ocfs2: Use global DLM_ constants in generic code.
The ocfs2 generic code should use the values in <linux/dlmconstants.h>. stackglue.c will convert them to o2dlm values. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Joel Becker
Mark Fasheh
Родитель
24ef1815e5
Коммит
bd3e76105d
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@ -37,8 +37,6 @@
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#include <cluster/nodemanager.h>
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#include <cluster/tcp.h>
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#include <dlm/dlmapi.h>
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#define MLOG_MASK_PREFIX ML_DLM_GLUE
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#include <cluster/masklog.h>
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@ -317,7 +315,7 @@ static inline struct ocfs2_super *ocfs2_get_lockres_osb(struct ocfs2_lock_res *l
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static int ocfs2_lock_create(struct ocfs2_super *osb,
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struct ocfs2_lock_res *lockres,
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int level,
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int dlm_flags);
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u32 dlm_flags);
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static inline int ocfs2_may_continue_on_blocked_lock(struct ocfs2_lock_res *lockres,
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int wanted);
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static void ocfs2_cluster_unlock(struct ocfs2_super *osb,
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@ -407,9 +405,9 @@ static void ocfs2_lock_res_init_common(struct ocfs2_super *osb,
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res->l_ops = ops;
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res->l_priv = priv;
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res->l_level = LKM_IVMODE;
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res->l_requested = LKM_IVMODE;
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res->l_blocking = LKM_IVMODE;
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res->l_level = DLM_LOCK_IV;
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res->l_requested = DLM_LOCK_IV;
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res->l_blocking = DLM_LOCK_IV;
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res->l_action = OCFS2_AST_INVALID;
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res->l_unlock_action = OCFS2_UNLOCK_INVALID;
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@ -605,10 +603,10 @@ static inline void ocfs2_inc_holders(struct ocfs2_lock_res *lockres,
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BUG_ON(!lockres);
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switch(level) {
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case LKM_EXMODE:
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case DLM_LOCK_EX:
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lockres->l_ex_holders++;
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break;
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case LKM_PRMODE:
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case DLM_LOCK_PR:
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lockres->l_ro_holders++;
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break;
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default:
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@ -626,11 +624,11 @@ static inline void ocfs2_dec_holders(struct ocfs2_lock_res *lockres,
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BUG_ON(!lockres);
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switch(level) {
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case LKM_EXMODE:
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case DLM_LOCK_EX:
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BUG_ON(!lockres->l_ex_holders);
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lockres->l_ex_holders--;
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break;
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case LKM_PRMODE:
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case DLM_LOCK_PR:
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BUG_ON(!lockres->l_ro_holders);
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lockres->l_ro_holders--;
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break;
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@ -645,12 +643,12 @@ static inline void ocfs2_dec_holders(struct ocfs2_lock_res *lockres,
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* lock types are added. */
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static inline int ocfs2_highest_compat_lock_level(int level)
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{
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int new_level = LKM_EXMODE;
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int new_level = DLM_LOCK_EX;
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if (level == LKM_EXMODE)
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new_level = LKM_NLMODE;
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else if (level == LKM_PRMODE)
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new_level = LKM_PRMODE;
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if (level == DLM_LOCK_EX)
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new_level = DLM_LOCK_NL;
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else if (level == DLM_LOCK_PR)
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new_level = DLM_LOCK_PR;
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return new_level;
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}
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@ -689,12 +687,12 @@ static inline void ocfs2_generic_handle_downconvert_action(struct ocfs2_lock_res
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BUG_ON(!(lockres->l_flags & OCFS2_LOCK_BUSY));
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BUG_ON(!(lockres->l_flags & OCFS2_LOCK_ATTACHED));
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BUG_ON(!(lockres->l_flags & OCFS2_LOCK_BLOCKED));
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BUG_ON(lockres->l_blocking <= LKM_NLMODE);
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BUG_ON(lockres->l_blocking <= DLM_LOCK_NL);
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lockres->l_level = lockres->l_requested;
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if (lockres->l_level <=
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ocfs2_highest_compat_lock_level(lockres->l_blocking)) {
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lockres->l_blocking = LKM_NLMODE;
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lockres->l_blocking = DLM_LOCK_NL;
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lockres_clear_flags(lockres, OCFS2_LOCK_BLOCKED);
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}
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lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
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@ -713,7 +711,7 @@ static inline void ocfs2_generic_handle_convert_action(struct ocfs2_lock_res *lo
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* information is already up to data. Convert from NL to
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* *anything* however should mark ourselves as needing an
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* update */
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if (lockres->l_level == LKM_NLMODE &&
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if (lockres->l_level == DLM_LOCK_NL &&
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lockres->l_ops->flags & LOCK_TYPE_REQUIRES_REFRESH)
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lockres_or_flags(lockres, OCFS2_LOCK_NEEDS_REFRESH);
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@ -730,7 +728,7 @@ static inline void ocfs2_generic_handle_attach_action(struct ocfs2_lock_res *loc
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BUG_ON((!(lockres->l_flags & OCFS2_LOCK_BUSY)));
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BUG_ON(lockres->l_flags & OCFS2_LOCK_ATTACHED);
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if (lockres->l_requested > LKM_NLMODE &&
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if (lockres->l_requested > DLM_LOCK_NL &&
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!(lockres->l_flags & OCFS2_LOCK_LOCAL) &&
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lockres->l_ops->flags & LOCK_TYPE_REQUIRES_REFRESH)
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lockres_or_flags(lockres, OCFS2_LOCK_NEEDS_REFRESH);
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@ -775,7 +773,7 @@ static void ocfs2_blocking_ast(void *opaque, int level)
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int needs_downconvert;
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unsigned long flags;
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BUG_ON(level <= LKM_NLMODE);
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BUG_ON(level <= DLM_LOCK_NL);
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mlog(0, "BAST fired for lockres %s, blocking %d, level %d type %s\n",
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lockres->l_name, level, lockres->l_level,
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@ -866,7 +864,7 @@ static inline void ocfs2_recover_from_dlm_error(struct ocfs2_lock_res *lockres,
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static int ocfs2_lock_create(struct ocfs2_super *osb,
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struct ocfs2_lock_res *lockres,
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int level,
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int dlm_flags)
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u32 dlm_flags)
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{
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int ret = 0;
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enum dlm_status status = DLM_NORMAL;
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@ -874,7 +872,7 @@ static int ocfs2_lock_create(struct ocfs2_super *osb,
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mlog_entry_void();
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mlog(0, "lock %s, level = %d, flags = %d\n", lockres->l_name, level,
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mlog(0, "lock %s, level = %d, flags = %u\n", lockres->l_name, level,
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dlm_flags);
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spin_lock_irqsave(&lockres->l_lock, flags);
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@ -1016,7 +1014,7 @@ static int ocfs2_wait_for_mask_interruptible(struct ocfs2_mask_waiter *mw,
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static int ocfs2_cluster_lock(struct ocfs2_super *osb,
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struct ocfs2_lock_res *lockres,
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int level,
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int lkm_flags,
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u32 lkm_flags,
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int arg_flags)
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{
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struct ocfs2_mask_waiter mw;
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@ -1030,7 +1028,7 @@ static int ocfs2_cluster_lock(struct ocfs2_super *osb,
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ocfs2_init_mask_waiter(&mw);
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if (lockres->l_ops->flags & LOCK_TYPE_USES_LVB)
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lkm_flags |= LKM_VALBLK;
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lkm_flags |= DLM_LKF_VALBLK;
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again:
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wait = 0;
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@ -1074,18 +1072,18 @@ again:
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if (!(lockres->l_flags & OCFS2_LOCK_ATTACHED)) {
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lockres->l_action = OCFS2_AST_ATTACH;
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lkm_flags &= ~LKM_CONVERT;
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lkm_flags &= ~DLM_LKF_CONVERT;
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} else {
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lockres->l_action = OCFS2_AST_CONVERT;
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lkm_flags |= LKM_CONVERT;
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lkm_flags |= DLM_LKF_CONVERT;
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}
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lockres->l_requested = level;
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lockres_or_flags(lockres, OCFS2_LOCK_BUSY);
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spin_unlock_irqrestore(&lockres->l_lock, flags);
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BUG_ON(level == LKM_IVMODE);
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BUG_ON(level == LKM_NLMODE);
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BUG_ON(level == DLM_LOCK_IV);
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BUG_ON(level == DLM_LOCK_NL);
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mlog(0, "lock %s, convert from %d to level = %d\n",
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lockres->l_name, lockres->l_level, level);
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@ -1099,7 +1097,7 @@ again:
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OCFS2_LOCK_ID_MAX_LEN - 1,
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lockres);
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if (status != DLM_NORMAL) {
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if ((lkm_flags & LKM_NOQUEUE) &&
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if ((lkm_flags & DLM_LKF_NOQUEUE) &&
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(status == DLM_NOTQUEUED))
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ret = -EAGAIN;
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else {
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@ -1175,9 +1173,9 @@ static int ocfs2_create_new_lock(struct ocfs2_super *osb,
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int ex,
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int local)
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{
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int level = ex ? LKM_EXMODE : LKM_PRMODE;
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int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
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unsigned long flags;
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int lkm_flags = local ? LKM_LOCAL : 0;
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u32 lkm_flags = local ? DLM_LKF_LOCAL : 0;
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spin_lock_irqsave(&lockres->l_lock, flags);
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BUG_ON(lockres->l_flags & OCFS2_LOCK_ATTACHED);
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@ -1220,7 +1218,7 @@ int ocfs2_create_new_inode_locks(struct inode *inode)
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}
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/*
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* We don't want to use LKM_LOCAL on a meta data lock as they
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* We don't want to use DLM_LKF_LOCAL on a meta data lock as they
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* don't use a generation in their lock names.
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*/
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ret = ocfs2_create_new_lock(osb, &OCFS2_I(inode)->ip_inode_lockres, 1, 0);
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@ -1259,7 +1257,7 @@ int ocfs2_rw_lock(struct inode *inode, int write)
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lockres = &OCFS2_I(inode)->ip_rw_lockres;
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level = write ? LKM_EXMODE : LKM_PRMODE;
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level = write ? DLM_LOCK_EX : DLM_LOCK_PR;
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status = ocfs2_cluster_lock(OCFS2_SB(inode->i_sb), lockres, level, 0,
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0);
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@ -1272,7 +1270,7 @@ int ocfs2_rw_lock(struct inode *inode, int write)
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void ocfs2_rw_unlock(struct inode *inode, int write)
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{
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int level = write ? LKM_EXMODE : LKM_PRMODE;
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int level = write ? DLM_LOCK_EX : DLM_LOCK_PR;
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struct ocfs2_lock_res *lockres = &OCFS2_I(inode)->ip_rw_lockres;
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struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
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@ -1310,7 +1308,7 @@ int ocfs2_open_lock(struct inode *inode)
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lockres = &OCFS2_I(inode)->ip_open_lockres;
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status = ocfs2_cluster_lock(OCFS2_SB(inode->i_sb), lockres,
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LKM_PRMODE, 0, 0);
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DLM_LOCK_PR, 0, 0);
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if (status < 0)
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mlog_errno(status);
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@ -1338,16 +1336,16 @@ int ocfs2_try_open_lock(struct inode *inode, int write)
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lockres = &OCFS2_I(inode)->ip_open_lockres;
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level = write ? LKM_EXMODE : LKM_PRMODE;
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level = write ? DLM_LOCK_EX : DLM_LOCK_PR;
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/*
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* The file system may already holding a PRMODE/EXMODE open lock.
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* Since we pass LKM_NOQUEUE, the request won't block waiting on
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* Since we pass DLM_LKF_NOQUEUE, the request won't block waiting on
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* other nodes and the -EAGAIN will indicate to the caller that
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* this inode is still in use.
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*/
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status = ocfs2_cluster_lock(OCFS2_SB(inode->i_sb), lockres,
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level, LKM_NOQUEUE, 0);
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level, DLM_LKF_NOQUEUE, 0);
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out:
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mlog_exit(status);
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@ -1372,10 +1370,10 @@ void ocfs2_open_unlock(struct inode *inode)
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if(lockres->l_ro_holders)
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ocfs2_cluster_unlock(OCFS2_SB(inode->i_sb), lockres,
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LKM_PRMODE);
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DLM_LOCK_PR);
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if(lockres->l_ex_holders)
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ocfs2_cluster_unlock(OCFS2_SB(inode->i_sb), lockres,
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LKM_EXMODE);
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DLM_LOCK_EX);
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out:
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mlog_exit_void();
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@ -1462,7 +1460,7 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock)
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ocfs2_init_mask_waiter(&mw);
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if ((lockres->l_flags & OCFS2_LOCK_BUSY) ||
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(lockres->l_level > LKM_NLMODE)) {
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(lockres->l_level > DLM_LOCK_NL)) {
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mlog(ML_ERROR,
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"File lock \"%s\" has busy or locked state: flags: 0x%lx, "
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"level: %u\n", lockres->l_name, lockres->l_flags,
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@ -1570,7 +1568,7 @@ void ocfs2_file_unlock(struct file *file)
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* Fake a blocking ast for the downconvert code.
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*/
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lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED);
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lockres->l_blocking = LKM_EXMODE;
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lockres->l_blocking = DLM_LOCK_EX;
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ocfs2_prepare_downconvert(lockres, LKM_NLMODE);
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lockres_add_mask_waiter(lockres, &mw, OCFS2_LOCK_BUSY, 0);
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@ -1599,11 +1597,11 @@ static void ocfs2_downconvert_on_unlock(struct ocfs2_super *osb,
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* condition. */
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if (lockres->l_flags & OCFS2_LOCK_BLOCKED) {
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switch(lockres->l_blocking) {
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case LKM_EXMODE:
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case DLM_LOCK_EX:
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if (!lockres->l_ex_holders && !lockres->l_ro_holders)
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kick = 1;
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break;
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case LKM_PRMODE:
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case DLM_LOCK_PR:
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if (!lockres->l_ex_holders)
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kick = 1;
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break;
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@ -1921,7 +1919,8 @@ int ocfs2_inode_lock_full(struct inode *inode,
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int ex,
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int arg_flags)
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{
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int status, level, dlm_flags, acquired;
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int status, level, acquired;
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u32 dlm_flags;
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struct ocfs2_lock_res *lockres = NULL;
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struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
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struct buffer_head *local_bh = NULL;
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@ -1951,10 +1950,10 @@ int ocfs2_inode_lock_full(struct inode *inode,
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ocfs2_wait_for_recovery(osb);
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lockres = &OCFS2_I(inode)->ip_inode_lockres;
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level = ex ? LKM_EXMODE : LKM_PRMODE;
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level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
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dlm_flags = 0;
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if (arg_flags & OCFS2_META_LOCK_NOQUEUE)
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dlm_flags |= LKM_NOQUEUE;
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dlm_flags |= DLM_LKF_NOQUEUE;
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status = ocfs2_cluster_lock(osb, lockres, level, dlm_flags, arg_flags);
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if (status < 0) {
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@ -2105,7 +2104,7 @@ int ocfs2_inode_lock_atime(struct inode *inode,
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void ocfs2_inode_unlock(struct inode *inode,
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int ex)
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{
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int level = ex ? LKM_EXMODE : LKM_PRMODE;
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int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
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struct ocfs2_lock_res *lockres = &OCFS2_I(inode)->ip_inode_lockres;
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struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
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@ -2126,7 +2125,7 @@ int ocfs2_super_lock(struct ocfs2_super *osb,
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int ex)
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{
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int status = 0;
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int level = ex ? LKM_EXMODE : LKM_PRMODE;
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int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
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struct ocfs2_lock_res *lockres = &osb->osb_super_lockres;
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mlog_entry_void();
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@ -2168,7 +2167,7 @@ bail:
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void ocfs2_super_unlock(struct ocfs2_super *osb,
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int ex)
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{
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int level = ex ? LKM_EXMODE : LKM_PRMODE;
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int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
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struct ocfs2_lock_res *lockres = &osb->osb_super_lockres;
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if (!ocfs2_mount_local(osb))
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@ -2186,7 +2185,7 @@ int ocfs2_rename_lock(struct ocfs2_super *osb)
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if (ocfs2_mount_local(osb))
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return 0;
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status = ocfs2_cluster_lock(osb, lockres, LKM_EXMODE, 0, 0);
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status = ocfs2_cluster_lock(osb, lockres, DLM_LOCK_EX, 0, 0);
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if (status < 0)
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mlog_errno(status);
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@ -2198,13 +2197,13 @@ void ocfs2_rename_unlock(struct ocfs2_super *osb)
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struct ocfs2_lock_res *lockres = &osb->osb_rename_lockres;
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if (!ocfs2_mount_local(osb))
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ocfs2_cluster_unlock(osb, lockres, LKM_EXMODE);
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ocfs2_cluster_unlock(osb, lockres, DLM_LOCK_EX);
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}
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int ocfs2_dentry_lock(struct dentry *dentry, int ex)
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{
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int ret;
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int level = ex ? LKM_EXMODE : LKM_PRMODE;
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int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
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struct ocfs2_dentry_lock *dl = dentry->d_fsdata;
|
||||
struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
|
||||
|
||||
|
|
@ -2225,7 +2224,7 @@ int ocfs2_dentry_lock(struct dentry *dentry, int ex)
|
|||
|
||||
void ocfs2_dentry_unlock(struct dentry *dentry, int ex)
|
||||
{
|
||||
int level = ex ? LKM_EXMODE : LKM_PRMODE;
|
||||
int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
|
||||
struct ocfs2_dentry_lock *dl = dentry->d_fsdata;
|
||||
struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
|
||||
|
||||
|
|
@ -2614,7 +2613,7 @@ static void ocfs2_unlock_ast(void *opaque, enum dlm_status status)
|
|||
lockres->l_action = OCFS2_AST_INVALID;
|
||||
break;
|
||||
case OCFS2_UNLOCK_DROP_LOCK:
|
||||
lockres->l_level = LKM_IVMODE;
|
||||
lockres->l_level = DLM_LOCK_IV;
|
||||
break;
|
||||
default:
|
||||
BUG();
|
||||
|
|
@ -2635,14 +2634,14 @@ static int ocfs2_drop_lock(struct ocfs2_super *osb,
|
|||
{
|
||||
enum dlm_status status;
|
||||
unsigned long flags;
|
||||
int lkm_flags = 0;
|
||||
u32 lkm_flags = 0;
|
||||
|
||||
/* We didn't get anywhere near actually using this lockres. */
|
||||
if (!(lockres->l_flags & OCFS2_LOCK_INITIALIZED))
|
||||
goto out;
|
||||
|
||||
if (lockres->l_ops->flags & LOCK_TYPE_USES_LVB)
|
||||
lkm_flags |= LKM_VALBLK;
|
||||
lkm_flags |= DLM_LKF_VALBLK;
|
||||
|
||||
spin_lock_irqsave(&lockres->l_lock, flags);
|
||||
|
||||
|
|
@ -2668,7 +2667,7 @@ static int ocfs2_drop_lock(struct ocfs2_super *osb,
|
|||
|
||||
if (lockres->l_ops->flags & LOCK_TYPE_USES_LVB) {
|
||||
if (lockres->l_flags & OCFS2_LOCK_ATTACHED &&
|
||||
lockres->l_level == LKM_EXMODE &&
|
||||
lockres->l_level == DLM_LOCK_EX &&
|
||||
!(lockres->l_flags & OCFS2_LOCK_NEEDS_REFRESH))
|
||||
lockres->l_ops->set_lvb(lockres);
|
||||
}
|
||||
|
|
@ -2801,10 +2800,10 @@ static void ocfs2_prepare_downconvert(struct ocfs2_lock_res *lockres,
|
|||
{
|
||||
assert_spin_locked(&lockres->l_lock);
|
||||
|
||||
BUG_ON(lockres->l_blocking <= LKM_NLMODE);
|
||||
BUG_ON(lockres->l_blocking <= DLM_LOCK_NL);
|
||||
|
||||
if (lockres->l_level <= new_level) {
|
||||
mlog(ML_ERROR, "lockres->l_level (%u) <= new_level (%u)\n",
|
||||
mlog(ML_ERROR, "lockres->l_level (%d) <= new_level (%d)\n",
|
||||
lockres->l_level, new_level);
|
||||
BUG();
|
||||
}
|
||||
|
|
@ -2822,13 +2821,14 @@ static int ocfs2_downconvert_lock(struct ocfs2_super *osb,
|
|||
int new_level,
|
||||
int lvb)
|
||||
{
|
||||
int ret, dlm_flags = LKM_CONVERT;
|
||||
int ret;
|
||||
u32 dlm_flags = DLM_LKF_CONVERT;
|
||||
enum dlm_status status;
|
||||
|
||||
mlog_entry_void();
|
||||
|
||||
if (lvb)
|
||||
dlm_flags |= LKM_VALBLK;
|
||||
dlm_flags |= DLM_LKF_VALBLK;
|
||||
|
||||
status = ocfs2_dlm_lock(osb->dlm,
|
||||
new_level,
|
||||
|
|
@ -2894,7 +2894,7 @@ static int ocfs2_cancel_convert(struct ocfs2_super *osb,
|
|||
ret = 0;
|
||||
status = ocfs2_dlm_unlock(osb->dlm,
|
||||
&lockres->l_lksb,
|
||||
LKM_CANCEL,
|
||||
DLM_LKF_CANCEL,
|
||||
lockres);
|
||||
if (status != DLM_NORMAL) {
|
||||
ocfs2_log_dlm_error("ocfs2_dlm_unlock", status, lockres);
|
||||
|
|
@ -2939,13 +2939,13 @@ recheck:
|
|||
|
||||
/* if we're blocking an exclusive and we have *any* holders,
|
||||
* then requeue. */
|
||||
if ((lockres->l_blocking == LKM_EXMODE)
|
||||
if ((lockres->l_blocking == DLM_LOCK_EX)
|
||||
&& (lockres->l_ex_holders || lockres->l_ro_holders))
|
||||
goto leave_requeue;
|
||||
|
||||
/* If it's a PR we're blocking, then only
|
||||
* requeue if we've got any EX holders */
|
||||
if (lockres->l_blocking == LKM_PRMODE &&
|
||||
if (lockres->l_blocking == DLM_LOCK_PR &&
|
||||
lockres->l_ex_holders)
|
||||
goto leave_requeue;
|
||||
|
||||
|
|
@ -2992,7 +2992,7 @@ downconvert:
|
|||
ctl->requeue = 0;
|
||||
|
||||
if (lockres->l_ops->flags & LOCK_TYPE_USES_LVB) {
|
||||
if (lockres->l_level == LKM_EXMODE)
|
||||
if (lockres->l_level == DLM_LOCK_EX)
|
||||
set_lvb = 1;
|
||||
|
||||
/*
|
||||
|
|
@ -3046,7 +3046,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres,
|
|||
(unsigned long long)OCFS2_I(inode)->ip_blkno);
|
||||
}
|
||||
sync_mapping_buffers(mapping);
|
||||
if (blocking == LKM_EXMODE) {
|
||||
if (blocking == DLM_LOCK_EX) {
|
||||
truncate_inode_pages(mapping, 0);
|
||||
} else {
|
||||
/* We only need to wait on the I/O if we're not also
|
||||
|
|
@ -3067,8 +3067,8 @@ static int ocfs2_check_meta_downconvert(struct ocfs2_lock_res *lockres,
|
|||
struct inode *inode = ocfs2_lock_res_inode(lockres);
|
||||
int checkpointed = ocfs2_inode_fully_checkpointed(inode);
|
||||
|
||||
BUG_ON(new_level != LKM_NLMODE && new_level != LKM_PRMODE);
|
||||
BUG_ON(lockres->l_level != LKM_EXMODE && !checkpointed);
|
||||
BUG_ON(new_level != DLM_LOCK_NL && new_level != DLM_LOCK_PR);
|
||||
BUG_ON(lockres->l_level != DLM_LOCK_EX && !checkpointed);
|
||||
|
||||
if (checkpointed)
|
||||
return 1;
|
||||
|
|
@ -3132,7 +3132,7 @@ static int ocfs2_dentry_convert_worker(struct ocfs2_lock_res *lockres,
|
|||
* valid. The downconvert code will retain a PR for this node,
|
||||
* so there's no further work to do.
|
||||
*/
|
||||
if (blocking == LKM_PRMODE)
|
||||
if (blocking == DLM_LOCK_PR)
|
||||
return UNBLOCK_CONTINUE;
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -18,15 +18,65 @@
|
|||
* General Public License for more details.
|
||||
*/
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/list.h>
|
||||
|
||||
#include "dlm/dlmapi.h"
|
||||
|
||||
#include "stackglue.h"
|
||||
|
||||
static struct ocfs2_locking_protocol *lproto;
|
||||
|
||||
/* These should be identical */
|
||||
#if (DLM_LOCK_IV != LKM_IVMODE)
|
||||
# error Lock modes do not match
|
||||
#endif
|
||||
#if (DLM_LOCK_NL != LKM_NLMODE)
|
||||
# error Lock modes do not match
|
||||
#endif
|
||||
#if (DLM_LOCK_CR != LKM_CRMODE)
|
||||
# error Lock modes do not match
|
||||
#endif
|
||||
#if (DLM_LOCK_CW != LKM_CWMODE)
|
||||
# error Lock modes do not match
|
||||
#endif
|
||||
#if (DLM_LOCK_PR != LKM_PRMODE)
|
||||
# error Lock modes do not match
|
||||
#endif
|
||||
#if (DLM_LOCK_PW != LKM_PWMODE)
|
||||
# error Lock modes do not match
|
||||
#endif
|
||||
#if (DLM_LOCK_EX != LKM_EXMODE)
|
||||
# error Lock modes do not match
|
||||
#endif
|
||||
static inline int mode_to_o2dlm(int mode)
|
||||
{
|
||||
BUG_ON(mode > LKM_MAXMODE);
|
||||
|
||||
return mode;
|
||||
}
|
||||
|
||||
#define map_flag(_generic, _o2dlm) \
|
||||
if (flags & (_generic)) { \
|
||||
flags &= ~(_generic); \
|
||||
o2dlm_flags |= (_o2dlm); \
|
||||
}
|
||||
static int flags_to_o2dlm(u32 flags)
|
||||
{
|
||||
int o2dlm_flags = 0;
|
||||
|
||||
map_flag(DLM_LKF_NOQUEUE, LKM_NOQUEUE);
|
||||
map_flag(DLM_LKF_CANCEL, LKM_CANCEL);
|
||||
map_flag(DLM_LKF_CONVERT, LKM_CONVERT);
|
||||
map_flag(DLM_LKF_VALBLK, LKM_VALBLK);
|
||||
map_flag(DLM_LKF_IVVALBLK, LKM_INVVALBLK);
|
||||
map_flag(DLM_LKF_ORPHAN, LKM_ORPHAN);
|
||||
map_flag(DLM_LKF_FORCEUNLOCK, LKM_FORCE);
|
||||
map_flag(DLM_LKF_TIMEOUT, LKM_TIMEOUT);
|
||||
map_flag(DLM_LKF_LOCAL, LKM_LOCAL);
|
||||
|
||||
/* map_flag() should have cleared every flag passed in */
|
||||
BUG_ON(flags != 0);
|
||||
|
||||
return o2dlm_flags;
|
||||
}
|
||||
#undef map_flag
|
||||
|
||||
enum dlm_status ocfs2_dlm_lock(struct dlm_ctxt *dlm,
|
||||
int mode,
|
||||
struct dlm_lockstatus *lksb,
|
||||
|
|
@ -35,8 +85,12 @@ enum dlm_status ocfs2_dlm_lock(struct dlm_ctxt *dlm,
|
|||
unsigned int namelen,
|
||||
void *astarg)
|
||||
{
|
||||
int o2dlm_mode = mode_to_o2dlm(mode);
|
||||
int o2dlm_flags = flags_to_o2dlm(flags);
|
||||
|
||||
BUG_ON(lproto == NULL);
|
||||
return dlmlock(dlm, mode, lksb, flags, name, namelen,
|
||||
|
||||
return dlmlock(dlm, o2dlm_mode, lksb, o2dlm_flags, name, namelen,
|
||||
lproto->lp_lock_ast, astarg,
|
||||
lproto->lp_blocking_ast);
|
||||
}
|
||||
|
|
@ -46,9 +100,12 @@ enum dlm_status ocfs2_dlm_unlock(struct dlm_ctxt *dlm,
|
|||
u32 flags,
|
||||
void *astarg)
|
||||
{
|
||||
int o2dlm_flags = flags_to_o2dlm(flags);
|
||||
|
||||
BUG_ON(lproto == NULL);
|
||||
|
||||
return dlmunlock(dlm, lksb, flags, lproto->lp_unlock_ast, astarg);
|
||||
return dlmunlock(dlm, lksb, o2dlm_flags,
|
||||
lproto->lp_unlock_ast, astarg);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -21,6 +21,19 @@
|
|||
#ifndef STACKGLUE_H
|
||||
#define STACKGLUE_H
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/list.h>
|
||||
#include <linux/dlmconstants.h>
|
||||
|
||||
/*
|
||||
* dlmconstants.h does not have a LOCAL flag. We hope to remove it
|
||||
* some day, but right now we need it. Let's fake it. This value is larger
|
||||
* than any flag in dlmconstants.h.
|
||||
*/
|
||||
#define DLM_LKF_LOCAL 0x00100000
|
||||
|
||||
#include "dlm/dlmapi.h"
|
||||
|
||||
struct ocfs2_locking_protocol {
|
||||
void (*lp_lock_ast)(void *astarg);
|
||||
void (*lp_blocking_ast)(void *astarg, int level);
|
||||
|
|
|
|||
Загрузка…
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