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| author | Jaehoon Kim <jhkim@linux.ibm.com> | 2025-09-25 17:47:07 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-19 16:37:37 +0200 |
| commit | f84f57b777359d859f11a7c9be0cef4e36fb5094 (patch) | |
| tree | 9a8174712e4b67704fd4e2f624b81e10bf856392 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 4e6f98bf23cde3635ed3b63a8c65eb4b2ae79d55 (diff) | |
| download | kernel-f84f57b777359d859f11a7c9be0cef4e36fb5094.tar.gz | |
s390/dasd: Return BLK_STS_INVAL for EINVAL from do_dasd_request
commit 8f4ed0ce4857ceb444174503fc9058720d4faaa1 upstream.
Currently, if CCW request creation fails with -EINVAL, the DASD driver
returns BLK_STS_IOERR to the block layer.
This can happen, for example, when a user-space application such as QEMU
passes a misaligned buffer, but the original cause of the error is
masked as a generic I/O error.
This patch changes the behavior so that -EINVAL is returned as
BLK_STS_INVAL, allowing user space to properly detect alignment issues
instead of interpreting them as I/O errors.
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Cc: stable@vger.kernel.org #6.11+
Signed-off-by: Jaehoon Kim <jhkim@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions