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Jeff Layton
702421f528
I'm working on a set of kernel patches to change how writeback errors are handled and reported in the kernel. Instead of reporting a writeback error to only the first fsync caller on the file, it has the the kernel report them once on every file description that was open at the time of the error. This patch adds a test for this new behavior. Basically, open many fds to the same file, turn on dm_error, write to each of the fds, and then fsync them all to ensure that they all get an error back. To do that, I'm adding a new tools/dmerror script that the C program can use to load the error table from the script. It's also suitable for setting up, frobbing and tearing down a dmerror device for by-hand testing. For now, only ext2/3/4 and xfs are whitelisted on this test, since those filesystems are included in the initial patchset. We can add to that as we convert filesystems, and eventually make it a more general test. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
4 lines
55 B
Plaintext
4 lines
55 B
Plaintext
QA output created by 441
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Format and mount
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Test passed!
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