From 4b680afb42b9e1b504444583098401a00e63ed3c Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 8 Feb 2016 10:46:51 +1100 Subject: xfs: lock rt summary inode on allocation RT allocation can fail on a debug kernel with: XFS: Assertion failed: xfs_isilocked(ip, XFS_ILOCK_SHARED|XFS_ILOCK_EXCL), file: fs/xfs/libxfs/xfs_bmap.c, line: 4039 When modifying the summary inode during allocation. This occurs because the summary inode is never locked, and xfs_bmapi_* operations expect it to be locked. The summary inode is effectively protected byt he lock on the bitmap inode, so this really is only a debug kernel issue. Signed-off-by: Dave Chinner Tested-by: Ross Zwisler Reviewed-by: Eric Sandeen Signed-off-by: Dave Chinner --- fs/xfs/xfs_bmap_util.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'fs/xfs/xfs_bmap_util.c') diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 45ec9e40150c..07ef29b9b464 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -202,10 +202,12 @@ xfs_bmap_rtalloc( ralen = MAXEXTLEN / mp->m_sb.sb_rextsize; /* - * Lock out other modifications to the RT bitmap inode. + * Lock out modifications to both the RT bitmap and summary inodes */ xfs_ilock(mp->m_rbmip, XFS_ILOCK_EXCL); xfs_trans_ijoin(ap->tp, mp->m_rbmip, XFS_ILOCK_EXCL); + xfs_ilock(mp->m_rsumip, XFS_ILOCK_EXCL); + xfs_trans_ijoin(ap->tp, mp->m_rsumip, XFS_ILOCK_EXCL); /* * If it's an allocation to an empty file at offset 0, -- cgit v1.2.3 From c19b3b05ae440de50fffe2ac2a9b27392a7448e9 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Tue, 9 Feb 2016 16:54:58 +1100 Subject: xfs: mode di_mode to vfs inode Move the di_mode value from the xfs_icdinode to the VFS inode, reducing the xfs_icdinode byte another 2 bytes and collapsing another 2 byte hole in the structure. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner --- fs/xfs/xfs_bmap_util.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/xfs/xfs_bmap_util.c') diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 45ec9e40150c..708775613e55 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -821,7 +821,7 @@ bool xfs_can_free_eofblocks(struct xfs_inode *ip, bool force) { /* prealloc/delalloc exists only on regular files */ - if (!S_ISREG(ip->i_d.di_mode)) + if (!S_ISREG(VFS_I(ip)->i_mode)) return false; /* @@ -1726,7 +1726,7 @@ xfs_swap_extents( xfs_lock_two_inodes(ip, tip, XFS_MMAPLOCK_EXCL); /* Verify that both files have the same format */ - if ((ip->i_d.di_mode & S_IFMT) != (tip->i_d.di_mode & S_IFMT)) { + if ((VFS_I(ip)->i_mode & S_IFMT) != (VFS_I(tip)->i_mode & S_IFMT)) { error = -EINVAL; goto out_unlock; } -- cgit v1.2.3