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	fat: new inline functions to determine the FAT variant (32, 16 or 12)	2019-01-04 13:13:47 -08:00
dir.c	fat_dir_ioctl(): hadn't needed that access_ok() for more than a decade...	2020-05-09 15:57:04 -04:00
fat.h	fat: new inline functions to determine the FAT variant (32, 16 or 12)	2019-01-04 13:13:47 -08:00
fatent.c	fat: improve the readahead for FAT entries	2020-06-04 19:06:25 -07:00
file.c	block: remove the error_sector argument to blkdev_issue_flush	2020-05-22 08:45:46 -06:00
inode.c	fat: don't allow to mount if the FAT length == 0	2020-06-04 19:06:25 -07:00
Kconfig	docs: fix broken references to text files	2020-04-20 15:35:59 -06:00
Makefile
misc.c	fs: fat: Eliminate timespec64_trunc() usage	2019-12-08 19:10:51 -05:00
namei_msdos.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
namei_vfat.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
nfs.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00