posix_fadvise(2): mention sync_file_range(2)

posix_fadvise(2): mention sync_file_range(2)

[Manfred Schwarb]

Hi,

for POSIX_FADV_DONTNEED, syncing with fsync(2) or fdatasync(2) is recommended in
the man page of posix_fadvise(2).
However, for this task sync_file_range(2) is probably best suited, as it 
is fast and has the same granularity as posix_fadvise(2).
akpm also used sync_file_range(2) for his user space helpers:
http://userweb.kernel.org/~akpm/pagecache-management/pagecache-management/pagecache-management.c

So I suggest to add sync_file_range(2) to the list of mentioned sync functions.

Cheers,
Manfred
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Re: posix_fadvise(2): mention sync_file_range(2)

[Michael Kerrisk]

Hello Manfred,

On Wed, Mar 3, 2010 at 4:16 PM, Manfred Schwarb <manfred99-OI3hZJvNYWs@public.gmane.org> wrote:
> Hi,
>
> for POSIX_FADV_DONTNEED, syncing with fsync(2) or fdatasync(2) is recommended in
> the man page of posix_fadvise(2).
> However, for this task sync_file_range(2) is probably best suited, as it
> is fast and has the same granularity as posix_fadvise(2).
> akpm also used sync_file_range(2) for his user space helpers:
> http://userweb.kernel.org/~akpm/pagecache-management/pagecache-management/pagecache-management.c
>
> So I suggest to add sync_file_range(2) to the list of mentioned sync functions.

Thanks. Done, for man-pages-3.25.

Cheers,

Michael


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface" http://blog.man7.org/
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