fs/zfs/zfs_sa.c

0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum/*
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * CDDL HEADER START
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum *
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0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * You may not use this file except in compliance with the License.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum *
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * or http://www.opensolaris.org/os/licensing.
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0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum *
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0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum/*
8f2529de2d60d4fff8eb4d86f71b51584342934eMark Shellenbaum * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
bc9014e6a81272073b9854d9f65dd59e18d18c35Justin Gibbs#include <sys/zfs_context.h>
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum#include <sys/vnode.h>
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum#include <sys/sa.h>
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum#include <sys/zfs_acl.h>
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum#include <sys/zfs_sa.h>
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum/*
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * ZPL attribute registration table.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * Order of attributes doesn't matter
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * a unique value will be assigned for each
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * attribute that is file system specific
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum *
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * This is just the set of ZPL attributes that this
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * version of ZFS deals with natively.  The file system
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * could have other attributes stored in files, but they will be
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * ignored.  The SA framework will preserve them, just that
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * this version of ZFS won't change or delete them.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumsa_attr_reg_t zfs_attr_table[ZPL_END+1] = {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_ATIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 0},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_MTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 1},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_CTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 2},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_CRTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 3},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_GEN", sizeof (uint64_t), SA_UINT64_ARRAY, 4},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_MODE", sizeof (uint64_t), SA_UINT64_ARRAY, 5},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_SIZE", sizeof (uint64_t), SA_UINT64_ARRAY, 6},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_PARENT", sizeof (uint64_t), SA_UINT64_ARRAY, 7},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_LINKS", sizeof (uint64_t), SA_UINT64_ARRAY, 8},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_XATTR", sizeof (uint64_t), SA_UINT64_ARRAY, 9},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_RDEV", sizeof (uint64_t), SA_UINT64_ARRAY, 10},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_FLAGS", sizeof (uint64_t), SA_UINT64_ARRAY, 11},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_UID", sizeof (uint64_t), SA_UINT64_ARRAY, 12},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_GID", sizeof (uint64_t), SA_UINT64_ARRAY, 13},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_PAD", sizeof (uint64_t) * 4, SA_UINT64_ARRAY, 14},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_ZNODE_ACL", 88, SA_UINT8_ARRAY, 15},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_DACL_COUNT", sizeof (uint64_t), SA_UINT64_ARRAY, 0},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_SYMLINK", 0, SA_UINT8_ARRAY, 0},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_SCANSTAMP", 32, SA_UINT8_ARRAY, 0},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {"ZPL_DACL_ACES", 0, SA_ACL, 0},
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    {NULL, 0, 0, 0}
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum};
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum#ifdef _KERNEL
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumint
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumzfs_sa_readlink(znode_t *zp, uio_t *uio)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum{
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    size_t bufsz;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    int error;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    bufsz = zp->z_size;
faba5ca127d654dc58b6b404baa433f9548624b5Mark Shellenbaum    if (bufsz + ZFS_OLD_ZNODE_PHYS_SIZE <= db->db_size) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        error = uiomove((caddr_t)db->db_data +
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            ZFS_OLD_ZNODE_PHYS_SIZE,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            MIN((size_t)bufsz, uio->uio_resid), UIO_READ, uio);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    } else {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        dmu_buf_t *dbp;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        if ((error = dmu_buf_hold(zp->z_zfsvfs->z_os, zp->z_id,
47cb52daa729f19e298c85a84e8df069365c5232Jeff Bonwick            0, FTAG, &dbp, DMU_READ_NO_PREFETCH)) == 0) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            error = uiomove(dbp->db_data,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum                MIN((size_t)bufsz, uio->uio_resid), UIO_READ, uio);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            dmu_buf_rele(dbp, FTAG);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        }
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    }
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    return (error);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum}
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumvoid
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumzfs_sa_symlink(znode_t *zp, char *link, int len, dmu_tx_t *tx)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum{
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    if (ZFS_OLD_ZNODE_PHYS_SIZE + len <= dmu_bonus_max()) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        VERIFY(dmu_set_bonus(db,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            len + ZFS_OLD_ZNODE_PHYS_SIZE, tx) == 0);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        if (len) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            bcopy(link, (caddr_t)db->db_data +
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum                ZFS_OLD_ZNODE_PHYS_SIZE, len);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        }
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    } else {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        dmu_buf_t *dbp;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        zfs_grow_blocksize(zp, len, tx);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        VERIFY(0 == dmu_buf_hold(zp->z_zfsvfs->z_os,
47cb52daa729f19e298c85a84e8df069365c5232Jeff Bonwick            zp->z_id, 0, FTAG, &dbp, DMU_READ_NO_PREFETCH));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        dmu_buf_will_dirty(dbp, tx);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        ASSERT3U(len, <=, dbp->db_size);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        bcopy(link, dbp->db_data, len);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        dmu_buf_rele(dbp, FTAG);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    }
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum}
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumvoid
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumzfs_sa_get_scanstamp(znode_t *zp, xvattr_t *xvap)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum{
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    zfsvfs_t *zfsvfs = zp->z_zfsvfs;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    xoptattr_t *xoap;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum    ASSERT(MUTEX_HELD(&zp->z_lock));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    VERIFY((xoap = xva_getxoptattr(xvap)) != NULL);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    if (zp->z_is_sa) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        if (sa_lookup(zp->z_sa_hdl, SA_ZPL_SCANSTAMP(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            &xoap->xoa_av_scanstamp,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            sizeof (xoap->xoa_av_scanstamp)) != 0)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            return;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    } else {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        dmu_object_info_t doi;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        int len;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        if (!(zp->z_pflags & ZFS_BONUS_SCANSTAMP))
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            return;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        sa_object_info(zp->z_sa_hdl, &doi);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        len = sizeof (xoap->xoa_av_scanstamp) +
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            ZFS_OLD_ZNODE_PHYS_SIZE;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        if (len <= doi.doi_bonus_size) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            (void) memcpy(xoap->xoa_av_scanstamp,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum                (caddr_t)db->db_data + ZFS_OLD_ZNODE_PHYS_SIZE,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum                sizeof (xoap->xoa_av_scanstamp));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        }
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    }
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    XVA_SET_RTN(xvap, XAT_AV_SCANSTAMP);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum}
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumvoid
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumzfs_sa_set_scanstamp(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum{
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    zfsvfs_t *zfsvfs = zp->z_zfsvfs;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    xoptattr_t *xoap;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum    ASSERT(MUTEX_HELD(&zp->z_lock));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    VERIFY((xoap = xva_getxoptattr(xvap)) != NULL);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    if (zp->z_is_sa)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_SCANSTAMP(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            &xoap->xoa_av_scanstamp,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            sizeof (xoap->xoa_av_scanstamp), tx));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    else {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        dmu_object_info_t doi;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        int len;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        sa_object_info(zp->z_sa_hdl, &doi);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        len = sizeof (xoap->xoa_av_scanstamp) +
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            ZFS_OLD_ZNODE_PHYS_SIZE;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        if (len > doi.doi_bonus_size)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            VERIFY(dmu_set_bonus(db, len, tx) == 0);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        (void) memcpy((caddr_t)db->db_data + ZFS_OLD_ZNODE_PHYS_SIZE,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            xoap->xoa_av_scanstamp, sizeof (xoap->xoa_av_scanstamp));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        zp->z_pflags |= ZFS_BONUS_SCANSTAMP;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_FLAGS(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            &zp->z_pflags, sizeof (uint64_t), tx));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    }
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum}
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum/*
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * I'm not convinced we should do any of this upgrade.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * since the SA code can read both old/new znode formats
f7170741490edba9d1d9c697c177c887172bc741Will Andrews * with probably little to no performance difference.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum *
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * All new files will be created with the new format.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumvoid
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumzfs_sa_upgrade(sa_handle_t *hdl, dmu_tx_t *tx)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum{
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    dmu_buf_t *db = sa_get_db(hdl);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    znode_t *zp = sa_get_userdata(hdl);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    zfsvfs_t *zfsvfs = zp->z_zfsvfs;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    sa_bulk_attr_t bulk[20];
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    int count = 0;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    sa_bulk_attr_t sa_attrs[20] = { 0 };
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    zfs_acl_locator_cb_t locate = { 0 };
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    uint64_t uid, gid, mode, rdev, xattr, parent;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    uint64_t crtime[2], mtime[2], ctime[2];
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    zfs_acl_phys_t znode_acl;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    char scanstamp[AV_SCANSTAMP_SZ];
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum    boolean_t drop_lock = B_FALSE;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    /*
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum     * No upgrade if ACL isn't cached
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum     * since we won't know which locks are held
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum     * and ready the ACL would require special "locked"
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum     * interfaces that would be messy
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum     */
06e0070d70ba2ee95f5aa2645423eb2cf1546788Mark Shellenbaum    if (zp->z_acl_cached == NULL || ZTOV(zp)->v_type == VLNK)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        return;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum    /*
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum     * If the z_lock is held and we aren't the owner
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum     * the just return since we don't want to deadlock
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum     * trying to update the status of z_is_sa.  This
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum     * file can then be upgraded at a later time.
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum     *
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum     * Otherwise, we know we are doing the
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum     * sa_update() that caused us to enter this function.
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum     */
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum    if (mutex_owner(&zp->z_lock) != curthread) {
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum        if (mutex_tryenter(&zp->z_lock) == 0)
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum            return;
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum        else
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum            drop_lock = B_TRUE;
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum    }
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    /* First do a bulk query of the attributes that aren't cached */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, &mtime, 16);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, &ctime, 16);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CRTIME(zfsvfs), NULL, &crtime, 16);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, &mode, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_PARENT(zfsvfs), NULL, &parent, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_XATTR(zfsvfs), NULL, &xattr, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_RDEV(zfsvfs), NULL, &rdev, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL, &uid, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL, &gid, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ZNODE_ACL(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        &znode_acl, 88);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    if (sa_bulk_lookup_locked(hdl, bulk, count) != 0)
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum        goto done;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    /*
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum     * While the order here doesn't matter its best to try and organize
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum     * it is such a way to pick up an already existing layout number
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum     */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    count = 0;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_MODE(zfsvfs), NULL, &mode, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_SIZE(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        &zp->z_size, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_GEN(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        NULL, &zp->z_gen, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_UID(zfsvfs), NULL, &uid, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_GID(zfsvfs), NULL, &gid, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_PARENT(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        NULL, &parent, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_FLAGS(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        &zp->z_pflags, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_ATIME(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        zp->z_atime, 16);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_MTIME(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        &mtime, 16);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_CTIME(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        &ctime, 16);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_CRTIME(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        &crtime, 16);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_LINKS(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        &zp->z_links, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    if (zp->z_vnode->v_type == VBLK || zp->z_vnode->v_type == VCHR)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_RDEV(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            &rdev, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_DACL_COUNT(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        &zp->z_acl_cached->z_acl_count, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    if (zp->z_acl_cached->z_version < ZFS_ACL_VERSION_FUID)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        zfs_acl_xform(zp, zp->z_acl_cached, CRED());
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    locate.cb_aclp = zp->z_acl_cached;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_DACL_ACES(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        zfs_acl_data_locator, &locate, zp->z_acl_cached->z_acl_bytes);
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    if (xattr)
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum        SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_XATTR(zfsvfs),
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum            NULL, &xattr, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    /* if scanstamp then add scanstamp */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    if (zp->z_pflags & ZFS_BONUS_SCANSTAMP) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        bcopy((caddr_t)db->db_data + ZFS_OLD_ZNODE_PHYS_SIZE,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            scanstamp, AV_SCANSTAMP_SZ);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_SCANSTAMP(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            NULL, scanstamp, AV_SCANSTAMP_SZ);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        zp->z_pflags &= ~ZFS_BONUS_SCANSTAMP;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    }
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    VERIFY(dmu_set_bonustype(db, DMU_OT_SA, tx) == 0);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    VERIFY(sa_replace_all_by_template_locked(hdl, sa_attrs,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        count, tx) == 0);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    if (znode_acl.z_acl_extern_obj)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        VERIFY(0 == dmu_object_free(zfsvfs->z_os,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            znode_acl.z_acl_extern_obj, tx));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    zp->z_is_sa = B_TRUE;
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaumdone:
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum    if (drop_lock)
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum        mutex_exit(&zp->z_lock);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum}
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumvoid
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumzfs_sa_upgrade_txholds(dmu_tx_t *tx, znode_t *zp)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum{
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    if (!zp->z_zfsvfs->z_use_sa || zp->z_is_sa)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum        return;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum    if (zfs_external_acl(zp)) {
1412a1a223b7a94990edf5114c108b0a29c3f881Mark Shellenbaum        dmu_tx_hold_free(tx, zfs_external_acl(zp), 0,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum            DMU_OBJECT_END);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum    }
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum}
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum#endif