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4c233b5c4f
Currently, online scrub reuses the xfs_readdir code to walk every entry in a directory. This isn't awesome for performance, since we end up cycling the directory ILOCK needlessly and coding around the particular quirks of the VFS dir_context interface. Create a streamlined version of readdir that keeps the ILOCK (since the walk function isn't going to copy stuff to userspace), skips a whole lot of directory walk cursor checks (since we start at 0 and walk to the end) and has a sane way to return error codes. Note: Porting the dotdot checking code is left for a subsequent patch. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com>
20 lines
640 B
C
20 lines
640 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2022-2023 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <djwong@kernel.org>
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*/
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#ifndef __XFS_SCRUB_READDIR_H__
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#define __XFS_SCRUB_READDIR_H__
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typedef int (*xchk_dirent_fn)(struct xfs_scrub *sc, struct xfs_inode *dp,
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xfs_dir2_dataptr_t dapos, const struct xfs_name *name,
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xfs_ino_t ino, void *priv);
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int xchk_dir_walk(struct xfs_scrub *sc, struct xfs_inode *dp,
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xchk_dirent_fn dirent_fn, void *priv);
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int xchk_dir_lookup(struct xfs_scrub *sc, struct xfs_inode *dp,
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const struct xfs_name *name, xfs_ino_t *ino);
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#endif /* __XFS_SCRUB_READDIR_H__ */
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