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| author | Daniel Wagner <[email protected]> | 2021-09-02 09:20:02 +0000 |
|---|---|---|
| committer | Christoph Hellwig <[email protected]> | 2021-09-13 15:04:04 +0000 |
| commit | 9edceaf43050f5ba1dd7d0011bcf68a736a17743 (patch) | |
| tree | a6e87f932394ccbc624e92414f4306d543f76af9 /lib/netdev-notifier-error-inject.c | |
| parent | nvmet: fix a width vs precision bug in nvmet_subsys_attr_serial_show() (diff) | |
| download | kernel-9edceaf43050f5ba1dd7d0011bcf68a736a17743.tar.gz kernel-9edceaf43050f5ba1dd7d0011bcf68a736a17743.zip | |
nvme: avoid race in shutdown namespace removal
When we remove the siblings entry, we update ns->head->list, hence we
can't separate the removal and test for being empty. They have to be
in the same critical section to avoid a race.
To avoid breaking the refcounting imbalance again, add a list empty
check to nvme_find_ns_head.
Fixes: 5396fdac56d8 ("nvme: fix refcounting imbalance when all paths are down")
Signed-off-by: Daniel Wagner <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
Tested-by: Hannes Reinecke <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Diffstat (limited to 'lib/netdev-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions