diff options
| author | Andreas Hindborg <a.hindborg@samsung.com> | 2023-08-04 13:46:09 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-08-08 15:45:53 -0600 |
| commit | 1a6e88b9593b63ccdfe1d84e3f99dd91e4f8d490 (patch) | |
| tree | 57efe1cf2dfe7045f04a3e945a252490426961b3 /drivers/block | |
| parent | 9d4ed6d46272bb60036a6539aae74eafcbbb3d2d (diff) | |
| download | linux-1a6e88b9593b63ccdfe1d84e3f99dd91e4f8d490.tar.gz | |
ublk: move check for empty address field on command submission
In preparation for zoned storage support, move the check for empty `addr`
field into the command handler case statement. Note that the check makes no
sense for `UBLK_IO_NEED_GET_DATA` because the `addr` field must always be
set for this command.
Signed-off-by: Andreas Hindborg <a.hindborg@samsung.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20230804114610.179530-3-nmi@metaspace.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/ublk_drv.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index 8d271901efac6..0e38475796106 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -1419,11 +1419,6 @@ static int __ublk_ch_uring_cmd(struct io_uring_cmd *cmd, ^ (_IOC_NR(cmd_op) == UBLK_IO_NEED_GET_DATA)) goto out; - if (ublk_support_user_copy(ubq) && ub_cmd->addr) { - ret = -EINVAL; - goto out; - } - ret = ublk_check_cmd_op(cmd_op); if (ret) goto out; @@ -1450,6 +1445,10 @@ static int __ublk_ch_uring_cmd(struct io_uring_cmd *cmd, */ if (!ub_cmd->addr && !ublk_need_get_data(ubq)) goto out; + } else if (ub_cmd->addr) { + /* User copy requires addr to be unset */ + ret = -EINVAL; + goto out; } ublk_fill_io_cmd(io, cmd, ub_cmd->addr); @@ -1469,7 +1468,12 @@ static int __ublk_ch_uring_cmd(struct io_uring_cmd *cmd, if (!ub_cmd->addr && (!ublk_need_get_data(ubq) || req_op(req) == REQ_OP_READ)) goto out; + } else if (ub_cmd->addr) { + /* User copy requires addr to be unset */ + ret = -EINVAL; + goto out; } + ublk_fill_io_cmd(io, cmd, ub_cmd->addr); ublk_commit_completion(ub, ub_cmd); break; |