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find_vmap_lowest_match() is now able to handle different roots. With
DEBUG_AUGMENT_LOWEST_MATCH_CHECK enabled as:
: --- a/mm/vmalloc.c
: +++ b/mm/vmalloc.c
: @@ -713,7 +713,7 @@ EXPORT_SYMBOL(vmalloc_to_pfn);
: /*** Global kva allocator ***/
:
: -#define DEBUG_AUGMENT_LOWEST_MATCH_CHECK 0
: +#define DEBUG_AUGMENT_LOWEST_MATCH_CHECK 1
compilation failed as:
mm/vmalloc.c: In function 'find_vmap_lowest_match_check':
mm/vmalloc.c:1328:32: warning: passing argument 1 of 'find_vmap_lowest_match' makes pointer from integer without a cast [-Wint-conversion]
1328 | va_1 = find_vmap_lowest_match(size, align, vstart, false);
| ^~~~
| |
| long unsigned int
mm/vmalloc.c:1236:40: note: expected 'struct rb_root *' but argument is of type 'long unsigned int'
1236 | find_vmap_lowest_match(struct rb_root *root, unsigned long size,
| ~~~~~~~~~~~~~~~~^~~~
mm/vmalloc.c:1328:9: error: too few arguments to function 'find_vmap_lowest_match'
1328 | va_1 = find_vmap_lowest_match(size, align, vstart, false);
| ^~~~~~~~~~~~~~~~~~~~~~
mm/vmalloc.c:1236:1: note: declared here
1236 | find_vmap_lowest_match(struct rb_root *root, unsigned long size,
| ^~~~~~~~~~~~~~~~~~~~~~
Extend find_vmap_lowest_match_check() and find_vmap_lowest_linear_match()
with extra arguments to fix this.
Link: https://lkml.kernel.org/r/20220906060548.1127396-1-song@kernel.org
Link: https://lkml.kernel.org/r/20220831052734.3423079-1-song@kernel.org
Fixes: f9863be49312 ("mm/vmalloc: extend __alloc_vmap_area() with extra arguments")
Signed-off-by: Song Liu <song@kernel.org>
Reviewed-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
bd1264c37c