diff options
| author | Yan, Zheng <zyan@redhat.com> | 2017-07-11 15:56:09 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2017-09-06 19:56:03 +0200 |
| commit | aa187926b739fb391f153335c7552c7a10d60e82 (patch) | |
| tree | 0954de9620a7afe747bdbf3fcca503f11afd630c /fs/ceph/super.h | |
| parent | 2ae409dc6a907e80f4cd32ad4482ef52441e3147 (diff) | |
ceph: limit osd read size to CEPH_MSG_MAX_DATA_LEN
libceph returns -EIO when read size > CEPH_MSG_MAX_DATA_LEN.
Link: http://tracker.ceph.com/issues/20528
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/super.h')
| -rw-r--r-- | fs/ceph/super.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h index da036d01933e..2b1b021ad6b8 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -46,7 +46,8 @@ #define ceph_test_mount_opt(fsc, opt) \ (!!((fsc)->mount_options->flags & CEPH_MOUNT_OPT_##opt)) -#define CEPH_RSIZE_DEFAULT (64*1024*1024) /* max read size */ +/* max size of osd read request, limited by libceph */ +#define CEPH_MAX_READ_SIZE CEPH_MSG_MAX_DATA_LEN #define CEPH_RASIZE_DEFAULT (8192*1024) /* max readahead */ #define CEPH_MAX_READDIR_DEFAULT 1024 #define CEPH_MAX_READDIR_BYTES_DEFAULT (512*1024) |