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dm: Fix wrong hugetlb_lv_max

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hugetlb_lv_max will get wrong value if the HUGETLB_LV2 mount failed.
Once hugetlb_lv_max is wrong, the following code logic messes up.

Tracked-On: #4937
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This commit is contained in:
Shuo A Liu 2020-06-08 16:48:03 +08:00 committed by wenlingz
parent 6edd21c1dc
commit bdbf135708
1 changed files with 5 additions and 8 deletions
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11
devicemodel/core/hugetlb.c
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@ -653,16 +653,13 @@ bool init_hugetlb(void)
return false; return false;
} }
for (level = HUGETLB_LV1; level < HUGETLB_LV_MAX; level++) { for (level = HUGETLB_LV1; level < HUGETLB_LV_MAX; level++)
if (mount_hugetlbfs(level) < 0) { if (mount_hugetlbfs(level) < 0)
level--;
break; break;
}
}
if (level < HUGETLB_LV1) /* mount fail for level 1 */ if (level == HUGETLB_LV1) /* mount fail for level 1 */
return false; return false;
else if (level == HUGETLB_LV1) /* mount fail for level 2 */ else if (level == HUGETLB_LV2) /* mount fail for level 2 */
pr_warn("WARNING: only level 1 hugetlb supported"); pr_warn("WARNING: only level 1 hugetlb supported");
lock_fd = open(ACRN_HUGETLB_LOCK_FILE, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR); lock_fd = open(ACRN_HUGETLB_LOCK_FILE, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);