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984fc4e76d
linux/fs/f2fs
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Chao Yu 984fc4e76d f2fs: support idmapped mounts 
This patch enables idmapped mounts for f2fs, since all dedicated helpers
for this functionality existsm, so, in this patch we just pass down the
user_namespace argument from the VFS methods to the relevant helpers.

Simple idmap example on f2fs image:

1. truncate -s 128M f2fs.img
2. mkfs.f2fs f2fs.img
3. mount f2fs.img /mnt/f2fs/
4. touch /mnt/f2fs/file

5. ls -ln /mnt/f2fs/
total 0
-rw-r--r-- 1 0 0 0 2月   4 13:17 file

6. ./mount-idmapped --map-mount b:0:1001:1 /mnt/f2fs/ /mnt/scratch_f2fs/

7. ls -ln /mnt/scratch_f2fs/
total 0
-rw-r--r-- 1 1001 1001 0 2月   4 13:17 file

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2022-02-12 06:20:46 -08:00
..
acl.c f2fs: support idmapped mounts 2022-02-12 06:20:46 -08:00
acl.h vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
checkpoint.c f2fs: add a way to limit roll forward recovery time 2022-02-12 05:58:18 -08:00
compress.c f2fs: move f2fs to use reader-unfair rwsems 2022-01-24 17:40:04 -08:00
data.c f2fs: introduce F2FS_IPU_HONOR_OPU_WRITE ipu policy 2022-02-07 11:28:35 -08:00
debug.c f2fs: add a way to limit roll forward recovery time 2022-02-12 05:58:18 -08:00
dir.c f2fs: move f2fs to use reader-unfair rwsems 2022-01-24 17:40:04 -08:00
extent_cache.c f2fs: support fault injection for f2fs_kmem_cache_alloc() 2021-08-17 11:59:05 -07:00
f2fs.h f2fs: add a way to limit roll forward recovery time 2022-02-12 05:58:18 -08:00
file.c f2fs: support idmapped mounts 2022-02-12 06:20:46 -08:00
gc.c f2fs: fix to unlock page correctly in error path of is_alive() 2022-02-03 22:21:28 -08:00
gc.h f2fs: introduce gc_merge mount option 2021-03-30 18:48:56 -07:00
hash.c f2fs: Handle casefolding with Encryption 2020-12-02 22:00:21 -08:00
inline.c f2fs: move f2fs to use reader-unfair rwsems 2022-01-24 17:40:04 -08:00
inode.c f2fs-for-5.17-rc1 2022-01-19 11:50:20 +02:00
iostat.c f2fs: use iomap for direct I/O 2021-12-10 15:48:30 -08:00
iostat.h f2fs: introduce periodic iostat io latency traces 2021-08-23 10:25:51 -07:00
Kconfig f2fs: implement iomap operations 2021-12-04 10:53:35 -08:00
Makefile f2fs: separate out iostat feature 2021-08-23 10:25:51 -07:00
namei.c f2fs: support idmapped mounts 2022-02-12 06:20:46 -08:00
node.c f2fs: add a way to limit roll forward recovery time 2022-02-12 05:58:18 -08:00
node.h f2fs: add a way to limit roll forward recovery time 2022-02-12 05:58:18 -08:00
recovery.c f2fs: add a way to limit roll forward recovery time 2022-02-12 05:58:18 -08:00
segment.c f2fs: move discard parameters into discard_cmd_control 2022-02-02 16:34:46 -08:00
segment.h f2fs: introduce F2FS_IPU_HONOR_OPU_WRITE ipu policy 2022-02-07 11:28:35 -08:00
shrinker.c f2fs: avoid race condition for shrinker count 2020-12-03 00:59:26 -08:00
super.c f2fs: support idmapped mounts 2022-02-12 06:20:46 -08:00
sysfs.c f2fs: add a way to limit roll forward recovery time 2022-02-12 05:58:18 -08:00
verity.c f2fs: move f2fs to use reader-unfair rwsems 2022-01-24 17:40:04 -08:00
xattr.c f2fs: move f2fs to use reader-unfair rwsems 2022-01-24 17:40:04 -08:00
xattr.h f2fs: code cleanup by removing ifdef macro surrounding 2020-05-26 18:56:10 -07:00