fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER START
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The contents of this file are subject to the terms of the
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Common Development and Distribution License (the "License").
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * You may not use this file except in compliance with the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
fa9e4066f08beec538e775443c5be79dd423fcabahrens * See the License for the specific language governing permissions
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and limitations under the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * When distributing Covered Code, include this CDDL HEADER in each
fa9e4066f08beec538e775443c5be79dd423fcabahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If applicable, add the following below this CDDL HEADER, with the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * fields enclosed by brackets "[]" replaced with your own identifying
fa9e4066f08beec538e775443c5be79dd423fcabahrens * information: Portions Copyright [yyyy] [name of copyright owner]
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER END
8f2529de2d60d4fff8eb4d86f71b51584342934eMark Shellenbaum * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
4bb73804952172060c9efb163b89c17f56804fe8Matthew Ahrens * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
c3d26abc9ee97b4f60233556aadeb57e0bd30bb9Matthew Ahrens * Copyright (c) 2014 Integros [integros.com]
75c7619736838143dd41b3c5c9d7adec4683488fpeteh/* Portions Copyright 2007 Jeremy Teo */
55434c770c89aa1b84474f2559a106803511aba0ek#endif /* _KERNEL */
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * Define ZNODE_STATS to turn on statistic gathering. By default, it is only
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * turned on when DEBUG is also defined.
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee#endif /* DEBUG */
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee#endif /* ZNODE_STATS */
55434c770c89aa1b84474f2559a106803511aba0ek * Functions needed for userland (ie: libzpool) are not put under
55434c770c89aa1b84474f2559a106803511aba0ek * #ifdef_KERNEL; the rest of the functions have dependencies
55434c770c89aa1b84474f2559a106803511aba0ek * (such as VFS logic) that will not compile easily in userland.
4e9583b23260dab68308b306795694143381ab0fTom Erickson * Needed to close a small window in zfs_znode_move() that allows the zfsvfs to
4e9583b23260dab68308b306795694143381ab0fTom Erickson * be freed before it can be safely accessed.
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*ARGSUSED*/
874395d5f8cae2b9cd2d1fcbfcfe963a0c23966dmaybee * We should never drop all dbuf refs without first clearing
874395d5f8cae2b9cd2d1fcbfcfe963a0c23966dmaybee * the eviction callback.
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*ARGSUSED*/
b5fca8f855054d167d04d3b4de5210c83ed2083ctomeezfs_znode_cache_constructor(void *buf, void *arg, int kmflags)
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee return (-1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens mutex_init(&zp->z_acl_lock, NULL, MUTEX_DEFAULT, NULL);
104e2ed78d9ef0a0f89f320108b8ca29ca3850d5perrin mutex_init(&zp->z_range_lock, NULL, MUTEX_DEFAULT, NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*ARGSUSED*/
b5fca8f855054d167d04d3b4de5210c83ed2083ctomeestatic struct {
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee#endif /* ZNODE_STATS */
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee /* Copy fields. */
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee /* Swap vnodes. */
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee ozp->z_vnode = vp; /* let destructor free the overwritten vnode */
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee ASSERT(ozp->z_dirlocks == NULL); /* znode not in use */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum bcopy(ozp->z_atime, nzp->z_atime, sizeof (uint64_t) * 2);
6638ae1dc32acc370fecf2c4ce2e588f1183dd6eMark Shellenbaum * Since this is just an idle znode and kmem is already dealing with
6638ae1dc32acc370fecf2c4ce2e588f1183dd6eMark Shellenbaum * memory pressure, release any cached ACL.
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * Invalidate the original znode by clearing fields that provide a
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * pointer back to the znode. Set the low bit of the vfs pointer to
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * ensure that zfs_znode_move() recognizes the znode as invalid in any
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * subsequent callback.
744947dc83c634d985ed3ad79ac9c5e28d1865fdTom Erickson * Mark the znode.
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee/*ARGSUSED*/
b5fca8f855054d167d04d3b4de5210c83ed2083ctomeezfs_znode_move(void *buf, void *newbuf, size_t size, void *arg)
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * The znode is on the file system's list of known znodes if the vfs
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * pointer is valid. We set the low bit of the vfs pointer when freeing
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * the znode to invalidate it, and the memory patterns written by kmem
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * (baddcafe and deadbeef) set at least one of the two low bits. A newly
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * created znode sets the vfs pointer last of all to indicate that the
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * znode is known and in a valid state to be moved by this function.
4e9583b23260dab68308b306795694143381ab0fTom Erickson * Close a small window in which it's possible that the filesystem could
4e9583b23260dab68308b306795694143381ab0fTom Erickson * be unmounted and freed, and zfsvfs, though valid in the previous
4e9583b23260dab68308b306795694143381ab0fTom Erickson * statement, could point to unrelated memory by the time we try to
4e9583b23260dab68308b306795694143381ab0fTom Erickson * prevent the filesystem from being unmounted.
4e9583b23260dab68308b306795694143381ab0fTom Erickson ZNODE_STAT_ADD(znode_move_stats.zms_zfsvfs_recheck1);
4e9583b23260dab68308b306795694143381ab0fTom Erickson * If the znode is still valid, then so is the file system. We know that
4e9583b23260dab68308b306795694143381ab0fTom Erickson * no valid file system can be freed while we hold zfsvfs_lock, so we
4e9583b23260dab68308b306795694143381ab0fTom Erickson * can safely ensure that the filesystem is not and will not be
4e9583b23260dab68308b306795694143381ab0fTom Erickson * unmounted. The next statement is equivalent to ZFS_ENTER().
c9030f6c93613fe30ee0c16f92b96da7816ac052Alexander Motin rrm_enter(&zfsvfs->z_teardown_lock, RW_READER, FTAG);
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee ZNODE_STAT_ADD(znode_move_stats.zms_zfsvfs_unmounted);
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * Recheck the vfs pointer in case the znode was removed just before
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * acquiring the lock.
4e9583b23260dab68308b306795694143381ab0fTom Erickson ZNODE_STAT_ADD(znode_move_stats.zms_zfsvfs_recheck2);
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * At this point we know that as long as we hold z_znodes_lock, the
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * znode cannot be freed and fields within the znode can be safely
a66b2b3504619207b55d222c87bdd9df52832f15Tom Erickson * accessed. Now, prevent a race with zfs_zget().
a66b2b3504619207b55d222c87bdd9df52832f15Tom Erickson if (ZFS_OBJ_HOLD_TRYENTER(zfsvfs, ozp->z_id) == 0) {
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee /* Only move znodes that are referenced _only_ by the DNLC. */
a66b2b3504619207b55d222c87bdd9df52832f15Tom Erickson ZNODE_STAT_ADD(znode_move_stats.zms_not_only_dnlc);
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * The znode is known and in a valid state to move. We're holding the
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * locks needed to execute the critical section.
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee list_link_replace(&ozp->z_link_node, &nzp->z_link_node);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Initialize zcache
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Cleanup vfs & vnode ops
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Cleanup zcache
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Remove vfs ops
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Remove vnode ops
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern const fs_operation_def_t zfs_dvnodeops_template[];
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern const fs_operation_def_t zfs_fvnodeops_template[];
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern const fs_operation_def_t zfs_xdvnodeops_template[];
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern const fs_operation_def_t zfs_symvnodeops_template[];
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern const fs_operation_def_t zfs_evnodeops_template[];
743a77ed89085d3c232c4a2f65ab4e19576839e2Alan Wrightextern const fs_operation_def_t zfs_sharevnodeops_template[];
fa9e4066f08beec538e775443c5be79dd423fcabahrens * zfs_dvnodeops can be set if mod_remove() calls mod_installfs()
fa9e4066f08beec538e775443c5be79dd423fcabahrens * due to a failure to remove the the 2nd modlinkage (zfs_modldrv).
fa9e4066f08beec538e775443c5be79dd423fcabahrens * In this case we just return as the ops vectors are already set up.
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens error = vn_make_ops(MNTTYPE_ZFS, zfs_dvnodeops_template,
fa9e4066f08beec538e775443c5be79dd423fcabahrens error = vn_make_ops(MNTTYPE_ZFS, zfs_fvnodeops_template,
fa9e4066f08beec538e775443c5be79dd423fcabahrens error = vn_make_ops(MNTTYPE_ZFS, zfs_symvnodeops_template,
fa9e4066f08beec538e775443c5be79dd423fcabahrens error = vn_make_ops(MNTTYPE_ZFS, zfs_xdvnodeops_template,
fa9e4066f08beec538e775443c5be79dd423fcabahrens error = vn_make_ops(MNTTYPE_ZFS, zfs_evnodeops_template,
743a77ed89085d3c232c4a2f65ab4e19576839e2Alan Wright error = vn_make_ops(MNTTYPE_ZFS, zfs_sharevnodeops_template,
743a77ed89085d3c232c4a2f65ab4e19576839e2Alan Wrightzfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx)
743a77ed89085d3c232c4a2f65ab4e19576839e2Alan Wright sharezp = kmem_cache_alloc(znode_cache, KM_SLEEP);
89459e17032b6bb1d59eebd2b7c0d06859d4657cMark Shellenbaum VERIFY(0 == zfs_acl_ids_create(sharezp, IS_ROOT_NODE, &vattr,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum zfs_mknode(sharezp, &vattr, tx, kcred, IS_ROOT_NODE, &zp, &acl_ids);
743a77ed89085d3c232c4a2f65ab4e19576839e2Alan Wright ASSERT(!vn_in_dnlc(ZTOV(sharezp))); /* not valid to move */
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * define a couple of values we need available
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * for both 64 and 32 bit environments.
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * Create special expldev for ZFS private use.
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * Can't use standard expldev since it doesn't do
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * what we want. The standard expldev() takes a
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * dev32_t in LP64 and expands it to a long dev_t.
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * We need an interface that takes a dev32_t in ILP32
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * and expands it to a long dev_t.
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks major_t major = (major_t)dev >> NBITSMINOR32 & MAXMAJ32;
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * Special cmpldev for ZFS private use.
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * Can't use standard cmpldev since it takes
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * a long dev_t and compresses it to dev32_t in
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * LP64. We need to do a compaction of a long dev_t
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks * to a dev32_t in ILP32.
72fc53bc90bd3b199d29d03ee68adb4a5a17d35bmarks major_t major = (major_t)(dev >> NBITSMINOR64) & MAXMAJ64;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumzfs_znode_sa_init(zfsvfs_t *zfsvfs, znode_t *zp,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum dmu_buf_t *db, dmu_object_type_t obj_type, sa_handle_t *sa_hdl)
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee ASSERT(!POINTER_IS_VALID(zp->z_zfsvfs) || (zfsvfs == zp->z_zfsvfs));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum VERIFY(0 == sa_handle_get_from_db(zfsvfs->z_os, db, zp,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum zp->z_is_sa = (obj_type == DMU_OT_SA) ? B_TRUE : B_FALSE;
4ccbb6e737373468bb9dc1709618384cce4c9f92ahrens * Slap on VROOT if we are the root znode
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee ASSERT(MUTEX_HELD(ZFS_OBJ_MUTEX(zp->z_zfsvfs, zp->z_id)) ||
874395d5f8cae2b9cd2d1fcbfcfe963a0c23966dmaybee RW_WRITE_HELD(&zp->z_zfsvfs->z_teardown_inactive_lock));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Construct a new znode/vnode and intialize.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * This does not do a call to dmu_set_user() that is
fa9e4066f08beec538e775443c5be79dd423fcabahrens * up to the caller to do, in case you don't want to
fa9e4066f08beec538e775443c5be79dd423fcabahrens * return the znode
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumzfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum dmu_object_type_t obj_type, sa_handle_t *hdl)
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * Defer setting z_zfsvfs until the znode is ready to be a candidate for
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * the zfs_znode_move() callback.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum zfs_znode_sa_init(zfsvfs, zp, db, obj_type, hdl);
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_GEN(zfsvfs), NULL, &zp->z_gen, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
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_ATIME(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum if (sa_bulk_lookup(zp->z_sa_hdl, bulk, count) != 0 || zp->z_gen == 0) {
7f6e3e7d4ebf3d6d45073854bef004ca26f8e918perrin zp->z_zn_prefetch = B_TRUE; /* z_prefetch default is enabled */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum VERIFY(sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zfsvfs),
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*FALLTHROUGH*/
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * Everything else must be valid before assigning z_zfsvfs makes the
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee * znode eligible for zfs_znode_move().
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Create a new DMU object to hold a zfs znode.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * IN: dzp - parent directory for new znode
fa9e4066f08beec538e775443c5be79dd423fcabahrens * vap - file attributes for new znode
fa9e4066f08beec538e775443c5be79dd423fcabahrens * tx - dmu transaction id for zap operations
fa9e4066f08beec538e775443c5be79dd423fcabahrens * cr - credentials of caller
fa9e4066f08beec538e775443c5be79dd423fcabahrens * flag - flags:
fa9e4066f08beec538e775443c5be79dd423fcabahrens * IS_ROOT_NODE - new object will be root
fa9e4066f08beec538e775443c5be79dd423fcabahrens * IS_XATTR - new object is an attribute
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * bonuslen - length of bonus buffer
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * setaclp - File/Dir initial ACL
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * fuidp - Tracks fuid allocation.
4ccbb6e737373468bb9dc1709618384cce4c9f92ahrens * OUT: zpp - allocated znode
4ccbb6e737373468bb9dc1709618384cce4c9f92ahrenszfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum uint_t flag, znode_t **zpp, zfs_acl_ids_t *acl_ids)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum uint64_t crtime[2], atime[2], mtime[2], ctime[2];
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum uint64_t mode, size, links, parent, pflags;
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(vap && (vap->va_mask & (AT_TYPE|AT_MODE)) == (AT_TYPE|AT_MODE));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum obj_type = zfsvfs->z_use_sa ? DMU_OT_SA : DMU_OT_ZNODE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Create a new DMU object.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * There's currently no mechanism for pre-reading the blocks that will
744947dc83c634d985ed3ad79ac9c5e28d1865fdTom Erickson * be needed to allocate a new object, so we accept the small chance
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * that there will be an i/o error and we will fail one of the
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * assertions below.
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman VERIFY0(zap_create_claim_norm(zfsvfs->z_os, obj,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum VERIFY(0 == sa_buf_hold(zfsvfs->z_os, obj, NULL, &db));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If this is the root, fix up the half-initialized parent pointer
fa9e4066f08beec538e775443c5be79dd423fcabahrens * to reference the just-allocated physical data area.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If parent is an xattr, so am I.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum links = (flag & (IS_ROOT_NODE | IS_XATTR)) ? 2 : 1;
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum if (vap->va_type == VBLK || vap->va_type == VCHR) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * No execs denied will be deterimed when zfs_mode_compute() is called.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum (ZFS_ACL_TRIVIAL|ZFS_INHERIT_ACE|ZFS_ACL_AUTO_INHERIT|
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum /* Now add in all of the "SA" attributes */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum VERIFY(0 == sa_handle_get_from_db(zfsvfs->z_os, db, NULL, SA_HDL_SHARED,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * Setup the array of attributes to be replaced/set on the new file
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * order for DMU_OT_ZNODE is critical since it needs to be constructed
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * in the old znode_phys_t format. Don't change this ordering
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ATIME(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MTIME(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CTIME(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CRTIME(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GEN(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MODE(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_SIZE(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PARENT(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MODE(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_SIZE(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GEN(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_UID(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GID(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PARENT(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_FLAGS(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ATIME(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MTIME(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CTIME(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CRTIME(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_LINKS(zfsvfs), NULL, &links, 8);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_XATTR(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum (vap->va_type == VBLK || vap->va_type == VCHR)) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_RDEV(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_FLAGS(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_UID(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GID(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PAD(zfsvfs), NULL, pad,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ZNODE_ACL(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum } else if (acl_ids->z_aclp->z_version >= ZFS_ACL_VERSION_FUID) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_DACL_COUNT(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_DACL_ACES(zfsvfs),
27dd1e87cd3d939264769dd4af7e6a529cde001fMark Shellenbaum mode = zfs_mode_compute(mode, acl_ids->z_aclp, &pflags,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum VERIFY(sa_replace_all_by_template(sa_hdl, sa_attrs, cnt, tx) == 0);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum *zpp = zfs_znode_alloc(zfsvfs, db, 0, obj_type, sa_hdl);
874395d5f8cae2b9cd2d1fcbfcfe963a0c23966dmaybee * If we are creating the root node, the "parent" we
874395d5f8cae2b9cd2d1fcbfcfe963a0c23966dmaybee * passed in is the znode for the root.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum acl_ids->z_aclp->z_version < ZFS_ACL_VERSION_FUID) {
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman VERIFY0(zfs_aclset_common(*zpp, acl_ids->z_aclp, cr, tx));
f7170741490edba9d1d9c697c177c887172bc741Will Andrews * Update in-core attributes. It is assumed the caller will be doing an
f7170741490edba9d1d9c697c177c887172bc741Will Andrews * sa_bulk_update to push the changes out.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumzfs_xvattr_set(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_TIME_ENCODE(&xoap->xoa_createtime, times);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum (void) sa_update(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_READONLY, xoap->xoa_readonly,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_HIDDEN, xoap->xoa_hidden,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_SYSTEM, xoap->xoa_system,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_ARCHIVE, xoap->xoa_archive,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_IMMUTABLE, xoap->xoa_immutable,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_NOUNLINK, xoap->xoa_nounlink,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_APPENDONLY, xoap->xoa_appendonly,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_NODUMP, xoap->xoa_nodump,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_OPAQUE, xoap->xoa_opaque,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum xoap->xoa_av_quarantined, zp->z_pflags, tx);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_AV_MODIFIED, xoap->xoa_av_modified,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum ZFS_ATTR_SET(zp, ZFS_REPARSE, xoap->xoa_reparse,
fd9ee8b58485b20072eeef1310a88ff348d5e7fajoyce mcintosh ZFS_ATTR_SET(zp, ZFS_OFFLINE, xoap->xoa_offline,
fd9ee8b58485b20072eeef1310a88ff348d5e7fajoyce mcintosh ZFS_ATTR_SET(zp, ZFS_SPARSE, xoap->xoa_sparse,
fa9e4066f08beec538e775443c5be79dd423fcabahrenszfs_zget(zfsvfs_t *zfsvfs, uint64_t obj_num, znode_t **zpp)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum err = sa_buf_hold(zfsvfs->z_os, obj_num, NULL, &db);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum doi.doi_bonus_size < sizeof (znode_phys_t)))) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * Since "SA" does immediate eviction we
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * should never find a sa handle that doesn't
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * know about the znode.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Not found create new znode/vnode
59e7834d1e880f3bff4758743856820dfb41e8f2Mark Shellenbaum * but only if file exists.
59e7834d1e880f3bff4758743856820dfb41e8f2Mark Shellenbaum * There is a small window where zfs_vget() could
59e7834d1e880f3bff4758743856820dfb41e8f2Mark Shellenbaum * find this object while a file create is still in
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * progress. This is checked for in zfs_znode_alloc()
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * if zfs_znode_alloc() fails it will drop the hold on the
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * bonus buffer.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum zp = zfs_znode_alloc(zfsvfs, db, doi.doi_data_block_size,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum err = sa_buf_hold(zfsvfs->z_os, obj_num, NULL, &db);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum doi.doi_bonus_size < sizeof (znode_phys_t)))) {
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum zfs_znode_sa_init(zfsvfs, zp, db, doi.doi_bonus_type, NULL);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum /* reload cached values */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GEN(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ATIME(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum if (sa_bulk_lookup(zp->z_sa_hdl, bulk, count)) {
f18faf3f3e5def85fdfff681617d227703ace2adek return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Don't allow a zfs_zget() while were trying to release this znode
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If the hold count is greater than zero, somebody has
fa9e4066f08beec538e775443c5be79dd423fcabahrens * obtained a new reference on this znode while we were
fa9e4066f08beec538e775443c5be79dd423fcabahrens * processing it here, so we are done. If we still have
fa9e4066f08beec538e775443c5be79dd423fcabahrens * mapped pages then we are also done, since we don't
fa9e4066f08beec538e775443c5be79dd423fcabahrens * want to inactivate the znode until the pages get pushed.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * XXX - if vn_has_cached_data(vp) is true, but count == 0,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * this seems like it would leave the znode hanging with
fa9e4066f08beec538e775443c5be79dd423fcabahrens * no chance to go inactive...
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If this was the last reference to a file with no links,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * remove the file from the file system.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaumzfs_tstamp_update_setup(znode_t *zp, uint_t flag, uint64_t mtime[2],
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum if (have_tx) { /* will sa_bulk_update happen really soon? */
104e2ed78d9ef0a0f89f320108b8ca29ca3850d5perrin * Grow the block size for a file.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * IN: zp - znode of file to free data in.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * size - requested block size
fa9e4066f08beec538e775443c5be79dd423fcabahrens * tx - open transaction.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * NOTE: this function assumes that the znode is write locked.
fa9e4066f08beec538e775443c5be79dd423fcabahrenszfs_grow_blocksize(znode_t *zp, uint64_t size, dmu_tx_t *tx)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If the file size is already greater than the current blocksize,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * we will not grow. If there is more than one block in a file,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * the blocksize cannot change.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum if (zp->z_blksz && zp->z_size > zp->z_blksz)
fa9e4066f08beec538e775443c5be79dd423fcabahrens error = dmu_object_set_blocksize(zp->z_zfsvfs->z_os, zp->z_id,
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* What blocksize did we actually get? */
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum dmu_object_size_from_db(sa_get_db(zp->z_sa_hdl), &zp->z_blksz, &dummy);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * This is a dummy interface used when pvn_vplist_dirty() should *not*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * be calling back into the fs for a putpage(). E.g.: when truncating
fa9e4066f08beec538e775443c5be79dd423fcabahrens * a file, the pages being "thrown away* don't need to be written out.
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* ARGSUSED */
fa9e4066f08beec538e775443c5be79dd423fcabahrenszfs_no_putpage(vnode_t *vp, page_t *pp, u_offset_t *offp, size_t *lenp,
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * Increase the file length
fa9e4066f08beec538e775443c5be79dd423fcabahrens * IN: zp - znode of file to free data in.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * end - new end-of-file
4bb73804952172060c9efb163b89c17f56804fe8Matthew Ahrens * RETURN: 0 on success, error code on failure
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * We will change zp_size, lock the whole file.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Nothing to do if file already at desired length.
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
5730cc9a43c5f11a472d7536ed81facfd10f1e2emaybee (!ISP2(zp->z_blksz) || zp->z_blksz < zfsvfs->z_max_blksz)) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens * We are growing the file past the current block size.
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * File's blocksize is already larger than the
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * "recordsize" property. Only let it grow to
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * the next power of 2.
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens newblksz = MIN(end, 1 << highbit64(zp->z_blksz));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_SIZE(zp->z_zfsvfs),
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee return (0);
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * Free space in a file.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * IN: zp - znode of file to free data in.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * off - start of section to free.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * len - length of section to free.
4bb73804952172060c9efb163b89c17f56804fe8Matthew Ahrens * RETURN: 0 on success, error code on failure
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybeezfs_free_range(znode_t *zp, uint64_t off, uint64_t len)
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * Lock the range being freed.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * Nothing to do if file already at desired length.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee return (0);
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee error = dmu_free_long_range(zfsvfs->z_os, zp->z_id, off, len);
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * Truncate a file
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * IN: zp - znode of file to free data in.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * end - new end-of-file.
4bb73804952172060c9efb163b89c17f56804fe8Matthew Ahrens * RETURN: 0 on success, error code on failure
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * We will change zp_size, lock the whole file.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * Nothing to do if file already at desired length.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee return (0);
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee error = dmu_free_long_range(zfsvfs->z_os, zp->z_id, end, -1);
fd9ee8b58485b20072eeef1310a88ff348d5e7fajoyce mcintosh SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs),
fd9ee8b58485b20072eeef1310a88ff348d5e7fajoyce mcintosh SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs),
fd9ee8b58485b20072eeef1310a88ff348d5e7fajoyce mcintosh VERIFY(sa_bulk_update(zp->z_sa_hdl, bulk, count, tx) == 0);
5730cc9a43c5f11a472d7536ed81facfd10f1e2emaybee * Clear any mapped pages in the truncated region. This has to
5730cc9a43c5f11a472d7536ed81facfd10f1e2emaybee * happen outside of the transaction to avoid the possibility of
5730cc9a43c5f11a472d7536ed81facfd10f1e2emaybee * a deadlock with someone trying to push a page that we are
5730cc9a43c5f11a472d7536ed81facfd10f1e2emaybee * about to invalidate.
5730cc9a43c5f11a472d7536ed81facfd10f1e2emaybee if (poff != 0 && (pp = page_lookup(vp, start, SE_SHARED))) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens * We need to zero a partial page.
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * Free space in a file
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * IN: zp - znode of file to free data in.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * off - start of range
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * len - end of range (0 => EOF)
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * flag - current file open mode flags.
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * log - TRUE if this action should be logged
4bb73804952172060c9efb163b89c17f56804fe8Matthew Ahrens * RETURN: 0 on success, error code on failure
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybeezfs_freesp(znode_t *zp, uint64_t off, uint64_t len, int flag, boolean_t log)
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_MODE(zfsvfs), &mode,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum sizeof (mode))) != 0)
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee * Check for any locks in the region to be freed.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum uint64_t length = (len ? len : zp->z_size - off);
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee if (error = chklock(vp, FWRITE, off, length, flag, NULL))
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee if (len == 0) {
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);
db9986c78dc7730f3091d7780ef0ba0937183a24Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs),
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum zfs_tstamp_update_setup(zp, CONTENT_MODIFIED, mtime, ctime, B_TRUE);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx);
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee zfs_log_truncate(zilog, tx, TX_TRUNCATE, zp, off, len);
cdb0ab79ea1af7b8fc339a04d4bf7426dc77ec4emaybee return (0);
de8267e0f723ed2c38ea9def92d465f69a300f56timhzfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * First attempt to create master node.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * In an empty objset, there are no blocks to read and thus
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * there can be no i/o errors (which we assert below).
fa9e4066f08beec538e775443c5be79dd423fcabahrens error = zap_create_claim(os, moid, DMU_OT_MASTER_NODE,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Set starting attributes.
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum version = zfs_zpl_version_map(spa_version(dmu_objset_spa(os)));
de8267e0f723ed2c38ea9def92d465f69a300f56timh while ((elem = nvlist_next_nvpair(zplprops, elem)) != NULL) {
de8267e0f723ed2c38ea9def92d465f69a300f56timh /* For the moment we expect all zpl props to be uint64_ts */
de8267e0f723ed2c38ea9def92d465f69a300f56timh if (strcmp(name, zfs_prop_to_name(ZFS_PROP_VERSION)) == 0) {
de8267e0f723ed2c38ea9def92d465f69a300f56timh if (strcmp(name, zfs_prop_to_name(ZFS_PROP_NORMALIZE)) == 0)
de8267e0f723ed2c38ea9def92d465f69a300f56timh else if (strcmp(name, zfs_prop_to_name(ZFS_PROP_CASE)) == 0)
148434217c040ea38dc844384f6ba68d9b325906Matthew Ahrens error = zap_update(os, moid, ZPL_VERSION_STR, 8, 1, &version, tx);
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum * Create zap object used for SA attribute registration
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum sa_obj = zap_create(os, DMU_OT_SA_MASTER_NODE,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum error = zap_add(os, moid, ZFS_SA_ATTRS, 8, 1, &sa_obj, tx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Create a delete queue.
148434217c040ea38dc844384f6ba68d9b325906Matthew Ahrens obj = zap_create(os, DMU_OT_UNLINKED_SET, DMU_OT_NONE, 0, tx);
148434217c040ea38dc844384f6ba68d9b325906Matthew Ahrens error = zap_add(os, moid, ZFS_UNLINKED_SET, 8, 1, &obj, tx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Create root znode. Create minimal znode/vnode/zfsvfs
fa9e4066f08beec538e775443c5be79dd423fcabahrens * to allow zfs_mknode to work.
c701fde6911c957e71b37aac4daf672bd828f4d7Gleb Smirnoff zfsvfs = kmem_zalloc(sizeof (zfsvfs_t), KM_SLEEP);
1d8ccc7bfd8ab0f27a23c5253d95c22ceb9c27f4Mark Shellenbaum error = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END,
de8267e0f723ed2c38ea9def92d465f69a300f56timh * Fold case on file systems that are always or sometimes case
de8267e0f723ed2c38ea9def92d465f69a300f56timh * insensitive.
de8267e0f723ed2c38ea9def92d465f69a300f56timh if (sense == ZFS_CASE_INSENSITIVE || sense == ZFS_CASE_MIXED)
c701fde6911c957e71b37aac4daf672bd828f4d7Gleb Smirnoff mutex_init(&zfsvfs->z_znodes_lock, NULL, MUTEX_DEFAULT, NULL);
c701fde6911c957e71b37aac4daf672bd828f4d7Gleb Smirnoff list_create(&zfsvfs->z_all_znodes, sizeof (znode_t),
59e7834d1e880f3bff4758743856820dfb41e8f2Mark Shellenbaum for (i = 0; i != ZFS_OBJ_MTX_SZ; i++)
c701fde6911c957e71b37aac4daf672bd828f4d7Gleb Smirnoff mutex_init(&zfsvfs->z_hold_mtx[i], NULL, MUTEX_DEFAULT, NULL);
89459e17032b6bb1d59eebd2b7c0d06859d4657cMark Shellenbaum VERIFY(0 == zfs_acl_ids_create(rootzp, IS_ROOT_NODE, &vattr,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum zfs_mknode(rootzp, &vattr, tx, cr, IS_ROOT_NODE, &zp, &acl_ids);
b5fca8f855054d167d04d3b4de5210c83ed2083ctomee ASSERT(!vn_in_dnlc(ZTOV(rootzp))); /* not valid to move */
4ccbb6e737373468bb9dc1709618384cce4c9f92ahrens error = zap_add(os, moid, ZFS_ROOT_OBJ, 8, 1, &rootzp->z_id, tx);
743a77ed89085d3c232c4a2f65ab4e19576839e2Alan Wright * Create shares directory
59e7834d1e880f3bff4758743856820dfb41e8f2Mark Shellenbaum for (i = 0; i != ZFS_OBJ_MTX_SZ; i++)
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw#endif /* _KERNEL */
99d5e173470cf967aa87653364ed614299e7b511Tim Haleyzfs_sa_setup(objset_t *osp, sa_attr_type_t **sa_table)
99d5e173470cf967aa87653364ed614299e7b511Tim Haley error = zap_lookup(osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1, &sa_obj);
99d5e173470cf967aa87653364ed614299e7b511Tim Haley error = sa_setup(osp, sa_obj, zfs_attr_table, ZPL_END, sa_table);
99d5e173470cf967aa87653364ed614299e7b511Tim Haleyzfs_grab_sa_handle(objset_t *osp, uint64_t obj, sa_handle_t **hdlp,
163eb7ff0acf105df4a6afcbbd919a066afe4a1bTim Haley if ((error = sa_buf_hold(osp, obj, tag, db)) != 0)
99d5e173470cf967aa87653364ed614299e7b511Tim Haley error = sa_handle_get(osp, obj, NULL, SA_HDL_PRIVATE, hdlp);
163eb7ff0acf105df4a6afcbbd919a066afe4a1bTim Haleyzfs_release_sa_handle(sa_handle_t *hdl, dmu_buf_t *db, void *tag)
99d5e173470cf967aa87653364ed614299e7b511Tim Haley * Given an object number, return its parent object number and whether
99d5e173470cf967aa87653364ed614299e7b511Tim Haley * or not the object is an extended attribute directory.
1ce39b5f7909b9be3294c026d97221d76b301e88Jeremy Joneszfs_obj_to_pobj(objset_t *osp, sa_handle_t *hdl, sa_attr_type_t *sa_table,
99d5e173470cf967aa87653364ed614299e7b511Tim Haley SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_PARENT], NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_FLAGS], NULL,
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_MODE], NULL,
99d5e173470cf967aa87653364ed614299e7b511Tim Haley if ((error = sa_bulk_lookup(hdl, bulk, count)) != 0)
1ce39b5f7909b9be3294c026d97221d76b301e88Jeremy Jones * When a link is removed its parent pointer is not changed and will
1ce39b5f7909b9be3294c026d97221d76b301e88Jeremy Jones * be invalid. There are two cases where a link is removed but the
1ce39b5f7909b9be3294c026d97221d76b301e88Jeremy Jones * file stays around, when it goes to the delete queue and when there
1ce39b5f7909b9be3294c026d97221d76b301e88Jeremy Jones * are additional links.
1ce39b5f7909b9be3294c026d97221d76b301e88Jeremy Jones error = zfs_grab_sa_handle(osp, parent, &sa_hdl, &sa_db, FTAG);
1ce39b5f7909b9be3294c026d97221d76b301e88Jeremy Jones error = sa_lookup(sa_hdl, ZPL_MODE, &parent_mode, sizeof (parent_mode));
0a586cea3ceec7e5e50e7e54c745082a7a333ac2Mark Shellenbaum *is_xattrdir = ((pflags & ZFS_XATTR) != 0) && S_ISDIR(mode);
1ce39b5f7909b9be3294c026d97221d76b301e88Jeremy Jones * Extended attributes can be applied to files, directories, etc.
1ce39b5f7909b9be3294c026d97221d76b301e88Jeremy Jones * Otherwise the parent must be a directory.
55434c770c89aa1b84474f2559a106803511aba0ek return (0);
99d5e173470cf967aa87653364ed614299e7b511Tim Haley * Given an object number, return some zpl level statistics
99d5e173470cf967aa87653364ed614299e7b511Tim Haleyzfs_obj_to_stats_impl(sa_handle_t *hdl, sa_attr_type_t *sa_table,
99d5e173470cf967aa87653364ed614299e7b511Tim Haley SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_MODE], NULL,
99d5e173470cf967aa87653364ed614299e7b511Tim Haley SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_GEN], NULL,
99d5e173470cf967aa87653364ed614299e7b511Tim Haley SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_LINKS], NULL,
99d5e173470cf967aa87653364ed614299e7b511Tim Haley SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_CTIME], NULL,
99d5e173470cf967aa87653364ed614299e7b511Tim Haleyzfs_obj_to_path_impl(objset_t *osp, uint64_t obj, sa_handle_t *hdl,
55434c770c89aa1b84474f2559a106803511aba0ek for (;;) {
1ce39b5f7909b9be3294c026d97221d76b301e88Jeremy Jones if ((error = zfs_obj_to_pobj(osp, sa_hdl, sa_table, &pobj,
163eb7ff0acf105df4a6afcbbd919a066afe4a1bTim Haley error = zfs_grab_sa_handle(osp, obj, &sa_hdl, &sa_db, FTAG);
99d5e173470cf967aa87653364ed614299e7b511Tim Haleyzfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len)
163eb7ff0acf105df4a6afcbbd919a066afe4a1bTim Haley error = zfs_grab_sa_handle(osp, obj, &hdl, &db, FTAG);
99d5e173470cf967aa87653364ed614299e7b511Tim Haley error = zfs_obj_to_path_impl(osp, obj, hdl, sa_table, buf, len);
99d5e173470cf967aa87653364ed614299e7b511Tim Haleyzfs_obj_to_stats(objset_t *osp, uint64_t obj, zfs_stat_t *sb,
163eb7ff0acf105df4a6afcbbd919a066afe4a1bTim Haley error = zfs_grab_sa_handle(osp, obj, &hdl, &db, FTAG);