diff options
| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-02-28 02:44:19 -0800 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-04-07 23:27:44 -0700 |
| commit | ee920469d61e896d124fec528250ecfba1ec9f8d (patch) | |
| tree | d5227fabd4484130b94e75a8f1f819fec6a18c6a /drivers/target | |
| parent | 72c0385014a140b6029c5c8bf88efb9ad166ae48 (diff) | |
| download | linux-stable-ee920469d61e896d124fec528250ecfba1ec9f8d.tar.gz linux-stable-ee920469d61e896d124fec528250ecfba1ec9f8d.tar.bz2 linux-stable-ee920469d61e896d124fec528250ecfba1ec9f8d.zip | |
target/file: Add checks for backend DIF emulation
Make sure that FILEIO only attempts to use backend DIF emulation
when it's actually enabled at device level.
Cc: Martin Petersen <martin.petersen@oracle.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_file.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index cd9393545b7a..fa54835f398b 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -584,7 +584,7 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, if (data_direction == DMA_FROM_DEVICE) { memset(&fd_prot, 0, sizeof(struct fd_prot)); - if (cmd->prot_type) { + if (cmd->prot_type && dev->dev_attrib.pi_prot_type) { ret = fd_do_prot_rw(cmd, &fd_prot, false); if (ret < 0) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; @@ -592,7 +592,7 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, ret = fd_do_rw(cmd, sgl, sgl_nents, 0); - if (ret > 0 && cmd->prot_type) { + if (ret > 0 && cmd->prot_type && dev->dev_attrib.pi_prot_type) { u32 sectors = cmd->data_length / dev->dev_attrib.block_size; rc = sbc_dif_verify_read(cmd, cmd->t_task_lba, sectors, @@ -608,7 +608,7 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, } else { memset(&fd_prot, 0, sizeof(struct fd_prot)); - if (cmd->prot_type) { + if (cmd->prot_type && dev->dev_attrib.pi_prot_type) { u32 sectors = cmd->data_length / dev->dev_attrib.block_size; ret = fd_do_prot_rw(cmd, &fd_prot, false); @@ -646,7 +646,7 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, vfs_fsync_range(fd_dev->fd_file, start, end, 1); } - if (ret > 0 && cmd->prot_type) { + if (ret > 0 && cmd->prot_type && dev->dev_attrib.pi_prot_type) { ret = fd_do_prot_rw(cmd, &fd_prot, true); if (ret < 0) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; |