staging: erofs: add erofs_map_blocks_iter

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This patch introduces an iterable L2P mapping
operation 'erofs_map_blocks_iter'.
Compared with 'erofs_map_blocks', it avoids
a number of redundant 'release and regrab'
processes if they request the same meta page.

Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

Gao Xiang 2018-07-26 20:21:58 +08:00 • committed by Greg Kroah-Hartman

parent 5eb20ec3e5

commit 02827e1796

5 changed files with 300 additions and 2 deletions

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10

drivers/staging/erofs/Kconfig

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1

drivers/staging/erofs/Makefile

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36

drivers/staging/erofs/data.c

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12

drivers/staging/erofs/internal.h

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243

drivers/staging/erofs/unzip_vle.c

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