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path: root/drivers/target/target_core_file.c
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Diffstat (limited to 'drivers/target/target_core_file.c')
-rw-r--r--drivers/target/target_core_file.c20
1 files changed, 6 insertions, 14 deletions
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index b0cb5b95e892..cce455929778 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -241,6 +241,7 @@ struct target_core_file_cmd {
unsigned long len;
struct se_cmd *cmd;
struct kiocb iocb;
+ struct bio_vec bvecs[];
};
static void cmd_rw_aio_complete(struct kiocb *iocb, long ret, long ret2)
@@ -268,29 +269,22 @@ fd_execute_rw_aio(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
struct target_core_file_cmd *aio_cmd;
struct iov_iter iter = {};
struct scatterlist *sg;
- struct bio_vec *bvec;
ssize_t len = 0;
int ret = 0, i;
- aio_cmd = kmalloc(sizeof(struct target_core_file_cmd), GFP_KERNEL);
+ aio_cmd = kmalloc(struct_size(aio_cmd, bvecs, sgl_nents), GFP_KERNEL);
if (!aio_cmd)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- bvec = kcalloc(sgl_nents, sizeof(struct bio_vec), GFP_KERNEL);
- if (!bvec) {
- kfree(aio_cmd);
- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- }
-
for_each_sg(sgl, sg, sgl_nents, i) {
- bvec[i].bv_page = sg_page(sg);
- bvec[i].bv_len = sg->length;
- bvec[i].bv_offset = sg->offset;
+ aio_cmd->bvecs[i].bv_page = sg_page(sg);
+ aio_cmd->bvecs[i].bv_len = sg->length;
+ aio_cmd->bvecs[i].bv_offset = sg->offset;
len += sg->length;
}
- iov_iter_bvec(&iter, is_write, bvec, sgl_nents, len);
+ iov_iter_bvec(&iter, is_write, aio_cmd->bvecs, sgl_nents, len);
aio_cmd->cmd = cmd;
aio_cmd->len = len;
@@ -307,8 +301,6 @@ fd_execute_rw_aio(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
else
ret = call_read_iter(file, &aio_cmd->iocb, &iter);
- kfree(bvec);
-
if (ret != -EIOCBQUEUED)
cmd_rw_aio_complete(&aio_cmd->iocb, ret, 0);