summaryrefslogtreecommitdiffstats
path: root/drivers/block/loop.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/block/loop.c')
-rw-r--r--drivers/block/loop.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 150012ffb387..19fe19eaa50e 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -79,6 +79,7 @@
#include <linux/ioprio.h>
#include <linux/blk-cgroup.h>
#include <linux/sched/mm.h>
+#include <linux/statfs.h>
#include "loop.h"
@@ -774,8 +775,13 @@ static void loop_config_discard(struct loop_device *lo)
granularity = 0;
} else {
+ struct kstatfs sbuf;
+
max_discard_sectors = UINT_MAX >> 9;
- granularity = inode->i_sb->s_blocksize;
+ if (!vfs_statfs(&file->f_path, &sbuf))
+ granularity = sbuf.f_bsize;
+ else
+ max_discard_sectors = 0;
}
if (max_discard_sectors) {