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| author | Stefan Haberland <sth@linux.ibm.com> | 2021-05-25 14:50:06 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-05-25 12:54:00 -0600 |
| commit | c0c8a8397fa8a74d04915f4d3d28cb4a5d401427 (patch) | |
| tree | 3370ba208b9794b5124daa151b715b0b71d5c162 /drivers/s390/block/dasd_fba.c | |
| parent | bc6a385132601c29a6da1dbf8148c0d3c9ad36dc (diff) | |
| download | linux-c0c8a8397fa8a74d04915f4d3d28cb4a5d401427.tar.gz | |
s390/dasd: add missing discipline function
Fix crash with illegal operation exception in dasd_device_tasklet.
Commit b72949328869 ("s390/dasd: Prepare for additional path event handling")
renamed the verify_path function for ECKD but not for FBA and DIAG.
This leads to a panic when the path verification function is called for a
FBA or DIAG device.
Fix by defining a wrapper function for dasd_generic_verify_path().
Fixes: b72949328869 ("s390/dasd: Prepare for additional path event handling")
Cc: <stable@vger.kernel.org> #5.11
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Link: https://lore.kernel.org/r/20210525125006.157531-2-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/s390/block/dasd_fba.c')
| -rw-r--r-- | drivers/s390/block/dasd_fba.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index 4789410885e4f..3ad319aee51ed 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -794,13 +794,19 @@ static void dasd_fba_setup_blk_queue(struct dasd_block *block) blk_queue_flag_set(QUEUE_FLAG_DISCARD, q); } +static int dasd_fba_pe_handler(struct dasd_device *device, + __u8 tbvpm, __u8 fcsecpm) +{ + return dasd_generic_verify_path(device, tbvpm); +} + static struct dasd_discipline dasd_fba_discipline = { .owner = THIS_MODULE, .name = "FBA ", .ebcname = "FBA ", .check_device = dasd_fba_check_characteristics, .do_analysis = dasd_fba_do_analysis, - .verify_path = dasd_generic_verify_path, + .pe_handler = dasd_fba_pe_handler, .setup_blk_queue = dasd_fba_setup_blk_queue, .fill_geometry = dasd_fba_fill_geometry, .start_IO = dasd_start_IO, |