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authorChristoph Hellwig <hch@infradead.org>2011-12-06 16:58:14 -0500
committerBen Myers <bpm@sgi.com>2011-12-12 18:28:20 -0500
commit800b484ec0262946262ad20561a8081fd31f4a6f (patch)
tree41bc447ef77f21546e03d975017c11cb3d1a1a4d /fs
parenta7ef9bd79f488c643edfda7dedcbdb0a1b8e7552 (diff)
xfs: cleanup dquot locking helpers
Mark the trivial lock wrappers as inline, and make the naming consistent for all of them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/xfs/xfs_dquot.c31
-rw-r--r--fs/xfs/xfs_dquot.h25
-rw-r--r--fs/xfs/xfs_dquot_item.c2
-rw-r--r--fs/xfs/xfs_qm.c2
4 files changed, 25 insertions, 35 deletions
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 9aef727a48b2..13eef1f92d20 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -1257,40 +1257,17 @@ xfs_qm_dqflush(
1257 1257
1258} 1258}
1259 1259
1260int
1261xfs_qm_dqlock_nowait(
1262 xfs_dquot_t *dqp)
1263{
1264 return mutex_trylock(&dqp->q_qlock);
1265}
1266
1267void
1268xfs_dqlock(
1269 xfs_dquot_t *dqp)
1270{
1271 mutex_lock(&dqp->q_qlock);
1272}
1273
1274void 1260void
1275xfs_dqunlock( 1261xfs_dqunlock(
1276 xfs_dquot_t *dqp) 1262 xfs_dquot_t *dqp)
1277{ 1263{
1278 mutex_unlock(&(dqp->q_qlock)); 1264 xfs_dqunlock_nonotify(dqp);
1279 if (dqp->q_logitem.qli_dquot == dqp) { 1265 if (dqp->q_logitem.qli_dquot == dqp) {
1280 /* Once was dqp->q_mount, but might just have been cleared */
1281 xfs_trans_unlocked_item(dqp->q_logitem.qli_item.li_ailp, 1266 xfs_trans_unlocked_item(dqp->q_logitem.qli_item.li_ailp,
1282 (xfs_log_item_t*)&(dqp->q_logitem)); 1267 &dqp->q_logitem.qli_item);
1283 } 1268 }
1284} 1269}
1285 1270
1286
1287void
1288xfs_dqunlock_nonotify(
1289 xfs_dquot_t *dqp)
1290{
1291 mutex_unlock(&(dqp->q_qlock));
1292}
1293
1294/* 1271/*
1295 * Lock two xfs_dquot structures. 1272 * Lock two xfs_dquot structures.
1296 * 1273 *
@@ -1370,7 +1347,7 @@ xfs_qm_dqpurge(
1370 * Block on the flush lock after nudging dquot buffer, 1347 * Block on the flush lock after nudging dquot buffer,
1371 * if it is incore. 1348 * if it is incore.
1372 */ 1349 */
1373 xfs_qm_dqflock_pushbuf_wait(dqp); 1350 xfs_dqflock_pushbuf_wait(dqp);
1374 } 1351 }
1375 1352
1376 /* 1353 /*
@@ -1427,7 +1404,7 @@ xfs_qm_dqpurge(
1427 * wait on the flush lock. 1404 * wait on the flush lock.
1428 */ 1405 */
1429void 1406void
1430xfs_qm_dqflock_pushbuf_wait( 1407xfs_dqflock_pushbuf_wait(
1431 xfs_dquot_t *dqp) 1408 xfs_dquot_t *dqp)
1432{ 1409{
1433 xfs_mount_t *mp = dqp->q_mount; 1410 xfs_mount_t *mp = dqp->q_mount;
diff --git a/fs/xfs/xfs_dquot.h b/fs/xfs/xfs_dquot.h
index 34b7e945dbfa..0b5d2ae92028 100644
--- a/fs/xfs/xfs_dquot.h
+++ b/fs/xfs/xfs_dquot.h
@@ -102,6 +102,21 @@ static inline void xfs_dqfunlock(xfs_dquot_t *dqp)
102 complete(&dqp->q_flush); 102 complete(&dqp->q_flush);
103} 103}
104 104
105static inline int xfs_dqlock_nowait(struct xfs_dquot *dqp)
106{
107 return mutex_trylock(&dqp->q_qlock);
108}
109
110static inline void xfs_dqlock(struct xfs_dquot *dqp)
111{
112 mutex_lock(&dqp->q_qlock);
113}
114
115static inline void xfs_dqunlock_nonotify(struct xfs_dquot *dqp)
116{
117 mutex_unlock(&dqp->q_qlock);
118}
119
105#define XFS_DQ_IS_LOCKED(dqp) (mutex_is_locked(&((dqp)->q_qlock))) 120#define XFS_DQ_IS_LOCKED(dqp) (mutex_is_locked(&((dqp)->q_qlock)))
106#define XFS_DQ_IS_DIRTY(dqp) ((dqp)->dq_flags & XFS_DQ_DIRTY) 121#define XFS_DQ_IS_DIRTY(dqp) ((dqp)->dq_flags & XFS_DQ_DIRTY)
107#define XFS_QM_ISUDQ(dqp) ((dqp)->dq_flags & XFS_DQ_USER) 122#define XFS_QM_ISUDQ(dqp) ((dqp)->dq_flags & XFS_DQ_USER)
@@ -120,8 +135,6 @@ extern void xfs_qm_dqdestroy(xfs_dquot_t *);
120extern int xfs_qm_dqflush(xfs_dquot_t *, uint); 135extern int xfs_qm_dqflush(xfs_dquot_t *, uint);
121extern int xfs_qm_dqpurge(xfs_dquot_t *); 136extern int xfs_qm_dqpurge(xfs_dquot_t *);
122extern void xfs_qm_dqunpin_wait(xfs_dquot_t *); 137extern void xfs_qm_dqunpin_wait(xfs_dquot_t *);
123extern int xfs_qm_dqlock_nowait(xfs_dquot_t *);
124extern void xfs_qm_dqflock_pushbuf_wait(xfs_dquot_t *dqp);
125extern void xfs_qm_adjust_dqtimers(xfs_mount_t *, 138extern void xfs_qm_adjust_dqtimers(xfs_mount_t *,
126 xfs_disk_dquot_t *); 139 xfs_disk_dquot_t *);
127extern void xfs_qm_adjust_dqlimits(xfs_mount_t *, 140extern void xfs_qm_adjust_dqlimits(xfs_mount_t *,
@@ -129,9 +142,9 @@ extern void xfs_qm_adjust_dqlimits(xfs_mount_t *,
129extern int xfs_qm_dqget(xfs_mount_t *, xfs_inode_t *, 142extern int xfs_qm_dqget(xfs_mount_t *, xfs_inode_t *,
130 xfs_dqid_t, uint, uint, xfs_dquot_t **); 143 xfs_dqid_t, uint, uint, xfs_dquot_t **);
131extern void xfs_qm_dqput(xfs_dquot_t *); 144extern void xfs_qm_dqput(xfs_dquot_t *);
132extern void xfs_dqlock(xfs_dquot_t *); 145
133extern void xfs_dqlock2(xfs_dquot_t *, xfs_dquot_t *); 146extern void xfs_dqlock2(struct xfs_dquot *, struct xfs_dquot *);
134extern void xfs_dqunlock(xfs_dquot_t *); 147extern void xfs_dqunlock(struct xfs_dquot *);
135extern void xfs_dqunlock_nonotify(xfs_dquot_t *); 148extern void xfs_dqflock_pushbuf_wait(struct xfs_dquot *dqp);
136 149
137#endif /* __XFS_DQUOT_H__ */ 150#endif /* __XFS_DQUOT_H__ */
diff --git a/fs/xfs/xfs_dquot_item.c b/fs/xfs/xfs_dquot_item.c
index 3956e1bb7c07..34baeae45265 100644
--- a/fs/xfs/xfs_dquot_item.c
+++ b/fs/xfs/xfs_dquot_item.c
@@ -236,7 +236,7 @@ xfs_qm_dquot_logitem_trylock(
236 if (atomic_read(&dqp->q_pincount) > 0) 236 if (atomic_read(&dqp->q_pincount) > 0)
237 return XFS_ITEM_PINNED; 237 return XFS_ITEM_PINNED;
238 238
239 if (!xfs_qm_dqlock_nowait(dqp)) 239 if (!xfs_dqlock_nowait(dqp))
240 return XFS_ITEM_LOCKED; 240 return XFS_ITEM_LOCKED;
241 241
242 if (!xfs_dqflock_nowait(dqp)) { 242 if (!xfs_dqflock_nowait(dqp)) {
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index fc60ec21289b..6535c4e5f875 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -443,7 +443,7 @@ again:
443 * out immediately. We'll be able to acquire 443 * out immediately. We'll be able to acquire
444 * the flush lock when the I/O completes. 444 * the flush lock when the I/O completes.
445 */ 445 */
446 xfs_qm_dqflock_pushbuf_wait(dqp); 446 xfs_dqflock_pushbuf_wait(dqp);
447 } 447 }
448 /* 448 /*
449 * Let go of the mplist lock. We don't want to hold it 449 * Let go of the mplist lock. We don't want to hold it