Allow manual discards from userspace using the FITRIM ioctl. This is not intended to be run during normal workloads, as the freepsace btree walks can cause large performance degradation. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
9 lines
172 B
C
9 lines
172 B
C
#ifndef XFS_DISCARD_H
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#define XFS_DISCARD_H 1
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struct fstrim_range;
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extern int xfs_ioc_trim(struct xfs_mount *, struct fstrim_range __user *);
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#endif /* XFS_DISCARD_H */
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