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In the past it was common for a single command to run
multiple lvmcache_label_scan, and this code was a way
to make each call select the same duplicate pvs. Now
commands run a single lvmcache_label_scan, so this is
not needed.
When reseting stream buffer - check for being run within valgrind
and only in this case skip this code.
Define VALGRIND_POOL was incorrectly used for this logic.
Let's move proc into include/configure.h so this define can
be easily used across the source base.
Configure defines it - but ATM we do not provide any configure
option to change it - there should be no need to ever change it.
Let's stop Coverity thinking here we are using freed FILE*
for anything else then comparing numbers.
For this use the original source of old_stream pointer.
Add new configurable option for building lvm2 with enable/disable
default autoactivation setting.
Might be useful for building i.e. rpms for systems where
this event_activation is not desired.
Thin-pool and cache-pool targets got already quite stable so let's try
to remove checking of pools when using lvremove or vgremove commands.
This skips checking pools when they are going to be removed, but it
also when removing thin volume that was the only user of a thin-pool.
In this case thin-pool will be still there and could be activated
again with another thin volume and thin_check will be executed
in this moment. In this case it can delay discovery of metadata damage.
Shortens processing of 'lvcreate -L -V -T' command and
avoid deactivation and its activation with thin_check of the empty
created thin-pool that will be used for the new thin volume
made with a single lvcreate command.
Shuffle code to parsing VDO message also for lvs segment status
so it can report correctly data usage for VDO LVs.
For this change move code and also change its API to use just mempool.
Fixes usage with upstream 6.9 vdo target driver.
When using message API for parsing VDO stats info, 0 was wrongly
used for fallback for trying the old sysfs API.
Switch to use ULLONG_MAX for values that could not have been obtained
through the message call.
Fixes lvdisplay info for freshly created VDO volume with 0 used data
blocks.
Make a seperate function to decode which ID should be user
for cvol meta or data volume - also avoids duplication of code.
As a result it's now also easier to see how the lvid is build.
Add internal inline function wrapper for dm_strncpy().
Use it for calls where we test the result.
Avoids emitting warnings in Coverity for unchecked usage.
Avoid problems for other libc like muslc and use dm_basename.
Prototype for basename has been removed from string.h from latest musl [1]
compilers e.g. clang-18 flags the absense of prototype as error. therefore
include libgen.h for providing it.
[1] https://git.musl-libc.org/cgit/musl/commit/?id=725e17ed6dff4d0cd22487bb64470881e86a92e7
Reported-by: Khem Raj <raj.khem@gmail.com>
Add debug tracing for syscall failures.
Also switch some log_error to log_warn when command does not exit
with 'error' result and only warns user.
Easier error path handling.
Initialize some vars at declaration time.
When using cached LV with cachevols (so not with cachepool),
the loaded table could have been using more then one mapping line
for sub devices - resulting into data corruption in some cases
when i.e. taking snapshot of such cached LV with and instead of
single line - 2 lines were generated into DM table as the code
skipped protection again repeated addition.
vg-fast_cvol-cdata: 0 16384 linear 253:2 16384
vg-fast_cvol-cdata: 16384 16384 linear 253:2 16384
New code is also refactoring to use _add_new_cvol_subdev_to_dtree
(similar _add_cvol_subdev.. ) and also the addition of subdev has
been moved after check for already processed node.
Also the cachevol sub devices are now added with the insertion
of cachevol with cached LV.
