Re: [robust-futex-1] futex: robust futex support

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On Jan 14, 2006, at 4:02 PM, Ulrich Drepper wrote:

On 1/13/06, David Singleton <[email protected]> wrote:
=============================================
--- linux-2.6.15.orig/include/asm-generic/errno.h
+++ linux-2.6.15/include/asm-generic/errno.h
@@ -105,5 +105,6 @@
 /* for robust mutexes */
 #define        EOWNERDEAD      130     /* Owner died */
 #define        ENOTRECOVERABLE 131     /* State not recoverable */
+#define ENOTSHARED     132     /* no pshared attribute */

Do not introduce a new error code if at all possible.  Adding
userlang-visible error codes means the ABI changes due to the stupid
_sys_errlist variable.  Just reuse an error code which cannot be
returned in the futex code so far and which has some kind of
resemblence with what the error means.

can you suggest some error codes you like to use?  I'll use
whatever you suggest.

thanks

David

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