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Filipe Manana d3665da456 generic: test for data loss on fsync after evicting an inode and renaming it

Check that if we write some data to a file, its inode gets evicted
(while its parent directory's inode is not evicted due to being in
use), then we rename the file and fsync it, after a power failure
the file data is not lost.

This currently passes on xfs, ext4 and f2fs but fails on btrfs. The
following patch for btrfs fixes it:

  "Btrfs: fix data loss after inode eviction, renaming it, and fsync it"

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

2019-06-07 20:04:34 +08:00

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 QA output created by 552
 wrote 4096/4096 bytes at offset 0
 XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 File data after power failure:
 0000000 d3 d3 d3 d3 d3 d3 d3 d3 d3 d3 d3 d3 d3 d3 d3 d3
 *
 0004096