提交 da39822c 编写于 作者: S Sage Weil

ceph: fix broken comparison in readdir loop

Both off and fi->offset are unsigned, so the difference is always >= 0.
Compare them directly instead of the sign of the difference.
Signed-off-by: NSage Weil <sage@newdream.net>
上级 31456665
......@@ -360,7 +360,7 @@ static int ceph_readdir(struct file *filp, void *dirent, filldir_t filldir)
rinfo = &fi->last_readdir->r_reply_info;
dout("readdir frag %x num %d off %d chunkoff %d\n", frag,
rinfo->dir_nr, off, fi->offset);
while (off - fi->offset >= 0 && off - fi->offset < rinfo->dir_nr) {
while (off >= fi->offset && off - fi->offset < rinfo->dir_nr) {
u64 pos = ceph_make_fpos(frag, off);
struct ceph_mds_reply_inode *in =
rinfo->dir_in[off - fi->offset].in;
......
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