xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ceph: limit osd write size

Browse Source 
OSD has a configurable limitation of max write size. OSD return
error if write request size is larger than the limitation. For now,
set max write size to CEPH_MSG_MAX_DATA_LEN. It should be small
enough.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Yan, Zheng
2017-07-11 17:34:46 +08:00
committed by Ilya Dryomov
parent aa187926b7
commit 95cca2b44e
4 changed files with 11 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
fs/ceph/super.h
View File

@@ -48,6 +48,9 @@
/* max size of osd read request, limited by libceph */
#define CEPH_MAX_READ_SIZE CEPH_MSG_MAX_DATA_LEN
/* osd has a configurable limitaion of max write size.
* CEPH_MSG_MAX_DATA_LEN should be small enough. */
#define CEPH_MAX_WRITE_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)