A few more enhancements, I'd like to see all changes to the balance filters
merged into one major release. Thanks.
Changelog (v3):
* I've noticed that we can enhance the 'usage' filter the same way, so do it
to be consistent with the rest
* the flags for all the new filters have been renamed and look more consistent
as well:
BTRFS_BALANCE_ARGS_LIMIT_RANGE
BTRFS_BALANCE_ARGS_STRIPES_RANGE
BTRFS_BALANCE_ARGS_USAGE_RANGE
* Not: the flags mask is not yet updated, this will follow, also the progs
need to be updated accordingly
Changelog (v2):
* the limit_min logic was wrong and did not work, all other filters are locally
applied to the processed chunk, but for the limit_min we need to count all
filters first and then decide if we want to rebalance or not
Update to balance filters, intended for 4.4:
* new 'stripes=<range>' - process only stripes that cross given number of
devices, specified by a range
* updated 'limit=<range>' - previously a single number was accepted, it's a
range so now we can specify a minimum number of chunks to process
There will be more documentation about the use in the btrfs-progs patches, the
kernel side just applies the ranges. The update to 'limit' is backward
compatible, reuses the previous struct member.
Need the v2 btrfs-progs patchset.
Note to merging: there's a missing patch that actuall adds both filter flags
to the mask, however this patch[1] will supposedly be merged to 4.3-rc6.
Current integration is based on 4.3-rc5 so I can't send a branch containing
that without pulling unrelated patches. I'll send the patch independently so
you can decide how to apply it once your first 4.4 pull request gets merged.
[1] btrfs: check unsupported filters in balance arguments
(8eb934591f8bf584969454a658f629cd06e59f3a)
----------------------------------------------------------------
The following changes since commit 049e6dde7e57f0054fdc49102e7ef4830c698b46:
Linux 4.3-rc4 (2015-10-04 16:57:17 +0100)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git
dev/balance-filters
for you to fetch changes up to c0b33bea07c4e2ae6d4d9ed56b968e7c09b933c4:
btrfs: extend balance filter usage to take minimum and maximum (2015-10-20
18:58:49 +0200)
----------------------------------------------------------------
David Sterba (2):
btrfs: extend balance filter limit to take minimum and maximum
btrfs: extend balance filter usage to take minimum and maximum
Gabríel Arthúr Pétursson (1):
btrfs: add balance filter for stripes
fs/btrfs/ctree.h | 37 +++++++++++++---
fs/btrfs/volumes.c | 102 ++++++++++++++++++++++++++++++++++++++++++++-
fs/btrfs/volumes.h | 3 ++
include/uapi/linux/btrfs.h | 31 ++++++++++++--
4 files changed, 164 insertions(+), 9 deletions(-)
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