On Fri, May 15, 2015 at 02:23:48PM -0700, Zach Brown wrote: > Add a O_NOCMTIME flag which prevents inode time updates on writes and > can greatly reduce the IO overhead of writes to allocated and > initialized regions of files.
> --- a/include/linux/fs.h > +++ b/include/linux/fs.h You may also want to resolve this: /* * Don't update ctime and mtime. * * Currently a special hack for the XFS open_by_handle ioctl, but we'll * hopefully graduate it to a proper O_CMTIME flag supported by open(2) soon. */ #define FMODE_NOCMTIME ((__force fmode_t)0x800) -- 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/
