File Manager

003 File Manager

Current Path: /usr/src/sys/contrib/openzfs/include/sys

usr / src / sys / contrib / openzfs / include / sys /

📁 ..
📄 Makefile.am(2.18 KB)
📄 abd.h(4.25 KB)
📄 abd_impl.h(4.41 KB)
📄 aggsum.h(1.28 KB)
📄 arc.h(11.19 KB)
📄 arc_impl.h(33.15 KB)
📄 avl.h(9.16 KB)
📄 avl_impl.h(4.8 KB)
📄 bitops.h(3.2 KB)
📄 blkptr.h(914 B)
📄 bplist.h(1.6 KB)
📄 bpobj.h(3.21 KB)
📄 bptree.h(1.89 KB)
📄 bqueue.h(1.23 KB)
📄 btree.h(7.68 KB)
📁 crypto
📄 dataset_kstats.h(2.27 KB)
📄 dbuf.h(13.94 KB)
📄 ddt.h(7.96 KB)
📄 dmu.h(39.06 KB)
📄 dmu_impl.h(6.92 KB)
📄 dmu_objset.h(9.19 KB)
📄 dmu_recv.h(2.75 KB)
📄 dmu_redact.h(1.67 KB)
📄 dmu_send.h(2.54 KB)
📄 dmu_traverse.h(3.02 KB)
📄 dmu_tx.h(4.43 KB)
📄 dmu_zfetch.h(2.23 KB)
📄 dnode.h(22.41 KB)
📄 dsl_bookmark.h(5.05 KB)
📄 dsl_crypt.h(7.76 KB)
📄 dsl_dataset.h(18.62 KB)
📄 dsl_deadlist.h(4.21 KB)
📄 dsl_deleg.h(3.27 KB)
📄 dsl_destroy.h(2.19 KB)
📄 dsl_dir.h(7.67 KB)
📄 dsl_pool.h(6.23 KB)
📄 dsl_prop.h(4.38 KB)
📄 dsl_scan.h(7.11 KB)
📄 dsl_synctask.h(4.06 KB)
📄 dsl_userhold.h(1.84 KB)
📄 edonr.h(2.65 KB)
📄 efi_partition.h(16.28 KB)
📁 fm
📄 frame.h(935 B)
📁 fs
📄 hkdf.h(782 B)
📁 lua
📄 metaslab.h(5.48 KB)
📄 metaslab_impl.h(21.23 KB)
📄 mmp.h(2.37 KB)
📄 mntent.h(5.22 KB)
📄 mod.h(1.26 KB)
📄 multilist.h(3.27 KB)
📄 note.h(1.62 KB)
📄 nvpair.h(14.77 KB)
📄 nvpair_impl.h(2.23 KB)
📄 objlist.h(1.13 KB)
📄 pathname.h(2.12 KB)
📄 qat.h(5.86 KB)
📄 range_tree.h(9.73 KB)
📄 rrwlock.h(3.53 KB)
📄 sa.h(5.14 KB)
📄 sa_impl.h(8.29 KB)
📄 skein.h(6.69 KB)
📄 spa.h(46.07 KB)
📄 spa_boot.h(1.16 KB)
📄 spa_checkpoint.h(1.44 KB)
📄 spa_checksum.h(1.96 KB)
📄 spa_impl.h(18.25 KB)
📄 spa_log_spacemap.h(2.62 KB)
📄 space_map.h(8.7 KB)
📄 space_reftree.h(1.69 KB)
📁 sysevent
📄 sysevent.h(1.07 KB)
📄 txg.h(4.66 KB)
📄 txg_impl.h(4.77 KB)
📄 u8_textprep.h(3.59 KB)
📄 u8_textprep_data.h(1.41 MB)
📄 uberblock.h(1.36 KB)
📄 uberblock_impl.h(5.11 KB)
📄 uio_impl.h(1.58 KB)
📄 unique.h(1.56 KB)
📄 uuid.h(2.85 KB)
📄 vdev.h(8.18 KB)
📄 vdev_disk.h(1.65 KB)
📄 vdev_draid.h(3.43 KB)
📄 vdev_file.h(1.23 KB)
📄 vdev_impl.h(22.53 KB)
📄 vdev_indirect_births.h(2.31 KB)
📄 vdev_indirect_mapping.h(4.38 KB)
📄 vdev_initialize.h(1.39 KB)
📄 vdev_raidz.h(2.04 KB)
📄 vdev_raidz_impl.h(10.54 KB)
📄 vdev_rebuild.h(3.4 KB)
📄 vdev_removal.h(2.63 KB)
📄 vdev_trim.h(1.72 KB)
📄 xvattr.h(13.1 KB)
📄 zap.h(18.63 KB)
📄 zap_impl.h(6.79 KB)
📄 zap_leaf.h(7.84 KB)
📄 zcp.h(4.87 KB)
📄 zcp_global.h(742 B)
📄 zcp_iter.h(1.07 KB)
📄 zcp_prop.h(780 B)
📄 zcp_set.h(929 B)
📄 zfeature.h(2.42 KB)
📄 zfs_acl.h(8.08 KB)
📄 zfs_bootenv.h(1.41 KB)
📄 zfs_context.h(21.23 KB)
📄 zfs_debug.h(3.3 KB)
📄 zfs_delay.h(1.25 KB)
📄 zfs_file.h(2.06 KB)
📄 zfs_fuid.h(4.26 KB)
📄 zfs_ioctl.h(17.63 KB)
📄 zfs_ioctl_impl.h(3.1 KB)
📄 zfs_onexit.h(1.65 KB)
📄 zfs_project.h(2.35 KB)
📄 zfs_quota.h(1.57 KB)
📄 zfs_racct.h(1.12 KB)
📄 zfs_ratelimit.h(1.11 KB)
📄 zfs_refcount.h(4.15 KB)
📄 zfs_rlock.h(2.54 KB)
📄 zfs_sa.h(4.38 KB)
📄 zfs_stat.h(1.45 KB)
📄 zfs_sysfs.h(1.49 KB)
📄 zfs_vfsops.h(1.05 KB)
📄 zfs_vnops.h(2 KB)
📄 zfs_znode.h(10.93 KB)
📄 zil.h(18.27 KB)
📄 zil_impl.h(9.12 KB)
📄 zio.h(21.68 KB)
📄 zio_checksum.h(4.55 KB)
📄 zio_compress.h(5.91 KB)
📄 zio_crypt.h(5.21 KB)
📄 zio_impl.h(8.33 KB)
📄 zio_priority.h(1.2 KB)
📄 zrlock.h(1.7 KB)
📁 zstd
📄 zthr.h(1.23 KB)
📄 zvol.h(2.27 KB)
📄 zvol_impl.h(3.7 KB)

Editing: abd_impl.h

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 2014 by Chunwei Chen. All rights reserved.
 * Copyright (c) 2016, 2019 by Delphix. All rights reserved.
 */

#ifndef _ABD_IMPL_H
#define	_ABD_IMPL_H

#include <sys/abd.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef enum abd_flags {
	ABD_FLAG_LINEAR		= 1 << 0, /* is buffer linear (or scattered)? */
	ABD_FLAG_OWNER		= 1 << 1, /* does it own its data buffers? */
	ABD_FLAG_META		= 1 << 2, /* does this represent FS metadata? */
	ABD_FLAG_MULTI_ZONE  	= 1 << 3, /* pages split over memory zones */
	ABD_FLAG_MULTI_CHUNK 	= 1 << 4, /* pages split over multiple chunks */
	ABD_FLAG_LINEAR_PAGE 	= 1 << 5, /* linear but allocd from page */
	ABD_FLAG_GANG		= 1 << 6, /* mult ABDs chained together */
	ABD_FLAG_GANG_FREE	= 1 << 7, /* gang ABD is responsible for mem */
	ABD_FLAG_ZEROS		= 1 << 8, /* ABD for zero-filled buffer */
} abd_flags_t;

typedef enum abd_stats_op {
	ABDSTAT_INCR, /* Increase abdstat values */
	ABDSTAT_DECR  /* Decrease abdstat values */
} abd_stats_op_t;

struct abd {
	abd_flags_t	abd_flags;
	uint_t		abd_size;	/* excludes scattered abd_offset */
	list_node_t	abd_gang_link;
	struct abd	*abd_parent;
	zfs_refcount_t	abd_children;
	kmutex_t	abd_mtx;
	union {
		struct abd_scatter {
			uint_t		abd_offset;
#if defined(__FreeBSD__) && defined(_KERNEL)
			uint_t  abd_chunk_size;
			void    *abd_chunks[];
#else
			uint_t		abd_nents;
			struct scatterlist *abd_sgl;
#endif
		} abd_scatter;
		struct abd_linear {
			void		*abd_buf;
			struct scatterlist *abd_sgl; /* for LINEAR_PAGE */
		} abd_linear;
		struct abd_gang {
			list_t abd_gang_chain;
		} abd_gang;
	} abd_u;
};

struct scatterlist; /* forward declaration */

struct abd_iter {
	/* public interface */
	void		*iter_mapaddr;	/* addr corresponding to iter_pos */
	size_t		iter_mapsize;	/* length of data valid at mapaddr */

/* private */
	abd_t		*iter_abd;	/* ABD being iterated through */
	size_t		iter_pos;
	size_t		iter_offset;	/* offset in current sg/abd_buf, */
					/* abd_offset included */
	struct scatterlist *iter_sg;	/* current sg */
};

extern abd_t *abd_zero_scatter;

abd_t *abd_gang_get_offset(abd_t *, size_t *);

/*
 * OS specific functions
 */

abd_t *abd_alloc_struct(size_t);
abd_t *abd_get_offset_scatter(abd_t *, size_t);
void abd_free_struct(abd_t *);
void abd_alloc_chunks(abd_t *, size_t);
void abd_free_chunks(abd_t *);
boolean_t abd_size_alloc_linear(size_t);
void abd_update_scatter_stats(abd_t *, abd_stats_op_t);
void abd_update_linear_stats(abd_t *, abd_stats_op_t);
void abd_verify_scatter(abd_t *);
void abd_free_linear_page(abd_t *);
/* OS specific abd_iter functions */
void abd_iter_init(struct abd_iter  *, abd_t *);
boolean_t abd_iter_at_end(struct abd_iter *);
void abd_iter_advance(struct abd_iter *, size_t);
void abd_iter_map(struct abd_iter *);
void abd_iter_unmap(struct abd_iter *);

/*
 * Helper macros
 */
#define	ABDSTAT(stat)		(abd_stats.stat.value.ui64)
#define	ABDSTAT_INCR(stat, val) \
	atomic_add_64(&abd_stats.stat.value.ui64, (val))
#define	ABDSTAT_BUMP(stat)	ABDSTAT_INCR(stat, 1)
#define	ABDSTAT_BUMPDOWN(stat)	ABDSTAT_INCR(stat, -1)

#define	ABD_SCATTER(abd)	(abd->abd_u.abd_scatter)
#define	ABD_LINEAR_BUF(abd)	(abd->abd_u.abd_linear.abd_buf)
#define	ABD_GANG(abd)		(abd->abd_u.abd_gang)

#if defined(_KERNEL)
#if defined(__FreeBSD__)
#define	abd_enter_critical(flags)	critical_enter()
#define	abd_exit_critical(flags)	critical_exit()
#else
#define	abd_enter_critical(flags)	local_irq_save(flags)
#define	abd_exit_critical(flags)	local_irq_restore(flags)
#endif
#else /* !_KERNEL */
#define	abd_enter_critical(flags)	((void)0)
#define	abd_exit_critical(flags)	((void)0)
#endif

#ifdef __cplusplus
}
#endif

#endif	/* _ABD_IMPL_H */

003 File Manager

Editing: abd_impl.h

Upload File

Create Folder