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575 Commits

Author SHA1 Message Date
Petr Rockai
a720420466 Fix two small (but eventually unbounded) leaks in daemon-server.c. 2011-07-20 18:23:33 +00:00
Petr Rockai
42e23dbf6c Can't have a global memory pool in lvmetad (that would constitute an ongoing 
memory leak) => remove it (it's been unused anyway).
 2011-07-20 16:49:21 +00:00
Petr Rockai
50ff3c076e Make lvmetad also report VGID in reply when adding a PV without MDAs (this 
obviously only works for VGs that already had at least some MDA discovered).
 2011-07-20 16:46:40 +00:00
Petr Rockai
4eb53158e5 Add code to lvmetad's testclient that scans an actual physical device, 
effectively emulating a future "pvscan --lvmetad" command.
 2011-07-20 15:15:41 +00:00
Petr Rockai
c33d33bab7 Make lvmetad report the VG ID and status (complete, partial) in reply to pv_add 
requests.
 2011-07-20 15:14:17 +00:00
Petr Rockai
2ef620ec7f Towards MISSING (PV) flag management in lvmetad. 2011-07-19 19:15:22 +00:00
Petr Rockai
3c238baf03 Work out some more details in metadata update in lvmetad. 2011-07-19 16:48:13 +00:00
Petr Rockai
9796bd4db6 More work on cache maintenance code in lvmetad: keep track of PV status. 2011-07-19 14:13:59 +00:00
Petr Rockai
252853560c Start filling in the core LVMetaD functionality and the corresponding 
testclient bits.
 2011-07-18 14:48:30 +00:00
Petr Rockai
372e9b3d64 Various improvements to the daemon-common code, including automated response 
formatting from config trees provided by the daemon implementation.
 2011-07-18 14:46:54 +00:00
Petr Rockai
aac236f4a8 Improve format_buffer in daemon-shared.c, adding block formatting in addition 
to string/integer (this propagates to the *simple* family of request/response
functionality).
 2011-07-18 14:42:44 +00:00
Alasdair Kergon
730cfc74b8 move doc to doc dir 2011-07-08 18:55:28 +00:00
Alasdair Kergon
c837830f6a report which dev was not found 2011-07-08 12:35:48 +00:00
Petr Rockai
14e012871f Differentiate the request and response format, in daemon/common. 2011-06-29 22:20:14 +00:00
Zdenek Kabelac
88fca3eff4 Annotate CLVMD_CMD_SYNC_NAMES in decode_cmd 2011-06-28 13:42:15 +00:00
Petr Rockai
94bb67ab37 Add int/str lookup routines specific to the reply (in client) and request (in 
server) for nicer-looking code (thin wrapping around find_config_{int,str}).
 2011-06-27 14:03:58 +00:00
Petr Rockai
aaca7f111f Also parse the config_tree on the client end (daemon-client.c). 2011-06-27 13:58:11 +00:00
Petr Rockai
55e300716f Parse the incoming config tree in daemon-server.c, providing the 
daemon-specific handler with a struct config_tree pointer to look things up in.
 2011-06-27 13:46:45 +00:00
Petr Rockai
9925977b07 LVMetaD build hack: link to lvm-internal &c. and add a simple test script. 2011-06-27 13:44:33 +00:00
Petr Rockai
4fcbeed6ef Implement daemon_send_simple and use it in the testclient. 2011-06-27 13:15:49 +00:00
Petr Rockai
308963261c Do not open the socket with SOCK_NONBLOCK in daemon-client, since we have no 
use for that behaviour (at least for now).
 2011-06-27 13:14:53 +00:00
Petr Rockai
ea32ca07e7 Call daemon_close before exit in the testclient. 2011-06-27 12:27:34 +00:00
Petr Rockai
5c1706e3ef Sketch out the actual on-wire format in daemon-client.h documentation, and add 
a simplified send interface.
 2011-06-27 12:26:54 +00:00
Petr Rockai
acf3616b3a Add a skeleton for lvmetad, a test client, and a temporary Makefile to build 
them. These are currently mostly for testing the daemon-common code. LVMetaD
functionality is expected to trickle in soon though.
 2011-06-14 02:36:38 +00:00
Petr Rockai
92658f5661 Common daemon code: Implement basic socket-based communication infrastructure 
(both client and server side). The server handles each connection in a separate
thread.
 2011-06-14 02:34:18 +00:00
Alasdair Kergon
df390f1799 Major pvmove fix to issue ioctls in the correct order when multiple LVs 
are affected by the move.  (Currently it's possible for I/O to become
trapped between suspended devices amongst other problems.

The current fix was selected so as to minimise the testing surface.  I
hope eventually to replace it with a cleaner one that extends the
deptree code.

Some lvconvert scenarios still suffer from related problems.
 2011-06-11 00:03:06 +00:00
Peter Rajnoha
554923e0ae Fix a few compile warnings. 
clvmd-command.c:84:2: warning: implicit declaration of function ‘init_test’
lvm-functions.c:141:3: warning: too many arguments for format
 2011-06-03 09:05:30 +00:00
Milan Broz
7c1a2417f5 Use /var/run/lvm for lvmetad socket. 2011-06-02 08:58:05 +00:00
Alasdair Kergon
0ebd0960b4 Propagate test mode to clvmd to skip activation and changes to held locks. 2011-06-01 21:16:55 +00:00
Petr Rockai
ba7d33be9c Mention code layout in lvmetad DESIGN. 2011-05-23 14:46:48 +00:00
Petr Rockai
dc85d3fb57 More work on the common daemon framework. Make things compile, too. 2011-05-15 11:02:29 +00:00
Petr Rockai
73ffd6e748 More scavenging of common daemon code, this time the clvmd local socket setup 
sequence.
 2011-05-13 09:34:12 +00:00
Petr Rockai
d7448a721b Start filling in some of the common daemon (server-side) functionality, taking 
dmeventd code as a starting point.
 2011-05-13 08:45:46 +00:00
Petr Rockai
04507b0ace First go at the lvmetad client-side interface. 2011-05-13 08:17:26 +00:00
Petr Rockai
56517bad21 First stab at the prototypes of the daemon-common functionality (to be 
eventually shared by dmeventd, lvmetad and clvmd).
 2011-05-13 08:07:28 +00:00
Petr Rockai
f03e3ac15b Initial design document for LVMetaD, building on the draft from June of last 
year, incorporating the outcomes of today's and yesterday's discussions.
 2011-05-12 17:49:46 +00:00
Petr Rockai
eee66d2a80 When glibc needs buffers for line buffering of input and output buffers, it 
allocates these buffers in such way it adds memory page for each such buffer
and size of unlock memory check will mismatch by 1 or 2 pages.

This happens when we print or read lines without '\n' so these buffers are
used. To avoid this extra allocation, use setvbuf to set these bufffers ahead.

Signed-off-by: Zdenek Kabelac <zkabelac@redhat.com>
Reviewed-by: Milan Broz <mbroz@redhat.com>
Reviewed-by: Petr Rockai <prockai@redhat.com>
 2011-05-07 13:50:11 +00:00
Zdenek Kabelac
a1eba521e3 Fix some unmatching sign comparation gcc warnings 
Simple replacement for unsigned type - usually in for() loops.
 2011-04-08 14:40:18 +00:00
Zdenek Kabelac
6b7fe2852a Use dm_snprintf 
and fix differently signed comparation.
 2011-04-08 14:18:40 +00:00
Petr Rockai
968cdc0066 Add rudimentary versioning to the dmevend protocol, allowing us to detect the 
(protocol) version of the running dmeventd on the client side.

Right now this is only used in dmeventd -R.
 2011-04-04 16:11:09 +00:00
Zdenek Kabelac
81e269fe15 Keep noreturn attribute for lvm_thread_fn 
Even thought my gcc seems to not need it, as it's deduced from pthread_exit(),
keep it here for older compiler to avoid getting warnings.
 2011-03-30 12:48:16 +00:00
Zdenek Kabelac
e3cce4b66a Better shutdown for clvmd 
'a small step' towards cleaner shutdown sequence.
Normally clvmd doens't care about unreleased memory on exit -
but for valgrind testing it's better to have them cleaned all.

So - few things are left on exit path - this patch starts to remove
just some of them.

1. lvm_thread_fs is made as a thread which could be joined on exit()
2. memory allocated to local_clien_head list is released.
   (this part is somewhat more complex if the proper reaction is
   needed - and as it requires some heavier code moving - it will
   be resolved later.
 2011-03-30 12:36:19 +00:00
Zdenek Kabelac
6460d5a405 Add attribute printf 
gcc suggested to add these attributes to instrumentat
printf arguments. Adding it for internal functions as well.
 2011-03-29 21:53:46 +00:00
Zdenek Kabelac
7f0d89f8b4 Fix sending uninitilised bytes in cluster messages 
Fix 2 more functions sending cluster messages to avoid passing uninitilised bytes
and compensate 1 extra byte attached to the message from the clvm_header.args[1]
member variable.
 2011-03-29 21:05:39 +00:00
Zdenek Kabelac
aaf92617b0 Fix -Wold-style-definition gcc warnings 2011-03-29 20:30:05 +00:00
Zdenek Kabelac
dc4150e018 Release allocated memory on closedown 
Release allocated buffers before exit() in debug singlenode - so it's not
poping out in valgrind as memory leak.
 2011-03-24 10:45:00 +00:00
Peter Rajnoha
2011571bf5 Remove compile warning for lock_id. 
%llx --> PRIx64
 2011-03-13 18:08:26 +00:00
Zdenek Kabelac
ee12300a56 Do not send random bytes in message 
Fixing few issues:

struct clvm_header  contains  'char args[1]' - so adding '+ 1' here
for message length calculation is 1 byte off.
Message with last byte uninitialized is then passed to write function.
Update also related arglen.

Initialise xid and clintid to 0.

Memory allocation is checked for NULL
 2011-03-08 22:48:50 +00:00
Milan Broz
5a47eb762a Fix clvmd return code for bad options. 
We should return exit code 2 for unknown option.

Patch also adds standard --help option instead.

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=666991
 2011-03-08 13:27:39 +00:00
Peter Rajnoha
eb36643cb7 Lower severity of selabel_lookup and matchpathcon failure to log_debug. 2011-03-03 13:05:40 +00:00