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kmemleak: Remove alloc_bootmem annotations introduced in the past
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kmemleak_alloc() calls were added in some places where alloc_bootmem was
called. Since now kmemleak tracks bootmem allocations, these explicit
calls should be run.

Signed-off-by: Catalin Marinas <[email protected]>
Cc: Ingo Molnar <[email protected]>
Acked-by: Pekka Enberg <[email protected]>
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ctmarinas committed Jul 9, 2009
1 parent ec3a354 commit 264ef8a
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Showing 2 changed files with 3 additions and 18 deletions.
7 changes: 0 additions & 7 deletions kernel/pid.c
Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,6 @@
#include <linux/pid_namespace.h>
#include <linux/init_task.h>
#include <linux/syscalls.h>
#include <linux/kmemleak.h>

#define pid_hashfn(nr, ns) \
hash_long((unsigned long)nr + (unsigned long)ns, pidhash_shift)
Expand Down Expand Up @@ -513,12 +512,6 @@ void __init pidhash_init(void)
pid_hash = alloc_bootmem(pidhash_size * sizeof(*(pid_hash)));
if (!pid_hash)
panic("Could not alloc pidhash!\n");
/*
* pid_hash contains references to allocated struct pid objects and it
* must be scanned by kmemleak to avoid false positives.
*/
kmemleak_alloc(pid_hash, pidhash_size * sizeof(*(pid_hash)), 0,
GFP_KERNEL);
for (i = 0; i < pidhash_size; i++)
INIT_HLIST_HEAD(&pid_hash[i]);
}
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14 changes: 3 additions & 11 deletions mm/page_alloc.c
Original file line number Diff line number Diff line change
Expand Up @@ -4745,8 +4745,10 @@ void *__init alloc_large_system_hash(const char *tablename,
* some pages at the end of hash table which
* alloc_pages_exact() automatically does
*/
if (get_order(size) < MAX_ORDER)
if (get_order(size) < MAX_ORDER) {
table = alloc_pages_exact(size, GFP_ATOMIC);
kmemleak_alloc(table, size, 1, GFP_ATOMIC);
}
}
} while (!table && size > PAGE_SIZE && --log2qty);

Expand All @@ -4764,16 +4766,6 @@ void *__init alloc_large_system_hash(const char *tablename,
if (_hash_mask)
*_hash_mask = (1 << log2qty) - 1;

/*
* If hashdist is set, the table allocation is done with __vmalloc()
* which invokes the kmemleak_alloc() callback. This function may also
* be called before the slab and kmemleak are initialised when
* kmemleak simply buffers the request to be executed later
* (GFP_ATOMIC flag ignored in this case).
*/
if (!hashdist)
kmemleak_alloc(table, size, 1, GFP_ATOMIC);

return table;
}

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