[Bug libc/14565] Unnecessary failure case in sysdeps/posix/writev.c, etc.

[joseph at codesourcery dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14565

--- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2012-09-09 22:19:06 UTC ---
FWIW:

/* Pessimistically assume that 2.6.18 introduced real handling of
   large numbers of requests to readv and writev and that we don't
   need a fallback.  It likely worked for much longer.  */
#if __LINUX_KERNEL_VERSION >= 0x020612
# define __ASSUME_COMPLETE_READV_WRITEV 1
#endif

It would be nice if someone figured out just when this went into the 
kernel - if it was actually 2.6.16 or before, then this replacement code 
isn't actually needed for Linux any more.

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