Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 673 insertions, 0 deletions

diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c
new file mode 100644
index 00000000000..cb13f9a1d45
--- /dev/null
+++ b/fs/xfs/xfs_rename.c
@@ -0,0 +1,673 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_error.h"
+#include "xfs_quota.h"
+#include "xfs_refcache.h"
+#include "xfs_utils.h"
+#include "xfs_trans_space.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir_leaf.h"
+
+
+/*
+ * Given an array of up to 4 inode pointers, unlock the pointed to inodes.
+ * If there are fewer than 4 entries in the array, the empty entries will
+ * be at the end and will have NULL pointers in them.
+ */
+STATIC void
+xfs_rename_unlock4(
+        xfs_inode_t     **i_tab,
+        uint            lock_mode)
+{
+        int     i;
+
+        xfs_iunlock(i_tab[0], lock_mode);
+        for (i = 1; i < 4; i++) {
+                if (i_tab[i] == NULL) {
+                        break;
+                }
+                /*
+                 * Watch out for duplicate entries in the table.
+                 */
+                if (i_tab[i] != i_tab[i-1]) {
+                        xfs_iunlock(i_tab[i], lock_mode);
+                }
+        }
+}
+
+#ifdef DEBUG
+int xfs_rename_skip, xfs_rename_nskip;
+#endif
+
+/*
+ * The following routine will acquire the locks required for a rename
+ * operation. The code understands the semantics of renames and will
+ * validate that name1 exists under dp1 & that name2 may or may not
+ * exist under dp2.
+ *
+ * We are renaming dp1/name1 to dp2/name2.
+ *
+ * Return ENOENT if dp1 does not exist, other lookup errors, or 0 for success.
+ */
+STATIC int
+xfs_lock_for_rename(
+        xfs_inode_t     *dp1,   /* old (source) directory inode */
+        xfs_inode_t     *dp2,   /* new (target) directory inode */
+        vname_t         *vname1,/* old entry name */
+        vname_t         *vname2,/* new entry name */
+        xfs_inode_t     **ipp1, /* inode of old entry */
+        xfs_inode_t     **ipp2, /* inode of new entry, if it
+                                   already exists, NULL otherwise. */
+        xfs_inode_t     **i_tab,/* array of inode returned, sorted */
+        int             *num_inodes)  /* number of inodes in array */
+{
+        xfs_inode_t             *ip1, *ip2, *temp;
+        xfs_ino_t               inum1, inum2;
+        int                     error;
+        int                     i, j;
+        uint                    lock_mode;
+        int                     diff_dirs = (dp1 != dp2);
+
+        ip2 = NULL;
+
+        /*
+         * First, find out the current inums of the entries so that we
+         * can determine the initial locking order.  We'll have to
+         * sanity check stuff after all the locks have been acquired
+         * to see if we still have the right inodes, directories, etc.
+         */
+        lock_mode = xfs_ilock_map_shared(dp1);
+        error = xfs_get_dir_entry(vname1, &ip1);
+        if (error) {
+                xfs_iunlock_map_shared(dp1, lock_mode);
+                return error;
+        }
+
+        inum1 = ip1->i_ino;
+
+        ASSERT(ip1);
+        ITRACE(ip1);
+
+        /*
+         * Unlock dp1 and lock dp2 if they are different.
+         */
+
+        if (diff_dirs) {
+                xfs_iunlock_map_shared(dp1, lock_mode);
+                lock_mode = xfs_ilock_map_shared(dp2);
+        }
+
+        error = xfs_dir_lookup_int(XFS_ITOBHV(dp2), lock_mode,
+                                   vname2, &inum2, &ip2);
+        if (error == ENOENT) {          /* target does not need to exist. */
+                inum2 = 0;
+        } else if (error) {
+                /*
+                 * If dp2 and dp1 are the same, the next line unlocks dp1.
+                 * Got it?
+                 */
+                xfs_iunlock_map_shared(dp2, lock_mode);
+                IRELE (ip1);
+                return error;
+        } else {
+                ITRACE(ip2);
+        }
+
+        /*
+         * i_tab contains a list of pointers to inodes.  We initialize
+         * the table here & we'll sort it.  We will then use it to
+         * order the acquisition of the inode locks.
+         *
+         * Note that the table may contain duplicates.  e.g., dp1 == dp2.
+         */
+        i_tab[0] = dp1;
+        i_tab[1] = dp2;
+        i_tab[2] = ip1;
+        if (inum2 == 0) {
+                *num_inodes = 3;
+                i_tab[3] = NULL;
+        } else {
+                *num_inodes = 4;
+                i_tab[3] = ip2;
+        }
+
+        /*
+         * Sort the elements via bubble sort.  (Remember, there are at
+         * most 4 elements to sort, so this is adequate.)
+         */
+        for (i=0; i < *num_inodes; i++) {
+                for (j=1; j < *num_inodes; j++) {
+                        if (i_tab[j]->i_ino < i_tab[j-1]->i_ino) {
+                                temp = i_tab[j];
+                                i_tab[j] = i_tab[j-1];
+                                i_tab[j-1] = temp;
+                        }
+                }
+        }
+
+        /*
+         * We have dp2 locked. If it isn't first, unlock it.
+         * If it is first, tell xfs_lock_inodes so it can skip it
+         * when locking. if dp1 == dp2, xfs_lock_inodes will skip both
+         * since they are equal. xfs_lock_inodes needs all these inodes
+         * so that it can unlock and retry if there might be a dead-lock
+         * potential with the log.
+         */
+
+        if (i_tab[0] == dp2 && lock_mode == XFS_ILOCK_SHARED) {
+#ifdef DEBUG
+                xfs_rename_skip++;
+#endif
+                xfs_lock_inodes(i_tab, *num_inodes, 1, XFS_ILOCK_SHARED);
+        } else {
+#ifdef DEBUG
+                xfs_rename_nskip++;
+#endif
+                xfs_iunlock_map_shared(dp2, lock_mode);
+                xfs_lock_inodes(i_tab, *num_inodes, 0, XFS_ILOCK_SHARED);
+        }
+
+        /*
+         * Set the return value. Null out any unused entries in i_tab.
+         */
+        *ipp1 = *ipp2 = NULL;
+        for (i=0; i < *num_inodes; i++) {
+                if (i_tab[i]->i_ino == inum1) {
+                        *ipp1 = i_tab[i];
+                }
+                if (i_tab[i]->i_ino == inum2) {
+                        *ipp2 = i_tab[i];
+                }
+        }
+        for (;i < 4; i++) {
+                i_tab[i] = NULL;
+        }
+        return 0;
+}
+
+
+int rename_which_error_return = 0;
+
+/*
+ * xfs_rename
+ */
+int
+xfs_rename(
+        bhv_desc_t      *src_dir_bdp,
+        vname_t         *src_vname,
+        vnode_t         *target_dir_vp,
+        vname_t         *target_vname,
+        cred_t          *credp)
+{
+        xfs_trans_t     *tp;
+        xfs_inode_t     *src_dp, *target_dp, *src_ip, *target_ip;
+        xfs_mount_t     *mp;
+        int             new_parent;             /* moving to a new dir */
+        int             src_is_directory;       /* src_name is a directory */
+        int             error;
+        xfs_bmap_free_t free_list;
+        xfs_fsblock_t   first_block;
+        int             cancel_flags;
+        int             committed;
+        xfs_inode_t     *inodes[4];
+        int             target_ip_dropped = 0;  /* dropped target_ip link? */
+        vnode_t         *src_dir_vp;
+        bhv_desc_t      *target_dir_bdp;
+        int             spaceres;
+        int             target_link_zero = 0;
+        int             num_inodes;
+        char            *src_name = VNAME(src_vname);
+        char            *target_name = VNAME(target_vname);
+        int             src_namelen = VNAMELEN(src_vname);
+        int             target_namelen = VNAMELEN(target_vname);
+
+        src_dir_vp = BHV_TO_VNODE(src_dir_bdp);
+        vn_trace_entry(src_dir_vp, "xfs_rename", (inst_t *)__return_address);
+        vn_trace_entry(target_dir_vp, "xfs_rename", (inst_t *)__return_address);
+
+        /*
+         * Find the XFS behavior descriptor for the target directory
+         * vnode since it was not handed to us.
+         */
+        target_dir_bdp = vn_bhv_lookup_unlocked(VN_BHV_HEAD(target_dir_vp),
+                                                &xfs_vnodeops);
+        if (target_dir_bdp == NULL) {
+                return XFS_ERROR(EXDEV);
+        }
+
+        src_dp = XFS_BHVTOI(src_dir_bdp);
+        target_dp = XFS_BHVTOI(target_dir_bdp);
+        mp = src_dp->i_mount;
+
+        if (DM_EVENT_ENABLED(src_dir_vp->v_vfsp, src_dp, DM_EVENT_RENAME) ||
+            DM_EVENT_ENABLED(target_dir_vp->v_vfsp,
+                                target_dp, DM_EVENT_RENAME)) {
+                error = XFS_SEND_NAMESP(mp, DM_EVENT_RENAME,
+                                        src_dir_vp, DM_RIGHT_NULL,
+                                        target_dir_vp, DM_RIGHT_NULL,
+                                        src_name, target_name,
+                                        0, 0, 0);
+                if (error) {
+                        return error;
+                }
+        }
+        /* Return through std_return after this point. */
+
+        /*
+         * Lock all the participating inodes. Depending upon whether
+         * the target_name exists in the target directory, and
+         * whether the target directory is the same as the source
+         * directory, we can lock from 2 to 4 inodes.
+         * xfs_lock_for_rename() will return ENOENT if src_name
+         * does not exist in the source directory.
+         */
+        tp = NULL;
+        error = xfs_lock_for_rename(src_dp, target_dp, src_vname,
+                        target_vname, &src_ip, &target_ip, inodes,
+                        &num_inodes);
+
+        if (error) {
+                rename_which_error_return = __LINE__;
+                /*
+                 * We have nothing locked, no inode references, and
+                 * no transaction, so just get out.
+                 */
+                goto std_return;
+        }
+
+        ASSERT(src_ip != NULL);
+
+        if ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+                /*
+                 * Check for link count overflow on target_dp
+                 */
+                if (target_ip == NULL && (src_dp != target_dp) &&
+                    target_dp->i_d.di_nlink >= XFS_MAXLINK) {
+                        rename_which_error_return = __LINE__;
+                        error = XFS_ERROR(EMLINK);
+                        xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
+                        goto rele_return;
+                }
+        }
+
+        new_parent = (src_dp != target_dp);
+        src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR);
+
+        /*
+         * Drop the locks on our inodes so that we can start the transaction.
+         */
+        xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
+
+        XFS_BMAP_INIT(&free_list, &first_block);
+        tp = xfs_trans_alloc(mp, XFS_TRANS_RENAME);
+        cancel_flags = XFS_TRANS_RELEASE_LOG_RES;
+        spaceres = XFS_RENAME_SPACE_RES(mp, target_namelen);
+        error = xfs_trans_reserve(tp, spaceres, XFS_RENAME_LOG_RES(mp), 0,
+                        XFS_TRANS_PERM_LOG_RES, XFS_RENAME_LOG_COUNT);
+        if (error == ENOSPC) {
+                spaceres = 0;
+                error = xfs_trans_reserve(tp, 0, XFS_RENAME_LOG_RES(mp), 0,
+                                XFS_TRANS_PERM_LOG_RES, XFS_RENAME_LOG_COUNT);
+        }
+        if (error) {
+                rename_which_error_return = __LINE__;
+                xfs_trans_cancel(tp, 0);
+                goto rele_return;
+        }
+
+        /*
+         * Attach the dquots to the inodes
+         */
+        if ((error = XFS_QM_DQVOPRENAME(mp, inodes))) {
+                xfs_trans_cancel(tp, cancel_flags);
+                rename_which_error_return = __LINE__;
+                goto rele_return;
+        }
+
+        /*
+         * Reacquire the inode locks we dropped above.
+         */
+        xfs_lock_inodes(inodes, num_inodes, 0, XFS_ILOCK_EXCL);
+
+        /*
+         * Join all the inodes to the transaction. From this point on,
+         * we can rely on either trans_commit or trans_cancel to unlock
+         * them.  Note that we need to add a vnode reference to the
+         * directories since trans_commit & trans_cancel will decrement
+         * them when they unlock the inodes.  Also, we need to be careful
+         * not to add an inode to the transaction more than once.
+         */
+        VN_HOLD(src_dir_vp);
+        xfs_trans_ijoin(tp, src_dp, XFS_ILOCK_EXCL);
+        if (new_parent) {
+                VN_HOLD(target_dir_vp);
+                xfs_trans_ijoin(tp, target_dp, XFS_ILOCK_EXCL);
+        }
+        if ((src_ip != src_dp) && (src_ip != target_dp)) {
+                xfs_trans_ijoin(tp, src_ip, XFS_ILOCK_EXCL);
+        }
+        if ((target_ip != NULL) &&
+            (target_ip != src_ip) &&
+            (target_ip != src_dp) &&
+            (target_ip != target_dp)) {
+                xfs_trans_ijoin(tp, target_ip, XFS_ILOCK_EXCL);
+        }
+
+        /*
+         * Set up the target.
+         */
+        if (target_ip == NULL) {
+                /*
+                 * If there's no space reservation, check the entry will
+                 * fit before actually inserting it.
+                 */
+                if (spaceres == 0 &&
+                    (error = XFS_DIR_CANENTER(mp, tp, target_dp, target_name,
+                                target_namelen))) {
+                        rename_which_error_return = __LINE__;
+                        goto error_return;
+                }
+                /*
+                 * If target does not exist and the rename crosses
+                 * directories, adjust the target directory link count
+                 * to account for the ".." reference from the new entry.
+                 */
+                error = XFS_DIR_CREATENAME(mp, tp, target_dp, target_name,
+                                           target_namelen, src_ip->i_ino,
+                                           &first_block, &free_list, spaceres);
+                if (error == ENOSPC) {
+                        rename_which_error_return = __LINE__;
+                        goto error_return;
+                }
+                if (error) {
+                        rename_which_error_return = __LINE__;
+                        goto abort_return;
+                }
+                xfs_ichgtime(target_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+                if (new_parent && src_is_directory) {
+                        error = xfs_bumplink(tp, target_dp);
+                        if (error) {
+                                rename_which_error_return = __LINE__;
+                                goto abort_return;
+                        }
+                }
+        } else { /* target_ip != NULL */
+
+                /*
+                 * If target exists and it's a directory, check that both
+                 * target and source are directories and that target can be
+                 * destroyed, or that neither is a directory.
+                 */
+                if ((target_ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+                        /*
+                         * Make sure target dir is empty.
+                         */
+                        if (!(XFS_DIR_ISEMPTY(target_ip->i_mount, target_ip)) ||
+                            (target_ip->i_d.di_nlink > 2)) {
+                                error = XFS_ERROR(EEXIST);
+                                rename_which_error_return = __LINE__;
+                                goto error_return;
+                        }
+                }
+
+                /*
+                 * Link the source inode under the target name.
+                 * If the source inode is a directory and we are moving
+                 * it across directories, its ".." entry will be
+                 * inconsistent until we replace that down below.
+                 *
+                 * In case there is already an entry with the same
+                 * name at the destination directory, remove it first.
+                 */
+                error = XFS_DIR_REPLACE(mp, tp, target_dp, target_name,
+                        target_namelen, src_ip->i_ino, &first_block,
+                        &free_list, spaceres);
+                if (error) {
+                        rename_which_error_return = __LINE__;
+                        goto abort_return;
+                }
+                xfs_ichgtime(target_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+                /*
+                 * Decrement the link count on the target since the target
+                 * dir no longer points to it.
+                 */
+                error = xfs_droplink(tp, target_ip);
+                if (error) {
+                        rename_which_error_return = __LINE__;
+                        goto abort_return;
+                }
+                target_ip_dropped = 1;
+
+                if (src_is_directory) {
+                        /*
+                         * Drop the link from the old "." entry.
+                         */
+                        error = xfs_droplink(tp, target_ip);
+                        if (error) {
+                                rename_which_error_return = __LINE__;
+                                goto abort_return;
+                        }
+                }
+
+                /* Do this test while we still hold the locks */
+                target_link_zero = (target_ip)->i_d.di_nlink==0;
+
+        } /* target_ip != NULL */
+
+        /*
+         * Remove the source.
+         */
+        if (new_parent && src_is_directory) {
+
+                /*
+                 * Rewrite the ".." entry to point to the new
+                 * directory.
+                 */
+                error = XFS_DIR_REPLACE(mp, tp, src_ip, "..", 2,
+                                        target_dp->i_ino, &first_block,
+                                        &free_list, spaceres);
+                ASSERT(error != EEXIST);
+                if (error) {
+                        rename_which_error_return = __LINE__;
+                        goto abort_return;
+                }
+                xfs_ichgtime(src_ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+        } else {
+                /*
+                 * We always want to hit the ctime on the source inode.
+                 * We do it in the if clause above for the 'new_parent &&
+                 * src_is_directory' case, and here we get all the other
+                 * cases.  This isn't strictly required by the standards
+                 * since the source inode isn't really being changed,
+                 * but old unix file systems did it and some incremental
+                 * backup programs won't work without it.
+                 */
+                xfs_ichgtime(src_ip, XFS_ICHGTIME_CHG);
+        }
+
+        /*
+         * Adjust the link count on src_dp.  This is necessary when
+         * renaming a directory, either within one parent when
+         * the target existed, or across two parent directories.
+         */
+        if (src_is_directory && (new_parent || target_ip != NULL)) {
+
+                /*
+                 * Decrement link count on src_directory since the
+                 * entry that's moved no longer points to it.
+                 */
+                error = xfs_droplink(tp, src_dp);
+                if (error) {
+                        rename_which_error_return = __LINE__;
+                        goto abort_return;
+                }
+        }
+
+        error = XFS_DIR_REMOVENAME(mp, tp, src_dp, src_name, src_namelen,
+                        src_ip->i_ino, &first_block, &free_list, spaceres);
+        if (error) {
+                rename_which_error_return = __LINE__;
+                goto abort_return;
+        }
+        xfs_ichgtime(src_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+        /*
+         * Update the generation counts on all the directory inodes
+         * that we're modifying.
+         */
+        src_dp->i_gen++;
+        xfs_trans_log_inode(tp, src_dp, XFS_ILOG_CORE);
+
+        if (new_parent) {
+                target_dp->i_gen++;
+                xfs_trans_log_inode(tp, target_dp, XFS_ILOG_CORE);
+        }
+
+        /*
+         * If there was a target inode, take an extra reference on
+         * it here so that it doesn't go to xfs_inactive() from
+         * within the commit.
+         */
+        if (target_ip != NULL) {
+                IHOLD(target_ip);
+        }
+
+        /*
+         * If this is a synchronous mount, make sure that the
+         * rename transaction goes to disk before returning to
+         * the user.
+         */
+        if (mp->m_flags & (XFS_MOUNT_WSYNC|XFS_MOUNT_DIRSYNC)) {
+                xfs_trans_set_sync(tp);
+        }
+
+        /*
+         * Take refs. for vop_link_removed calls below.  No need to worry
+         * about directory refs. because the caller holds them.
+         *
+         * Do holds before the xfs_bmap_finish since it might rele them down
+         * to zero.
+         */
+
+        if (target_ip_dropped)
+                IHOLD(target_ip);
+        IHOLD(src_ip);
+
+        error = xfs_bmap_finish(&tp, &free_list, first_block, &committed);
+        if (error) {
+                xfs_bmap_cancel(&free_list);
+                xfs_trans_cancel(tp, (XFS_TRANS_RELEASE_LOG_RES |
+                                 XFS_TRANS_ABORT));
+                if (target_ip != NULL) {
+                        IRELE(target_ip);
+                }
+                if (target_ip_dropped) {
+                        IRELE(target_ip);
+                }
+                IRELE(src_ip);
+                goto std_return;
+        }
+
+        /*
+         * trans_commit will unlock src_ip, target_ip & decrement
+         * the vnode references.
+         */
+        error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+        if (target_ip != NULL) {
+                xfs_refcache_purge_ip(target_ip);
+                IRELE(target_ip);
+        }
+        /*
+         * Let interposed file systems know about removed links.
+         */
+        if (target_ip_dropped) {
+                VOP_LINK_REMOVED(XFS_ITOV(target_ip), target_dir_vp,
+                                        target_link_zero);
+                IRELE(target_ip);
+        }
+
+        FSC_NOTIFY_NAME_CHANGED(XFS_ITOV(src_ip));
+
+        IRELE(src_ip);
+
+        /* Fall through to std_return with error = 0 or errno from
+         * xfs_trans_commit      */
+std_return:
+        if (DM_EVENT_ENABLED(src_dir_vp->v_vfsp, src_dp, DM_EVENT_POSTRENAME) ||
+            DM_EVENT_ENABLED(target_dir_vp->v_vfsp,
+                                target_dp, DM_EVENT_POSTRENAME)) {
+                (void) XFS_SEND_NAMESP (mp, DM_EVENT_POSTRENAME,
+                                        src_dir_vp, DM_RIGHT_NULL,
+                                        target_dir_vp, DM_RIGHT_NULL,
+                                        src_name, target_name,
+                                        0, error, 0);
+        }
+        return error;
+
+ abort_return:
+        cancel_flags |= XFS_TRANS_ABORT;
+        /* FALLTHROUGH */
+ error_return:
+        xfs_bmap_cancel(&free_list);
+        xfs_trans_cancel(tp, cancel_flags);
+        goto std_return;
+
+ rele_return:
+        IRELE(src_ip);
+        if (target_ip != NULL) {
+                IRELE(target_ip);
+        }
+        goto std_return;
+}