On 2013-03-29, Harald Becker <[email protected]> wrote:
> Hi,
>
> as here are several experts, and not so much traffic at the moment, I
> throw in an off-topic question (which may still be of interest for
> other system managers):
>
> In a shell script I like to check if a mounted filesystem is still in
> use by any other process in the system. If there is no more process
> using the filesystem some cleanup actions has to be done and
> afterwards the filesystem is unmounted.
How are you going to prevent a race condition?
1) you check to see if the filesystem is in use and find that it isn't.
2) another process opens/creates a file in the filesystem.
3) you do your cleanup.
4) you do a umount and it fails.
--
Grant Edwards grant.b.edwards Yow! Why is it that when
at you DIE, you can't take
gmail.com your HOME ENTERTAINMENT
CENTER with you??
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