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| author |   Alexei Naberezhnov <anaberezhnov@fb.com> | 2018-03-27 16:54:16 -0700 |
|---|---|---|
| committer |   Song Liu <songliubraving@fb.com> | 2019-01-28 11:44:40 -0800 |
| commit | 483cbbeddd5fe2c80fd4141ff0748fa06c4ff146 (patch) | |
| tree | 3ebb98292523a656d752359fff20b39978d7e31d /firmware | |
| parent | Linux 5.0-rc4 (diff) | |
| download | linux-dev-483cbbeddd5fe2c80fd4141ff0748fa06c4ff146.tar.xz linux-dev-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: linux-raid@vger.kernel.org
Cc: Shaohua Li <shli@kernel.org>
Cc: linux-stable <stable@vger.kernel.org> # 4.10+
Fixes: b4c625c67362 ("md/r5cache: r5cache recovery: part 1")
Signed-off-by: Alexei Naberezhnov <anaberezhnov@fb.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Diffstat (limited to 'firmware')
0 files changed, 0 insertions, 0 deletions