diff options
author | Nathan Scott <nathans@sgi.com> | 2006-03-31 03:04:49 (GMT) |
---|---|---|
committer | Nathan Scott <nathans@sgi.com> | 2006-03-31 03:04:49 (GMT) |
commit | 9a2a7de268f67fea0c450ed3e99a2d31f43d7166 (patch) | |
tree | aa33552898e4400fac51447babf94c8e099b9a21 /fs/xfs/quota | |
parent | 764d1f89a5f2b914bc13b1b8b8920a600a5fba10 (diff) | |
download | linux-9a2a7de268f67fea0c450ed3e99a2d31f43d7166.tar.xz |
[XFS] Make project quota enforcement return an error code consistent with
its use.
SGI-PV: 951300
SGI-Modid: xfs-linux-melb:xfs-kern:25633a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs/quota')
-rw-r--r-- | fs/xfs/quota/xfs_qm.c | 17 | ||||
-rw-r--r-- | fs/xfs/quota/xfs_trans_dquot.c | 68 |
2 files changed, 46 insertions, 39 deletions
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c index 73c1e5e8..7fb5eca 100644 --- a/fs/xfs/quota/xfs_qm.c +++ b/fs/xfs/quota/xfs_qm.c @@ -2624,7 +2624,7 @@ xfs_qm_vop_chown_reserve( { int error; xfs_mount_t *mp; - uint delblks, blkflags; + uint delblks, blkflags, prjflags = 0; xfs_dquot_t *unresudq, *unresgdq, *delblksudq, *delblksgdq; ASSERT(XFS_ISLOCKED_INODE(ip)); @@ -2650,10 +2650,13 @@ xfs_qm_vop_chown_reserve( } } if (XFS_IS_OQUOTA_ON(ip->i_mount) && gdqp) { - if ((XFS_IS_GQUOTA_ON(ip->i_mount) && - ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id)) || - (XFS_IS_PQUOTA_ON(ip->i_mount) && - ip->i_d.di_projid != be32_to_cpu(gdqp->q_core.d_id))) { + if (XFS_IS_PQUOTA_ON(ip->i_mount) && + ip->i_d.di_projid != be32_to_cpu(gdqp->q_core.d_id)) + prjflags = XFS_QMOPT_ENOSPC; + + if (prjflags || + (XFS_IS_GQUOTA_ON(ip->i_mount) && + ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id))) { delblksgdq = gdqp; if (delblks) { ASSERT(ip->i_gdquot); @@ -2664,7 +2667,7 @@ xfs_qm_vop_chown_reserve( if ((error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount, delblksudq, delblksgdq, ip->i_d.di_nblocks, 1, - flags | blkflags))) + flags | blkflags | prjflags))) return (error); /* @@ -2681,7 +2684,7 @@ xfs_qm_vop_chown_reserve( ASSERT(unresudq || unresgdq); if ((error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, delblksudq, delblksgdq, (xfs_qcnt_t)delblks, 0, - flags | blkflags))) + flags | blkflags | prjflags))) return (error); xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, unresudq, unresgdq, -((xfs_qcnt_t)delblks), 0, diff --git a/fs/xfs/quota/xfs_trans_dquot.c b/fs/xfs/quota/xfs_trans_dquot.c index d8e131e..9168918 100644 --- a/fs/xfs/quota/xfs_trans_dquot.c +++ b/fs/xfs/quota/xfs_trans_dquot.c @@ -595,12 +595,19 @@ xfs_trans_unreserve_and_mod_dquots( } } +STATIC int +xfs_quota_error(uint flags) +{ + if (flags & XFS_QMOPT_ENOSPC) + return ENOSPC; + return EDQUOT; +} + /* * This reserves disk blocks and inodes against a dquot. * Flags indicate if the dquot is to be locked here and also * if the blk reservation is for RT or regular blocks. * Sending in XFS_QMOPT_FORCE_RES flag skips the quota check. - * Returns EDQUOT if quota is exceeded. */ STATIC int xfs_trans_dqresv( @@ -666,19 +673,15 @@ xfs_trans_dqresv( */ if (hardlimit > 0ULL && (hardlimit <= nblks + *resbcountp)) { - error = EDQUOT; + error = xfs_quota_error(flags); goto error_return; } if (softlimit > 0ULL && (softlimit <= nblks + *resbcountp)) { - /* - * If timer or warnings has expired, - * return EDQUOT - */ if ((timer != 0 && get_seconds() > timer) || (warns != 0 && warns >= warnlimit)) { - error = EDQUOT; + error = xfs_quota_error(flags); goto error_return; } } @@ -695,16 +698,12 @@ xfs_trans_dqresv( if (!softlimit) softlimit = q->qi_isoftlimit; if (hardlimit > 0ULL && count >= hardlimit) { - error = EDQUOT; + error = xfs_quota_error(flags); goto error_return; } else if (softlimit > 0ULL && count >= softlimit) { - /* - * If timer or warnings has expired, - * return EDQUOT - */ if ((timer != 0 && get_seconds() > timer) || (warns != 0 && warns >= warnlimit)) { - error = EDQUOT; + error = xfs_quota_error(flags); goto error_return; } } @@ -751,13 +750,14 @@ error_return: /* - * Given a dquot(s), make disk block and/or inode reservations against them. + * Given dquot(s), make disk block and/or inode reservations against them. * The fact that this does the reservation against both the usr and - * grp quotas is important, because this follows a both-or-nothing + * grp/prj quotas is important, because this follows a both-or-nothing * approach. * * flags = XFS_QMOPT_DQLOCK indicate if dquot(s) need to be locked. * XFS_QMOPT_FORCE_RES evades limit enforcement. Used by chown. + * XFS_QMOPT_ENOSPC returns ENOSPC not EDQUOT. Used by pquota. * XFS_TRANS_DQ_RES_BLKS reserves regular disk blocks * XFS_TRANS_DQ_RES_RTBLKS reserves realtime disk blocks * dquots are unlocked on return, if they were not locked by caller. @@ -772,25 +772,27 @@ xfs_trans_reserve_quota_bydquots( long ninos, uint flags) { - int resvd; + int resvd = 0, error; - if (! XFS_IS_QUOTA_ON(mp)) - return (0); + if (!XFS_IS_QUOTA_ON(mp)) + return 0; if (tp && tp->t_dqinfo == NULL) xfs_trans_alloc_dqinfo(tp); ASSERT(flags & XFS_QMOPT_RESBLK_MASK); - resvd = 0; if (udqp) { - if (xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, flags)) - return (EDQUOT); + error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, + (flags & ~XFS_QMOPT_ENOSPC)); + if (error) + return error; resvd = 1; } if (gdqp) { - if (xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags)) { + error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags); + if (error) { /* * can't do it, so backout previous reservation */ @@ -799,14 +801,14 @@ xfs_trans_reserve_quota_bydquots( xfs_trans_dqresv(tp, mp, udqp, -nblks, -ninos, flags); } - return (EDQUOT); + return error; } } /* * Didn't change anything critical, so, no need to log */ - return (0); + return 0; } @@ -814,8 +816,6 @@ xfs_trans_reserve_quota_bydquots( * Lock the dquot and change the reservation if we can. * This doesn't change the actual usage, just the reservation. * The inode sent in is locked. - * - * Returns 0 on success, EDQUOT or other errors otherwise */ STATIC int xfs_trans_reserve_quota_nblks( @@ -824,20 +824,24 @@ xfs_trans_reserve_quota_nblks( xfs_inode_t *ip, long nblks, long ninos, - uint type) + uint flags) { int error; if (!XFS_IS_QUOTA_ON(mp)) - return (0); + return 0; + if (XFS_IS_PQUOTA_ON(mp)) + flags |= XFS_QMOPT_ENOSPC; ASSERT(ip->i_ino != mp->m_sb.sb_uquotino); ASSERT(ip->i_ino != mp->m_sb.sb_gquotino); ASSERT(XFS_ISLOCKED_INODE_EXCL(ip)); ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount)); - ASSERT((type & ~XFS_QMOPT_FORCE_RES) == XFS_TRANS_DQ_RES_RTBLKS || - (type & ~XFS_QMOPT_FORCE_RES) == XFS_TRANS_DQ_RES_BLKS); + ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == + XFS_TRANS_DQ_RES_RTBLKS || + (flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == + XFS_TRANS_DQ_RES_BLKS); /* * Reserve nblks against these dquots, with trans as the mediator. @@ -845,8 +849,8 @@ xfs_trans_reserve_quota_nblks( error = xfs_trans_reserve_quota_bydquots(tp, mp, ip->i_udquot, ip->i_gdquot, nblks, ninos, - type); - return (error); + flags); + return error; } /* |