diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2012-07-04 10:38:30 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-15 08:10:11 -0700 |
| commit | e0604ba541f04a542ee9a7f6a468a60688ad8c72 (patch) | |
| tree | 904d8a8ba34b6489285893855615687afb3efde4 /drivers/usb/core/hub.c | |
| parent | 0110bbfbc8ed1b5240a51e8c767c44a856424139 (diff) | |
random: use lockless techniques in the interrupt path
commit 902c098a3663de3fa18639efbb71b6080f0bcd3c upstream.
The real-time Linux folks don't like add_interrupt_randomness() taking
a spinlock since it is called in the low-level interrupt routine.
This also allows us to reduce the overhead in the fast path, for the
random driver, which is the interrupt collection path.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/hub.c')
0 files changed, 0 insertions, 0 deletions