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ocfs2: Fix flags in ocfs2_file_lock

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The stack-glue merge changed the way we use flags in dlmglue in that we now
use the fs/dlm equivalents. Unfortunately, a merge error left the new flock
code only partially updated. This took a while to show up though, because
the lock level constants are actually identical between o2dlm and fs/dlm.
The *_CONVERT and *_NOQUEUE flags have different values though, which is
eventually causing a crash in flags_to_o2dlm().

Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Mark Fasheh 2008-07-10 09:25:39 -07:00
parent 6329d3021b
commit e988cf1cfe
1 changed files with 7 additions and 7 deletions
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14
fs/ocfs2/dlmglue.c
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@ -1554,8 +1554,8 @@ static int ocfs2_flock_handle_signal(struct ocfs2_lock_res *lockres,
*/
int ocfs2_file_lock(struct file *file, int ex, int trylock)
{
int ret, level = ex ? LKM_EXMODE : LKM_PRMODE;
unsigned int lkm_flags = trylock ? LKM_NOQUEUE : 0;
int ret, level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
unsigned int lkm_flags = trylock ? DLM_LKF_NOQUEUE : 0;
unsigned long flags;
struct ocfs2_file_private *fp = file->private_data;
struct ocfs2_lock_res *lockres = &fp->fp_flock;
@ -1582,7 +1582,7 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock)
* Get the lock at NLMODE to start - that way we
* can cancel the upconvert request if need be.
*/
ret = ocfs2_lock_create(osb, lockres, LKM_NLMODE, 0);
ret = ocfs2_lock_create(osb, lockres, DLM_LOCK_NL, 0);
if (ret < 0) {
mlog_errno(ret);
goto out;
@ -1597,7 +1597,7 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock)
}
lockres->l_action = OCFS2_AST_CONVERT;
lkm_flags |= LKM_CONVERT;
lkm_flags |= DLM_LKF_CONVERT;
lockres->l_requested = level;
lockres_or_flags(lockres, OCFS2_LOCK_BUSY);
@ -1664,7 +1664,7 @@ void ocfs2_file_unlock(struct file *file)
if (!(lockres->l_flags & OCFS2_LOCK_ATTACHED))
return;
if (lockres->l_level == LKM_NLMODE)
if (lockres->l_level == DLM_LOCK_NL)
return;
mlog(0, "Unlock: \"%s\" flags: 0x%lx, level: %d, act: %d\n",
@ -1678,11 +1678,11 @@ void ocfs2_file_unlock(struct file *file)
lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED);
lockres->l_blocking = DLM_LOCK_EX;
gen = ocfs2_prepare_downconvert(lockres, LKM_NLMODE);
gen = ocfs2_prepare_downconvert(lockres, DLM_LOCK_NL);
lockres_add_mask_waiter(lockres, &mw, OCFS2_LOCK_BUSY, 0);
spin_unlock_irqrestore(&lockres->l_lock, flags);
ret = ocfs2_downconvert_lock(osb, lockres, LKM_NLMODE, 0, gen);
ret = ocfs2_downconvert_lock(osb, lockres, DLM_LOCK_NL, 0, gen);
if (ret) {
mlog_errno(ret);
return;