mdadm.git/Makefile, branch master

mdmon: satisfy glibc tls abi requirements with pthreads

2010-07-06T19:48:56+00:00

Setting up a proper tls descriptor is required to conform to the abi
[1].  Until it can be implemented in mdmon use pthreads instead of
clone(2) to let glibc handle the details.  The old behaviour can be had
by un-defining USE_PTHREADS.

Note, the "O2" builds need LDFLAGS now to pick up the '-pthread' option.

[1]: http://people.redhat.com/drepper/tls.pdf

Signed-off-by: Dan Williams

mdmon: prevent allocations due to late binding

2010-07-02T00:28:14+00:00

Current versions of glibc do not provide a useable interface to clone(2) as it
inflicts hidden dependencies on setting up a glibc specific tls
descriptor.  The dynamic linker trips this dependency and causes mdmon
to intermittently fail to load.  Resolving all dynamic linking prior to
starting the monitor thread appears to mitigate the issue but there is no
guarantee that another tls dependency will bite us later.

However, while the debate continues with the glibc maintainers it seems
prudent to keep this change.  It ensures that we do not get into a
situation where the monitor thread needs to make a late allocation to
resolve a symbol.

Signed-off-by: Dan Williams

Compile-time switch to enable 0.9 metadata as default

2010-05-31T02:52:37+00:00

This commit introduces DEFAULT_OLD_METADATA as a preprocessor
definition. If defined, it causes mdadm to assume metadata version 0.9
as default. If not defined, version 1.x (currently 1.2) is used as
default.

The man page mdadm.8 is also modified to reflect the chosen default.

The selftests will not work if the old default is chosen.

This patch was requested by Debian so they could distribute a current
mdadm together with boot loaders that only understand 0.90 metadata
for md-raid.

Preferred usage is simply
   make DEFAULT_OLD_METADATA=yes


Signed-off-by: martin f. krafft 
Signed-off-by: NeilBrown

Fixup default definitions of VAR_RUN and ALT_RUN

2010-04-15T05:29:49+00:00

I suspect commit c132678b wanted VAR_RUN and ALT_RUN to be suffixed by
'/mdadm' to match the defaults in mdadm.h.

Cc: Luca Berra 
Signed-off-by: Dan Williams 
Signed-off-by: NeilBrown

mapfile: if we putting the mapfile in a custom location via ALT_RUN, allow

2010-03-23T22:37:34+00:00

a custom filename too.

Signed-off-by: Doug Ledford

Release mdadm-3.1.2

2010-03-10T04:58:46+00:00

allow redefinition of VAR_RUN

2010-03-03T01:23:30+00:00

having mdmon socket under var is painful at shutdown time

Signed-off-by: Luca Berra 
Signed-off-by: NeilBrown

Add _FORTIFY_SOURCE to mdadm.O2 build.

2010-03-02T23:54:17+00:00

When building mdadm.O2, set _FORTIFY_SOURCE to get more
warnings, and also build mdmon.O2 to find warnings in that
code too.
Then fix the warnings.

Suggested-by: Luca Berra 
Signed-off-by: NeilBrown

mdmon: allow pid to be stored in different directory.

2010-02-04T05:47:28+00:00

/var/run probably doesn't persist from early boot.
So if necessary, store in in /lib/init/rw or somewhere else
that does persist.

Signed-off-by: NeilBrown

Move WaitClean from Monitor.c to sysfs.c

2009-06-02T05:27:16+00:00

That way mdmon doesn't need to include Monitor.o

Signed-off-by: NeilBrown