From 29a17c00d4b1b8eab61b85b71cb5a83455a7dc5e Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 2 Feb 2015 10:14:25 +1100 Subject: [PATCH] xfs: separate xflags from xfs_ioctl_setattr The setting of the extended flags is down through two separate interfaces, but they are munged together into xfs_ioctl_setattr and make that function far more complex than it needs to be. Separate it out into a helper function along with all the other common inode changes and transaction manipulations in xfs_ioctl_setattr(). Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner --- fs/xfs/xfs_ioctl.c | 89 +++++++++++++++++++++------------------------- 1 file changed, 41 insertions(+), 48 deletions(-) diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 0c0e74f314a6..b0064bdb7a6e 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1013,6 +1013,44 @@ xfs_diflags_to_linux( inode->i_flags &= ~S_NOATIME; } +static int +xfs_ioctl_setattr_xflags( + struct xfs_trans *tp, + struct xfs_inode *ip, + struct fsxattr *fa) +{ + struct xfs_mount *mp = ip->i_mount; + + /* Can't change realtime flag if any extents are allocated. */ + if ((ip->i_d.di_nextents || ip->i_delayed_blks) && + XFS_IS_REALTIME_INODE(ip) != (fa->fsx_xflags & XFS_XFLAG_REALTIME)) + return -EINVAL; + + /* If realtime flag is set then must have realtime device */ + if (fa->fsx_xflags & XFS_XFLAG_REALTIME) { + if (mp->m_sb.sb_rblocks == 0 || mp->m_sb.sb_rextsize == 0 || + (ip->i_d.di_extsize % mp->m_sb.sb_rextsize)) + return -EINVAL; + } + + /* + * Can't modify an immutable/append-only file unless + * we have appropriate permission. + */ + if (((ip->i_d.di_flags & (XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND)) || + (fa->fsx_xflags & (XFS_XFLAG_IMMUTABLE | XFS_XFLAG_APPEND))) && + !capable(CAP_LINUX_IMMUTABLE)) + return -EPERM; + + xfs_trans_ijoin(tp, ip, 0); + xfs_set_diflags(ip, fa->fsx_xflags); + xfs_diflags_to_linux(ip); + xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG); + xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); + XFS_STATS_INC(xs_ig_attrchg); + return 0; +} + #define FSX_PROJID 1 #define FSX_EXTSIZE 2 #define FSX_XFLAGS 4 @@ -1159,44 +1197,9 @@ xfs_ioctl_setattr( } - if (mask & FSX_XFLAGS) { - /* - * Can't change realtime flag if any extents are allocated. - */ - if ((ip->i_d.di_nextents || ip->i_delayed_blks) && - (XFS_IS_REALTIME_INODE(ip)) != - (fa->fsx_xflags & XFS_XFLAG_REALTIME)) { - code = -EINVAL; /* EFBIG? */ - goto error_return; - } - - /* - * If realtime flag is set then must have realtime data. - */ - if ((fa->fsx_xflags & XFS_XFLAG_REALTIME)) { - if ((mp->m_sb.sb_rblocks == 0) || - (mp->m_sb.sb_rextsize == 0) || - (ip->i_d.di_extsize % mp->m_sb.sb_rextsize)) { - code = -EINVAL; - goto error_return; - } - } - - /* - * Can't modify an immutable/append-only file unless - * we have appropriate permission. - */ - if ((ip->i_d.di_flags & - (XFS_DIFLAG_IMMUTABLE|XFS_DIFLAG_APPEND) || - (fa->fsx_xflags & - (XFS_XFLAG_IMMUTABLE | XFS_XFLAG_APPEND))) && - !capable(CAP_LINUX_IMMUTABLE)) { - code = -EPERM; - goto error_return; - } - } - - xfs_trans_ijoin(tp, ip, 0); + code = xfs_ioctl_setattr_xflags(tp, ip, fa); + if (code) + goto error_return; /* * Change file ownership. Must be the owner or privileged. @@ -1227,11 +1230,6 @@ xfs_ioctl_setattr( } - if (mask & FSX_XFLAGS) { - xfs_set_diflags(ip, fa->fsx_xflags); - xfs_diflags_to_linux(ip); - } - /* * Only set the extent size hint if we've already determined that the * extent size hint should be set on the inode. If no extent size flags @@ -1246,11 +1244,6 @@ xfs_ioctl_setattr( ip->i_d.di_extsize = extsize; } - xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG); - xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); - - XFS_STATS_INC(xs_ig_attrchg); - /* * If this is a synchronous mount, make sure that the * transaction goes to disk before returning to the user. -- 2.39.5