On 2019/4/16 14:43, Park Ju Hyung wrote: > Following extensions are removed: > - divx: deprecated video format and it's usually wrapped with avi > - asf: deprecated streaming format > - asx: redirecting file to asf(small) > - wmx: redirecting file to wma/wmv(small) > - rm: deprecated media container > - video: unused > - wv: unpopular audio format from 1998 > > The extensions list is limited to 64 and those don't deserve to be > on this space-precious list. > > Common prefixes are introduced and are checked with > https://en.wikipedia.org/wiki/List_of_filename_extensions > to avoid treating possible hot files as cold: > - mp: covers mp3, mp4, mpeg, mpg > - wm: covers wma, wmb, wmv > - og: covers oga, ogg, ogm, ogv > - jp: covers jpg, jpeg, jp2 > > Following extensions are added: > - webm: extremely popular free media container format from Google > VP8/VP9/AV1 and Vorbis/Opus is often wrapped with this container > - wav: uncompressed audio format, commonly used with voice recorders > - svg: vector image format commonly used in web > - webp: free lossy image format commonly used in web > - jar: Java archive file > - deb: Debian software package > - iso: disk image file > - gz: gzip compressed file, unable to randomly update > - xz: xz compressed file, unable to randomly update > - zst: zstd compressed file, unable to randomly update > - pdf: PDF document > - pyc: Python bytecode automatically generated when > executing python to run .py files > - ttc, ttf: font files > - cnt: image alias files commonly used in Android apps > - exo: EXO player's cache files, commonly used in Android's YouTube app > - odex, vdex: Android RunTime files found in /data/app/*/oat > > Total entries on the list changed from 34 to 36. > > Signed-off-by: Park Ju Hyung <[email protected]> > --- > mkfs/f2fs_format.c | 50 ++++++++++++++++++++++++++-------------------- > 1 file changed, 28 insertions(+), 22 deletions(-) > > diff --git a/mkfs/f2fs_format.c b/mkfs/f2fs_format.c > index 0ae0df3..4560611 100644 > --- a/mkfs/f2fs_format.c > +++ b/mkfs/f2fs_format.c > @@ -38,48 +38,54 @@ struct f2fs_checkpoint *cp; > static unsigned int quotatype_bits = 0; > > const char *media_ext_lists[] = { > + /* common prefix */ > + "mp", // Covers mp3, mp4, mpeg, mpg > + "wm", // Covers wma, wmb, wmv > + "og", // Covers oga, ogg, ogm, ogv > + "jp", // Covers jpg, jpeg, jp2
Actually, kernel will compare each character of extension in list with file's extension, rather than prefix, could you confirm that? :) Thanks, > + > /* video */ > "avi", > - "divx", > "m4v", > "m4p", > - "mp4", > - "wmv", > - "mpeg", > "mkv", > "mov", > - "asx", > - "asf", > - "wmx", > - "svi", > - "wvx", > - "wm", > - "mpg", > - "mpe", > - "rm", > - "video", > + "webm", > > /* audio */ > + "wav", > "m4a", > - "mp3", > "3gp", > - "wma", > - "wv", > - "ogg", > "opus", > "flac", > > /* image */ > - "jpeg", > - "jpg", > "gif", > "png", > - > - /* other */ > + "svg", > + "webp", > + > + /* archives */ > + "jar", > + "deb", > + "iso", > + "gz", > + "xz", > + "zst", > + > + /* others */ > + "pdf", > + "pyc", // Python bytecode > + "ttc", > + "ttf", > "exe", > > /* android */ > "apk", > + "cnt", // Image alias > + "exo", // YouTube > + "odex", // Android RunTime > + "vdex", // Android RunTime > "so", > > NULL > _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
