This patch set will provide a framework and help to create attributes
from the structure btrfs_fs_devices which are available even before
fs_info is created. So by moving the parent kobject super_kobj from
fs_info to btrfs_fs_devices, it will help to create attributes
from the btrfs_fs_devices as well.
Just to note, this does not change any of the existing btrfs sysfs
external kobject names and its attributes and not even the life
cycle of them. Changes are internal only. And to ensure the same,
this path has been tested with various device operations and,
checking and comparing the sysfs kobjects and attributes with
sysfs kobject and attributes with out this patch, and they remain
same. These test cases are added to the progs as test-btrfs-devmgt.sh,
its patch is below as well.
Anand Jain (12):
Btrfs: sysfs: fix, btrfs_release_super_kobj() should to clean up the
kobject data
Btrfs: sysfs: fix, fs_info kobject_unregister has init_completion()
twice
Btrfs: sysfs: fix, undo sysfs device links
Btrfs: sysfs: fix, kobject pointer clean up needed after kobject
release
Btrfc: sysfs: fix, check if device_dir_kobj is init before destroy
Btrfs: sysfs: reorder the kobject creations
Btrfs: sysfs: rename __btrfs_sysfs_remove_one to
btrfs_sysfs_remove_fsid
Btrfs: sysfs: introduce function btrfs_sysfs_add_fsid() to create
sysfs fsid
Btrfs: sysfs: let default_attrs be separate from the kset
Btrfs: sysfs: separate device kobject and its attribute creation
Btrfs: sysfs: move super_kobj and device_dir_kobj from fs_info to
btrfs_fs_devices
Btrfs: sysfs: add pointer to access fs_info from fs_devices
fs/btrfs/ctree.h | 3 --
fs/btrfs/disk-io.c | 1 -
fs/btrfs/sysfs.c | 133 +++++++++++++++++++++++++++++++++++++++--------------
fs/btrfs/volumes.c | 3 +-
fs/btrfs/volumes.h | 6 +++
5 files changed, 107 insertions(+), 39 deletions(-)
Anand Jain (1):
Btrfs-progs: add regression tests for sysfs contents during btrfs
device management
tests/test-btrfs-devmgt.sh | 863 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 863 insertions(+)
create mode 100755 tests/test-btrfs-devmgt.sh
--
1.9.1
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