f2fs: do not expose unwritten blocks to user by DIO

Browse source

DIO preallocates physical blocks before writing data, but if an error occurrs
or power-cut happens, we can see block contents from the disk. This patch tries
to fix it by 1) turning to buffered writes for DIO into holes, 2) truncating
unwritten blocks from error or power-cut.

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

...

This commit is contained in:

Jaegeuk Kim 2021-11-12 14:31:16 -08:00

parent b31bf0f96e

commit d4dd19ec1e

4 changed files with 35 additions and 10 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

5

fs/f2fs/data.c

View file

5

fs/f2fs/f2fs.h

View file

27

fs/f2fs/file.c

View file

8

fs/f2fs/inode.c

View file