f2fs: support multiple devices

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This patch implements multiple devices support for f2fs.
Given multiple devices by mkfs.f2fs, f2fs shows them entirely as one big
volume under one f2fs instance.

Internal block management is very simple, but we will modify block allocation
and background GC policy to boost IO speed by exploiting them accoording to
each device speed.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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This commit is contained in:

Jaegeuk Kim 2016-10-06 19:02:05 -07:00

parent e57e9ae5b1

commit 3c62be17d4

5 changed files with 277 additions and 74 deletions

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55

fs/f2fs/data.c

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29

fs/f2fs/f2fs.h

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119

fs/f2fs/segment.c

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138

fs/f2fs/super.c

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10

include/linux/f2fs_fs.h

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