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Move memory declaration helpers outside mdadm.h. They seems to be
useful so keep them but include separatelly. Rework them to not reffer
to Name[] declared internally in mdadm/mdmon.
This is first step to start decomplexing mdadm.h.
Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
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Fix check_return issue in load_gpt() reported by SAST analysis in
super-gpt.c.
Signed-off-by: Anna Sztukowska <anna.sztukowska@intel.com>
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mdassemble doesn't handle container based arrays, no support for sysfs,
etc. It has not been actively maintained for years, so time to send it
off to retirement.
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
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Add a new parameter to mdadm: --consistency-policy=. It determines how
the array maintains consistency in case of unexpected shutdown. This
maps to the md sysfs attribute 'consistency_policy'. It can be used to
create a raid5 array using PPL. Add the necessary plumbing to pass this
option to metadata handlers. The write journal and bitmap
functionalities are treated as different policies, which are implicitly
selected when using --write-journal or --bitmap options.
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
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mdadm is using invalid byte-offset while reading GPT header to get
partition info (size, first sector, last sector etc.). Now this offset
is hardcoded to 512 bytes and it is not valid for disks with sector
size different than 512 bytes because MBR and GPT headers are aligned
to LBA, so valid offset for 4k drives is 4096 bytes.
Signed-off-by: Mariusz Dabrowski <mariusz.dabrowski@intel.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
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make dprintf() print program name and __func__, so that
this messaging is consistent.
Also remove all __func__ messages from pr_err(). We shouldn't
leak that internal data in error message.
If we really want function name there, we new pr_XXX might
be wanted.
Signed-off-by: NeilBrown <neilb@suse.de>
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Now that I am using white-space mode in Emacs I can see all of this,
and I don't like it :-)
Signed-off-by: NeilBrown <neilb@suse.de>
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Now that we use O_DIRECT for all device IO, BLKFLSBUF is not needed to
ensure we get current data, and it can impose a cost if any flush-out
is needed. So remove it.
To be safe, add O_DIRECT to one place where it isn't currently used:
when reading a bitmap.
Signed-off-by: NeilBrown <neilb@suse.de>
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This is needed to return correct available size. It isn't
really used yet.
Signed-off-by: NeilBrown <neilb@suse.de>
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malloc should never fail, and if it does it is unlikely
that anything else useful can be done. Best approach is to
abort and let some super-daemon restart.
So define xmalloc, xcalloc, xrealloc, xstrdup which don't
fail but just print a message and exit. Then use those
removing all the tests for failure.
Also replace all "malloc;memset" sequences with 'xcalloc'.
Signed-off-by: NeilBrown <neilb@suse.de>
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'pr_err("' is a lot shorter than 'fprintf(stderr, Name ": '
cont_err() is also available.
Signed-off-by: NeilBrown <neilb@suse.de>
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This is needed on 4K block devices such as DASD as we do O_DIRECT
reads.
Do the same alignment for gpt just to be safe.
Signed-off-by: NeilBrown <neilb@suse.de>
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Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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When chunk size is not set from command line we need to guess it
depending on metadata given on command line or found on listed devices.
Validate_geometry sets the default for it's metadata if chunk is not set.
For external metadata chunk is set only when creating in a container.
For imsm validate_geometry_imsm_orom is responsible for finding default
chunk depending on container metadata loaded. Container will already know
which controller it is attached to, and have this controllers orom
available.
do_default_chunk indicates that we need to find default chunk and
if validate_geometry fails for some metadata it tells us to reset chunk
that may have been set.
Current solution would set default chunk correctly for imsm only if
container device was given on command line. With the list of devices
chunk was always set to 512.
Signed-off-by: Anna Czarnowska <anna.czarnowska@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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Make "make everything" succeed.
This fixed some real bugs.
Signed-off-by: NeilBrown <neilb@suse.de>
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Nothing relies on this any more, so remove it.
Signed-off-by: NeilBrown <neilb@suse.de>
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To accurately detect when an array has been split and is now being
recombined, we need to track which other devices each thinks is
working.
We should never include a device in an array if it thinks that the
primary device has failed.
This patch just allows get_info_super to return a list of devices
and whether they are thought to be working or not.
Signed-off-by: NeilBrown <neilb@suse.de>
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This allows mdadm to work with gpt metadata to a limited extent.
Signed-off-by: NeilBrown <neilb@suse.de>
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