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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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4
fs/ceph/super.c
View File

@ -530,7 +530,7 @@ static int ceph_show_options(struct seq_file *m, struct dentry *root)
seq_putc(m, ',');
pos = m->count;
ret = ceph_print_client_options(m, fsc->client);
ret = ceph_print_client_options(m, fsc->client, false);
if (ret)
return ret;
@ -640,7 +640,7 @@ static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt,
opt = NULL; /* fsc->client now owns this */
fsc->client->extra_mon_dispatch = extra_mon_dispatch;
fsc->client->osdc.abort_on_full = true;
ceph_set_opt(fsc->client, ABORT_ON_FULL);
if (!fsopt->mds_namespace) {
ceph_monc_want_map(&fsc->client->monc, CEPH_SUB_MDSMAP,

6
include/linux/ceph/libceph.h
View File

@ -35,6 +35,7 @@
#define CEPH_OPT_NOMSGAUTH (1<<4) /* don't require msg signing feat */
#define CEPH_OPT_TCP_NODELAY (1<<5) /* TCP_NODELAY on TCP sockets */
#define CEPH_OPT_NOMSGSIGN (1<<6) /* don't sign msgs */
#define CEPH_OPT_ABORT_ON_FULL (1<<7) /* abort w/ ENOSPC when full */
#define CEPH_OPT_DEFAULT (CEPH_OPT_TCP_NODELAY)
@ -53,7 +54,7 @@ struct ceph_options {
unsigned long osd_request_timeout; /* jiffies */
/*
* any type that can't be simply compared or doesn't need need
* any type that can't be simply compared or doesn't need
* to be compared should go beyond this point,
* ceph_compare_options() should be updated accordingly
*/
@ -281,7 +282,8 @@ extern struct ceph_options *ceph_parse_options(char *options,
const char *dev_name, const char *dev_name_end,
int (*parse_extra_token)(char *c, void *private),
void *private);
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);
extern void ceph_destroy_options(struct ceph_options *opt);
extern int ceph_compare_options(struct ceph_options *new_opt,
struct ceph_client *client);

1
include/linux/ceph/osd_client.h
View File

@ -354,7 +354,6 @@ struct ceph_osd_client {
struct rb_root linger_map_checks;
atomic_t num_requests;
atomic_t num_homeless;
bool abort_on_full; /* abort w/ ENOSPC when full */
int abort_err;
struct delayed_work timeout_work;
struct delayed_work osds_timeout_work;

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,",

2
net/ceph/debugfs.c
View File

@ -375,7 +375,7 @@ static int client_options_show(struct seq_file *s, void *p)
struct ceph_client *client = s->private;
int ret;
ret = ceph_print_client_options(s, client);
ret = ceph_print_client_options(s, client, true);
if (ret)
return ret;

4
net/ceph/osd_client.c
View File

@ -2315,7 +2315,7 @@ again:
(ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) ||
pool_full(osdc, req->r_t.base_oloc.pool))) {
dout("req %p full/pool_full\n", req);
if (osdc->abort_on_full) {
if (ceph_test_opt(osdc->client, ABORT_ON_FULL)) {
err = -ENOSPC;
} else {
pr_warn_ratelimited("FULL or reached pool quota\n");
@ -2545,7 +2545,7 @@ static void ceph_osdc_abort_on_full(struct ceph_osd_client *osdc)
{
bool victims = false;
if (osdc->abort_on_full &&
if (ceph_test_opt(osdc->client, ABORT_ON_FULL) &&
(ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || have_pool_full(osdc)))
for_each_request(osdc, abort_on_full_fn, &victims);
}