afs: Fix afs_statfs() to not let the values go below zero (f11a016a) · Commits · 戴 / test

Fix afs_statfs() so that the value for f_bavail and f_bfree don't go "negative" if the number of blocks in use by a volume exceeds the max quota for that volume. Signed-off-by:

David Howells <dhowells@redhat.com>

fs/afs/super.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -729,7 +729,10 @@ static void afs_get_volume_status_success(struct afs_operation *op)
		buf->f_blocks = vs->part_max_blocks;
		else
		buf->f_blocks = vs->max_quota;
		buf->f_bavail = buf->f_bfree = buf->f_blocks - vs->blocks_in_use;

		if (buf->f_blocks > vs->blocks_in_use)
		buf->f_bavail = buf->f_bfree =
		buf->f_blocks - vs->blocks_in_use;
		}

		static const struct afs_operation_ops afs_get_volume_status_operation = {

Admin message