From: Jes Sorensen Date: Mon, 9 Jan 2006 23:59:21 +0000 (-0800) Subject: [PATCH] mutex subsystem, semaphore to mutex: XFS X-Git-Tag: v2.6.16-rc1~655^2~6 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=794ee1baee1c26be40410233e6c20bceb2b03c08;p=linux-2.6 [PATCH] mutex subsystem, semaphore to mutex: XFS This patch switches XFS over to use the new mutex code directly as opposed to the previous workaround patch I posted earlier that avoided the namespace clash by forcing it back to semaphores. This falls in the 'works for me' category. Signed-off-by: Jes Sorensen Signed-off-by: Ingo Molnar --- diff --git a/fs/xfs/linux-2.6/mutex.h b/fs/xfs/linux-2.6/mutex.h index ce773d89a9..d3369b6ca1 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 -#include +#include /* * 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/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c index 00b5043dfa..772ac48329 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 5328a29371..bb6991a7a6 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 12da259f2f..4568deb6da 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 d9d2993de4..90402a1c39 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 24690e1af6..86a1d09f48 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 7a9f3beb81..b7ddd04aae 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 70ce40914c..69ec4f540c 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_mount.c b/fs/xfs/xfs_mount.c index 541d5dd474..303af86739 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 08b2e0a5d8..3432fd5a39 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))