Helge Deller 8278cc1626 parisc: Reduce code size by optimizing get_current() function calls ... The get_current() code uses the mfctl() macro to get the pointer to the current task struct from %cr30. The problem with the mfctl() macro is, that it is marked volatile which is basically correct, because mfctl() is used to get e.g. the current internal timer or interrupt flags as well. But specifically the task struct pointer (%cr30) doesn't change over time when the kernel executes code for a task. So, by dropping the volatile when retrieving %cr30 the compiler is now able to get this value only once and optimize the generated code a lot. A bloat-o-meter comparism shows that this patch saves ~5kB kernel code on a 32-bit kernel and ~6kB kernel code on a 64-bit kernel. Signed-off-by: Helge Deller <deller@gmx.de>		2022-03-11 19:49:31 +01:00
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asm	parisc: Reduce code size by optimizing get_current() function calls	2022-03-11 19:49:31 +01:00
uapi/asm	parisc: Add vDSO support	2022-03-11 19:49:30 +01:00