Re: [PATCH v2 cmpxchg 12/13] sh: Emulate one-byte cmpxchg
John Paul Adrian Glaubitz <[email protected]>
| Newsgroups | gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel |
|---|---|
| Message-ID | <6f7743601fe7bd50c2855a8fd1ed8f766ef03cac.camel@physik.fu-berlin.de> |
On Wed, 2024-05-01 at 22:06 -0700, Paul E. McKenney wrote: > > Does cmpxchg_emu_u8() have any advantages over the native xchg_u8()? > > That would be 8-bit xchg() rather than 8-byte cmpxchg(), correct? Indeed. I realized this after sending my reply. > Or am I missing something subtle here that makes sh also support one-byte > (8-bit) cmpxchg()? Is there an explanation available that explains the rationale behind the series, so I can learn more about it? Also, I am opposed to removing Alpha entirely as it's still being actively maintained in Debian and Gentoo and works well. Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer `. `' Physicist `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913