| PART_VALID(9) | Block Devices | PART_VALID(9) |
NAME¶
part_valid - see if check corresponds to a partition within disk
SYNOPSIS¶
bool part_valid(struct gendisk * disk, struct hd_struct * check);
ARGUMENTS¶
disk
gendisk of interest
check
hd_struct pointer to check against the partition
table
DESCRIPTION¶
Check to see if it is safe to dereference check. We don´t always know if req->part is filled in by the block layer. This routine is called to avoid dereferencing a bogus pointer. See req_to_part.
CONTEXT¶
RCU read locked.
RETURNS¶
true on success, false on failure
COPYRIGHT¶
| April 2023 | Kernel Hackers Manual 2.6. |