Jung-uk Kim e6c006d96a Improve PCB flags handling and make it more robust. Add two new functions ... for manipulating pcb_flags. These inline functions are very similar to atomic_set_char(9) and atomic_clear_char(9) but without unnecessary LOCK prefix for SMP. Add comments about the rationale[1]. Use these functions wherever possible. Although there are some places where it is not strictly necessary (e.g., a PCB is copied to create a new PCB), it is done across the board for sake of consistency. Turn pcb_full_iret into a PCB flag as it is safe now. Move rarely used fields before pcb_flags and reduce size of pcb_flags to one byte. Fix some style(9) nits in pcb.h while I am in the neighborhood. Reviewed by: kib Submitted by: kib[1] MFC after: 2 months		2010-12-22 00:18:42 +00:00
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ia32_exception.S	Clear DF bit in eflags/rflags on the kernel entry. The i386 and amd64	2010-06-23 20:44:07 +00:00
ia32_misc.c	Save and restore segment registers on amd64 when entering and leaving	2009-04-01 13:09:26 +00:00
ia32_reg.c	Improve PCB flags handling and make it more robust. Add two new functions	2010-12-22 00:18:42 +00:00
ia32_signal.c	Improve PCB flags handling and make it more robust. Add two new functions	2010-12-22 00:18:42 +00:00
ia32_sigtramp.S	Save and restore segment registers on amd64 when entering and leaving	2009-04-01 13:09:26 +00:00
ia32_syscall.c	Remove unused KTRACE includes.	2010-08-19 16:41:27 +00:00