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authorSteven Whitehouse <swhiteho@redhat.com>2008-06-03 14:34:14 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2008-06-27 09:39:47 +0100
commitb2cad26cfc2091050574a460b304ed103a35dbda (patch)
tree3238ab4b7406836e98d27de5c70dc8419675a914
parent1bdad606338debc6384b2844f1b53cc436b3ac90 (diff)
[GFS2] Remove obsolete conversion deadlock avoidance code
This is only used by GFS1 so can be removed. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
-rw-r--r--fs/gfs2/locking/dlm/lock.c23
-rw-r--r--include/linux/lm_interface.h2
2 files changed, 1 insertions, 24 deletions
diff --git a/fs/gfs2/locking/dlm/lock.c b/fs/gfs2/locking/dlm/lock.c
index 871ffc9578f..894df4567a0 100644
--- a/fs/gfs2/locking/dlm/lock.c
+++ b/fs/gfs2/locking/dlm/lock.c
@@ -80,7 +80,6 @@ static void process_complete(struct gdlm_lock *lp)
{
struct gdlm_ls *ls = lp->ls;
struct lm_async_cb acb;
- s16 prev_mode = lp->cur;
memset(&acb, 0, sizeof(acb));
@@ -160,15 +159,7 @@ static void process_complete(struct gdlm_lock *lp)
lp->lksb.sb_status, lp->lockname.ln_type,
(unsigned long long)lp->lockname.ln_number,
lp->flags);
- if (lp->lksb.sb_status == -EDEADLOCK &&
- lp->ls->fsflags & LM_MFLAG_CONV_NODROP) {
- lp->req = lp->cur;
- acb.lc_ret |= LM_OUT_CONV_DEADLK;
- if (lp->cur == DLM_LOCK_IV)
- lp->lksb.sb_lkid = 0;
- goto out;
- } else
- return;
+ return;
}
/*
@@ -268,10 +259,6 @@ out:
acb.lc_name = lp->lockname;
acb.lc_ret |= gdlm_make_lmstate(lp->cur);
- if (!test_and_clear_bit(LFL_NOCACHE, &lp->flags) &&
- (lp->cur > DLM_LOCK_NL) && (prev_mode > DLM_LOCK_NL))
- acb.lc_ret |= LM_OUT_CACHEABLE;
-
ls->fscb(ls->sdp, LM_CB_ASYNC, &acb);
}
@@ -376,14 +363,6 @@ static inline unsigned int make_flags(struct gdlm_lock *lp,
if (lp->lksb.sb_lkid != 0) {
lkf |= DLM_LKF_CONVERT;
-
- /* Conversion deadlock avoidance by DLM */
-
- if (!(lp->ls->fsflags & LM_MFLAG_CONV_NODROP) &&
- !test_bit(LFL_FORCE_PROMOTE, &lp->flags) &&
- !(lkf & DLM_LKF_NOQUEUE) &&
- cur > DLM_LOCK_NL && req > DLM_LOCK_NL && cur != req)
- lkf |= DLM_LKF_CONVDEADLK;
}
if (lp->lvb)
diff --git a/include/linux/lm_interface.h b/include/linux/lm_interface.h
index d0a7112b971..2ed8fa1b762 100644
--- a/include/linux/lm_interface.h
+++ b/include/linux/lm_interface.h
@@ -122,11 +122,9 @@ typedef void (*lm_callback_t) (void *ptr, unsigned int type, void *data);
*/
#define LM_OUT_ST_MASK 0x00000003
-#define LM_OUT_CACHEABLE 0x00000004
#define LM_OUT_CANCELED 0x00000008
#define LM_OUT_ASYNC 0x00000080
#define LM_OUT_ERROR 0x00000100
-#define LM_OUT_CONV_DEADLK 0x00000200
/*
* lm_callback_t types