Chao Yu af4b6b8edf f2fs: introduce check_swap_activate_fast() ...

check_swap_activate() will lookup block mapping via bmap() one by one, so
its performance is very bad, this patch introduces check_swap_activate_fast()
to use f2fs_fiemap() to boost this process, since f2fs_fiemap() will lookup
block mappings in batch, therefore, it can improve swapon()'s performance
significantly.

Note that this enhancement only works when page size is equal to f2fs' block
size.

Testcase: (backend device: zram)
- touch file
- pin & fallocate file to 8GB
- mkswap file
- swapon file

Before:
real	0m2.999s
user	0m0.000s
sys	0m2.980s

After:
real	0m0.081s
user	0m0.000s
sys	0m0.064s

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

2020-10-13 23:23:34 -07:00

..

acl.c

f2fs: clean up kvfree

2020-09-14 11:15:37 -07:00

acl.h

f2fs: Use the correct style for SPDX License Identifier

2020-05-08 06:55:55 -07:00

checkpoint.c

f2fs: handle errors of f2fs_get_meta_page_nofail

2020-10-13 23:23:29 -07:00

compress.c

f2fs: fix slab leak of rpages pointer

2020-09-29 09:16:36 -07:00

data.c

f2fs: introduce check_swap_activate_fast()

2020-10-13 23:23:34 -07:00

debug.c

f2fs: clean up kvfree

2020-09-14 11:15:37 -07:00

dir.c

f2fs: fix uninit-value in f2fs_lookup

2020-09-29 02:12:41 -07:00

extent_cache.c

f2fs: support 64-bits key in f2fs rb-tree node entry

2020-09-10 14:03:30 -07:00

f2fs.h

f2fs: handle errors of f2fs_get_meta_page_nofail

2020-10-13 23:23:29 -07:00

file.c

f2fs: compress: fix to disallow enabling compress on non-empty file

2020-09-29 09:16:36 -07:00

gc.c

f2fs: clean up kvfree

2020-09-14 11:15:37 -07:00

gc.h

f2fs: support age threshold based garbage collection

2020-09-11 11:11:15 -07:00

hash.c

Merge tag 'f2fs-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

2020-06-09 11:28:59 -07:00

inline.c

f2fs: clean up kvfree

2020-09-14 11:15:37 -07:00

inode.c

f2fs: fix to set SBI_NEED_FSCK flag for inconsistent inode

2020-10-09 10:29:31 -07:00

Kconfig

f2fs: compress: support lzo-rle compress algorithm

2020-05-11 20:36:46 -07:00

Makefile

f2fs: support data compression

2020-01-17 16:48:07 -08:00

namei.c

f2fs: clean up kvfree

2020-09-14 11:15:37 -07:00

node.c

f2fs: handle errors of f2fs_get_meta_page_nofail

2020-10-13 23:23:29 -07:00

node.h

f2fs: shrink spinlock coverage

2020-05-11 20:36:46 -07:00

recovery.c

f2fs: fix error path in do_recover_data()

2020-07-08 10:11:19 -07:00

segment.c

f2fs: don't issue flush in f2fs_flush_device_cache() for nobarrier case

2020-10-13 23:23:34 -07:00

segment.h

f2fs: fix wrong total_sections check and fsmeta check

2020-09-29 01:48:34 -07:00

shrinker.c

f2fs: fix inconsistent comments

2020-03-10 09:18:33 -07:00

super.c

f2fs: compress: introduce cic/dic slab cache

2020-09-29 09:16:36 -07:00

sysfs.c

f2fs: support age threshold based garbage collection

2020-09-11 11:11:15 -07:00

trace.c

f2fs: do not use mutex lock in atomic context

2019-03-05 19:58:06 -08:00

trace.h

f2fs: Use the correct style for SPDX License Identifier

2020-05-08 06:55:55 -07:00

verity.c

f2fs: use macro instead of f2fs verity version

2020-08-03 10:32:51 -07:00

xattr.c

f2fs: clean up kvfree

2020-09-14 11:15:37 -07:00

xattr.h

f2fs: code cleanup by removing ifdef macro surrounding

2020-05-26 18:56:10 -07:00