Hi, This patchset is based on the following patch by Pratik Shinde, https://lore.kernel.org/linux-erofs/20190830095615.10995-1-pratikshinde320@xxxxxxxxx/ All patches addressing Christoph's comments on v6, which are trivial, most deleted code are from erofs specific fault injection, which was followed f2fs and previously discussed in earlier topic [1], but let's follow what Christoph's said now. Comments and suggestions are welcome... [1] https://lore.kernel.org/r/1eed1e6b-f95e-aa8e-c3e7-e9870401ee23@xxxxxxxxxx/ changes since v1: - leave some comments near the numbers to indicate where they are stored; - avoid a u8 cast; - use erofs_{err,info,dbg} and print sb->s_id as a prefix before the actual message; - add a on-disk title in erofs_fs.h - use feature_{compat,incompat} rather than features and requirements; - suggestions on erofs_grab_bio: https://lore.kernel.org/r/20190902122016.GL15931@xxxxxxxxxxxxx/ - use compact/extended instead of erofs_inode_v1/v2 and i_format instead of i_advise; - avoid chained if/else if/else if statements in erofs_read_inode; - avoid erofs_vmap/vunmap wrappers; - use read_cache_page_gfp for erofs_get_meta_page; Gao Xiang (25): erofs: remove all the byte offset comments erofs: on-disk format should have explicitly assigned numbers erofs: some macros are much more readable as a function erofs: kill __packed for on-disk structures erofs: update erofs_inode_is_data_compressed helper erofs: use feature_incompat rather than requirements erofs: better naming for erofs inode related stuffs erofs: kill erofs_{init,exit}_inode_cache erofs: use erofs_inode naming erofs: update erofs_fs.h comments erofs: update comments in inode.c erofs: better erofs symlink stuffs erofs: use dsb instead of layout for ondisk super_block erofs: kill verbose debug info in erofs_fill_super erofs: localize erofs_grab_bio() erofs: kill prio and nofail of erofs_get_meta_page() erofs: kill __submit_bio() erofs: add "erofs_" prefix for common and short functions erofs: kill all erofs specific fault injection erofs: kill use_vmap module parameter erofs: save one level of indentation erofs: rename errln/infoln/debugln to erofs_{err,info,dbg} erofs: use read_mapping_page instead of sb_bread erofs: always use iget5_locked erofs: use read_cache_page_gfp for erofs_get_meta_page Documentation/filesystems/erofs.txt | 9 - fs/erofs/Kconfig | 7 - fs/erofs/data.c | 118 +++-------- fs/erofs/decompressor.c | 76 +++---- fs/erofs/dir.c | 17 +- fs/erofs/erofs_fs.h | 197 +++++++++--------- fs/erofs/inode.c | 297 ++++++++++++++-------------- fs/erofs/internal.h | 192 ++++-------------- fs/erofs/namei.c | 21 +- fs/erofs/super.c | 282 +++++++++++--------------- fs/erofs/xattr.c | 41 ++-- fs/erofs/xattr.h | 4 +- fs/erofs/zdata.c | 63 +++--- fs/erofs/zdata.h | 2 +- fs/erofs/zmap.c | 73 +++---- include/trace/events/erofs.h | 14 +- 16 files changed, 578 insertions(+), 835 deletions(-) -- 2.17.1