[PATCH v2 00/12] xfs: kill hard-coded number 128 for transaction space log reservation

[Jeff Liu <jeff.liu@xxxxxxxxxx>]

Hello,

Here is the v2 patch set of killing hard-coded number 128 which is used to 
indicate
the extra log space reservation for almost all of those transactions.

In this round, I also tried to convert some transactions to pre-calculate out 
the
space log reservation from runtime to mount time so that we can make the code 
related
to xfs_trans_reserve() looks a bit neat and reduce a bit performance 
overhead(basically
can be ignored. :)) IMHO, which were includes: super block quota flags changes,
quota off/end of quota off, adjust quota limits, quota allocations, log dummy1,
log super block counters, log super block units/fields, as well as set 
attributes.


Changes of v2 to v1:
- use xfs_calc_buf_res() to calulate out the space log reservation per item.

Old patches:
v1:
http://www.spinics.net/lists/xfs/msg15499.html
 
Thanks,
-Jeff