f2fs: Convert to using invalidate_lock

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Use invalidate_lock instead of f2fs' private i_mmap_sem. The intended
purpose is exactly the same. By this conversion we fix a long standing
race between hole punching and read(2) / readahead(2) paths that can
lead to stale page cache contents.

CC: Jaegeuk Kim <jaegeuk@kernel.org>
CC: Chao Yu <yuchao0@huawei.com>
CC: linux-f2fs-devel@lists.sourceforge.net
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>

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This commit is contained in:

Jan Kara 2021-04-13 18:10:37 +02:00

parent 448f94909e

commit edc6d01bad

4 changed files with 34 additions and 38 deletions

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8

fs/f2fs/data.c

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1

fs/f2fs/f2fs.h

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62

fs/f2fs/file.c

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1

fs/f2fs/super.c

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