On Mon, Dec 16, 2013 at 7:00 AM, Li Wang <liw...@ubuntukylin.com> wrote:
> This patch extend the 'drop_caches' interface to
> support directory level cache cleaning and has a complete
> backward compatibility. '{1,2,3}' keeps the same semantics
> as before. Besides, "{1,2,3}:DIRECTORY_PATH_NAME" is allowed
> to recursively clean the caches under DIRECTORY_PATH_NAME.
> For example, 'echo 1:/home/foo/jpg > /proc/sys/vm/drop_caches'
> will clean the page caches of the files inside 'home/foo/jpg'.
>This interface is ugly... And we already have a file-level drop cache, that is, fadvise(DONTNEED). Can you extend it if it can't handle a directory fd? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
