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path: root/fs/xfs/quota/xfs_dquot_item.c
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Diffstat (limited to 'fs/xfs/quota/xfs_dquot_item.c')
-rw-r--r--fs/xfs/quota/xfs_dquot_item.c99
1 files changed, 18 insertions, 81 deletions
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index d0d4a9a0bbd7..4e4ee9a57194 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -74,11 +74,11 @@ xfs_qm_dquot_logitem_format(
74 74
75 logvec->i_addr = (xfs_caddr_t)&logitem->qli_format; 75 logvec->i_addr = (xfs_caddr_t)&logitem->qli_format;
76 logvec->i_len = sizeof(xfs_dq_logformat_t); 76 logvec->i_len = sizeof(xfs_dq_logformat_t);
77 XLOG_VEC_SET_TYPE(logvec, XLOG_REG_TYPE_QFORMAT); 77 logvec->i_type = XLOG_REG_TYPE_QFORMAT;
78 logvec++; 78 logvec++;
79 logvec->i_addr = (xfs_caddr_t)&logitem->qli_dquot->q_core; 79 logvec->i_addr = (xfs_caddr_t)&logitem->qli_dquot->q_core;
80 logvec->i_len = sizeof(xfs_disk_dquot_t); 80 logvec->i_len = sizeof(xfs_disk_dquot_t);
81 XLOG_VEC_SET_TYPE(logvec, XLOG_REG_TYPE_DQUOT); 81 logvec->i_type = XLOG_REG_TYPE_DQUOT;
82 82
83 ASSERT(2 == logitem->qli_item.li_desc->lid_size); 83 ASSERT(2 == logitem->qli_item.li_desc->lid_size);
84 logitem->qli_format.qlf_size = 2; 84 logitem->qli_format.qlf_size = 2;
@@ -153,7 +153,7 @@ xfs_qm_dquot_logitem_push(
153 * lock without sleeping, then there must not have been 153 * lock without sleeping, then there must not have been
154 * anyone in the process of flushing the dquot. 154 * anyone in the process of flushing the dquot.
155 */ 155 */
156 error = xfs_qm_dqflush(dqp, XFS_QMOPT_DELWRI); 156 error = xfs_qm_dqflush(dqp, 0);
157 if (error) 157 if (error)
158 xfs_fs_cmn_err(CE_WARN, dqp->q_mount, 158 xfs_fs_cmn_err(CE_WARN, dqp->q_mount,
159 "xfs_qm_dquot_logitem_push: push error %d on dqp %p", 159 "xfs_qm_dquot_logitem_push: push error %d on dqp %p",
@@ -190,7 +190,7 @@ xfs_qm_dqunpin_wait(
190 /* 190 /*
191 * Give the log a push so we don't wait here too long. 191 * Give the log a push so we don't wait here too long.
192 */ 192 */
193 xfs_log_force(dqp->q_mount, (xfs_lsn_t)0, XFS_LOG_FORCE); 193 xfs_log_force(dqp->q_mount, 0);
194 wait_event(dqp->q_pinwait, (atomic_read(&dqp->q_pincount) == 0)); 194 wait_event(dqp->q_pinwait, (atomic_read(&dqp->q_pincount) == 0));
195} 195}
196 196
@@ -212,68 +212,31 @@ xfs_qm_dquot_logitem_pushbuf(
212 xfs_dquot_t *dqp; 212 xfs_dquot_t *dqp;
213 xfs_mount_t *mp; 213 xfs_mount_t *mp;
214 xfs_buf_t *bp; 214 xfs_buf_t *bp;
215 uint dopush;
216 215
217 dqp = qip->qli_dquot; 216 dqp = qip->qli_dquot;
218 ASSERT(XFS_DQ_IS_LOCKED(dqp)); 217 ASSERT(XFS_DQ_IS_LOCKED(dqp));
219 218
220 /* 219 /*
221 * The qli_pushbuf_flag keeps others from
222 * trying to duplicate our effort.
223 */
224 ASSERT(qip->qli_pushbuf_flag != 0);
225 ASSERT(qip->qli_push_owner == current_pid());
226
227 /*
228 * If flushlock isn't locked anymore, chances are that the 220 * If flushlock isn't locked anymore, chances are that the
229 * inode flush completed and the inode was taken off the AIL. 221 * inode flush completed and the inode was taken off the AIL.
230 * So, just get out. 222 * So, just get out.
231 */ 223 */
232 if (completion_done(&dqp->q_flush) || 224 if (completion_done(&dqp->q_flush) ||
233 ((qip->qli_item.li_flags & XFS_LI_IN_AIL) == 0)) { 225 ((qip->qli_item.li_flags & XFS_LI_IN_AIL) == 0)) {
234 qip->qli_pushbuf_flag = 0;
235 xfs_dqunlock(dqp); 226 xfs_dqunlock(dqp);
236 return; 227 return;
237 } 228 }
238 mp = dqp->q_mount; 229 mp = dqp->q_mount;
239 bp = xfs_incore(mp->m_ddev_targp, qip->qli_format.qlf_blkno, 230 bp = xfs_incore(mp->m_ddev_targp, qip->qli_format.qlf_blkno,
240 XFS_QI_DQCHUNKLEN(mp), 231 XFS_QI_DQCHUNKLEN(mp), XBF_TRYLOCK);
241 XFS_INCORE_TRYLOCK); 232 xfs_dqunlock(dqp);
242 if (bp != NULL) { 233 if (!bp)
243 if (XFS_BUF_ISDELAYWRITE(bp)) {
244 dopush = ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
245 !completion_done(&dqp->q_flush));
246 qip->qli_pushbuf_flag = 0;
247 xfs_dqunlock(dqp);
248
249 if (XFS_BUF_ISPINNED(bp)) {
250 xfs_log_force(mp, (xfs_lsn_t)0,
251 XFS_LOG_FORCE);
252 }
253 if (dopush) {
254 int error;
255#ifdef XFSRACEDEBUG
256 delay_for_intr();
257 delay(300);
258#endif
259 error = xfs_bawrite(mp, bp);
260 if (error)
261 xfs_fs_cmn_err(CE_WARN, mp,
262 "xfs_qm_dquot_logitem_pushbuf: pushbuf error %d on qip %p, bp %p",
263 error, qip, bp);
264 } else {
265 xfs_buf_relse(bp);
266 }
267 } else {
268 qip->qli_pushbuf_flag = 0;
269 xfs_dqunlock(dqp);
270 xfs_buf_relse(bp);
271 }
272 return; 234 return;
273 } 235 if (XFS_BUF_ISDELAYWRITE(bp))
236 xfs_buf_delwri_promote(bp);
237 xfs_buf_relse(bp);
238 return;
274 239
275 qip->qli_pushbuf_flag = 0;
276 xfs_dqunlock(dqp);
277} 240}
278 241
279/* 242/*
@@ -291,50 +254,24 @@ xfs_qm_dquot_logitem_trylock(
291 xfs_dq_logitem_t *qip) 254 xfs_dq_logitem_t *qip)
292{ 255{
293 xfs_dquot_t *dqp; 256 xfs_dquot_t *dqp;
294 uint retval;
295 257
296 dqp = qip->qli_dquot; 258 dqp = qip->qli_dquot;
297 if (atomic_read(&dqp->q_pincount) > 0) 259 if (atomic_read(&dqp->q_pincount) > 0)
298 return (XFS_ITEM_PINNED); 260 return XFS_ITEM_PINNED;
299 261
300 if (! xfs_qm_dqlock_nowait(dqp)) 262 if (! xfs_qm_dqlock_nowait(dqp))
301 return (XFS_ITEM_LOCKED); 263 return XFS_ITEM_LOCKED;
302 264
303 retval = XFS_ITEM_SUCCESS;
304 if (!xfs_dqflock_nowait(dqp)) { 265 if (!xfs_dqflock_nowait(dqp)) {
305 /* 266 /*
306 * The dquot is already being flushed. It may have been 267 * dquot has already been flushed to the backing buffer,
307 * flushed delayed write, however, and we don't want to 268 * leave it locked, pushbuf routine will unlock it.
308 * get stuck waiting for that to complete. So, we want to check
309 * to see if we can lock the dquot's buffer without sleeping.
310 * If we can and it is marked for delayed write, then we
311 * hold it and send it out from the push routine. We don't
312 * want to do that now since we might sleep in the device
313 * strategy routine. We also don't want to grab the buffer lock
314 * here because we'd like not to call into the buffer cache
315 * while holding the AIL lock.
316 * Make sure to only return PUSHBUF if we set pushbuf_flag
317 * ourselves. If someone else is doing it then we don't
318 * want to go to the push routine and duplicate their efforts.
319 */ 269 */
320 if (qip->qli_pushbuf_flag == 0) { 270 return XFS_ITEM_PUSHBUF;
321 qip->qli_pushbuf_flag = 1;
322 ASSERT(qip->qli_format.qlf_blkno == dqp->q_blkno);
323#ifdef DEBUG
324 qip->qli_push_owner = current_pid();
325#endif
326 /*
327 * The dquot is left locked.
328 */
329 retval = XFS_ITEM_PUSHBUF;
330 } else {
331 retval = XFS_ITEM_FLUSHING;
332 xfs_dqunlock_nonotify(dqp);
333 }
334 } 271 }
335 272
336 ASSERT(qip->qli_item.li_flags & XFS_LI_IN_AIL); 273 ASSERT(qip->qli_item.li_flags & XFS_LI_IN_AIL);
337 return (retval); 274 return XFS_ITEM_SUCCESS;
338} 275}
339 276
340 277
@@ -467,7 +404,7 @@ xfs_qm_qoff_logitem_format(xfs_qoff_logitem_t *qf,
467 404
468 log_vector->i_addr = (xfs_caddr_t)&(qf->qql_format); 405 log_vector->i_addr = (xfs_caddr_t)&(qf->qql_format);
469 log_vector->i_len = sizeof(xfs_qoff_logitem_t); 406 log_vector->i_len = sizeof(xfs_qoff_logitem_t);
470 XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_QUOTAOFF); 407 log_vector->i_type = XLOG_REG_TYPE_QUOTAOFF;
471 qf->qql_format.qf_size = 1; 408 qf->qql_format.qf_size = 1;
472} 409}
473 410