btrfs: publish supported featured in sysfs

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This patch adds the ability to publish supported features to sysfs under
/sys/fs/btrfs/features.

The files are module-wide and export which features the kernel supports.

The content, for now, is just "0\n".

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <clm@fb.com>

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Jeff Mahoney 2013-11-01 13:06:57 -04:00 • committed by Chris Mason

parent 29dfe2dc0e

commit 079b72bca3

2 changed files with 87 additions and 0 deletions

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44

fs/btrfs/sysfs.c

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43

fs/btrfs/sysfs.h

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