diff options
| author | Bart Van Assche <bvanassche@acm.org> | 2013-06-26 14:27:57 +0200 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2013-06-26 11:38:02 -0500 |
| commit | cfa805f6f19639b37ee877085770a396b70f2da1 (patch) | |
| tree | a5423733b78ecbb682a3e0b33750348110093d5f /fs/dlm | |
| parent | 696b3d84605e5546cbddefdc95b9099f908fd56e (diff) | |
| download | lwn-cfa805f6f19639b37ee877085770a396b70f2da1.tar.gz lwn-cfa805f6f19639b37ee877085770a396b70f2da1.zip | |
dlm: Avoid LVB truncation
For lockspaces with an LVB length above 64 bytes, avoid truncating
the LVB while exchanging it with another node in the cluster.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm')
| -rw-r--r-- | fs/dlm/lock.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c index 1b1146670c4b..e223a911a834 100644 --- a/fs/dlm/lock.c +++ b/fs/dlm/lock.c @@ -2038,8 +2038,8 @@ static void set_lvb_lock_pc(struct dlm_rsb *r, struct dlm_lkb *lkb, b = dlm_lvb_operations[lkb->lkb_grmode + 1][lkb->lkb_rqmode + 1]; if (b == 1) { int len = receive_extralen(ms); - if (len > DLM_RESNAME_MAXLEN) - len = DLM_RESNAME_MAXLEN; + if (len > r->res_ls->ls_lvblen) + len = r->res_ls->ls_lvblen; memcpy(lkb->lkb_lvbptr, ms->m_extra, len); lkb->lkb_lvbseq = ms->m_lvbseq; } @@ -3893,8 +3893,8 @@ static int receive_lvb(struct dlm_ls *ls, struct dlm_lkb *lkb, if (!lkb->lkb_lvbptr) return -ENOMEM; len = receive_extralen(ms); - if (len > DLM_RESNAME_MAXLEN) - len = DLM_RESNAME_MAXLEN; + if (len > ls->ls_lvblen) + len = ls->ls_lvblen; memcpy(lkb->lkb_lvbptr, ms->m_extra, len); } return 0; |