From d08d389d5aef0509edba7ee42cd6c6a3998fee22 Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Mon, 8 May 2006 19:51:28 +1000 Subject: [XFS] Fix a possible forced shutdown due to mishandling write barriers with remount,ro. SGI-PV: 951944 SGI-Modid: xfs-linux-melb:xfs-kern:25742a Signed-off-by: Nathan Scott --- fs/xfs/xfs_vfsops.c | 27 +++++++++------------------ 1 file changed, 9 insertions(+), 18 deletions(-) diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c index f0e09ca14139..36ea1b2094f2 100644 --- a/fs/xfs/xfs_vfsops.c +++ b/fs/xfs/xfs_vfsops.c @@ -669,31 +669,22 @@ xfs_mntupdate( xfs_mount_t *mp = XFS_BHVTOM(bdp); int error; - if (args->flags & XFSMNT_BARRIER) - mp->m_flags |= XFS_MOUNT_BARRIER; - else - mp->m_flags &= ~XFS_MOUNT_BARRIER; - - if ((vfsp->vfs_flag & VFS_RDONLY) && - !(*flags & MS_RDONLY)) { - vfsp->vfs_flag &= ~VFS_RDONLY; - - if (args->flags & XFSMNT_BARRIER) + if (!(*flags & MS_RDONLY)) { /* rw/ro -> rw */ + if (vfsp->vfs_flag & VFS_RDONLY) + vfsp->vfs_flag &= ~VFS_RDONLY; + if (args->flags & XFSMNT_BARRIER) { + mp->m_flags |= XFS_MOUNT_BARRIER; xfs_mountfs_check_barriers(mp); - } - - if (!(vfsp->vfs_flag & VFS_RDONLY) && - (*flags & MS_RDONLY)) { + } else { + mp->m_flags &= ~XFS_MOUNT_BARRIER; + } + } else if (!(vfsp->vfs_flag & VFS_RDONLY)) { /* rw -> ro */ VFS_SYNC(vfsp, SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR, NULL, error); - xfs_quiesce_fs(mp); - - /* Ok now write out an unmount record */ xfs_log_unmount_write(mp); xfs_unmountfs_writesb(mp); vfsp->vfs_flag |= VFS_RDONLY; } - return 0; } -- cgit v1.2.2 From b1ecdda9313ec5d2f971993f44f6b657acf70cff Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Mon, 8 May 2006 19:51:42 +1000 Subject: [XFS] Fix a project quota space accounting leak on rename. SGI-PV: 951636 SGI-Modid: xfs-linux-melb:xfs-kern:25811a Signed-off-by: Nathan Scott --- fs/xfs/xfs_rename.c | 12 ++++++++++++ fs/xfs/xfs_vnodeops.c | 2 +- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c index 81a05cfd77d2..1f148762eb28 100644 --- a/fs/xfs/xfs_rename.c +++ b/fs/xfs/xfs_rename.c @@ -316,6 +316,18 @@ xfs_rename( } } + /* + * If we are using project inheritance, we only allow renames + * into our tree when the project IDs are the same; else the + * tree quota mechanism would be circumvented. + */ + if (unlikely((target_dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) && + (target_dp->i_d.di_projid != src_ip->i_d.di_projid))) { + error = XFS_ERROR(EXDEV); + xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED); + goto rele_return; + } + new_parent = (src_dp != target_dp); src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR); diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index fa71b305ba5c..7027ae68ee38 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -2663,7 +2663,7 @@ xfs_link( */ if (unlikely((tdp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) && (tdp->i_d.di_projid != sip->i_d.di_projid))) { - error = XFS_ERROR(EPERM); + error = XFS_ERROR(EXDEV); goto error_return; } -- cgit v1.2.2 From e63a3690013a475746ad2cea998ebb534d825704 Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Mon, 8 May 2006 19:51:58 +1000 Subject: [XFS] Fix a possible metadata buffer (AGFL) refcount leak when fixing an AG freelist. SGI-PV: 952681 SGI-Modid: xfs-linux-melb:xfs-kern:25902a Signed-off-by: Nathan Scott --- fs/xfs/xfs_alloc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index 64ee07db0d5e..8558226281c4 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -1942,8 +1942,10 @@ xfs_alloc_fix_freelist( /* * Allocate as many blocks as possible at once. */ - if ((error = xfs_alloc_ag_vextent(&targs))) + if ((error = xfs_alloc_ag_vextent(&targs))) { + xfs_trans_brelse(tp, agflbp); return error; + } /* * Stop if we run out. Won't happen if callers are obeying * the restrictions correctly. Can happen for free calls @@ -1960,6 +1962,7 @@ xfs_alloc_fix_freelist( return error; } } + xfs_trans_brelse(tp, agflbp); args->agbp = agbp; return 0; } -- cgit v1.2.2