diff options
Diffstat (limited to 'fs/xfs/quota')
| -rw-r--r-- | fs/xfs/quota/xfs_dquot.c | 39 | ||||
| -rw-r--r-- | fs/xfs/quota/xfs_dquot.h | 4 | ||||
| -rw-r--r-- | fs/xfs/quota/xfs_dquot_item.c | 45 | ||||
| -rw-r--r-- | fs/xfs/quota/xfs_qm.c | 57 | ||||
| -rw-r--r-- | fs/xfs/quota/xfs_qm.h | 3 | ||||
| -rw-r--r-- | fs/xfs/quota/xfs_qm_bhv.c | 5 | ||||
| -rw-r--r-- | fs/xfs/quota/xfs_qm_syscalls.c | 151 |
7 files changed, 126 insertions, 178 deletions
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c index f2705f2fd43..591ca6602bf 100644 --- a/fs/xfs/quota/xfs_dquot.c +++ b/fs/xfs/quota/xfs_dquot.c @@ -101,7 +101,7 @@ xfs_qm_dqinit( if (brandnewdquot) { dqp->dq_flnext = dqp->dq_flprev = dqp; mutex_init(&dqp->q_qlock); - sv_init(&dqp->q_pinwait, SV_DEFAULT, "pdq"); + init_waitqueue_head(&dqp->q_pinwait); /* * Because we want to use a counting completion, complete @@ -131,7 +131,7 @@ xfs_qm_dqinit( dqp->q_res_bcount = 0; dqp->q_res_icount = 0; dqp->q_res_rtbcount = 0; - dqp->q_pincount = 0; + atomic_set(&dqp->q_pincount, 0); dqp->q_hash = NULL; ASSERT(dqp->dq_flnext == dqp->dq_flprev); @@ -1221,16 +1221,14 @@ xfs_qm_dqflush( xfs_dqtrace_entry(dqp, "DQFLUSH"); /* - * If not dirty, nada. + * If not dirty, or it's pinned and we are not supposed to + * block, nada. */ - if (!XFS_DQ_IS_DIRTY(dqp)) { + if (!XFS_DQ_IS_DIRTY(dqp) || + (!(flags & XFS_QMOPT_SYNC) && atomic_read(&dqp->q_pincount) > 0)) { xfs_dqfunlock(dqp); - return (0); + return 0; } - - /* - * Cant flush a pinned dquot. Wait for it. - */ xfs_qm_dqunpin_wait(dqp); /* @@ -1274,10 +1272,8 @@ xfs_qm_dqflush( dqp->dq_flags &= ~(XFS_DQ_DIRTY); mp = dqp->q_mount; - /* lsn is 64 bits */ - spin_lock(&mp->m_ail_lock); - dqp->q_logitem.qli_flush_lsn = dqp->q_logitem.qli_item.li_lsn; - spin_unlock(&mp->m_ail_lock); + xfs_trans_ail_copy_lsn(mp->m_ail, &dqp->q_logitem.qli_flush_lsn, + &dqp->q_logitem.qli_item.li_lsn); /* * Attach an iodone routine so that we can remove this dquot from the @@ -1323,8 +1319,10 @@ xfs_qm_dqflush_done( xfs_dq_logitem_t *qip) { xfs_dquot_t *dqp; + struct xfs_ail *ailp; dqp = qip->qli_dquot; + ailp = qip->qli_item.li_ailp; /* * We only want to pull the item from the AIL if its @@ -1337,15 +1335,12 @@ xfs_qm_dqflush_done( if ((qip->qli_item.li_flags & XFS_LI_IN_AIL) && qip->qli_item.li_lsn == qip->qli_flush_lsn) { - spin_lock(&dqp->q_mount->m_ail_lock); - /* - * xfs_trans_delete_ail() drops the AIL lock. - */ + /* xfs_trans_ail_delete() drops the AIL lock. */ + spin_lock(&ailp->xa_lock); if (qip->qli_item.li_lsn == qip->qli_flush_lsn) - xfs_trans_delete_ail(dqp->q_mount, - (xfs_log_item_t*)qip); + xfs_trans_ail_delete(ailp, (xfs_log_item_t*)qip); else - spin_unlock(&dqp->q_mount->m_ail_lock); + spin_unlock(&ailp->xa_lock); } /* @@ -1375,7 +1370,7 @@ xfs_dqunlock( mutex_unlock(&(dqp->q_qlock)); if (dqp->q_logitem.qli_dquot == dqp) { /* Once was dqp->q_mount, but might just have been cleared */ - xfs_trans_unlocked_item(dqp->q_logitem.qli_item.li_mountp, + xfs_trans_unlocked_item(dqp->q_logitem.qli_item.li_ailp, (xfs_log_item_t*)&(dqp->q_logitem)); } } @@ -1489,7 +1484,7 @@ xfs_qm_dqpurge( "xfs_qm_dqpurge: dquot %p flush failed", dqp); xfs_dqflock(dqp); } - ASSERT(dqp->q_pincount == 0); + ASSERT(atomic_read(&dqp->q_pincount) == 0); ASSERT(XFS_FORCED_SHUTDOWN(mp) || !(dqp->q_logitem.qli_item.li_flags & XFS_LI_IN_AIL)); diff --git a/fs/xfs/quota/xfs_dquot.h b/fs/xfs/quota/xfs_dquot.h index 8958d0faf8d..7e455337e2b 100644 --- a/fs/xfs/quota/xfs_dquot.h +++ b/fs/xfs/quota/xfs_dquot.h @@ -83,8 +83,8 @@ typedef struct xfs_dquot { xfs_qcnt_t q_res_rtbcount;/* total realtime blks used+reserved */ mutex_t q_qlock; /* quota lock */ struct completion q_flush; /* flush completion queue */ - uint q_pincount; /* pin count for this dquot */ - sv_t q_pinwait; /* sync var for pinning */ + atomic_t q_pincount; /* dquot pin count */ + wait_queue_head_t q_pinwait; /* dquot pinning wait queue */ #ifdef XFS_DQUOT_TRACE struct ktrace *q_trace; /* trace header structure */ #endif diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c index f028644caa5..1728f6a7c4f 100644 --- a/fs/xfs/quota/xfs_dquot_item.c +++ b/fs/xfs/quota/xfs_dquot_item.c @@ -88,25 +88,22 @@ xfs_qm_dquot_logitem_format( /* * Increment the pin count of the given dquot. - * This value is protected by pinlock spinlock in the xQM structure. */ STATIC void xfs_qm_dquot_logitem_pin( xfs_dq_logitem_t *logitem) { - xfs_dquot_t *dqp; + xfs_dquot_t *dqp = logitem->qli_dquot; - dqp = logitem->qli_dquot; ASSERT(XFS_DQ_IS_LOCKED(dqp)); - spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock)); - dqp->q_pincount++; - spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock)); + atomic_inc(&dqp->q_pincount); } /* * Decrement the pin count of the given dquot, and wake up * anyone in xfs_dqwait_unpin() if the count goes to 0. The - * dquot must have been previously pinned with a call to xfs_dqpin(). + * dquot must have been previously pinned with a call to + * xfs_qm_dquot_logitem_pin(). */ /* ARGSUSED */ STATIC void @@ -114,16 +111,11 @@ xfs_qm_dquot_logitem_unpin( xfs_dq_logitem_t *logitem, int stale) { - xfs_dquot_t *dqp; + xfs_dquot_t *dqp = logitem->qli_dquot; - dqp = logitem->qli_dquot; - ASSERT(dqp->q_pincount > 0); - spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock)); - dqp->q_pincount--; - if (dqp->q_pincount == 0) { - sv_broadcast(&dqp->q_pinwait); - } - spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock)); + ASSERT(atomic_read(&dqp->q_pincount) > 0); + if (atomic_dec_and_test(&dqp->q_pincount)) + wake_up(&dqp->q_pinwait); } /* ARGSUSED */ @@ -193,21 +185,14 @@ xfs_qm_dqunpin_wait( xfs_dquot_t *dqp) { ASSERT(XFS_DQ_IS_LOCKED(dqp)); - if (dqp->q_pincount == 0) { + if (atomic_read(&dqp->q_pincount) == 0) return; - } /* * Give the log a push so we don't wait here too long. */ xfs_log_force(dqp->q_mount, (xfs_lsn_t)0, XFS_LOG_FORCE); - spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock)); - if (dqp->q_pincount == 0) { - spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock)); - return; - } - sv_wait(&(dqp->q_pinwait), PINOD, - &(XFS_DQ_TO_QINF(dqp)->qi_pinlock), s); + wait_event(dqp->q_pinwait, (atomic_read(&dqp->q_pincount) == 0)); } /* @@ -310,7 +295,7 @@ xfs_qm_dquot_logitem_trylock( uint retval; dqp = qip->qli_dquot; - if (dqp->q_pincount > 0) + if (atomic_read(&dqp->q_pincount) > 0) return (XFS_ITEM_PINNED); if (! xfs_qm_dqlock_nowait(dqp)) @@ -568,14 +553,16 @@ xfs_qm_qoffend_logitem_committed( xfs_lsn_t lsn) { xfs_qoff_logitem_t *qfs; + struct xfs_ail *ailp; qfs = qfe->qql_start_lip; - spin_lock(&qfs->qql_item.li_mountp->m_ail_lock); + ailp = qfs->qql_item.li_ailp; + spin_lock(&ailp->xa_lock); /* * Delete the qoff-start logitem from the AIL. - * xfs_trans_delete_ail() drops the AIL lock. + * xfs_trans_ail_delete() drops the AIL lock. */ - xfs_trans_delete_ail(qfs->qql_item.li_mountp, (xfs_log_item_t *)qfs); + xfs_trans_ail_delete(ailp, (xfs_log_item_t *)qfs); kmem_free(qfs); kmem_free(qfe); return (xfs_lsn_t)-1; diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c index df0ffef9775..6b13960cf31 100644 --- a/fs/xfs/quota/xfs_qm.c +++ b/fs/xfs/quota/xfs_qm.c @@ -20,7 +20,6 @@ #include "xfs_bit.h" #include "xfs_log.h" #include "xfs_inum.h" -#include "xfs_clnt.h" #include "xfs_trans.h" #include "xfs_sb.h" #include "xfs_ag.h" @@ -396,13 +395,10 @@ xfs_qm_mount_quotas( /* * Called from the vfsops layer. */ -int +void xfs_qm_unmount_quotas( xfs_mount_t *mp) { - xfs_inode_t *uqp, *gqp; - int error = 0; - /* * Release the dquots that root inode, et al might be holding, * before we flush quotas and blow away the quotainfo structure. @@ -415,43 +411,18 @@ xfs_qm_unmount_quotas( xfs_qm_dqdetach(mp->m_rsumip); /* - * Flush out the quota inodes. + * Release the quota inodes. */ - uqp = gqp = NULL; if (mp->m_quotainfo) { - if ((uqp = mp->m_quotainfo->qi_uquotaip) != NULL) { - xfs_ilock(uqp, XFS_ILOCK_EXCL); - xfs_iflock(uqp); - error = xfs_iflush(uqp, XFS_IFLUSH_SYNC); - xfs_iunlock(uqp, XFS_ILOCK_EXCL); - if (unlikely(error == EFSCORRUPTED)) { - XFS_ERROR_REPORT("xfs_qm_unmount_quotas(1)", - XFS_ERRLEVEL_LOW, mp); - goto out; - } + if (mp->m_quotainfo->qi_uquotaip) { + IRELE(mp->m_quotainfo->qi_uquotaip); + mp->m_quotainfo->qi_uquotaip = NULL; } - if ((gqp = mp->m_quotainfo->qi_gquotaip) != NULL) { - xfs_ilock(gqp, XFS_ILOCK_EXCL); - xfs_iflock(gqp); - error = xfs_iflush(gqp, XFS_IFLUSH_SYNC); - xfs_iunlock(gqp, XFS_ILOCK_EXCL); - if (unlikely(error == EFSCORRUPTED)) { - XFS_ERROR_REPORT("xfs_qm_unmount_quotas(2)", - XFS_ERRLEVEL_LOW, mp); - goto out; - } + if (mp->m_quotainfo->qi_gquotaip) { + IRELE(mp->m_quotainfo->qi_gquotaip); + mp->m_quotainfo->qi_gquotaip = NULL; } } - if (uqp) { - IRELE(uqp); - mp->m_quotainfo->qi_uquotaip = NULL; - } - if (gqp) { - IRELE(gqp); - mp->m_quotainfo->qi_gquotaip = NULL; - } -out: - return XFS_ERROR(error); } /* @@ -987,14 +958,10 @@ xfs_qm_dqdetach( } /* - * This is called by VFS_SYNC and flags arg determines the caller, - * and its motives, as done in xfs_sync. - * - * vfs_sync: SYNC_FSDATA|SYNC_ATTR|SYNC_BDFLUSH 0x31 - * syscall sync: SYNC_FSDATA|SYNC_ATTR|SYNC_DELWRI 0x25 - * umountroot : SYNC_WAIT | SYNC_CLOSE | SYNC_ATTR | SYNC_FSDATA + * This is called to sync quotas. We can be told to use non-blocking + * semantics by either the SYNC_BDFLUSH flag or the absence of the + * SYNC_WAIT flag. */ - int xfs_qm_sync( xfs_mount_t *mp, @@ -1137,7 +1104,6 @@ xfs_qm_init_quotainfo( return error; } - spin_lock_init(&qinf->qi_pinlock); xfs_qm_list_init(&qinf->qi_dqlist, "mpdqlist", 0); qinf->qi_dqreclaims = 0; @@ -1234,7 +1200,6 @@ xfs_qm_destroy_quotainfo( */ xfs_qm_rele_quotafs_ref(mp); - spinlock_destroy(&qi->qi_pinlock); xfs_qm_list_destroy(&qi->qi_dqlist); if (qi->qi_uquotaip) { diff --git a/fs/xfs/quota/xfs_qm.h b/fs/xfs/quota/xfs_qm.h index 44f25349e47..ddf09166387 100644 --- a/fs/xfs/quota/xfs_qm.h +++ b/fs/xfs/quota/xfs_qm.h @@ -106,7 +106,6 @@ typedef struct xfs_qm { typedef struct xfs_quotainfo { xfs_inode_t *qi_uquotaip; /* user quota inode */ xfs_inode_t *qi_gquotaip; /* group quota inode */ - spinlock_t qi_pinlock; /* dquot pinning lock */ xfs_dqlist_t qi_dqlist; /* all dquots in filesys */ int qi_dqreclaims; /* a change here indicates a removal in the dqlist */ @@ -168,7 +167,7 @@ extern void xfs_qm_destroy_quotainfo(xfs_mount_t *); extern void xfs_qm_mount_quotas(xfs_mount_t *); extern int xfs_qm_quotacheck(xfs_mount_t *); extern void xfs_qm_unmount_quotadestroy(xfs_mount_t *); -extern int xfs_qm_unmount_quotas(xfs_mount_t *); +extern void xfs_qm_unmount_quotas(xfs_mount_t *); extern int xfs_qm_write_sb_changes(xfs_mount_t *, __int64_t); extern int xfs_qm_sync(xfs_mount_t *, int); diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c index eea2e60b456..bc6c5cca3e1 100644 --- a/fs/xfs/quota/xfs_qm_bhv.c +++ b/fs/xfs/quota/xfs_qm_bhv.c @@ -20,7 +20,6 @@ #include "xfs_bit.h" #include "xfs_log.h" #include "xfs_inum.h" -#include "xfs_clnt.h" #include "xfs_trans.h" #include "xfs_sb.h" #include "xfs_ag.h" @@ -51,7 +50,7 @@ STATIC void xfs_fill_statvfs_from_dquot( - bhv_statvfs_t *statp, + struct kstatfs *statp, xfs_disk_dquot_t *dp) { __uint64_t limit; @@ -88,7 +87,7 @@ xfs_fill_statvfs_from_dquot( STATIC void xfs_qm_statvfs( xfs_inode_t *ip, - bhv_statvfs_t *statp) + struct kstatfs *statp) { xfs_mount_t *mp = ip->i_mount; xfs_dquot_t *dqp; diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c index 1a3b803dfa5..68139b38aed 100644 --- a/fs/xfs/quota/xfs_qm_syscalls.c +++ b/fs/xfs/quota/xfs_qm_syscalls.c @@ -127,7 +127,7 @@ xfs_qm_quotactl( break; case Q_XQUOTASYNC: - return (xfs_sync_inodes(mp, SYNC_DELWRI, NULL)); + return xfs_sync_inodes(mp, SYNC_DELWRI); default: break; @@ -1022,101 +1022,104 @@ xfs_qm_export_flags( /* - * Go thru all the inodes in the file system, releasing their dquots. - * Note that the mount structure gets modified to indicate that quotas are off - * AFTER this, in the case of quotaoff. This also gets called from - * xfs_rootumount. + * Release all the dquots on the inodes in an AG. */ -void -xfs_qm_dqrele_all_inodes( - struct xfs_mount *mp, - uint flags) +STATIC void +xfs_qm_dqrele_inodes_ag( + xfs_mount_t *mp, + int ag, + uint flags) { - xfs_inode_t *ip, *topino; - uint ireclaims; - struct inode *vp; - boolean_t vnode_refd; + xfs_inode_t *ip = NULL; + xfs_perag_t *pag = &mp->m_perag[ag]; + int first_index = 0; + int nr_found; - ASSERT(mp->m_quotainfo); - - XFS_MOUNT_ILOCK(mp); -again: - ip = mp->m_inodes; - if (ip == NULL) { - XFS_MOUNT_IUNLOCK(mp); - return; - } do { - /* Skip markers inserted by xfs_sync */ - if (ip->i_mount == NULL) { - ip = ip->i_mnext; - continue; + /* + * use a gang lookup to find the next inode in the tree + * as the tree is sparse and a gang lookup walks to find + * the number of objects requested. + */ + read_lock(&pag->pag_ici_lock); + nr_found = radix_tree_gang_lookup(&pag->pag_ici_root, + (void**)&ip, first_index, 1); + + if (!nr_found) { + read_unlock(&pag->pag_ici_lock); + break; } - /* Root inode, rbmip and rsumip have associated blocks */ + + /* + * Update the index for the next lookup. Catch overflows + * into the next AG range which can occur if we have inodes + * in the last block of the AG and we are currently + * pointing to the last inode. + */ + first_index = XFS_INO_TO_AGINO(mp, ip->i_ino + 1); + if (first_index < XFS_INO_TO_AGINO(mp, ip->i_ino)) { + read_unlock(&pag->pag_ici_lock); + break; + } + + /* skip quota inodes */ if (ip == XFS_QI_UQIP(mp) || ip == XFS_QI_GQIP(mp)) { ASSERT(ip->i_udquot == NULL); ASSERT(ip->i_gdquot == NULL); - ip = ip->i_mnext; + read_unlock(&pag->pag_ici_lock); continue; } - vp = VFS_I(ip); - if (!vp) { - ASSERT(ip->i_udquot == NULL); - ASSERT(ip->i_gdquot == NULL); - ip = ip->i_mnext; + + /* + * If we can't get a reference on the inode, it must be + * in reclaim. Leave it for the reclaim code to flush. + */ + if (!igrab(VFS_I(ip))) { + read_unlock(&pag->pag_ici_lock); continue; } - vnode_refd = B_FALSE; - if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL) == 0) { - ireclaims = mp->m_ireclaims; - topino = mp->m_inodes; - vp = vn_grab(vp); - if (!vp) - goto again; - - XFS_MOUNT_IUNLOCK(mp); - /* XXX restart limit ? */ - xfs_ilock(ip, XFS_ILOCK_EXCL); - vnode_refd = B_TRUE; - } else { - ireclaims = mp->m_ireclaims; - topino = mp->m_inodes; - XFS_MOUNT_IUNLOCK(mp); + read_unlock(&pag->pag_ici_lock); + + /* avoid new inodes though we shouldn't find any here */ + if (xfs_iflags_test(ip, XFS_INEW)) { + IRELE(ip); + continue; } - /* - * We don't keep the mountlock across the dqrele() call, - * since it can take a while.. - */ + xfs_ilock(ip, XFS_ILOCK_EXCL); if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) { xfs_qm_dqrele(ip->i_udquot); ip->i_udquot = NULL; } - if (flags & (XFS_PQUOTA_ACCT|XFS_GQUOTA_ACCT) && ip->i_gdquot) { + if (flags & (XFS_PQUOTA_ACCT|XFS_GQUOTA_ACCT) && + ip->i_gdquot) { xfs_qm_dqrele(ip->i_gdquot); ip->i_gdquot = NULL; } - xfs_iunlock(ip, XFS_ILOCK_EXCL); - /* - * Wait until we've dropped the ilock and mountlock to - * do the vn_rele. Or be condemned to an eternity in the - * inactive code in hell. - */ - if (vnode_refd) - IRELE(ip); - XFS_MOUNT_ILOCK(mp); - /* - * If an inode was inserted or removed, we gotta - * start over again. - */ - if (topino != mp->m_inodes || mp->m_ireclaims != ireclaims) { - /* XXX use a sentinel */ - goto again; - } - ip = ip->i_mnext; - } while (ip != mp->m_inodes); + xfs_iput(ip, XFS_ILOCK_EXCL); + + } while (nr_found); +} + +/* + * Go thru all the inodes in the file system, releasing their dquots. + * Note that the mount structure gets modified to indicate that quotas are off + * AFTER this, in the case of quotaoff. This also gets called from + * xfs_rootumount. + */ +void +xfs_qm_dqrele_all_inodes( + struct xfs_mount *mp, + uint flags) +{ + int i; - XFS_MOUNT_IUNLOCK(mp); + ASSERT(mp->m_quotainfo); + for (i = 0; i < mp->m_sb.sb_agcount; i++) { + if (!mp->m_perag[i].pag_ici_init) + continue; + xfs_qm_dqrele_inodes_ag(mp, i, flags); + } } /*------------------------------------------------------------------------*/ |