[PATCH 0/10] xfs: xfs_ioc_bulkstat refactoring and consolidation

[Jeff Liu]

Hi Folks,

The parallel quota check is still in progress because I observed performance number
varies greatly, I suspect that is related to the hardward problem of my laptop.

Thus, I have to delay that for a period of time until I can get a reasonable results.
Meantime, there are some patches could be posted for the review which are focus on
code refactoring and consolidations in xfs_ioc_bulkstat() related functions, i.e,
xfs_bulkstat(), xfs_inumbers(), etc...

It mainly implemented per AG bulkstat that we have discussed in parallel quota check
thread, and fix several problems regarding to the error handling for inode btree
operations in xfs_bulkstat() and xfs_inumbers() as per Christoph's suggestion.

Moreover, I introduced another per AG inumber strategy, which can be used to scan
multiple AGs with a new ioctl(2) in the future.


Thanks,
-Jeff