bk commit into 5.0 tree (jimw:1.1944) BUG#8271

[Jim Winstead]

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5.0 repository of jimw. When jimw does a push these changes will
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ChangeSet
  1.1944 05/05/13 07:18:41 jimw@stripped +1 -0
  Avoid doing a seek when first setting up the IO cache for a file,
  which allows a FIFO to be used for the non-binary logs. (Bug #8271)

  mysys/mf_iocache.c
    1.51 05/05/13 07:18:04 jimw@stripped +1 -1
    Don't set seek_not_done if the position of the file is already
    where we expected it to be.

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	jimw
# Host:	rama.(none)
# Root:	/home/jimw/my/mysql-5.0-8271

--- 1.50/mysys/mf_iocache.c	2005-03-08 08:12:08 -08:00
+++ 1.51/mysys/mf_iocache.c	2005-05-13 07:18:04 -07:00
@@ -171,7 +171,7 @@
   info->arg = 0;
   info->alloced_buffer = 0;
   info->buffer=0;
-  info->seek_not_done= test(file >= 0);
+  info->seek_not_done= test(file >= 0 && seek_offset != my_tell(file,
MYF(0)));
   info->disk_writes= 0;
 #ifdef THREAD
   info->share=0;