linux.git/net/ceph, branch v3.0-rc2 Linux kernel source tree libceph: subscribe to osdmap when cluster is full 2011-05-24T18:52:11+00:00 Sage Weil sage@newdream.net 2011-05-12T16:29:18+00:00 cd634fb6eec72ef8e6dd677546b8d0ffdd2501eb When the cluster is marked full, subscribe to subsequent map updates to ensure we find out promptly when it is no longer full. This will prevent us from spewing ENOSPC for (much) longer than necessary. Signed-off-by: Sage Weil <sage@newdream.net> 
When the cluster is marked full, subscribe to subsequent map updates to
ensure we find out promptly when it is no longer full.  This will prevent
us from spewing ENOSPC for (much) longer than necessary.

Signed-off-by: Sage Weil <sage@newdream.net>
libceph: handle new osdmap down/state change encoding 2011-05-24T18:52:09+00:00 Sage Weil sage@newdream.net 2011-05-03T19:52:05+00:00 7662d8ff57d2b00ce8f7fe0b60a85efbb2c05652 Old incrementals encode a 0 value (nearly always) when an osd goes down. Change that to allow any state bit(s) to be flipped. Special case 0 to mean flip the CEPH_OSD_UP bit to mimic the old behavior. Signed-off-by: Sage Weil <sage@newdream.net> 
Old incrementals encode a 0 value (nearly always) when an osd goes down.
Change that to allow any state bit(s) to be flipped.  Special case 0 to
mean flip the CEPH_OSD_UP bit to mimic the old behavior.

Signed-off-by: Sage Weil <sage@newdream.net>
ceph: check return value for start_request in writepages 2011-05-19T18:25:05+00:00 Sage Weil sage@newdream.net 2011-05-12T22:48:16+00:00 9d6fcb081a4770c3772c51c59c7251c22716d7bb Since we pass the nofail arg, we should never get an error; BUG if we do. (And fix the function to not return an error if __map_request fails.) Signed-off-by: Sage Weil <sage@newdream.net> 
Since we pass the nofail arg, we should never get an error; BUG if we do.
(And fix the function to not return an error if __map_request fails.)

Signed-off-by: Sage Weil <sage@newdream.net>
libceph: add missing breaks in addr_set_port 2011-05-19T18:25:05+00:00 Sage Weil sage@newdream.net 2011-05-12T22:34:24+00:00 a2a79609c044d3ddb540671d5029a41c90c57251 Signed-off-by: Sage Weil <sage@newdream.net> 
Signed-off-by: Sage Weil <sage@newdream.net>
libceph: fix TAG_WAIT case 2011-05-19T18:25:04+00:00 Sage Weil sage@newdream.net 2011-05-12T22:33:17+00:00 04177882265bc5014300a631e7384f8fe6b6aa0f If we get a WAIT as a client something went wrong; error out. And don't fall through to an unrelated case. Signed-off-by: Sage Weil <sage@newdream.net> 
If we get a WAIT as a client something went wrong; error out.  And don't
fall through to an unrelated case.

Signed-off-by: Sage Weil <sage@newdream.net>
libceph: fix osdmap timestamp assignment 2011-05-19T18:25:03+00:00 Sage Weil sage@newdream.net 2011-05-12T22:18:43+00:00 31456665a02148353a83fec84d3182700e356588 Signed-off-by: Sage Weil <sage@newdream.net> 
Signed-off-by: Sage Weil <sage@newdream.net>
libceph: use snprintf for unknown addrs 2011-05-19T18:25:03+00:00 Sage Weil sage@newdream.net 2011-05-12T21:34:04+00:00 12a2f643b0e6e791ba61485430d0003eeb3e373c Signed-off-by: Sage Weil <sage@newdream.net> 
Signed-off-by: Sage Weil <sage@newdream.net>
libceph: use snprintf for formatting object name 2011-05-19T18:25:02+00:00 Sage Weil sage@newdream.net 2011-05-12T21:29:51+00:00 2dab036b8c349d747f447ac98c8eb40c769727a8 Signed-off-by: Sage Weil <sage@newdream.net> 
Signed-off-by: Sage Weil <sage@newdream.net>
libceph: fix uninitialized value when no get_authorizer method is set 2011-05-19T18:25:02+00:00 Sage Weil sage@newdream.net 2011-05-12T21:18:42+00:00 e8f54ce169125a2e59330fac25ad3c9ac0ce22a5 If there is no get_authorizer method we set the out_kvec to a bogus pointer. The length is also zero in that case, so it doesn't much matter, but it's better not to add the empty item in the first place. Signed-off-by: Sage Weil <sage@newdream.net> 
If there is no get_authorizer method we set the out_kvec to a bogus
pointer.  The length is also zero in that case, so it doesn't much matter,
but it's better not to add the empty item in the first place.

Signed-off-by: Sage Weil <sage@newdream.net>
libceph: handle connection reopen race with callbacks 2011-05-19T18:21:05+00:00 Sage Weil sage@newdream.net 2011-05-19T18:21:05+00:00 0da5d70369e87f80adf794080cfff1ca15a34198 If a connection is closed and/or reopened (ceph_con_close, ceph_con_open) it can race with a callback. con_work does various state checks for closed or reopened sockets at the beginning, but drops con->mutex before making callbacks. We need to check for state bit changes after retaking the lock to ensure we restart con_work and execute those CLOSED/OPENING tests or else we may end up operating under stale assumptions. In Jim's case, this was causing 'bad tag' errors. There are four cases where we re-take the con->mutex inside con_work: catch them all and return EAGAIN from try_{read,write} so that we can restart con_work. Reported-by: Jim Schutt <jaschut@sandia.gov> Tested-by: Jim Schutt <jaschut@sandia.gov> Signed-off-by: Sage Weil <sage@newdream.net> 
If a connection is closed and/or reopened (ceph_con_close, ceph_con_open)
it can race with a callback.  con_work does various state checks for
closed or reopened sockets at the beginning, but drops con->mutex before
making callbacks.  We need to check for state bit changes after retaking
the lock to ensure we restart con_work and execute those CLOSED/OPENING
tests or else we may end up operating under stale assumptions.

In Jim's case, this was causing 'bad tag' errors.

There are four cases where we re-take the con->mutex inside con_work: catch
them all and return EAGAIN from try_{read,write} so that we can restart
con_work.

Reported-by: Jim Schutt <jaschut@sandia.gov>
Tested-by: Jim Schutt <jaschut@sandia.gov>
Signed-off-by: Sage Weil <sage@newdream.net>