From 07ff2fa8fcb3d9207f1c16e5acf9086d5731ed8b Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Tue, 28 Feb 2006 12:29:51 +1100 Subject: [PATCH 1/3] [XFS] Fix a realtime allocator regression introduced by an old iget race fix. Noticed by Roger Willcocks. SGI-PV: 949821 SGI-Modid: xfs-linux-melb:xfs-kern:25257a Signed-off-by: Nathan Scott --- fs/xfs/xfs_rtalloc.c | 29 ++++++++++++++--------------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 06fc061c50fc..5b413946b1c5 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -130,7 +130,8 @@ xfs_growfs_rt_alloc( /* * Lock the inode. */ - if ((error = xfs_trans_iget(mp, tp, ino, 0, XFS_ILOCK_EXCL, &ip))) + if ((error = xfs_trans_iget(mp, tp, ino, 0, + XFS_ILOCK_EXCL, &ip))) goto error_exit; XFS_BMAP_INIT(&flist, &firstblock); /* @@ -170,8 +171,8 @@ xfs_growfs_rt_alloc( /* * Lock the bitmap inode. */ - if ((error = xfs_trans_iget(mp, tp, ino, 0, XFS_ILOCK_EXCL, - &ip))) + if ((error = xfs_trans_iget(mp, tp, ino, 0, + XFS_ILOCK_EXCL, &ip))) goto error_exit; /* * Get a buffer for the block. @@ -2023,8 +2024,8 @@ xfs_growfs_rt( /* * Lock out other callers by grabbing the bitmap inode lock. */ - if ((error = xfs_trans_iget(mp, tp, 0, mp->m_sb.sb_rbmino, - XFS_ILOCK_EXCL, &ip))) + if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, + XFS_ILOCK_EXCL, &ip))) goto error_exit; ASSERT(ip == mp->m_rbmip); /* @@ -2037,8 +2038,8 @@ xfs_growfs_rt( /* * Get the summary inode into the transaction. */ - if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rsumino, - 0, XFS_ILOCK_EXCL, &ip))) + if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rsumino, 0, + XFS_ILOCK_EXCL, &ip))) goto error_exit; ASSERT(ip == mp->m_rsumip); /* @@ -2158,10 +2159,9 @@ xfs_rtallocate_extent( /* * Lock out other callers by grabbing the bitmap inode lock. */ - error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, XFS_ILOCK_EXCL, &ip); - if (error) { + if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, + XFS_ILOCK_EXCL, &ip))) return error; - } sumbp = NULL; /* * Allocate by size, or near another block, or exactly at some block. @@ -2221,10 +2221,9 @@ xfs_rtfree_extent( /* * Synchronize by locking the bitmap inode. */ - error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, XFS_ILOCK_EXCL, &ip); - if (error) { + if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, + XFS_ILOCK_EXCL, &ip))) return error; - } #if defined(__KERNEL__) && defined(DEBUG) /* * Check to see that this whole range is currently allocated. @@ -2365,8 +2364,8 @@ xfs_rtpick_extent( __uint64_t seq; /* sequence number of file creation */ __uint64_t *seqp; /* pointer to seqno in inode */ - error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, XFS_ILOCK_EXCL, &ip); - if (error) + if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, + XFS_ILOCK_EXCL, &ip))) return error; ASSERT(ip == mp->m_rbmip); seqp = (__uint64_t *)&ip->i_d.di_atime; From dae81d4774ecbeb7d24bb9a6a4db9f9baee54d85 Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Tue, 28 Feb 2006 12:30:13 +1100 Subject: [PATCH 2/3] [XFS] Reduce stack use during quota mounts (caused a panic). This regressed recently via the fix for inherited quota inode attributes. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25318a Signed-off-by: Nathan Scott --- fs/xfs/quota/xfs_qm.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c index 53a00fb217fa..7c0e39dc6189 100644 --- a/fs/xfs/quota/xfs_qm.c +++ b/fs/xfs/quota/xfs_qm.c @@ -68,6 +68,9 @@ kmem_zone_t *qm_dqzone; kmem_zone_t *qm_dqtrxzone; STATIC kmem_shaker_t xfs_qm_shaker; +STATIC cred_t xfs_zerocr; +STATIC xfs_inode_t xfs_zeroino; + STATIC void xfs_qm_list_init(xfs_dqlist_t *, char *, int); STATIC void xfs_qm_list_destroy(xfs_dqlist_t *); @@ -1393,8 +1396,6 @@ xfs_qm_qino_alloc( xfs_trans_t *tp; int error; unsigned long s; - cred_t zerocr; - xfs_inode_t zeroino; int committed; tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE); @@ -1406,11 +1407,9 @@ xfs_qm_qino_alloc( xfs_trans_cancel(tp, 0); return error; } - memset(&zerocr, 0, sizeof(zerocr)); - memset(&zeroino, 0, sizeof(zeroino)); - if ((error = xfs_dir_ialloc(&tp, &zeroino, S_IFREG, 1, 0, - &zerocr, 0, 1, ip, &committed))) { + if ((error = xfs_dir_ialloc(&tp, &xfs_zeroino, S_IFREG, 1, 0, + &xfs_zerocr, 0, 1, ip, &committed))) { xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT); return error; From 2353e8e9b6ae29aad77935f21735a30f5cc419b4 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Tue, 28 Feb 2006 12:30:30 +1100 Subject: [PATCH 3/3] [XFS] Don't map non-uptodate buffers in xfs_probe_cluster; also fixes obscure corruption case SGI-PV: 942658 SGI-Modid: xfs-linux-melb:xfs-kern:207119a Signed-off-by: Eric Sandeen Signed-off-by: Nathan Scott --- fs/xfs/linux-2.6/xfs_aops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index 8f2beec526cf..74d8be87f983 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -540,7 +540,7 @@ xfs_probe_cluster( /* First sum forwards in this page */ do { - if (mapped != buffer_mapped(bh)) + if (!buffer_uptodate(bh) || (mapped != buffer_mapped(bh))) return total; total += bh->b_size; } while ((bh = bh->b_this_page) != head);