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/linux/drivers/md/
H A Draid5-log.hdiff 6358c239d88c751a9f14152a8d4ad2b69f5be48f Thu Mar 09 10:00:02 CET 2017 Artur Paszkiewicz <artur.paszkiewicz@intel.com> raid5-ppl: support disk hot add/remove with PPL

Add a function to modify the log by removing an rdev when a drive fails
or adding when a spare/replacement is activated as a raid member.

Removing a disk just clears the child log rdev pointer. No new stripes
will be accepted for this child log in ppl_write_stripe() and running io
units will be processed without writing PPL to the device.

Adding a disk sets the child log rdev pointer and writes an empty PPL
header.

Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>
H A Draid5-ppl.cdiff 6358c239d88c751a9f14152a8d4ad2b69f5be48f Thu Mar 09 10:00:02 CET 2017 Artur Paszkiewicz <artur.paszkiewicz@intel.com> raid5-ppl: support disk hot add/remove with PPL

Add a function to modify the log by removing an rdev when a drive fails
or adding when a spare/replacement is activated as a raid member.

Removing a disk just clears the child log rdev pointer. No new stripes
will be accepted for this child log in ppl_write_stripe() and running io
units will be processed without writing PPL to the device.

Adding a disk sets the child log rdev pointer and writes an empty PPL
header.

Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>
H A Draid5.cdiff 6358c239d88c751a9f14152a8d4ad2b69f5be48f Thu Mar 09 10:00:02 CET 2017 Artur Paszkiewicz <artur.paszkiewicz@intel.com> raid5-ppl: support disk hot add/remove with PPL

Add a function to modify the log by removing an rdev when a drive fails
or adding when a spare/replacement is activated as a raid member.

Removing a disk just clears the child log rdev pointer. No new stripes
will be accepted for this child log in ppl_write_stripe() and running io
units will be processed without writing PPL to the device.

Adding a disk sets the child log rdev pointer and writes an empty PPL
header.

Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>