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| author | NeilBrown <neilb@suse.com> | 2018-02-02 23:19:30 +0100 |
|---|---|---|
| committer | Shaohua Li <sh.li@alibaba-inc.com> | 2018-02-18 19:22:27 +0100 |
| commit | f2785b527cda46314805123ddcbc871655b7c4c4 (patch) | |
| tree | 797db5c31d88db7c308e660356501d1367c4cab8 /drivers/md/raid5-log.h | |
| parent | md: fix md_write_start() deadlock w/o metadata devices (diff) | |
| download | linux-f2785b527cda46314805123ddcbc871655b7c4c4.tar.xz linux-f2785b527cda46314805123ddcbc871655b7c4c4.zip | |
md: document lifetime of internal rdev pointer.
The rdev pointer kept in the local 'config' for each for
raid1, raid10, raid4/5/6 has non-obvious lifetime rules.
Sometimes RCU is needed, sometimes a lock, something nothing.
Add documentation to explain this.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <sh.li@alibaba-inc.com>
Diffstat (limited to 'drivers/md/raid5-log.h')
0 files changed, 0 insertions, 0 deletions