2012-10-13 (토), 20:52 +0000, Arnd Bergmann: > On Friday 05 October 2012, 김재극 wrote: > > +const char *media_ext_lists[] = { > > + "jpg", > > + "gif", > > + "png", > > + "avi", > > + "divx", > > + "mp4", > > + "mp3", > > ... > > > + * Set multimedia files as cold files for hot/cold data separation > > + */ > > +static inline void set_cold_file(struct inode *inode, const unsigned char > > *name) > > +{ > > + const char **extlist = media_ext_lists; > > + > > + while (*extlist) { > > + if (!is_multimedia_file(name, *extlist)) { > > + F2FS_I(inode)->is_cold = 1; > > + break; > > + } > > + extlist++; > > + } > > +} > > This is a very clever way of categorizing files by their name, but I wonder > if hardcoding > the list of file name extensions at in the kernel source is the best > strategy. Generally > I would consider this to be a policy that should be configurable by the user. > > Unfortunately I can't think of a good interface to configure this, but maybe > someone > else has a useful idea. Maybe the list can be stored in the superblock and > get written > at mkfs time from the same defaults, but with the option of overriding it > using > a debugfs tool. >
Good point! I'll think about a user-made list. Thanks, > Arnd > -- > 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/ -- Jaegeuk Kim Samsung -- 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/