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| author | Konstantin Khlebnikov <[email protected]> | 2020-05-27 05:24:17 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2020-05-27 11:21:23 +0000 |
| commit | 8ab1d40a646e753adb6814642432a093d93dbf47 (patch) | |
| tree | f70e9ee9cc1ea5823cba3865f380a597ef5db3ca /tools/perf/scripts/python | |
| parent | block: add a blk_account_io_merge_bio helper (diff) | |
| download | kernel-8ab1d40a646e753adb6814642432a093d93dbf47.tar.gz kernel-8ab1d40a646e753adb6814642432a093d93dbf47.zip | |
block: remove rcu_read_lock() from part_stat_lock()
The RCU lock is required only in disk_map_sector_rcu() to lookup the
partition. After that request holds reference to related hd_struct.
Replace get_cpu() with preempt_disable() - returned cpu index is unused.
[hch: rebased]
Signed-off-by: Konstantin Khlebnikov <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions