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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MWHPR10MB1582.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 15b8e143-5998-4015-642e-08d91576975a X-MS-Exchange-CrossTenant-originalarrivaltime: 12 May 2021 18:48:53.2516 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: v9h47eQVThj34u/BLbCHiw8lj4zK/v6f4AnkPLcDZESDWKCNLLfUOdzk9hC0pFhDF+lHLktJCXML+XBv7bUg0A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR10MB4785 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9982 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 phishscore=0 suspectscore=0 malwarescore=0 adultscore=0 bulkscore=0 mlxlogscore=999 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2105120121 X-Proofpoint-GUID: fG3ZXdV_QpaITavQzP35wrtQcEYGl8ZL X-Proofpoint-ORIG-GUID: fG3ZXdV_QpaITavQzP35wrtQcEYGl8ZL X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9982 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 lowpriorityscore=0 malwarescore=0 bulkscore=0 spamscore=0 clxscore=1015 priorityscore=1501 adultscore=0 mlxlogscore=999 mlxscore=0 suspectscore=0 impostorscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2105120121 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Add kmem_cache_set_non_kernel(), a mechanism to allow a certain number of kmem_cache_alloc requests to succeed even when GFP_KERNEL is not set in the flags. Add kmem_cache_get_alloc() to see the size of the allocated kmem_cache. Add a define of pr_err to printk. Signed-off-by: Liam R. Howlett Signed-off-by: Matthew Wilcox (Oracle) --- tools/testing/radix-tree/linux.c | 20 ++++++++++++++++++-- tools/testing/radix-tree/linux/kernel.h | 1 + 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/radix-tree/li= nux.c index 2d9c59df60de..7225b5c46bb6 100644 --- a/tools/testing/radix-tree/linux.c +++ b/tools/testing/radix-tree/linux.c @@ -24,14 +24,29 @@ struct kmem_cache { int nr_objs; void *objs; void (*ctor)(void *); + unsigned int non_kernel; }; =20 +void kmem_cache_set_non_kernel(struct kmem_cache *cachep, unsigned int val= ) +{ + cachep->non_kernel =3D val; +} + +unsigned long kmem_cache_get_alloc(struct kmem_cache *cachep) +{ + return cachep->size * nr_allocated; +} + void *kmem_cache_alloc(struct kmem_cache *cachep, int gfp) { void *p; =20 - if (!(gfp & __GFP_DIRECT_RECLAIM)) - return NULL; + if (!(gfp & __GFP_DIRECT_RECLAIM)) { + if (!cachep->non_kernel) + return NULL; + + cachep->non_kernel--; + } =20 pthread_mutex_lock(&cachep->lock); if (cachep->nr_objs) { @@ -116,5 +131,6 @@ kmem_cache_create(const char *name, unsigned int size, = unsigned int align, ret->nr_objs =3D 0; ret->objs =3D NULL; ret->ctor =3D ctor; + ret->non_kernel =3D 0; return ret; } diff --git a/tools/testing/radix-tree/linux/kernel.h b/tools/testing/radix-= tree/linux/kernel.h index 2c3771fff2c0..e44603a181da 100644 --- a/tools/testing/radix-tree/linux/kernel.h +++ b/tools/testing/radix-tree/linux/kernel.h @@ -14,6 +14,7 @@ #include "../../../include/linux/kconfig.h" =20 #define printk printf +#define pr_err printk #define pr_info printk #define pr_debug printk #define pr_cont printk --=20 2.30.2