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8f7747ad8c
xfs_bmap_btalloc_filestreams() calls two filestreams functions to select the AG to allocate from. Both those functions end up in the same selection function that iterates all AGs multiple times. Worst case, xfs_bmap_btalloc_filestreams() can iterate all AGs 4 times just to select the initial AG to allocate in. Move the AG selection to fs/xfs/xfs_filestreams.c as a single interface so that the inefficient AG interation is contained entirely within the filestreams code. This will allow the implementation to be simplified and made more efficient in future patches. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org>
30 lines
779 B
C
30 lines
779 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2006-2007 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_FILESTREAM_H__
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#define __XFS_FILESTREAM_H__
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struct xfs_mount;
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struct xfs_inode;
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struct xfs_bmalloca;
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struct xfs_alloc_arg;
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int xfs_filestream_mount(struct xfs_mount *mp);
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void xfs_filestream_unmount(struct xfs_mount *mp);
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void xfs_filestream_deassociate(struct xfs_inode *ip);
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int xfs_filestream_peek_ag(struct xfs_mount *mp, xfs_agnumber_t agno);
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int xfs_filestream_select_ag(struct xfs_bmalloca *ap,
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struct xfs_alloc_arg *args, xfs_extlen_t *blen);
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static inline int
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xfs_inode_is_filestream(
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struct xfs_inode *ip)
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{
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return xfs_has_filestreams(ip->i_mount) ||
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(ip->i_diflags & XFS_DIFLAG_FILESTREAM);
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}
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#endif /* __XFS_FILESTREAM_H__ */
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