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| author | NeilBrown <neilb@suse.de> | 2012-10-11 13:37:33 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-10-11 13:37:33 +1100 |
| commit | 1ca69c4bc4b1ef889861db39f325901eadbf9497 (patch) | |
| tree | a4c83843fc630c42853e1a5ecc51dff5ab3ef54f /tools/perf/scripts/python | |
| parent | MD: change the parameter of md thread (diff) | |
| download | linux-1ca69c4bc4b1ef889861db39f325901eadbf9497.tar.gz linux-1ca69c4bc4b1ef889861db39f325901eadbf9497.zip | |
md: avoid taking the mutex on some ioctls.
Some ioctls don't need to take the mutex and doing so can cause
a delay as it is held during super-block update.
So move those ioctls out of the mutex and rely on rcu locking
to ensure we don't access stale data.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions