Merge master.kernel.org:/pub/scm/linux/kernel/git/mingo/mutex-2.6

13 files changed, 39 insertions, 43 deletions

diff --git a/fs/xfs/linux-2.6/mutex.h b/fs/xfs/linux-2.6/mutex.h
index ce773d89a923..d3369b6ca168 100644
--- a/fs/xfs/linux-2.6/mutex.h
+++ b/fs/xfs/linux-2.6/mutex.h
@@ -19,7 +19,7 @@
 #define __XFS_SUPPORT_MUTEX_H__
 
 #include <linux/spinlock.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 /*
  * Map the mutex'es from IRIX to Linux semaphores.
@@ -28,12 +28,8 @@
  * callers.
  */
 #define MUTEX_DEFAULT           0x0
-typedef struct semaphore        mutex_t;
 
-#define mutex_init(lock, type, name)            sema_init(lock, 1)
-#define mutex_destroy(lock)                     sema_init(lock, -99)
-#define mutex_lock(lock, num)                   down(lock)
-#define mutex_trylock(lock)                     (down_trylock(lock) ? 0 : 1)
-#define mutex_unlock(lock)                      up(lock)
+typedef struct mutex            mutex_t;
+//#define mutex_destroy(lock)                   do{}while(0)
 
 #endif /* __XFS_SUPPORT_MUTEX_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 14215a7db59f..41c478bb1ffc 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -203,7 +203,7 @@ validate_fields(
                 ip->i_nlink = va.va_nlink;
                 ip->i_blocks = va.va_nblocks;
 
-                /* we're under i_sem so i_size can't change under us */
+                /* we're under i_mutex so i_size can't change under us */
                 if (i_size_read(ip) != va.va_size)
                         i_size_write(ip, va.va_size);
         }
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 279e9bc92aba..5675117ef227 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -254,7 +254,7 @@ xfs_read(
         }
 
         if (unlikely(ioflags & IO_ISDIRECT))
-                down(&inode->i_sem);
+                mutex_lock(&inode->i_mutex);
         xfs_ilock(ip, XFS_IOLOCK_SHARED);
 
         if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ) &&
@@ -286,7 +286,7 @@ xfs_read(
 
 unlock_isem:
         if (unlikely(ioflags & IO_ISDIRECT))
-                up(&inode->i_sem);
+                mutex_unlock(&inode->i_mutex);
         return ret;
 }
 
@@ -655,7 +655,7 @@ relock:
                 iolock = XFS_IOLOCK_EXCL;
                 locktype = VRWLOCK_WRITE;
 
-                down(&inode->i_sem);
+                mutex_lock(&inode->i_mutex);
         } else {
                 iolock = XFS_IOLOCK_SHARED;
                 locktype = VRWLOCK_WRITE_DIRECT;
@@ -686,7 +686,7 @@ start:
                 int             dmflags = FILP_DELAY_FLAG(file);
 
                 if (need_isem)
-                        dmflags |= DM_FLAGS_ISEM;
+                        dmflags |= DM_FLAGS_IMUX;
 
                 xfs_iunlock(xip, XFS_ILOCK_EXCL);
                 error = XFS_SEND_DATA(xip->i_mount, DM_EVENT_WRITE, vp,
@@ -772,7 +772,7 @@ retry:
                 if (need_isem) {
                         /* demote the lock now the cached pages are gone */
                         XFS_ILOCK_DEMOTE(mp, io, XFS_IOLOCK_EXCL);
-                        up(&inode->i_sem);
+                        mutex_unlock(&inode->i_mutex);
 
                         iolock = XFS_IOLOCK_SHARED;
                         locktype = VRWLOCK_WRITE_DIRECT;
@@ -817,14 +817,14 @@ retry:
 
                 xfs_rwunlock(bdp, locktype);
                 if (need_isem)
-                        up(&inode->i_sem);
+                        mutex_unlock(&inode->i_mutex);
                 error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, vp,
                                 DM_RIGHT_NULL, vp, DM_RIGHT_NULL, NULL, NULL,
                                 0, 0, 0); /* Delay flag intentionally  unused */
                 if (error)
                         goto out_nounlocks;
                 if (need_isem)
-                        down(&inode->i_sem);
+                        mutex_lock(&inode->i_mutex);
                 xfs_rwlock(bdp, locktype);
                 pos = xip->i_d.di_size;
                 ret = 0;
@@ -926,7 +926,7 @@ retry:
         
                 xfs_rwunlock(bdp, locktype);
                 if (need_isem)
-                        up(&inode->i_sem);
+                        mutex_unlock(&inode->i_mutex);
 
                 error = sync_page_range(inode, mapping, pos, ret);
                 if (!error)
@@ -938,7 +938,7 @@ retry:
         xfs_rwunlock(bdp, locktype);
  out_unlock_isem:
         if (need_isem)
-                up(&inode->i_sem);
+                mutex_unlock(&inode->i_mutex);
  out_nounlocks:
         return -error;
 }
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index 00b5043dfa5a..772ac48329ea 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -104,7 +104,7 @@ xfs_qm_dqinit(
          */
         if (brandnewdquot) {
                 dqp->dq_flnext = dqp->dq_flprev = dqp;
-                mutex_init(&dqp->q_qlock,  MUTEX_DEFAULT, "xdq");
+                mutex_init(&dqp->q_qlock);
                 initnsema(&dqp->q_flock, 1, "fdq");
                 sv_init(&dqp->q_pinwait, SV_DEFAULT, "pdq");
 
@@ -1382,7 +1382,7 @@ void
 xfs_dqlock(
         xfs_dquot_t *dqp)
 {
-        mutex_lock(&(dqp->q_qlock), PINOD);
+        mutex_lock(&(dqp->q_qlock));
 }
 
 void
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 5328a2937127..bb6991a7a617 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -167,7 +167,7 @@ xfs_Gqm_init(void)
         xqm->qm_dqfree_ratio = XFS_QM_DQFREE_RATIO;
         xqm->qm_nrefs = 0;
 #ifdef DEBUG
-        mutex_init(&qcheck_lock, MUTEX_DEFAULT, "qchk");
+        xfs_mutex_init(&qcheck_lock, MUTEX_DEFAULT, "qchk");
 #endif
         return xqm;
 }
@@ -1166,7 +1166,7 @@ xfs_qm_init_quotainfo(
         qinf->qi_dqreclaims = 0;
 
         /* mutex used to serialize quotaoffs */
-        mutex_init(&qinf->qi_quotaofflock, MUTEX_DEFAULT, "qoff");
+        mutex_init(&qinf->qi_quotaofflock);
 
         /* Precalc some constants */
         qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB);
@@ -1285,7 +1285,7 @@ xfs_qm_list_init(
         char            *str,
         int             n)
 {
-        mutex_init(&list->qh_lock, MUTEX_DEFAULT, str);
+        mutex_init(&list->qh_lock);
         list->qh_next = NULL;
         list->qh_version = 0;
         list->qh_nelems = 0;
@@ -2762,7 +2762,7 @@ STATIC void
 xfs_qm_freelist_init(xfs_frlist_t *ql)
 {
         ql->qh_next = ql->qh_prev = (xfs_dquot_t *) ql;
-        mutex_init(&ql->qh_lock, MUTEX_DEFAULT, "dqf");
+        mutex_init(&ql->qh_lock);
         ql->qh_version = 0;
         ql->qh_nelems = 0;
 }
@@ -2772,7 +2772,7 @@ xfs_qm_freelist_destroy(xfs_frlist_t *ql)
 {
         xfs_dquot_t     *dqp, *nextdqp;
 
-        mutex_lock(&ql->qh_lock, PINOD);
+        mutex_lock(&ql->qh_lock);
         for (dqp = ql->qh_next;
              dqp != (xfs_dquot_t *)ql; ) {
                 xfs_dqlock(dqp);
diff --git a/fs/xfs/quota/xfs_qm.h b/fs/xfs/quota/xfs_qm.h
index 12da259f2fcb..4568deb6da86 100644
--- a/fs/xfs/quota/xfs_qm.h
+++ b/fs/xfs/quota/xfs_qm.h
@@ -165,7 +165,7 @@ typedef struct xfs_dquot_acct {
 #define XFS_QM_IWARNLIMIT       5
 #define XFS_QM_RTBWARNLIMIT     5
 
-#define XFS_QM_LOCK(xqm)        (mutex_lock(&xqm##_lock, PINOD))
+#define XFS_QM_LOCK(xqm)        (mutex_lock(&xqm##_lock))
 #define XFS_QM_UNLOCK(xqm)      (mutex_unlock(&xqm##_lock))
 #define XFS_QM_HOLD(xqm)        ((xqm)->qm_nrefs++)
 #define XFS_QM_RELE(xqm)        ((xqm)->qm_nrefs--)
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index d9d2993de435..90402a1c3983 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -363,7 +363,7 @@ xfs_qm_init(void)
                 KERN_INFO "SGI XFS Quota Management subsystem\n";
 
         printk(message);
-        mutex_init(&xfs_Gqm_lock, MUTEX_DEFAULT, "xfs_qmlock");
+        mutex_init(&xfs_Gqm_lock);
         vfs_bhv_set_custom(&xfs_qmops, &xfs_qmcore_xfs);
         xfs_qm_init_procfs();
 }
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 24690e1af659..86a1d09f48d5 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -233,7 +233,7 @@ xfs_qm_scall_quotaoff(
          */
         ASSERT(mp->m_quotainfo);
         if (mp->m_quotainfo)
-                mutex_lock(&(XFS_QI_QOFFLOCK(mp)), PINOD);
+                mutex_lock(&(XFS_QI_QOFFLOCK(mp)));
 
         ASSERT(mp->m_quotainfo);
 
@@ -508,7 +508,7 @@ xfs_qm_scall_quotaon(
         /*
          * Switch on quota enforcement in core.
          */
-        mutex_lock(&(XFS_QI_QOFFLOCK(mp)), PINOD);
+        mutex_lock(&(XFS_QI_QOFFLOCK(mp)));
         mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD);
         mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
 
@@ -617,7 +617,7 @@ xfs_qm_scall_setqlim(
          * a quotaoff from happening). (XXXThis doesn't currently happen
          * because we take the vfslock before calling xfs_qm_sysent).
          */
-        mutex_lock(&(XFS_QI_QOFFLOCK(mp)), PINOD);
+        mutex_lock(&(XFS_QI_QOFFLOCK(mp)));
 
         /*
          * Get the dquot (locked), and join it to the transaction.
@@ -1426,7 +1426,7 @@ xfs_qm_internalqcheck(
         xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC);
         XFS_bflush(mp->m_ddev_targp);
 
-        mutex_lock(&qcheck_lock, PINOD);
+        mutex_lock(&qcheck_lock);
         /* There should be absolutely no quota activity while this
            is going on. */
         qmtest_udqtab = kmem_zalloc(qmtest_hashmask *
diff --git a/fs/xfs/quota/xfs_quota_priv.h b/fs/xfs/quota/xfs_quota_priv.h
index 7a9f3beb818c..b7ddd04aae32 100644
--- a/fs/xfs/quota/xfs_quota_priv.h
+++ b/fs/xfs/quota/xfs_quota_priv.h
@@ -51,7 +51,7 @@
 #define XFS_QI_MPLNEXT(mp)      ((mp)->m_quotainfo->qi_dqlist.qh_next)
 #define XFS_QI_MPLNDQUOTS(mp)   ((mp)->m_quotainfo->qi_dqlist.qh_nelems)
 
-#define XQMLCK(h)                       (mutex_lock(&((h)->qh_lock), PINOD))
+#define XQMLCK(h)                       (mutex_lock(&((h)->qh_lock)))
 #define XQMUNLCK(h)                     (mutex_unlock(&((h)->qh_lock)))
 #ifdef DEBUG
 struct xfs_dqhash;
diff --git a/fs/xfs/support/uuid.c b/fs/xfs/support/uuid.c
index 70ce40914c8a..69ec4f540c3a 100644
--- a/fs/xfs/support/uuid.c
+++ b/fs/xfs/support/uuid.c
@@ -24,7 +24,7 @@ static uuid_t	*uuid_table;
 void
 uuid_init(void)
 {
-        mutex_init(&uuid_monitor, MUTEX_DEFAULT, "uuid_monitor");
+        mutex_init(&uuid_monitor);
 }
 
 /*
@@ -94,7 +94,7 @@ uuid_table_insert(uuid_t *uuid)
 {
         int     i, hole;
 
-        mutex_lock(&uuid_monitor, PVFS);
+        mutex_lock(&uuid_monitor);
         for (i = 0, hole = -1; i < uuid_table_size; i++) {
                 if (uuid_is_nil(&uuid_table[i])) {
                         hole = i;
@@ -122,7 +122,7 @@ uuid_table_remove(uuid_t *uuid)
 {
         int     i;
 
-        mutex_lock(&uuid_monitor, PVFS);
+        mutex_lock(&uuid_monitor);
         for (i = 0; i < uuid_table_size; i++) {
                 if (uuid_is_nil(&uuid_table[i]))
                         continue;
diff --git a/fs/xfs/xfs_dmapi.h b/fs/xfs/xfs_dmapi.h
index 864bf6955689..b4c7f2bc55a0 100644
--- a/fs/xfs/xfs_dmapi.h
+++ b/fs/xfs/xfs_dmapi.h
@@ -152,7 +152,7 @@ typedef enum {
 
 #define DM_FLAGS_NDELAY         0x001   /* return EAGAIN after dm_pending() */
 #define DM_FLAGS_UNWANTED       0x002   /* event not in fsys dm_eventset_t */
-#define DM_FLAGS_ISEM           0x004   /* thread holds i_sem */
+#define DM_FLAGS_IMUX           0x004   /* thread holds i_mutex */
 #define DM_FLAGS_IALLOCSEM_RD   0x010   /* thread holds i_alloc_sem rd */
 #define DM_FLAGS_IALLOCSEM_WR   0x020   /* thread holds i_alloc_sem wr */
 
@@ -161,21 +161,21 @@ typedef enum {
  */
 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0)
 #define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
-                              DM_FLAGS_ISEM : 0)
-#define DM_SEM_FLAG_WR  (DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_ISEM)
+                              DM_FLAGS_IMUX : 0)
+#define DM_SEM_FLAG_WR  (DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_IMUX)
 #endif
 
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)) && \
     (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,22))
 #define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
-                              DM_FLAGS_IALLOCSEM_RD : DM_FLAGS_ISEM)
-#define DM_SEM_FLAG_WR  (DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_ISEM)
+                              DM_FLAGS_IALLOCSEM_RD : DM_FLAGS_IMUX)
+#define DM_SEM_FLAG_WR  (DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_IMUX)
 #endif
 
 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,21)
 #define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
-                              0 : DM_FLAGS_ISEM)
-#define DM_SEM_FLAG_WR  (DM_FLAGS_ISEM)
+                              0 : DM_FLAGS_IMUX)
+#define DM_SEM_FLAG_WR  (DM_FLAGS_IMUX)
 #endif
 
 
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 541d5dd474be..303af86739bf 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -117,7 +117,7 @@ xfs_mount_init(void)
 
         AIL_LOCKINIT(&mp->m_ail_lock, "xfs_ail");
         spinlock_init(&mp->m_sb_lock, "xfs_sb");
-        mutex_init(&mp->m_ilock, MUTEX_DEFAULT, "xfs_ilock");
+        mutex_init(&mp->m_ilock);
         initnsema(&mp->m_growlock, 1, "xfs_grow");
         /*
          * Initialize the AIL.
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 08b2e0a5d807..3432fd5a3986 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -533,7 +533,7 @@ typedef struct xfs_mod_sb {
         int             msb_delta;      /* Change to make to specified field */
 } xfs_mod_sb_t;
 
-#define XFS_MOUNT_ILOCK(mp)     mutex_lock(&((mp)->m_ilock), PINOD)
+#define XFS_MOUNT_ILOCK(mp)     mutex_lock(&((mp)->m_ilock))
 #define XFS_MOUNT_IUNLOCK(mp)   mutex_unlock(&((mp)->m_ilock))
 #define XFS_SB_LOCK(mp)         mutex_spinlock(&(mp)->m_sb_lock)
 #define XFS_SB_UNLOCK(mp,s)     mutex_spinunlock(&(mp)->m_sb_lock,(s))