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Makes the code more readable and has a smaller number of memory
accesses thus it's small optimisation as well.
For _get_token() optimize number parsing. Check for '.' char only
if it's not a digit. Move pointer incrementation into one place.
For _eat_space() check only p->te for '\0' in skipping of comment line.
Avoid check for '\0' when we know it is space. Also master while loop
doesn't need checking p->tb for '\0'. We just need to check p->tb
isn't already at the end of buffer. This could give 'extra' loop cycle
if we are already there - but safes memory access in every other case.
Add _lv_postorder_vg() - for calling _lv_postorder() for every LV from VG.
We use this in 2 places - vg_mark_partial_lvs() and vg_validate()
so make it as a one function.
Benefit here is - to use only one cleanup code and avoid
potentially duplicate scans of same LVs.
Copy this file as '.gdbinit' to your home directory or your working
directory. It adds the following commands to gdb:
- first_seg
- lv_status
- lv_status_r
- lv_is_mirrored
- seg_item
- seg_status
- segs_using_this_lv
You can get a list of these user-defined commands by typing:
(gdb) help user-defined
You can get more information on each command by typing:
(gdb) help <command>
Accelerate validation loop by using lvname, lvid, pvid hash tables.
Also merge pvl loop into one cycle now - no need to scan the list twice.
List scan is stopped when dm_hash_insert fails.
The error message with loop_counter1 is no longer provided - however
the message has been misleading anyway.
dm_hash binary functions takes void* key - so there is no need to cast
pointers to char* (also the hash key does not have trailing '\0').
This is slight API change, but presents no change for the API user side
it just allows to write code easier as the casting could be removed.
Create new function alloc_vg() to allocate VG structure.
It takes pool_name (for easier debugging).
and also take vg_name to futher simplify code.
Move remainder of _build_vg_from_pds to _pool_vg_read
and use vg memory pool for import functions.
(it's been using smem -> fid mempool -> cmd mempool)
(FIXME: remove mempool parameter for import functions and use vg).
Move remainder of the _build_vg to _format1_vg_read
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
When the ->params string is empty - memory access is made on the byte
before allocated buffer (catched by valgrind) - in the case it would
constain 0x20 - it would even overwrite this buffer.
So fix by checking len > 0 before doing such access.
Also slightly optimise this loop from repeated strlen call.
lvseg_segtype_dup used memory pool vg memory pool for strind duplication.
However this one gets released before reporting happens so the command like:
pvs -o segtype
prints data from already released memory pool. Thanks to the fact there
is not much allocation happing after the VG is released, the memory
stays unmodified and correct result is printed.
Fix adds support for mempool passed parameter (like other similar
query commands) and uses dm_report memory pool for string duplication.
Failure on pipe kills lv command and produces memory stacktrace.
Add 'true' for empty grep/sed to avoid generating stacktrace.
This should help with long time (7min) for this test on Lenny testing maching
(mimage was filler with stacktrace and each word was used as LV name).
This lvconvert is now able to complete operation automatically without question.
So remove 'echo y |' - it's breaking pipe on some bash versions.
i.e.:
+ echo y
./t-lvconvert-mirror-basic.sh: line 104: echo: write error: Broken pipe
while command has completed this operation succesfully
While STRIPE_SIZE_LIMIT * 2 is basically UINT_MAX, 32bit integer
value can already overflow durin arg size parsing.
(This really happens in test where --stripesize 4294967291 is used,
in s390x uint overflow and this test is ineffective.)
- returned char not needed to be explicitly const
- warn if pipe() fails in clvmd (more fixes here needed for error paths...)
- assign (and ignore) read() output in drain buffer
