OGAWA Hirofumi 898310032b fat: improve the readahead for FAT entries ... Current readahead for FAT entries is very simple but is having some flaws, so it is not working well for some environments. This patch improves the readahead more or less. The key points of modification are, - make the readahead size tunable by using bdi->ra_pages - care the bdi->io_pages to avoid the small size I/O request - update readahead window before fully exhausting With this patch, on slow USB connected 2TB hdd: [before] 383.18sec [after] 51.03sec Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: hyeongseok.kim <hyeongseok.kim@lge.com> Reviewed-by: hyeongseok.kim <hyeongseok.kim@lge.com> Link: http://lkml.kernel.org/r/87d08e1dlh.fsf@mail.parknet.co.jp Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-06-04 19:06:25 -07:00
..
cache.c
dir.c
fat.h
fatent.c	fat: improve the readahead for FAT entries	2020-06-04 19:06:25 -07:00
file.c
inode.c	fat: don't allow to mount if the FAT length == 0	2020-06-04 19:06:25 -07:00
Kconfig
Makefile
misc.c
namei_msdos.c
namei_vfat.c
nfs.c