Message ID | 20230704125702.23180-4-jack@suse.cz (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | block: Add config option to not allow writing to mounted devices | expand |
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index cbeb8a555fe3..8181285b7549 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1112,8 +1112,9 @@ static struct bdev_handle *ext4_blkdev_get(dev_t dev, struct super_block *sb) { struct bdev_handle *handle; - handle = blkdev_get_by_dev(dev, BLK_OPEN_READ | BLK_OPEN_WRITE, sb, - &ext4_holder_ops); + handle = blkdev_get_by_dev(dev, + BLK_OPEN_READ | BLK_OPEN_WRITE | BLK_OPEN_BLOCK_WRITES, + sb, &ext4_holder_ops); if (IS_ERR(handle)) goto fail; return handle;
Ask block layer to not allow other writers to open block device used for ext4 journal. Signed-off-by: Jan Kara <jack@suse.cz> --- fs/ext4/super.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)