xfs: only set extent size hint when asked
Currently the extent size hint is set unconditionally in xfs_ioctl_setattr() when the FSX_EXTSIZE flag is set. Hence we can set hints when the inode flags indicating the hint should be used are not set. Hence only set the extent size hint from userspace when the inode has the XFS_DIFLAG_EXTSIZE flag set to indicate that we should have an extent size hint set on the inode. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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@ -1231,13 +1231,25 @@ xfs_ioctl_setattr(
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}
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if (mask & FSX_EXTSIZE)
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ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog;
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if (mask & FSX_XFLAGS) {
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xfs_set_diflags(ip, fa->fsx_xflags);
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xfs_diflags_to_linux(ip);
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}
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/*
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* Only set the extent size hint if we've already determined that the
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* extent size hint should be set on the inode. If no extent size flags
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* are set on the inode then unconditionally clear the extent size hint.
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*/
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if (mask & FSX_EXTSIZE) {
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int extsize = 0;
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if (ip->i_d.di_flags &
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(XFS_DIFLAG_EXTSIZE | XFS_DIFLAG_EXTSZINHERIT))
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extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog;
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ip->i_d.di_extsize = extsize;
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}
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xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
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xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
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