32 lines
721 B
C
32 lines
721 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2000-2005 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*/
|
|
#include "xfs.h"
|
|
#include <linux/backing-dev.h>
|
|
#include "xfs_message.h"
|
|
#include "xfs_trace.h"
|
|
|
|
void *
|
|
kmem_alloc(size_t size, xfs_km_flags_t flags)
|
|
{
|
|
int retries = 0;
|
|
gfp_t lflags = kmem_flags_convert(flags);
|
|
void *ptr;
|
|
|
|
trace_kmem_alloc(size, flags, _RET_IP_);
|
|
|
|
do {
|
|
ptr = kmalloc(size, lflags);
|
|
if (ptr || (flags & KM_MAYFAIL))
|
|
return ptr;
|
|
if (!(++retries % 100))
|
|
xfs_err(NULL,
|
|
"%s(%u) possible memory allocation deadlock size %u in %s (mode:0x%x)",
|
|
current->comm, current->pid,
|
|
(unsigned int)size, __func__, lflags);
|
|
congestion_wait(BLK_RW_ASYNC, HZ/50);
|
|
} while (1);
|
|
}
|