UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

arm64: trans_pgd: pass NULL instead of init_mm to *_populate functions 

trans_pgd_* should be independent from mm context because the tables that
are created by this code are used when there are no mm context around, as
it is between kernels. Simply replace mm_init's with NULL.

Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Acked-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20210125191923.1060122-7-pasha.tatashin@soleen.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Pavel Tatashin 2021-01-25 14:19:11 -05:00 committed by Will Deacon
parent 89d1410f4a
commit 5de59884ac
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
arch/arm64/mm/trans_pgd.c
View File

@ -67,7 +67,7 @@ static int copy_pte(struct trans_pgd_info *info, pmd_t *dst_pmdp,
dst_ptep = trans_alloc(info);
if (!dst_ptep)
return -ENOMEM;
pmd_populate_kernel(&init_mm, dst_pmdp, dst_ptep);
pmd_populate_kernel(NULL, dst_pmdp, dst_ptep);
dst_ptep = pte_offset_kernel(dst_pmdp, start);
src_ptep = pte_offset_kernel(src_pmdp, start);
@ -90,7 +90,7 @@ static int copy_pmd(struct trans_pgd_info *info, pud_t *dst_pudp,
dst_pmdp = trans_alloc(info);
if (!dst_pmdp)
return -ENOMEM;
pud_populate(&init_mm, dst_pudp, dst_pmdp);
pud_populate(NULL, dst_pudp, dst_pmdp);
}
dst_pmdp = pmd_offset(dst_pudp, start);
@ -126,7 +126,7 @@ static int copy_pud(struct trans_pgd_info *info, p4d_t *dst_p4dp,
dst_pudp = trans_alloc(info);
if (!dst_pudp)
return -ENOMEM;
p4d_populate(&init_mm, dst_p4dp, dst_pudp);
p4d_populate(NULL, dst_p4dp, dst_pudp);
}
dst_pudp = pud_offset(dst_p4dp, start);
@ -241,7 +241,7 @@ int trans_pgd_map_page(struct trans_pgd_info *info, pgd_t *trans_pgd,
p4dp = trans_alloc(info);
if (!pgdp)
return -ENOMEM;
pgd_populate(&init_mm, pgdp, p4dp);
pgd_populate(NULL, pgdp, p4dp);
}
p4dp = p4d_offset(pgdp, dst_addr);
@ -249,7 +249,7 @@ int trans_pgd_map_page(struct trans_pgd_info *info, pgd_t *trans_pgd,
pudp = trans_alloc(info);
if (!pudp)
return -ENOMEM;
p4d_populate(&init_mm, p4dp, pudp);
p4d_populate(NULL, p4dp, pudp);
}
pudp = pud_offset(p4dp, dst_addr);
@ -257,7 +257,7 @@ int trans_pgd_map_page(struct trans_pgd_info *info, pgd_t *trans_pgd,
pmdp = trans_alloc(info);
if (!pmdp)
return -ENOMEM;
pud_populate(&init_mm, pudp, pmdp);
pud_populate(NULL, pudp, pmdp);
}
pmdp = pmd_offset(pudp, dst_addr);
@ -265,7 +265,7 @@ int trans_pgd_map_page(struct trans_pgd_info *info, pgd_t *trans_pgd,
ptep = trans_alloc(info);
if (!ptep)
return -ENOMEM;
pmd_populate_kernel(&init_mm, pmdp, ptep);
pmd_populate_kernel(NULL, pmdp, ptep);
}
ptep = pte_offset_kernel(pmdp, dst_addr);