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| author | Artur Paszkiewicz <artur.paszkiewicz@intel.com> | 2017-03-09 10:00:02 +0100 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2017-03-17 00:55:56 +0100 |
| commit | 6358c239d88c751a9f14152a8d4ad2b69f5be48f (patch) | |
| tree | 624a99ba683e1ee7115b2e0c5ac9845436524a09 /drivers/md/raid5-cache.c | |
| parent | raid5-ppl: load and recover the log (diff) | |
| download | linux-6358c239d88c751a9f14152a8d4ad2b69f5be48f.tar.xz linux-6358c239d88c751a9f14152a8d4ad2b69f5be48f.zip | |
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>
Diffstat (limited to 'drivers/md/raid5-cache.c')
0 files changed, 0 insertions, 0 deletions