linux.git/net/ceph, branch v4.7-rc4

libceph: use %s instead of %pE in dout()s

2016-05-30T21:00:23+00:00

Commit d30291b985d1 ("libceph: variable-sized ceph_object_id") changed
dout()s in what is now encode_request() and ceph_object_locator_to_pg()
to use %pE, mostly to document that, although all rbd and cephfs object
names are NULL-terminated strings, ceph_object_id will handle any RADOS
object name, including the one containing NULs, just fine.

However, it turns out that vbin_printf() can't handle anything but ints
and %s - all %p suffixes are ignored.  The buffer %p** points to isn't
recorded, resulting in trash in the messages if the buffer had been
reused by the time bstr_printf() got to it.

Signed-off-by: Ilya Dryomov

libceph: put request only if it's done in handle_reply()

2016-05-30T21:00:23+00:00

handle_reply() may be called twice on the same request: on ack and then
on commit.  This occurs on btrfs-formatted OSDs or if cephfs sync write
path is triggered - CEPH_OSD_FLAG_ACK | CEPH_OSD_FLAG_ONDISK.

handle_reply() handles this with the help of done_request().

Fixes: 5aea3dcd5021 ("libceph: a major OSD client update")
Signed-off-by: Ilya Dryomov

libceph: change ceph_osdmap_flag() to take osdc

2016-05-30T21:00:22+00:00

For the benefit of every single caller, take osdc instead of map.
Also, now that osdc->osdmap can't ever be NULL, drop the check.

Signed-off-by: Ilya Dryomov

libceph: make ceph_osdc_wait_request() uninterruptible

2016-05-25T23:15:40+00:00

Ceph_osdc_wait_request() is used when cephfs issues sync IO. In most
cases, the sync IO should be uninterruptible. The fix is use killale
wait function in ceph_osdc_wait_request().

Signed-off-by: Yan, Zheng

ceph: make logical calculation functions return bool

2016-05-25T23:15:39+00:00

This patch makes serverl logical caculation functions return bool to
improve readability due to these particular functions only using 0/1
as their return value.

No functional change.

Signed-off-by: Zhang Zhuoyu

libceph: support for subscribing to "mdsmap." maps

2016-05-25T23:15:30+00:00

Signed-off-by: Ilya Dryomov

libceph: replace ceph_monc_request_next_osdmap()

2016-05-25T23:15:30+00:00

... with a wrapper around maybe_request_map() - no need for two
osdmap-specific functions.

Signed-off-by: Ilya Dryomov

libceph: take osdc->lock in osdmap_show() and dump flags in hex

2016-05-25T23:15:29+00:00

There is now about a dozen CEPH_OSDMAP_* flags.  This is a debugging
interface, so just dump in hex instead of spelling each flag out.

Signed-off-by: Ilya Dryomov

libceph: pool deletion detection

2016-05-25T23:15:29+00:00

This adds the "map check" infrastructure for sending osdmap version
checks on CALC_TARGET_POOL_DNE and completing in-flight requests with
-ENOENT if the target pool doesn't exist or has just been deleted.

Signed-off-by: Ilya Dryomov

libceph: async MON client generic requests

2016-05-25T23:15:29+00:00

For map check, we are going to need to send CEPH_MSG_MON_GET_VERSION
messages asynchronously and get a callback on completion.  Refactor MON
client to allow firing off generic requests asynchronously and add an
async variant of ceph_monc_get_version().  ceph_monc_do_statfs() is
switched over and remains sync.

Signed-off-by: Ilya Dryomov