diff options
| author | Luis Henriques | 2018-01-05 11:47:18 +0100 |
|---|---|---|
| committer | Ilya Dryomov | 2018-04-02 11:17:51 +0200 |
| commit | fb18a57568c2b84cd611e242c0f6fa97b45e4907 (patch) | |
| tree | 0f447778c8ce55e583cd8cf8eb8e945d38b5c208 /fs/ceph/mds_client.c | |
| parent | rbd: remove VLA usage (diff) | |
| download | kernel-qcow2-linux-fb18a57568c2b84cd611e242c0f6fa97b45e4907.tar.gz kernel-qcow2-linux-fb18a57568c2b84cd611e242c0f6fa97b45e4907.tar.xz kernel-qcow2-linux-fb18a57568c2b84cd611e242c0f6fa97b45e4907.zip | |
ceph: quota: add initial infrastructure to support cephfs quotas
This patch adds the infrastructure required to support cephfs quotas as it
is currently implemented in the ceph fuse client. Cephfs quotas can be
set on any directory, and can restrict the number of bytes or the number
of files stored beneath that point in the directory hierarchy.
Quotas are set using the extended attributes 'ceph.quota.max_files' and
'ceph.quota.max_bytes', and can be removed by setting these attributes to
'0'.
Link: http://tracker.ceph.com/issues/22372
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/mds_client.c')
| -rw-r--r-- | fs/ceph/mds_client.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 537048b4a4d5..1c9877c1149f 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -100,6 +100,26 @@ static int parse_reply_info_in(void **p, void *end, } else info->inline_version = CEPH_INLINE_NONE; + if (features & CEPH_FEATURE_MDS_QUOTA) { + u8 struct_v, struct_compat; + u32 struct_len; + + /* + * both struct_v and struct_compat are expected to be >= 1 + */ + ceph_decode_8_safe(p, end, struct_v, bad); + ceph_decode_8_safe(p, end, struct_compat, bad); + if (!struct_v || !struct_compat) + goto bad; + ceph_decode_32_safe(p, end, struct_len, bad); + ceph_decode_need(p, end, struct_len, bad); + ceph_decode_64_safe(p, end, info->max_bytes, bad); + ceph_decode_64_safe(p, end, info->max_files, bad); + } else { + info->max_bytes = 0; + info->max_files = 0; + } + info->pool_ns_len = 0; info->pool_ns_data = NULL; if (features & CEPH_FEATURE_FS_FILE_LAYOUT_V2) { @@ -4082,6 +4102,9 @@ static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) case CEPH_MSG_CLIENT_LEASE: handle_lease(mdsc, s, msg); break; + case CEPH_MSG_CLIENT_QUOTA: + ceph_handle_quota(mdsc, s, msg); + break; default: pr_err("received unknown message type %d %s\n", type, |