[based on current misc-next]
-----
changelog
v1 -> v2
- Explicitly set start of enum btrfs_feature_set as 0 in 1st patch
- Create new sysfs group which shows static feature (i.e. features
which only depends on kernel version). See 2nd path.
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This adds new sysfs entry
/sys/fs/btrfs/static_features/rmdir_subvol
to indicate that the kernel can delete a subvolume by rmdir(2),
which is allowed by: https://www.spinics.net/lists/linux-btrfs/msg76938.html
The aim of adding a entry is to enable a user program (e.g. xfstest)
to detect a feature.
The first patch is a cleanup and the second one is a main part.
Tomohiro Misono (2):
btrfs: sysfs: Use enum/define value intead of magic number
btrfs: sysfs: Add entry which shows rmdir(2) can work for subvolume
fs/btrfs/sysfs.c | 40 +++++++++++++++++++++++++++++++++++-----
fs/btrfs/sysfs.h | 4 ++--
2 files changed, 37 insertions(+), 7 deletions(-)
--
2.14.3
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