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Do not claim that msync(2) is obsoleted [1].
Document EIO from msync(2). Inspired by PR: docs/165929 [1] Reviewed by: jilles MFC after: 2 weeks
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svn path=/head/; revision=233102
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@ -28,7 +28,7 @@
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.\" @(#)mmap.2 8.4 (Berkeley) 5/11/95
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.\" $FreeBSD$
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.\"
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.Dd August 28, 2010
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.Dd March 18, 2012
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.Dt MMAP 2
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.Os
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.Sh NAME
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@ -205,7 +205,7 @@ command and
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system call generally do not flush dirty NOSYNC VM data.
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The
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.Xr msync 2
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system call is obsolete since
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system call is usually not needed since
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.Bx
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implements a coherent file system buffer cache.
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However, it may be
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@ -28,7 +28,7 @@
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.\" @(#)msync.2 8.2 (Berkeley) 6/21/94
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.\" $FreeBSD$
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.\"
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.Dd June 21, 1994
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.Dd March 18, 2012
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.Dt MSYNC 2
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.Os
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.Sh NAME
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@ -98,6 +98,9 @@ The
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argument
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was both MS_ASYNC and MS_INVALIDATE.
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Only one of these flags is allowed.
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.It Bq Er EIO
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An error occurred while writing at least one of the pages in
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the specified region.
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.El
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.Sh SEE ALSO
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.Xr madvise 2 ,
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@ -113,7 +116,7 @@ system call first appeared in
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.Sh BUGS
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The
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.Fn msync
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system call is obsolete since
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system call is usually not needed since
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.Bx
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implements a coherent file system buffer cache.
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However, it may be used to associate dirty VM pages with file system
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