diff options
Diffstat (limited to 'fs/xfs/quota/xfs_dquot.c')
| -rw-r--r-- | fs/xfs/quota/xfs_dquot.c | 43 |
1 files changed, 36 insertions, 7 deletions
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c index 46ce1e3ce1d6..e2e8d35fa4d0 100644 --- a/fs/xfs/quota/xfs_dquot.c +++ b/fs/xfs/quota/xfs_dquot.c @@ -421,7 +421,7 @@ xfs_qm_init_dquot_blk( */ STATIC int xfs_qm_dqalloc( - xfs_trans_t *tp, + xfs_trans_t **tpp, xfs_mount_t *mp, xfs_dquot_t *dqp, xfs_inode_t *quotip, @@ -433,6 +433,7 @@ xfs_qm_dqalloc( xfs_bmbt_irec_t map; int nmaps, error, committed; xfs_buf_t *bp; + xfs_trans_t *tp = *tpp; ASSERT(tp != NULL); xfs_dqtrace_entry(dqp, "DQALLOC"); @@ -492,10 +493,32 @@ xfs_qm_dqalloc( xfs_qm_init_dquot_blk(tp, mp, INT_GET(dqp->q_core.d_id, ARCH_CONVERT), dqp->dq_flags & XFS_DQ_ALLTYPES, bp); - if ((error = xfs_bmap_finish(&tp, &flist, firstblock, &committed))) { + /* + * xfs_bmap_finish() may commit the current transaction and + * start a second transaction if the freelist is not empty. + * + * Since we still want to modify this buffer, we need to + * ensure that the buffer is not released on commit of + * the first transaction and ensure the buffer is added to the + * second transaction. + * + * If there is only one transaction then don't stop the buffer + * from being released when it commits later on. + */ + + xfs_trans_bhold(tp, bp); + + if ((error = xfs_bmap_finish(tpp, &flist, firstblock, &committed))) { goto error1; } + if (committed) { + tp = *tpp; + xfs_trans_bjoin(tp, bp); + } else { + xfs_trans_bhold_release(tp, bp); + } + *O_bpp = bp; return 0; @@ -514,7 +537,7 @@ xfs_qm_dqalloc( */ STATIC int xfs_qm_dqtobp( - xfs_trans_t *tp, + xfs_trans_t **tpp, xfs_dquot_t *dqp, xfs_disk_dquot_t **O_ddpp, xfs_buf_t **O_bpp, @@ -528,6 +551,7 @@ xfs_qm_dqtobp( xfs_disk_dquot_t *ddq; xfs_dqid_t id; boolean_t newdquot; + xfs_trans_t *tp = (tpp ? *tpp : NULL); mp = dqp->q_mount; id = INT_GET(dqp->q_core.d_id, ARCH_CONVERT); @@ -579,9 +603,10 @@ xfs_qm_dqtobp( return (ENOENT); ASSERT(tp); - if ((error = xfs_qm_dqalloc(tp, mp, dqp, quotip, + if ((error = xfs_qm_dqalloc(tpp, mp, dqp, quotip, dqp->q_fileoffset, &bp))) return (error); + tp = *tpp; newdquot = B_TRUE; } else { /* @@ -645,7 +670,7 @@ xfs_qm_dqtobp( /* ARGSUSED */ STATIC int xfs_qm_dqread( - xfs_trans_t *tp, + xfs_trans_t **tpp, xfs_dqid_t id, xfs_dquot_t *dqp, /* dquot to get filled in */ uint flags) @@ -653,15 +678,19 @@ xfs_qm_dqread( xfs_disk_dquot_t *ddqp; xfs_buf_t *bp; int error; + xfs_trans_t *tp; + + ASSERT(tpp); /* * get a pointer to the on-disk dquot and the buffer containing it * dqp already knows its own type (GROUP/USER). */ xfs_dqtrace_entry(dqp, "DQREAD"); - if ((error = xfs_qm_dqtobp(tp, dqp, &ddqp, &bp, flags))) { + if ((error = xfs_qm_dqtobp(tpp, dqp, &ddqp, &bp, flags))) { return (error); } + tp = *tpp; /* copy everything from disk dquot to the incore dquot */ memcpy(&dqp->q_core, ddqp, sizeof(xfs_disk_dquot_t)); @@ -740,7 +769,7 @@ xfs_qm_idtodq( * Read it from disk; xfs_dqread() takes care of * all the necessary initialization of dquot's fields (locks, etc) */ - if ((error = xfs_qm_dqread(tp, id, dqp, flags))) { + if ((error = xfs_qm_dqread(&tp, id, dqp, flags))) { /* * This can happen if quotas got turned off (ESRCH), * or if the dquot didn't exist on disk and we ask to |