c93ab7fefa
This is a development snapshot of upcoming MySQL 8.0. PR: 215738 Submitted by: Mahdi Mokhtari <mokhi64@gmail.com> Reviewed by: matthew, feld Approved by: matthew (mentor), feld Differential Revision: https://reviews.freebsd.org/D9031
23 lines
985 B
C
23 lines
985 B
C
--- storage/myisam/mi_dynrec.c.orig 2016-03-28 18:06:12 UTC
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+++ storage/myisam/mi_dynrec.c
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@@ -65,18 +65,13 @@ my_bool mi_dynmap_file(MI_INFO *info, my
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DBUG_RETURN(1);
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}
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/*
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- I wonder if it is good to use MAP_NORESERVE. From the Linux man page:
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- MAP_NORESERVE
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- Do not reserve swap space for this mapping. When swap space is
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- reserved, one has the guarantee that it is possible to modify the
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- mapping. When swap space is not reserved one might get SIGSEGV
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- upon a write if no physical memory is available.
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+ MAP_NORESERVE is unimplemented in FreeBSD
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*/
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info->s->file_map= (uchar*)
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my_mmap(0, (size_t) size,
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info->s->mode==O_RDONLY ? PROT_READ :
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PROT_READ | PROT_WRITE,
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- MAP_SHARED | MAP_NORESERVE,
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+ MAP_SHARED,
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info->dfile, 0L);
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if (info->s->file_map == (uchar*) MAP_FAILED)
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{
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