Messages in this thread | | | Date | Thu, 23 Apr 2015 11:32:35 +0900 | From | Minchan Kim <> | Subject | Re: [PATCHv2 05/10] zram: reorganize code layout |
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On Thu, Apr 16, 2015 at 08:55:51PM +0900, Sergey Senozhatsky wrote: > This patch looks big, but basically it just moves code blocks. > No functional changes. > > Our current code layout looks like a sandwitch. > > For example, > a) between read/write handlers, we have update_used_max() helper function: > > static int zram_decompress_page > static int zram_bvec_read > static inline void update_used_max > static int zram_bvec_write > static int zram_bvec_rw > > b) RW request handlers __zram_make_request/zram_bio_discard are divided by > sysfs attr reset_store() function and corresponding zram_reset_device() > handler: > > static void zram_bio_discard > static void zram_reset_device > static ssize_t disksize_store > static ssize_t reset_store > static void __zram_make_request > > c) we first a bunch of sysfs read/store functions. then a number of > one-liners, then helper functions, RW functions, sysfs functions, helper > functions again, and so on. > > Reorganize layout to be more logically grouped (a brief description, > `cat zram_drv.c | grep static` gives a bigger picture): > > -- one-liners: zram_test_flag/etc. > > -- helpers: is_partial_io/update_position/etc > > -- sysfs attr show/store functions + ZRAM_ATTR_RO() generated stats > show() functions > exception: reset and disksize store functions are required to be after meta() > functions. because we do device create/destroy actions in these sysfs > handlers. > > -- "mm" functions: meta get/put, meta alloc/free, page free > static inline bool zram_meta_get > static inline void zram_meta_put > static void zram_meta_free > static struct zram_meta *zram_meta_alloc > static void zram_free_page > > -- a block of I/O functions > static int zram_decompress_page > static int zram_bvec_read > static int zram_bvec_write > static void zram_bio_discard > static int zram_bvec_rw > static void __zram_make_request > static void zram_make_request > static void zram_slot_free_notify > static int zram_rw_page > > -- device contol: add/remove/init/reset functions (+zram-control class > will sit here) > static void zram_reset_device_internal > static int zram_reset_device > static ssize_t reset_store > static ssize_t disksize_store > static int zram_add > static void zram_remove > static int __init zram_init > static void __exit zram_exit > > Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org>
Thanks for the clean up!
-- Kind regards, Minchan Kim
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