This series is motivated by 2 things; moving libxfs transaction
code slightly closer to how it looks in the kernel, and also
adding (or fixing) infrastructure to better detect leaks in
libxfs.
The first 3 patches just tidy up the use of some
of the private buffer fields in xfs_buf, to match the kernel.
The next 5 revolve around using pseudo memory zones in libxfs
and detecting whether all allocated items have been freed when
libxfs is torn down. By default there should be no functional
change here, but if the LIBXFS_LEAK_CHECK env var is set, it
will squawk about leaks and exit with exit(1):
[sandeen@sandeen xfsprogs]$ mkfs/mkfs.xfs -dfile,name=fsfile2,size=1g
meta-data=fsfile2 isize=512 agcount=4, agsize=65536 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=1, sparse=0, rmapbt=0, reflink=0
data = bsize=4096 blocks=262144, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
zone xfs_buf_log_item freed with 3 items allocated
[sandeen@sandeen xfsprogs]$ echo $?
1
I've got more going on to fix up these leaks, but this lays the groundwork
in a hopefully easy series to review.
Thanks,
-Eric
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