diff options
| author | Nicholas Piggin <[email protected]> | 2018-05-01 00:55:54 +1000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2018-07-23 20:11:55 +1000 |
| commit | ec97eaad1383ab2500fcf9a07ade6044fbcc67f5 (patch) | |
| tree | 4c05fb0e4b4f6db8a2a56921f28dc5cc0931ce6e /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | a9bf5c8a271b9a954709b7ada1bd258f5cadf7ff (diff) | |
tty: hvc: hvc_poll() break hv read loop
Avoid looping with the spinlock held while there is read data
being returned from the hv driver. Instead note if the entire
size returned by tty_buffer_request_room was read, and request
another read poll.
This limits the critical section lengths, and provides more
even service to other consoles in case there is a pathological
condition.
Signed-off-by: Nicholas Piggin <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions