got_unsafe)
+ if (test_bit(CEPH_MDS_R_GOT_UNSAFE, &req->r_req_flags))
seq_puts(s, "\t(unsafe)");
else
seq_puts(s, "\t");