| commit | 29a7b5b1c33edc4e23996cd9451878d90f634e0a | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sun, 15 Oct 2017 21:20:56 +0000 (15 14:20 -0700) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Mon, 16 Oct 2017 18:30:23 +0000 (16 11:30 -0700) | ||
| tree | 40bb797fae0d9650cbed56528d7d002224197534 | treesnapshot (tar.gz zip) |
| parent | ce5d7a1c6d026162bc16d9c3ad1bd8ee8c42ef49 | commitdiff |
kernel - Add atomic_fcmpset_*()
* Add atomic_fcmpset_*(). GCC has gotten good enough that it no longer
forces that &count onto the stack.
These functions work like atomic_cmpset_*() but update the originating
value on failure, allowing us to avoid reloading it from memory.
Suggested-by: mjg__
* Add atomic_fcmpset_*(). GCC has gotten good enough that it no longer
forces that &count onto the stack.
These functions work like atomic_cmpset_*() but update the originating
value on failure, allowing us to avoid reloading it from memory.
Suggested-by: mjg__
| sys/cpu/x86_64/include/atomic.h | diffblobblamehistory |