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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

Browse source 
Pull Ceph updates from Sage Weil:
 "We have a pile of bug fixes from Ilya, including a few patches that
  sync up the CRUSH code with the latest from userspace.

  There is also a long series from Zheng that fixes various issues with
  snapshots, inline data, and directory fsync, some simplification and
  improvement in the cap release code, and a rework of the caching of
  directory contents.

  To top it off there are a few small fixes and cleanups from Benoit and
  Hong"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (40 commits)
  rbd: use GFP_NOIO in rbd_obj_request_create()
  crush: fix a bug in tree bucket decode
  libceph: Fix ceph_tcp_sendpage()'s more boolean usage
  libceph: Remove spurious kunmap() of the zero page
  rbd: queue_depth map option
  rbd: store rbd_options in rbd_device
  rbd: terminate rbd_opts_tokens with Opt_err
  ceph: fix ceph_writepages_start()
  rbd: bump queue_max_segments
  ceph: rework dcache readdir
  crush: sync up with userspace
  crush: fix crash from invalid 'take' argument
  ceph: switch some GFP_NOFS memory allocation to GFP_KERNEL
  ceph: pre-allocate data structure that tracks caps flushing
  ceph: re-send flushing caps (which are revoked) in reconnect stage
  ceph: send TID of the oldest pending caps flush to MDS
  ceph: track pending caps flushing globally
  ceph: track pending caps flushing accurately
  libceph: fix wrong name "Ceph filesystem for Linux"
  ceph: fix directory fsync
  ...
This commit is contained in:
Linus Torvalds 2015-07-02 11:35:00 -07:00
commit 0c76c6ba24
28 changed files with 2010 additions and 1071 deletions
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111
drivers/block/rbd.c
View file

@ -346,6 +346,7 @@ struct rbd_device {
struct rbd_image_header header;
unsigned long flags; /* possibly lock protected */
struct rbd_spec *spec;
struct rbd_options *opts;
char *header_name;
@ -724,34 +725,36 @@ static struct rbd_client *rbd_client_find(struct ceph_options *ceph_opts)
}
/*
* mount options
* (Per device) rbd map options
*/
enum {
Opt_queue_depth,
Opt_last_int,
/* int args above */
Opt_last_string,
/* string args above */
Opt_read_only,
Opt_read_write,
/* Boolean args above */
Opt_last_bool,
Opt_err
};
static match_table_t rbd_opts_tokens = {
{Opt_queue_depth, "queue_depth=%d"},
/* int args above */
/* string args above */
{Opt_read_only, "read_only"},
{Opt_read_only, "ro"}, /* Alternate spelling */
{Opt_read_write, "read_write"},
{Opt_read_write, "rw"}, /* Alternate spelling */
/* Boolean args above */
{-1, NULL}
{Opt_err, NULL}
};
struct rbd_options {
int queue_depth;
bool read_only;
};
#define RBD_QUEUE_DEPTH_DEFAULT BLKDEV_MAX_RQ
#define RBD_READ_ONLY_DEFAULT false
static int parse_rbd_opts_token(char *c, void *private)
@ -761,27 +764,27 @@ static int parse_rbd_opts_token(char *c, void *private)
int token, intval, ret;
token = match_token(c, rbd_opts_tokens, argstr);
if (token < 0)
return -EINVAL;
if (token < Opt_last_int) {
ret = match_int(&argstr[0], &intval);
if (ret < 0) {
pr_err("bad mount option arg (not int) "
"at '%s'\n", c);
pr_err("bad mount option arg (not int) at '%s'\n", c);
return ret;
}
dout("got int token %d val %d\n", token, intval);
} else if (token > Opt_last_int && token < Opt_last_string) {
dout("got string token %d val %s\n", token,
argstr[0].from);
} else if (token > Opt_last_string && token < Opt_last_bool) {
dout("got Boolean token %d\n", token);
dout("got string token %d val %s\n", token, argstr[0].from);
} else {
dout("got token %d\n", token);
}
switch (token) {
case Opt_queue_depth:
if (intval < 1) {
pr_err("queue_depth out of range\n");
return -EINVAL;
}
rbd_opts->queue_depth = intval;
break;
case Opt_read_only:
rbd_opts->read_only = true;
break;
@ -789,9 +792,10 @@ static int parse_rbd_opts_token(char *c, void *private)
rbd_opts->read_only = false;
break;
default:
rbd_assert(false);
break;
/* libceph prints "bad option" msg */
return -EINVAL;
}
return 0;
}
@ -1563,22 +1567,39 @@ static void rbd_obj_request_end(struct rbd_obj_request *obj_request)
/*
* Wait for an object request to complete. If interrupted, cancel the
* underlying osd request.
*
* @timeout: in jiffies, 0 means "wait forever"
*/
static int rbd_obj_request_wait(struct rbd_obj_request *obj_request)
static int __rbd_obj_request_wait(struct rbd_obj_request *obj_request,
unsigned long timeout)
{
int ret;
long ret;
dout("%s %p\n", __func__, obj_request);
ret = wait_for_completion_interruptible(&obj_request->completion);
if (ret < 0) {
dout("%s %p interrupted\n", __func__, obj_request);
ret = wait_for_completion_interruptible_timeout(
&obj_request->completion,
ceph_timeout_jiffies(timeout));
if (ret <= 0) {
if (ret == 0)
ret = -ETIMEDOUT;
rbd_obj_request_end(obj_request);
return ret;
} else {
ret = 0;
}
dout("%s %p done\n", __func__, obj_request);
return 0;
dout("%s %p ret %d\n", __func__, obj_request, (int)ret);
return ret;
}
static int rbd_obj_request_wait(struct rbd_obj_request *obj_request)
{
return __rbd_obj_request_wait(obj_request, 0);
}
static int rbd_obj_request_wait_timeout(struct rbd_obj_request *obj_request,
unsigned long timeout)
{
return __rbd_obj_request_wait(obj_request, timeout);
}
static void rbd_img_request_complete(struct rbd_img_request *img_request)
@ -2001,11 +2022,11 @@ static struct rbd_obj_request *rbd_obj_request_create(const char *object_name,
rbd_assert(obj_request_type_valid(type));
size = strlen(object_name) + 1;
name = kmalloc(size, GFP_KERNEL);
name = kmalloc(size, GFP_NOIO);
if (!name)
return NULL;
obj_request = kmem_cache_zalloc(rbd_obj_request_cache, GFP_KERNEL);
obj_request = kmem_cache_zalloc(rbd_obj_request_cache, GFP_NOIO);
if (!obj_request) {
kfree(name);
return NULL;
@ -2376,7 +2397,7 @@ static void rbd_img_obj_request_fill(struct rbd_obj_request *obj_request,
}
if (opcode == CEPH_OSD_OP_DELETE)
osd_req_op_init(osd_request, num_ops, opcode);
osd_req_op_init(osd_request, num_ops, opcode, 0);
else
osd_req_op_extent_init(osd_request, num_ops, opcode,
offset, length, 0, 0);
@ -2848,7 +2869,7 @@ static int rbd_img_obj_exists_submit(struct rbd_obj_request *obj_request)
goto out;
stat_request->callback = rbd_img_obj_exists_callback;
osd_req_op_init(stat_request->osd_req, 0, CEPH_OSD_OP_STAT);
osd_req_op_init(stat_request->osd_req, 0, CEPH_OSD_OP_STAT, 0);
osd_req_op_raw_data_in_pages(stat_request->osd_req, 0, pages, size, 0,
false, false);
rbd_osd_req_format_read(stat_request);
@ -3122,6 +3143,7 @@ static struct rbd_obj_request *rbd_obj_watch_request_helper(
bool watch)
{
struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc;
struct ceph_options *opts = osdc->client->options;
struct rbd_obj_request *obj_request;
int ret;
@ -3148,7 +3170,7 @@ static struct rbd_obj_request *rbd_obj_watch_request_helper(
if (ret)
goto out;
ret = rbd_obj_request_wait(obj_request);
ret = rbd_obj_request_wait_timeout(obj_request, opts->mount_timeout);
if (ret)
goto out;
@ -3750,10 +3772,9 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
memset(&rbd_dev->tag_set, 0, sizeof(rbd_dev->tag_set));
rbd_dev->tag_set.ops = &rbd_mq_ops;
rbd_dev->tag_set.queue_depth = BLKDEV_MAX_RQ;
rbd_dev->tag_set.queue_depth = rbd_dev->opts->queue_depth;
rbd_dev->tag_set.numa_node = NUMA_NO_NODE;
rbd_dev->tag_set.flags =
BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_SG_MERGE;
rbd_dev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_SG_MERGE;
rbd_dev->tag_set.nr_hw_queues = 1;
rbd_dev->tag_set.cmd_size = sizeof(struct work_struct);
@ -3773,6 +3794,7 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
/* set io sizes to object size */
segment_size = rbd_obj_bytes(&rbd_dev->header);
blk_queue_max_hw_sectors(q, segment_size / SECTOR_SIZE);
blk_queue_max_segments(q, segment_size / SECTOR_SIZE);
blk_queue_max_segment_size(q, segment_size);
blk_queue_io_min(q, segment_size);
blk_queue_io_opt(q, segment_size);
@ -4044,7 +4066,8 @@ static void rbd_spec_free(struct kref *kref)
}
static struct rbd_device *rbd_dev_create(struct rbd_client *rbdc,
struct rbd_spec *spec)
struct rbd_spec *spec,
struct rbd_options *opts)
{
struct rbd_device *rbd_dev;
@ -4058,8 +4081,9 @@ static struct rbd_device *rbd_dev_create(struct rbd_client *rbdc,
INIT_LIST_HEAD(&rbd_dev->node);
init_rwsem(&rbd_dev->header_rwsem);
rbd_dev->spec = spec;
rbd_dev->rbd_client = rbdc;
rbd_dev->spec = spec;
rbd_dev->opts = opts;
/* Initialize the layout used for all rbd requests */
@ -4075,6 +4099,7 @@ static void rbd_dev_destroy(struct rbd_device *rbd_dev)
{
rbd_put_client(rbd_dev->rbd_client);
rbd_spec_put(rbd_dev->spec);
kfree(rbd_dev->opts);
kfree(rbd_dev);
}
@ -4933,6 +4958,7 @@ static int rbd_add_parse_args(const char *buf,
goto out_mem;
rbd_opts->read_only = RBD_READ_ONLY_DEFAULT;
rbd_opts->queue_depth = RBD_QUEUE_DEPTH_DEFAULT;
copts = ceph_parse_options(options, mon_addrs,
mon_addrs + mon_addrs_size - 1,
@ -4963,8 +4989,8 @@ out_err:
*/
static int rbd_add_get_pool_id(struct rbd_client *rbdc, const char *pool_name)
{
struct ceph_options *opts = rbdc->client->options;
u64 newest_epoch;
unsigned long timeout = rbdc->client->options->mount_timeout * HZ;
int tries = 0;
int ret;
@ -4979,7 +5005,8 @@ again:
if (rbdc->client->osdc.osdmap->epoch < newest_epoch) {
ceph_monc_request_next_osdmap(&rbdc->client->monc);
(void) ceph_monc_wait_osdmap(&rbdc->client->monc,
newest_epoch, timeout);
newest_epoch,
opts->mount_timeout);
goto again;
} else {
/* the osdmap we have is new enough */
@ -5148,7 +5175,7 @@ static int rbd_dev_probe_parent(struct rbd_device *rbd_dev)
rbdc = __rbd_get_client(rbd_dev->rbd_client);
ret = -ENOMEM;
parent = rbd_dev_create(rbdc, parent_spec);
parent = rbd_dev_create(rbdc, parent_spec, NULL);
if (!parent)
goto out_err;
@ -5394,9 +5421,6 @@ static ssize_t do_rbd_add(struct bus_type *bus,
rc = rbd_add_parse_args(buf, &ceph_opts, &rbd_opts, &spec);
if (rc < 0)
goto err_out_module;
read_only = rbd_opts->read_only;
kfree(rbd_opts);
rbd_opts = NULL; /* done with this */
rbdc = rbd_get_client(ceph_opts);
if (IS_ERR(rbdc)) {
@ -5422,11 +5446,12 @@ static ssize_t do_rbd_add(struct bus_type *bus,
goto err_out_client;
}
rbd_dev = rbd_dev_create(rbdc, spec);
rbd_dev = rbd_dev_create(rbdc, spec, rbd_opts);
if (!rbd_dev)
goto err_out_client;
rbdc = NULL; /* rbd_dev now owns this */
spec = NULL; /* rbd_dev now owns this */
rbd_opts = NULL; /* rbd_dev now owns this */
rc = rbd_dev_image_probe(rbd_dev, true);
if (rc < 0)
@ -5434,6 +5459,7 @@ static ssize_t do_rbd_add(struct bus_type *bus,
/* If we are mapping a snapshot it must be marked read-only */
read_only = rbd_dev->opts->read_only;
if (rbd_dev->spec->snap_id != CEPH_NOSNAP)
read_only = true;
rbd_dev->mapping.read_only = read_only;
@ -5458,6 +5484,7 @@ err_out_client:
rbd_put_client(rbdc);
err_out_args:
rbd_spec_put(spec);
kfree(rbd_opts);
err_out_module:
module_put(THIS_MODULE);