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libceph: allow setting abort_on_full for rbd

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Introduce a new option abort_on_full, default to false. Then
we can get -ENOSPC when the pool is full, or reaches quota.

[ Don't show abort_on_full in /proc/mounts. ]

Signed-off-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Dongsheng Yang 2018-12-18 04:31:48 -05:00 • committed by Ilya Dryomov
parent bfeffd1552
commit 02b2f549d5
6 changed files with 19 additions and 9 deletions
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11
net/ceph/ceph_common.c
View file

@ -255,6 +255,7 @@ enum {
Opt_nocephx_sign_messages,
Opt_tcp_nodelay,
Opt_notcp_nodelay,
Opt_abort_on_full,
};
static match_table_t opt_tokens = {
@ -280,6 +281,7 @@ static match_table_t opt_tokens = {
{Opt_nocephx_sign_messages, "nocephx_sign_messages"},
{Opt_tcp_nodelay, "tcp_nodelay"},
{Opt_notcp_nodelay, "notcp_nodelay"},
{Opt_abort_on_full, "abort_on_full"},
{-1, NULL}
};
@ -535,6 +537,10 @@ ceph_parse_options(char *options, const char *dev_name,
opt->flags &= ~CEPH_OPT_TCP_NODELAY;
break;
case Opt_abort_on_full:
opt->flags |= CEPH_OPT_ABORT_ON_FULL;
break;
default:
BUG_ON(token);
}
@ -549,7 +555,8 @@ out:
}
EXPORT_SYMBOL(ceph_parse_options);
int ceph_print_client_options(struct seq_file *m, struct ceph_client *client)
int ceph_print_client_options(struct seq_file *m, struct ceph_client *client,
bool show_all)
{
struct ceph_options *opt = client->options;
size_t pos = m->count;
@ -574,6 +581,8 @@ int ceph_print_client_options(struct seq_file *m, struct ceph_client *client)
seq_puts(m, "nocephx_sign_messages,");
if ((opt->flags & CEPH_OPT_TCP_NODELAY) == 0)
seq_puts(m, "notcp_nodelay,");
if (show_all && (opt->flags & CEPH_OPT_ABORT_ON_FULL))
seq_puts(m, "abort_on_full,");
if (opt->mount_timeout != CEPH_MOUNT_TIMEOUT_DEFAULT)
seq_printf(m, "mount_timeout=%d,",