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Commit Graph

87 Commits

Author SHA1 Message Date
Alasdair Kergon
0c86ac44a9 fix unused o_direct label 2005-04-07 12:25:33 +00:00
Alasdair Kergon
864de9cee1 Allow offline extension of snapshot volumes.
NB Requires kernel patch that is not upstream.
2005-04-07 12:17:46 +00:00
Alasdair Kergon
1165258cda Alignment tidying. 2005-04-06 13:47:41 +00:00
Alasdair Kergon
e5b836d2d6 Improve detection of external changes affecting internal cache. 2005-03-21 22:40:35 +00:00
Alasdair Kergon
162d85b97b Add 'already in device cache' debug message. 2005-03-21 14:51:49 +00:00
Alasdair Kergon
b9565b406a Cope with new devices appearing by rescanning /dev if a uuid can't be found. 2005-03-08 13:46:17 +00:00
Alasdair Kergon
aa70fe8b71 Suppress 'open failed' error messages during scanning. 2005-03-03 21:54:35 +00:00
Alasdair Kergon
165f49ba1d Fix device reference counting on re-opens. 2004-12-21 20:23:16 +00:00
Alasdair Kergon
d46fd67fb6 Skip devices that are too small to be PVs. 2004-12-21 17:54:52 +00:00
Alasdair Kergon
9ec484617a Cope with empty msdos partition tables. 2004-12-21 16:10:25 +00:00
Alasdair Kergon
5e94864311 Reopen RO file descriptor RW if necessary. 2004-12-12 21:47:14 +00:00
Alasdair Kergon
09a7dce6be Additional device-handling debug messages.
Additional verbosity level -vvvv includes line numbers and backtraces.
Verbose messages now go to stderr not stdout.
Close any stray file descriptors before starting.
Refine partitionable checks for certain device types.
Allow devices/types to override built-ins.
2004-12-10 16:01:35 +00:00
Alasdair Kergon
39de4a2a56 Extend dev_open logging. 2004-12-09 16:56:51 +00:00
Alasdair Kergon
66f0408473 xlate compilation fix 2004-11-27 22:07:41 +00:00
Alasdair Kergon
bbdab3fc9e Endian fix to signature detection. 2004-11-27 21:37:54 +00:00
Alasdair Kergon
57b8df3e45 fix partition table signature size 2004-11-26 14:40:34 +00:00
Alasdair Kergon
2e6051674b Fix to partition table detection code. 2004-11-24 20:38:05 +00:00
Alasdair Kergon
bd46a496c7 pool debugging 2004-11-23 18:23:23 +00:00
Alasdair Kergon
985ef4617f Detect partition table signature. 2004-11-23 11:44:04 +00:00
Alasdair Kergon
b2dd0bb1d0 Separate out md superblock detection code. 2004-11-18 20:02:21 +00:00
Alasdair Kergon
60bd717971 Use O_NOATIME on devices if available. 2004-09-14 22:23:23 +00:00
Alasdair Kergon
1c31f23f56 Add a const. 2004-08-11 13:15:35 +00:00
Alasdair Kergon
96185e9ca1 Use 64-bit file functions. 2004-04-16 18:43:29 +00:00
Alasdair Kergon
6606c3ae81 Update copyright notices. 2004-03-30 19:35:44 +00:00
Alasdair Kergon
08c419da66 Don't recurse symlinked dirs such as /dev/fd on 2.6. 2004-02-13 18:55:43 +00:00
Alasdair Kergon
82c86650e1 Define BLKGETSIZE64 on systems with out-of-date header files. 2004-01-27 20:53:57 +00:00
Alasdair Kergon
e19f549a11 Fix support for PVs on read only devices. [Still must set LVs read only] 2003-11-21 19:54:40 +00:00
Alasdair Kergon
ee8518bd9c lvcreate should close the initialised snapshot device immediately. 2003-11-14 17:55:39 +00:00
Alasdair Kergon
27642fade0 Fix dev_zero() offset. 2003-11-13 23:55:03 +00:00
Alasdair Kergon
2dc95e1c41 Configuration-time O_DIRECT setting. 2003-11-06 17:14:06 +00:00
Alasdair Kergon
914c97239f Another sync point - numerous fixes & clean ups. 2003-07-04 22:34:56 +00:00
Alasdair Kergon
4b7af6da11 Add comment 2003-04-30 15:21:10 +00:00
Alasdair Kergon
fe451a01e8 Try alternative syncs if BLKFLSBUF fails. 2003-04-28 16:20:39 +00:00
Alasdair Kergon
b896caa19b Improve build robustness. 2003-04-15 13:24:42 +00:00
Alasdair Kergon
26e7f2e0c4 Tidy various pre-processing incl. making libdl optional. 2003-03-24 18:08:53 +00:00
Alasdair Kergon
4970ebfb92 o Additional device/filter-level debugging messages + duplicate alias fix
o 32/64-bit size_t fix (pjc)
2003-01-08 16:41:22 +00:00
Alasdair Kergon
4aae68792c When there are device name aliases, choose the "nicest" to display. 2003-01-03 21:11:23 +00:00
Alasdair Kergon
8ef2b021ed Default stripesize 64k & config file setting for it;
Clear many compiler warnings (i386) & associated bugs - hopefully without
introducing too many new bugs:-)  (Same exercise required for other archs.)
Default compilation has optimisation - or else use ./configure --enable-debug
2002-12-19 23:25:55 +00:00
Alasdair Kergon
d1d9800ef1 Refactoring. 2002-11-18 14:01:16 +00:00
Patrick Caulfield
da253e3aac Remove O_DIRECT as it causes problems with some systems.
Harumph.
2002-08-14 14:58:00 +00:00
Patrick Caulfield
6b3b4a250b Use O_DIRECT for writing to devices.
Doesn't work on HPPA due to a kernel bug but other archs shuld be OK.
2002-07-22 08:10:54 +00:00
Patrick Caulfield
b40b90f035 Flush on open as well as close. 2002-06-25 14:02:28 +00:00
Alasdair Kergon
6b4c9ff740 Some partial VG support with format_text. 2002-04-30 17:12:37 +00:00
Alasdair Kergon
25b733809a Merge with text format branch.
Lots of changes/very little testing so far => there'll be bugs!

Use 'vgcreate -M text' to create a volume group with its metadata stored
in text files.  Text format metadata changes should be reasonably atomic,
with a (basic) automatic recovery mechanism if the system crashes while a
change is in progress.

Add a metadata section to lvm.conf to specify multiple directories if
you want (recommended) to keep multiple copies of the metadata (eg on
different filesystems).

e.g. metadata {
        dirs = ["/etc/lvm/metadata1","/usr/local/lvm/metadata2"]
}

Plenty of refinements still in the pipeline.
2002-04-24 18:20:51 +00:00
Joe Thornber
e3528bcda7 o Stop printing errors if flushing fails (could be an unconfigured device). 2002-04-24 08:37:34 +00:00
Joe Thornber
f31c47ade8 o Perform a BLKFLSBUF ioctl whenever a block device is closed.
Patrick, can you see if this fixes your cluster syncing problem please ?
If so I'll make it so it only syncs if you have actually written to the
device.
2002-04-08 18:59:50 +00:00
Joe Thornber
b00094bdeb o hash_iterate -> hash_iter 2002-02-25 11:54:15 +00:00
Alasdair Kergon
b849de1d18 Fix the device cache to cope reasonably safely with device name changes.
This should be a rare occurrence so the aim is to recover if it's
straightforward to do so, otherwise just to abort the operation.
If people *knowingly* change device names, they should always run vgscan
afterwards.

A few bytes of memory gets leaked inside a pool each time an alias
has to be discarded - it's not worth restructuring the code to reuse it.

More of LVM2 needs updating to pass device objects (or uuids) about
instead of pathnames so that resolution of pathname->object only happens
once per operation.

dev_cache_get() should now always return the *current* device at the path given

dev_name_confirmed() replaces dev_name() whenever it's important to
know that name for the device is still current (ie when opening it).
If the cache doesn't know a current name, the function fails.

dev_open() guarantees that the file descriptor returned is for the dev_t
of the device structure it was passed.
2002-01-24 23:16:19 +00:00
Alasdair Kergon
333658d5f8 Fix dev_close arg. 2002-01-24 13:31:18 +00:00
Alasdair Kergon
610c25e8b1 o Remove redundant symlink-handling code.
o When opening device, return error if its cached name is incorrect (eg if
  it's changed since the cache was generated).  This prevents use until
  the cache is rebuilt (eg with vgscan).  Doesn't catch every case.
2002-01-23 18:55:01 +00:00