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| author | roam <roam@FreeBSD.org> | 2004-09-03 06:24:25 +0000 |
|---|---|---|
| committer | roam <roam@FreeBSD.org> | 2004-09-03 06:24:25 +0000 |
| commit | 14bb07bf2a92d64c0355aa09591d08cc8dc568c6 (patch) | |
| tree | 4939df5989062278bec8361e69edd53dde7ee637 /lib/libc/sys/msync.2 | |
| parent | 083ce78d8537074534e5116377d2c2ab166d85c5 (diff) | |
| download | FreeBSD-src-14bb07bf2a92d64c0355aa09591d08cc8dc568c6.zip FreeBSD-src-14bb07bf2a92d64c0355aa09591d08cc8dc568c6.tar.gz | |
Add a BUGS section and copy the wording from mmap(2)'s MAP_NOSYNC,
documenting the obsoleteness of the msync(2) syscall and its single
remaining purpose.
PR: 70916
Submitted by: Radim Kolar <hsn@netmag.cz>
MFC after: 3 days
Diffstat (limited to 'lib/libc/sys/msync.2')
| -rw-r--r-- | lib/libc/sys/msync.2 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/libc/sys/msync.2 b/lib/libc/sys/msync.2 index 28aa1a7..e7d50c3 100644 --- a/lib/libc/sys/msync.2 +++ b/lib/libc/sys/msync.2 @@ -114,3 +114,12 @@ The .Fn msync system call first appeared in .Bx 4.4 . +.Sh BUGS +The +.Fn msync +system call is obsolete since +.Bx +implements a coherent file system buffer cache. +However, it may be used to associate dirty VM pages with file system +buffers and thus cause them to be flushed to physical media sooner +rather than later. |
