forked from Minki/linux
rbd: add warning messages for missing arguments
Tell the user (via dmesg) what was wrong with the arguments provided via /sys/bus/rbd/add. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Dan Mick <dan.mick@inktank.com>
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parent
06ecc6cbf7
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4fb5d67139
@ -3244,8 +3244,10 @@ static int rbd_add_parse_args(const char *buf,
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/* The first four tokens are required */
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len = next_token(&buf);
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if (!len)
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return -EINVAL; /* Missing monitor address(es) */
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if (!len) {
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rbd_warn(NULL, "no monitor address(es) provided");
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return -EINVAL;
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}
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mon_addrs = buf;
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mon_addrs_size = len + 1;
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buf += len;
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@ -3254,8 +3256,10 @@ static int rbd_add_parse_args(const char *buf,
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options = dup_token(&buf, NULL);
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if (!options)
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return -ENOMEM;
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if (!*options)
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goto out_err; /* Missing options */
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if (!*options) {
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rbd_warn(NULL, "no options provided");
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goto out_err;
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}
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spec = rbd_spec_alloc();
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if (!spec)
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@ -3264,14 +3268,18 @@ static int rbd_add_parse_args(const char *buf,
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spec->pool_name = dup_token(&buf, NULL);
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if (!spec->pool_name)
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goto out_mem;
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if (!*spec->pool_name)
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goto out_err; /* Missing pool name */
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if (!*spec->pool_name) {
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rbd_warn(NULL, "no pool name provided");
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goto out_err;
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}
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spec->image_name = dup_token(&buf, NULL);
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if (!spec->image_name)
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goto out_mem;
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if (!*spec->image_name)
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goto out_err; /* Missing image name */
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if (!*spec->image_name) {
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rbd_warn(NULL, "no image name provided");
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goto out_err;
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}
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/*
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* Snapshot name is optional; default is to use "-"
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