函数源码 |
Source File:kernel\kexec_file.c |
Create Date:2022-07-27 12:05:45 |
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531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 | static int locate_mem_hole_callback(struct resource *res, void *arg){ struct kexec_buf *kbuf = (struct kexec_buf *)arg; u64 start = res->start, end = res->end; unsigned long sz = end - start + 1; /* Returning 0 will take to next memory range */ if (sz < kbuf->memsz) return 0; if (end < kbuf->buf_min || start > kbuf->buf_max) return 0; /* * Allocate memory top down with-in ram range. Otherwise bottom up * allocation. */ if (kbuf->top_down) return locate_mem_hole_top_down(start, end, kbuf); return locate_mem_hole_bottom_up(start, end, kbuf);} |