Messages in this thread | | | Subject | PTRACE_{READ,WRITE}{TEXT,DATA} | From | Benjamin Herrenschmidt <> | Date | Tue, 29 Apr 2008 13:54:08 +1000 |
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Hi Roland, David !
I noticed kernel/ptrace.c has ptrace_readdata/writedata functions that are only used by sparc and sparc64 which implements the ptrace requests PTRACE_READ_DATA, PTRACE_WRITE_DATA (and _TEXT variants).
Any reason not to make everybody benefit from these and moving the sparc implementation to the generic ptrace_request (&compat) ?
It's more efficient than read/writing one word at a time... I thought about it in the light of some work Rik is doing to make access_process_vm useable on video ram mappings done by the X server...
If you are ok, I'll do a patch.
Cheers, Ben
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