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| author | Alexei Naberezhnov <[email protected]> | 2018-03-27 23:54:16 +0000 |
|---|---|---|
| committer | Song Liu <[email protected]> | 2019-01-28 19:44:40 +0000 |
| commit | 483cbbeddd5fe2c80fd4141ff0748fa06c4ff146 (patch) | |
| tree | 3ebb98292523a656d752359fff20b39978d7e31d /lib/xarray.c | |
| parent | Linux 5.0-rc4 (diff) | |
| download | kernel-483cbbeddd5fe2c80fd4141ff0748fa06c4ff146.tar.gz kernel-483cbbeddd5fe2c80fd4141ff0748fa06c4ff146.zip | |
md/raid5: fix 'out of memory' during raid cache recovery
This fixes the case when md array assembly fails because of raid cache recovery
unable to allocate a stripe, despite attempts to replay stripes and increase
cache size. This happens because stripes released by r5c_recovery_replay_stripes
and raid5_set_cache_size don't become available for allocation immediately.
Released stripes first are placed on conf->released_stripes list and require
md thread to merge them on conf->inactive_list before they can be allocated.
Patch allows final allocation attempt during cache recovery to wait for
new stripes to become availabe for allocation.
Cc: [email protected]
Cc: Shaohua Li <[email protected]>
Cc: linux-stable <[email protected]> # 4.10+
Fixes: b4c625c67362 ("md/r5cache: r5cache recovery: part 1")
Signed-off-by: Alexei Naberezhnov <[email protected]>
Signed-off-by: Song Liu <[email protected]>
Diffstat (limited to 'lib/xarray.c')
0 files changed, 0 insertions, 0 deletions