Btrfs-progs is a tool for the btrfs kernel and we hope latest btrfs-progs be compatible w any set of older/newer kernels.
So far mkfs.btrfs and btrfs-convert sets the default features, for eg, skinny-metadata even if the running kernel does not supports it, and so the mount fails on the running. Here in this set of patches will make sure the progs understands the kernel supported features. So in this patch, checks if sysfs tells whether the feature is supported if not, then it will relay on static kernel version which provided that feature (skinny-metadata here in this example), next if for some reason the running kernel does not provide the kernel version, then it will fall back to the original method to enable the feature with a hope that kernel will support it. Also the last patch adds a warning when we fail to read either sysfs features or the running kernel version. With this I hope all the concerns from the review comments are addressed. Anand Jain (5): btrfs-progs: introduce framework to check kernel supported features btrfs-progs: add framework to check features supported by sysfs btrfs-progs: kernel based default features for mkfs btrfs-progs: kernel based default features for btrfs-convert btrfs-progs: add warning when we fail to read sysfs or kernel version btrfs-convert.c | 18 ++++++- mkfs.c | 22 ++++++++- utils.c | 146 +++++++++++++++++++++++++++++++++++++++++++++++++++----- utils.h | 2 + 4 files changed, 173 insertions(+), 15 deletions(-) -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
