Other backstores open backing devices in exclusive mode, fileio should as
well.
Reported-by: Gris Ge <fge@xxxxxxxxxx>
Signed-off-by: Andy Grover <agrover@xxxxxxxxxx>
---
drivers/target/target_core_file.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 9e21005..f23e10d 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -137,7 +137,7 @@ static struct se_device *fd_create_virtdevice(
* Use O_DSYNC by default instead of O_SYNC to forgo syncing
* of pure timestamp updates.
*/
- flags = O_RDWR | O_CREAT | O_LARGEFILE | O_DSYNC;
+ flags = O_RDWR | O_CREAT | O_LARGEFILE | O_DSYNC | O_EXCL;
file = filp_open(dev_p, flags, 0600);
if (IS_ERR(file)) {
--
1.7.1
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