diff options
| author | David S. Miller <davem@davemloft.net> | 2019-06-17 19:48:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-17 20:20:36 -0700 |
| commit | 13091aa30535b719e269f20a7bc34002bf5afae5 (patch) | |
| tree | bd17956c3ce606a119fadbd43bfa1c0c10006984 /mm/vmalloc.c | |
| parent | f97252a8c33f0e02f4ffbf61dc94cd38164007bc (diff) | |
| parent | 29f785ff76b65696800b75c3d8e0b58e603bb1d0 (diff) | |
| download | linux-13091aa30535b719e269f20a7bc34002bf5afae5.tar.gz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Honestly all the conflicts were simple overlapping changes,
nothing really interesting to report.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/vmalloc.c')
| -rw-r--r-- | mm/vmalloc.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 7350a124524b..4c9e150e5ad3 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -2123,9 +2123,9 @@ static inline void set_area_direct_map(const struct vm_struct *area, /* Handle removing and resetting vm mappings related to the vm_struct. */ static void vm_remove_mappings(struct vm_struct *area, int deallocate_pages) { - unsigned long addr = (unsigned long)area->addr; unsigned long start = ULONG_MAX, end = 0; int flush_reset = area->flags & VM_FLUSH_RESET_PERMS; + int flush_dmap = 0; int i; /* @@ -2135,8 +2135,8 @@ static void vm_remove_mappings(struct vm_struct *area, int deallocate_pages) * execute permissions, without leaving a RW+X window. */ if (flush_reset && !IS_ENABLED(CONFIG_ARCH_HAS_SET_DIRECT_MAP)) { - set_memory_nx(addr, area->nr_pages); - set_memory_rw(addr, area->nr_pages); + set_memory_nx((unsigned long)area->addr, area->nr_pages); + set_memory_rw((unsigned long)area->addr, area->nr_pages); } remove_vm_area(area->addr); @@ -2160,9 +2160,11 @@ static void vm_remove_mappings(struct vm_struct *area, int deallocate_pages) * the vm_unmap_aliases() flush includes the direct map. */ for (i = 0; i < area->nr_pages; i++) { - if (page_address(area->pages[i])) { + unsigned long addr = (unsigned long)page_address(area->pages[i]); + if (addr) { start = min(addr, start); - end = max(addr, end); + end = max(addr + PAGE_SIZE, end); + flush_dmap = 1; } } @@ -2172,7 +2174,7 @@ static void vm_remove_mappings(struct vm_struct *area, int deallocate_pages) * reset the direct map permissions to the default. */ set_area_direct_map(area, set_direct_map_invalid_noflush); - _vm_unmap_aliases(start, end, 1); + _vm_unmap_aliases(start, end, flush_dmap); set_area_direct_map(area, set_direct_map_default_noflush); } |