Eric Lee / smarc-ti-linux-kernel

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Commit 33b04b9308959af7febc1c111c766fa3fd8b1934

Authored by Arjan van de Ven
Committed by Linus Torvalds
1 parent 85da1fb545
Exists in master and in 20 other branches dlt-processor-sdk-linux-03.00.00.04, newt-ti-linux-3.12.y, processor-sdk-linux-01.00.00, processor-sdk-linux-02.00.01, smarc-ti-linux-3.12.10, smarc-ti-linux-3.12.y, smarc-ti-linux-3.14.y, smarc-ti-linux-3.15.y, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04, ti-linux-3.12.y, ti-linux-3.14.y, ti-linux-3.15.y, ti-lsk-linux-4.1.y

async: make async_synchronize_full() more serializing 

turns out that there are real problems with allowing async
tasks that are scheduled from async tasks to run after
the async_synchronize_full() returns.

This patch makes the _full more strict and a complete
synchronization. Later I might need to add back a lighter
form of synchronization for other uses.. but not right now.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 3 additions and 1 deletions Side-by-side Diff

... ... @@ -206,7 +206,9 @@
206 206  
207 207 void async_synchronize_full(void)
208 208 {
209   - async_synchronize_cookie(next_cookie);
  209 + do {
  210 + async_synchronize_cookie(next_cookie);
  211 + } while (!list_empty(&async_running) || !list_empty(&async_pending));
210 212 }
211 213 EXPORT_SYMBOL_GPL(async_synchronize_full);
212 214