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authorVineet Gupta <vgupta@synopsys.com>2013-01-18 15:12:19 +0530
committerVineet Gupta <vgupta@synopsys.com>2013-02-15 23:03:30 +0530
commitc3581039b6c51a778a70accec53a9bb7ad9a4d32 (patch)
tree6816e82f1a59fe3d4fbf8c291d3f52598531c50c /kernel/utsname.c
parentd8005e6b95268cbb50db3773d5f180c32a9434fe (diff)
ARC: Signal handling
Includes following fixes courtesy review by Al-Viro * Tracer poke to Callee-regs were lost Before going off into do_signal( ) we save the user-mode callee regs (as they are not saved by default as part of pt_regs). This is to make sure that that a Tracer (if tracing related signal) is able to do likes of PEEKUSR(callee-reg). However in return path we were simply discarding the user-mode callee regs, which would break a POKEUSR(callee-reg) from a tracer. * Issue related to multiple syscall restarts are addressed in next patch Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Acked-by: Jonas Bonn <jonas@southpole.se>
Diffstat (limited to 'kernel/utsname.c')
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