diff options
author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
---|---|---|
committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/fs/ocfs2/namei.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/fs/ocfs2/namei.c')
-rw-r--r-- | ANDROID_3.4.5/fs/ocfs2/namei.c | 2500 |
1 files changed, 0 insertions, 2500 deletions
diff --git a/ANDROID_3.4.5/fs/ocfs2/namei.c b/ANDROID_3.4.5/fs/ocfs2/namei.c deleted file mode 100644 index a9856e3e..00000000 --- a/ANDROID_3.4.5/fs/ocfs2/namei.c +++ /dev/null @@ -1,2500 +0,0 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * - * namei.c - * - * Create and rename file, directory, symlinks - * - * Copyright (C) 2002, 2004 Oracle. All rights reserved. - * - * Portions of this code from linux/fs/ext3/dir.c - * - * Copyright (C) 1992, 1993, 1994, 1995 - * Remy Card (card@masi.ibp.fr) - * Laboratoire MASI - Institut Blaise pascal - * Universite Pierre et Marie Curie (Paris VI) - * - * from - * - * linux/fs/minix/dir.c - * - * Copyright (C) 1991, 1992 Linux Torvalds - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. - */ - -#include <linux/fs.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/highmem.h> -#include <linux/quotaops.h> - -#include <cluster/masklog.h> - -#include "ocfs2.h" - -#include "alloc.h" -#include "dcache.h" -#include "dir.h" -#include "dlmglue.h" -#include "extent_map.h" -#include "file.h" -#include "inode.h" -#include "journal.h" -#include "namei.h" -#include "suballoc.h" -#include "super.h" -#include "symlink.h" -#include "sysfile.h" -#include "uptodate.h" -#include "xattr.h" -#include "acl.h" -#include "ocfs2_trace.h" - -#include "buffer_head_io.h" - -static int ocfs2_mknod_locked(struct ocfs2_super *osb, - struct inode *dir, - struct inode *inode, - dev_t dev, - struct buffer_head **new_fe_bh, - struct buffer_head *parent_fe_bh, - handle_t *handle, - struct ocfs2_alloc_context *inode_ac); - -static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb, - struct inode **ret_orphan_dir, - u64 blkno, - char *name, - struct ocfs2_dir_lookup_result *lookup); - -static int ocfs2_orphan_add(struct ocfs2_super *osb, - handle_t *handle, - struct inode *inode, - struct buffer_head *fe_bh, - char *name, - struct ocfs2_dir_lookup_result *lookup, - struct inode *orphan_dir_inode); - -static int ocfs2_create_symlink_data(struct ocfs2_super *osb, - handle_t *handle, - struct inode *inode, - const char *symname); - -/* An orphan dir name is an 8 byte value, printed as a hex string */ -#define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64))) - -static struct dentry *ocfs2_lookup(struct inode *dir, struct dentry *dentry, - struct nameidata *nd) -{ - int status; - u64 blkno; - struct inode *inode = NULL; - struct dentry *ret; - struct ocfs2_inode_info *oi; - - trace_ocfs2_lookup(dir, dentry, dentry->d_name.len, - dentry->d_name.name, - (unsigned long long)OCFS2_I(dir)->ip_blkno, 0); - - if (dentry->d_name.len > OCFS2_MAX_FILENAME_LEN) { - ret = ERR_PTR(-ENAMETOOLONG); - goto bail; - } - - status = ocfs2_inode_lock_nested(dir, NULL, 0, OI_LS_PARENT); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - ret = ERR_PTR(status); - goto bail; - } - - status = ocfs2_lookup_ino_from_name(dir, dentry->d_name.name, - dentry->d_name.len, &blkno); - if (status < 0) - goto bail_add; - - inode = ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0); - if (IS_ERR(inode)) { - ret = ERR_PTR(-EACCES); - goto bail_unlock; - } - - oi = OCFS2_I(inode); - /* Clear any orphaned state... If we were able to look up the - * inode from a directory, it certainly can't be orphaned. We - * might have the bad state from a node which intended to - * orphan this inode but crashed before it could commit the - * unlink. */ - spin_lock(&oi->ip_lock); - oi->ip_flags &= ~OCFS2_INODE_MAYBE_ORPHANED; - spin_unlock(&oi->ip_lock); - -bail_add: - ret = d_splice_alias(inode, dentry); - - if (inode) { - /* - * If d_splice_alias() finds a DCACHE_DISCONNECTED - * dentry, it will d_move() it on top of ourse. The - * return value will indicate this however, so in - * those cases, we switch them around for the locking - * code. - * - * NOTE: This dentry already has ->d_op set from - * ocfs2_get_parent() and ocfs2_get_dentry() - */ - if (ret) - dentry = ret; - - status = ocfs2_dentry_attach_lock(dentry, inode, - OCFS2_I(dir)->ip_blkno); - if (status) { - mlog_errno(status); - ret = ERR_PTR(status); - goto bail_unlock; - } - } else - ocfs2_dentry_attach_gen(dentry); - -bail_unlock: - /* Don't drop the cluster lock until *after* the d_add -- - * unlink on another node will message us to remove that - * dentry under this lock so otherwise we can race this with - * the downconvert thread and have a stale dentry. */ - ocfs2_inode_unlock(dir, 0); - -bail: - - trace_ocfs2_lookup_ret(ret); - - return ret; -} - -static struct inode *ocfs2_get_init_inode(struct inode *dir, umode_t mode) -{ - struct inode *inode; - - inode = new_inode(dir->i_sb); - if (!inode) { - mlog(ML_ERROR, "new_inode failed!\n"); - return NULL; - } - - /* populate as many fields early on as possible - many of - * these are used by the support functions here and in - * callers. */ - if (S_ISDIR(mode)) - set_nlink(inode, 2); - inode_init_owner(inode, dir, mode); - dquot_initialize(inode); - return inode; -} - -static int ocfs2_mknod(struct inode *dir, - struct dentry *dentry, - umode_t mode, - dev_t dev) -{ - int status = 0; - struct buffer_head *parent_fe_bh = NULL; - handle_t *handle = NULL; - struct ocfs2_super *osb; - struct ocfs2_dinode *dirfe; - struct buffer_head *new_fe_bh = NULL; - struct inode *inode = NULL; - struct ocfs2_alloc_context *inode_ac = NULL; - struct ocfs2_alloc_context *data_ac = NULL; - struct ocfs2_alloc_context *meta_ac = NULL; - int want_clusters = 0; - int want_meta = 0; - int xattr_credits = 0; - struct ocfs2_security_xattr_info si = { - .enable = 1, - }; - int did_quota_inode = 0; - struct ocfs2_dir_lookup_result lookup = { NULL, }; - sigset_t oldset; - int did_block_signals = 0; - - trace_ocfs2_mknod(dir, dentry, dentry->d_name.len, dentry->d_name.name, - (unsigned long long)OCFS2_I(dir)->ip_blkno, - (unsigned long)dev, mode); - - dquot_initialize(dir); - - /* get our super block */ - osb = OCFS2_SB(dir->i_sb); - - status = ocfs2_inode_lock(dir, &parent_fe_bh, 1); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - return status; - } - - if (S_ISDIR(mode) && (dir->i_nlink >= ocfs2_link_max(osb))) { - status = -EMLINK; - goto leave; - } - - dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data; - if (!ocfs2_read_links_count(dirfe)) { - /* can't make a file in a deleted directory. */ - status = -ENOENT; - goto leave; - } - - status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, - dentry->d_name.len); - if (status) - goto leave; - - /* get a spot inside the dir. */ - status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, - dentry->d_name.name, - dentry->d_name.len, &lookup); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - /* reserve an inode spot */ - status = ocfs2_reserve_new_inode(osb, &inode_ac); - if (status < 0) { - if (status != -ENOSPC) - mlog_errno(status); - goto leave; - } - - inode = ocfs2_get_init_inode(dir, mode); - if (!inode) { - status = -ENOMEM; - mlog_errno(status); - goto leave; - } - - /* get security xattr */ - status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si); - if (status) { - if (status == -EOPNOTSUPP) - si.enable = 0; - else { - mlog_errno(status); - goto leave; - } - } - - /* calculate meta data/clusters for setting security and acl xattr */ - status = ocfs2_calc_xattr_init(dir, parent_fe_bh, mode, - &si, &want_clusters, - &xattr_credits, &want_meta); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - /* Reserve a cluster if creating an extent based directory. */ - if (S_ISDIR(mode) && !ocfs2_supports_inline_data(osb)) { - want_clusters += 1; - - /* Dir indexing requires extra space as well */ - if (ocfs2_supports_indexed_dirs(osb)) - want_meta++; - } - - status = ocfs2_reserve_new_metadata_blocks(osb, want_meta, &meta_ac); - if (status < 0) { - if (status != -ENOSPC) - mlog_errno(status); - goto leave; - } - - status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac); - if (status < 0) { - if (status != -ENOSPC) - mlog_errno(status); - goto leave; - } - - handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, - S_ISDIR(mode), - xattr_credits)); - if (IS_ERR(handle)) { - status = PTR_ERR(handle); - handle = NULL; - mlog_errno(status); - goto leave; - } - - /* Starting to change things, restart is no longer possible. */ - ocfs2_block_signals(&oldset); - did_block_signals = 1; - - status = dquot_alloc_inode(inode); - if (status) - goto leave; - did_quota_inode = 1; - - /* do the real work now. */ - status = ocfs2_mknod_locked(osb, dir, inode, dev, - &new_fe_bh, parent_fe_bh, handle, - inode_ac); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - if (S_ISDIR(mode)) { - status = ocfs2_fill_new_dir(osb, handle, dir, inode, - new_fe_bh, data_ac, meta_ac); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - status = ocfs2_journal_access_di(handle, INODE_CACHE(dir), - parent_fe_bh, - OCFS2_JOURNAL_ACCESS_WRITE); - if (status < 0) { - mlog_errno(status); - goto leave; - } - ocfs2_add_links_count(dirfe, 1); - ocfs2_journal_dirty(handle, parent_fe_bh); - inc_nlink(dir); - } - - status = ocfs2_init_acl(handle, inode, dir, new_fe_bh, parent_fe_bh, - meta_ac, data_ac); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - if (si.enable) { - status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si, - meta_ac, data_ac); - if (status < 0) { - mlog_errno(status); - goto leave; - } - } - - /* - * Do this before adding the entry to the directory. We add - * also set d_op after success so that ->d_iput() will cleanup - * the dentry lock even if ocfs2_add_entry() fails below. - */ - status = ocfs2_dentry_attach_lock(dentry, inode, - OCFS2_I(dir)->ip_blkno); - if (status) { - mlog_errno(status); - goto leave; - } - - status = ocfs2_add_entry(handle, dentry, inode, - OCFS2_I(inode)->ip_blkno, parent_fe_bh, - &lookup); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - insert_inode_hash(inode); - d_instantiate(dentry, inode); - status = 0; -leave: - if (status < 0 && did_quota_inode) - dquot_free_inode(inode); - if (handle) - ocfs2_commit_trans(osb, handle); - - ocfs2_inode_unlock(dir, 1); - if (did_block_signals) - ocfs2_unblock_signals(&oldset); - - brelse(new_fe_bh); - brelse(parent_fe_bh); - kfree(si.name); - kfree(si.value); - - ocfs2_free_dir_lookup_result(&lookup); - - if (inode_ac) - ocfs2_free_alloc_context(inode_ac); - - if (data_ac) - ocfs2_free_alloc_context(data_ac); - - if (meta_ac) - ocfs2_free_alloc_context(meta_ac); - - /* - * We should call iput after the i_mutex of the bitmap been - * unlocked in ocfs2_free_alloc_context, or the - * ocfs2_delete_inode will mutex_lock again. - */ - if ((status < 0) && inode) { - OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR; - clear_nlink(inode); - iput(inode); - } - - if (status) - mlog_errno(status); - - return status; -} - -static int __ocfs2_mknod_locked(struct inode *dir, - struct inode *inode, - dev_t dev, - struct buffer_head **new_fe_bh, - struct buffer_head *parent_fe_bh, - handle_t *handle, - struct ocfs2_alloc_context *inode_ac, - u64 fe_blkno, u64 suballoc_loc, u16 suballoc_bit) -{ - int status = 0; - struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); - struct ocfs2_dinode *fe = NULL; - struct ocfs2_extent_list *fel; - u16 feat; - - *new_fe_bh = NULL; - - /* populate as many fields early on as possible - many of - * these are used by the support functions here and in - * callers. */ - inode->i_ino = ino_from_blkno(osb->sb, fe_blkno); - OCFS2_I(inode)->ip_blkno = fe_blkno; - spin_lock(&osb->osb_lock); - inode->i_generation = osb->s_next_generation++; - spin_unlock(&osb->osb_lock); - - *new_fe_bh = sb_getblk(osb->sb, fe_blkno); - if (!*new_fe_bh) { - status = -EIO; - mlog_errno(status); - goto leave; - } - ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), *new_fe_bh); - - status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), - *new_fe_bh, - OCFS2_JOURNAL_ACCESS_CREATE); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - fe = (struct ocfs2_dinode *) (*new_fe_bh)->b_data; - memset(fe, 0, osb->sb->s_blocksize); - - fe->i_generation = cpu_to_le32(inode->i_generation); - fe->i_fs_generation = cpu_to_le32(osb->fs_generation); - fe->i_blkno = cpu_to_le64(fe_blkno); - fe->i_suballoc_loc = cpu_to_le64(suballoc_loc); - fe->i_suballoc_bit = cpu_to_le16(suballoc_bit); - fe->i_suballoc_slot = cpu_to_le16(inode_ac->ac_alloc_slot); - fe->i_uid = cpu_to_le32(inode->i_uid); - fe->i_gid = cpu_to_le32(inode->i_gid); - fe->i_mode = cpu_to_le16(inode->i_mode); - if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) - fe->id1.dev1.i_rdev = cpu_to_le64(huge_encode_dev(dev)); - - ocfs2_set_links_count(fe, inode->i_nlink); - - fe->i_last_eb_blk = 0; - strcpy(fe->i_signature, OCFS2_INODE_SIGNATURE); - le32_add_cpu(&fe->i_flags, OCFS2_VALID_FL); - fe->i_atime = fe->i_ctime = fe->i_mtime = - cpu_to_le64(CURRENT_TIME.tv_sec); - fe->i_mtime_nsec = fe->i_ctime_nsec = fe->i_atime_nsec = - cpu_to_le32(CURRENT_TIME.tv_nsec); - fe->i_dtime = 0; - - /* - * If supported, directories start with inline data. If inline - * isn't supported, but indexing is, we start them as indexed. - */ - feat = le16_to_cpu(fe->i_dyn_features); - if (S_ISDIR(inode->i_mode) && ocfs2_supports_inline_data(osb)) { - fe->i_dyn_features = cpu_to_le16(feat | OCFS2_INLINE_DATA_FL); - - fe->id2.i_data.id_count = cpu_to_le16( - ocfs2_max_inline_data_with_xattr(osb->sb, fe)); - } else { - fel = &fe->id2.i_list; - fel->l_tree_depth = 0; - fel->l_next_free_rec = 0; - fel->l_count = cpu_to_le16(ocfs2_extent_recs_per_inode(osb->sb)); - } - - ocfs2_journal_dirty(handle, *new_fe_bh); - - ocfs2_populate_inode(inode, fe, 1); - ocfs2_ci_set_new(osb, INODE_CACHE(inode)); - if (!ocfs2_mount_local(osb)) { - status = ocfs2_create_new_inode_locks(inode); - if (status < 0) - mlog_errno(status); - } - - status = 0; /* error in ocfs2_create_new_inode_locks is not - * critical */ - -leave: - if (status < 0) { - if (*new_fe_bh) { - brelse(*new_fe_bh); - *new_fe_bh = NULL; - } - } - - if (status) - mlog_errno(status); - return status; -} - -static int ocfs2_mknod_locked(struct ocfs2_super *osb, - struct inode *dir, - struct inode *inode, - dev_t dev, - struct buffer_head **new_fe_bh, - struct buffer_head *parent_fe_bh, - handle_t *handle, - struct ocfs2_alloc_context *inode_ac) -{ - int status = 0; - u64 suballoc_loc, fe_blkno = 0; - u16 suballoc_bit; - - *new_fe_bh = NULL; - - status = ocfs2_claim_new_inode(handle, dir, parent_fe_bh, - inode_ac, &suballoc_loc, - &suballoc_bit, &fe_blkno); - if (status < 0) { - mlog_errno(status); - return status; - } - - return __ocfs2_mknod_locked(dir, inode, dev, new_fe_bh, - parent_fe_bh, handle, inode_ac, - fe_blkno, suballoc_loc, suballoc_bit); -} - -static int ocfs2_mkdir(struct inode *dir, - struct dentry *dentry, - umode_t mode) -{ - int ret; - - trace_ocfs2_mkdir(dir, dentry, dentry->d_name.len, dentry->d_name.name, - OCFS2_I(dir)->ip_blkno, mode); - ret = ocfs2_mknod(dir, dentry, mode | S_IFDIR, 0); - if (ret) - mlog_errno(ret); - - return ret; -} - -static int ocfs2_create(struct inode *dir, - struct dentry *dentry, - umode_t mode, - struct nameidata *nd) -{ - int ret; - - trace_ocfs2_create(dir, dentry, dentry->d_name.len, dentry->d_name.name, - (unsigned long long)OCFS2_I(dir)->ip_blkno, mode); - ret = ocfs2_mknod(dir, dentry, mode | S_IFREG, 0); - if (ret) - mlog_errno(ret); - - return ret; -} - -static int ocfs2_link(struct dentry *old_dentry, - struct inode *dir, - struct dentry *dentry) -{ - handle_t *handle; - struct inode *inode = old_dentry->d_inode; - int err; - struct buffer_head *fe_bh = NULL; - struct buffer_head *parent_fe_bh = NULL; - struct ocfs2_dinode *fe = NULL; - struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); - struct ocfs2_dir_lookup_result lookup = { NULL, }; - sigset_t oldset; - - trace_ocfs2_link((unsigned long long)OCFS2_I(inode)->ip_blkno, - old_dentry->d_name.len, old_dentry->d_name.name, - dentry->d_name.len, dentry->d_name.name); - - if (S_ISDIR(inode->i_mode)) - return -EPERM; - - dquot_initialize(dir); - - err = ocfs2_inode_lock_nested(dir, &parent_fe_bh, 1, OI_LS_PARENT); - if (err < 0) { - if (err != -ENOENT) - mlog_errno(err); - return err; - } - - if (!dir->i_nlink) { - err = -ENOENT; - goto out; - } - - err = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, - dentry->d_name.len); - if (err) - goto out; - - err = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, - dentry->d_name.name, - dentry->d_name.len, &lookup); - if (err < 0) { - mlog_errno(err); - goto out; - } - - err = ocfs2_inode_lock(inode, &fe_bh, 1); - if (err < 0) { - if (err != -ENOENT) - mlog_errno(err); - goto out; - } - - fe = (struct ocfs2_dinode *) fe_bh->b_data; - if (ocfs2_read_links_count(fe) >= ocfs2_link_max(osb)) { - err = -EMLINK; - goto out_unlock_inode; - } - - handle = ocfs2_start_trans(osb, ocfs2_link_credits(osb->sb)); - if (IS_ERR(handle)) { - err = PTR_ERR(handle); - handle = NULL; - mlog_errno(err); - goto out_unlock_inode; - } - - /* Starting to change things, restart is no longer possible. */ - ocfs2_block_signals(&oldset); - - err = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh, - OCFS2_JOURNAL_ACCESS_WRITE); - if (err < 0) { - mlog_errno(err); - goto out_commit; - } - - inc_nlink(inode); - inode->i_ctime = CURRENT_TIME; - ocfs2_set_links_count(fe, inode->i_nlink); - fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); - fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); - ocfs2_journal_dirty(handle, fe_bh); - - err = ocfs2_add_entry(handle, dentry, inode, - OCFS2_I(inode)->ip_blkno, - parent_fe_bh, &lookup); - if (err) { - ocfs2_add_links_count(fe, -1); - drop_nlink(inode); - mlog_errno(err); - goto out_commit; - } - - err = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno); - if (err) { - mlog_errno(err); - goto out_commit; - } - - ihold(inode); - d_instantiate(dentry, inode); - -out_commit: - ocfs2_commit_trans(osb, handle); - ocfs2_unblock_signals(&oldset); -out_unlock_inode: - ocfs2_inode_unlock(inode, 1); - -out: - ocfs2_inode_unlock(dir, 1); - - brelse(fe_bh); - brelse(parent_fe_bh); - - ocfs2_free_dir_lookup_result(&lookup); - - if (err) - mlog_errno(err); - - return err; -} - -/* - * Takes and drops an exclusive lock on the given dentry. This will - * force other nodes to drop it. - */ -static int ocfs2_remote_dentry_delete(struct dentry *dentry) -{ - int ret; - - ret = ocfs2_dentry_lock(dentry, 1); - if (ret) - mlog_errno(ret); - else - ocfs2_dentry_unlock(dentry, 1); - - return ret; -} - -static inline int inode_is_unlinkable(struct inode *inode) -{ - if (S_ISDIR(inode->i_mode)) { - if (inode->i_nlink == 2) - return 1; - return 0; - } - - if (inode->i_nlink == 1) - return 1; - return 0; -} - -static int ocfs2_unlink(struct inode *dir, - struct dentry *dentry) -{ - int status; - int child_locked = 0; - struct inode *inode = dentry->d_inode; - struct inode *orphan_dir = NULL; - struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); - u64 blkno; - struct ocfs2_dinode *fe = NULL; - struct buffer_head *fe_bh = NULL; - struct buffer_head *parent_node_bh = NULL; - handle_t *handle = NULL; - char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; - struct ocfs2_dir_lookup_result lookup = { NULL, }; - struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; - - trace_ocfs2_unlink(dir, dentry, dentry->d_name.len, - dentry->d_name.name, - (unsigned long long)OCFS2_I(dir)->ip_blkno, - (unsigned long long)OCFS2_I(inode)->ip_blkno); - - dquot_initialize(dir); - - BUG_ON(dentry->d_parent->d_inode != dir); - - if (inode == osb->root_inode) - return -EPERM; - - status = ocfs2_inode_lock_nested(dir, &parent_node_bh, 1, - OI_LS_PARENT); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - return status; - } - - status = ocfs2_find_files_on_disk(dentry->d_name.name, - dentry->d_name.len, &blkno, dir, - &lookup); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - goto leave; - } - - if (OCFS2_I(inode)->ip_blkno != blkno) { - status = -ENOENT; - - trace_ocfs2_unlink_noent( - (unsigned long long)OCFS2_I(inode)->ip_blkno, - (unsigned long long)blkno, - OCFS2_I(inode)->ip_flags); - goto leave; - } - - status = ocfs2_inode_lock(inode, &fe_bh, 1); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - goto leave; - } - child_locked = 1; - - if (S_ISDIR(inode->i_mode)) { - if (inode->i_nlink != 2 || !ocfs2_empty_dir(inode)) { - status = -ENOTEMPTY; - goto leave; - } - } - - status = ocfs2_remote_dentry_delete(dentry); - if (status < 0) { - /* This remote delete should succeed under all normal - * circumstances. */ - mlog_errno(status); - goto leave; - } - - if (inode_is_unlinkable(inode)) { - status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, - OCFS2_I(inode)->ip_blkno, - orphan_name, &orphan_insert); - if (status < 0) { - mlog_errno(status); - goto leave; - } - } - - handle = ocfs2_start_trans(osb, ocfs2_unlink_credits(osb->sb)); - if (IS_ERR(handle)) { - status = PTR_ERR(handle); - handle = NULL; - mlog_errno(status); - goto leave; - } - - status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh, - OCFS2_JOURNAL_ACCESS_WRITE); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - fe = (struct ocfs2_dinode *) fe_bh->b_data; - - if (inode_is_unlinkable(inode)) { - status = ocfs2_orphan_add(osb, handle, inode, fe_bh, orphan_name, - &orphan_insert, orphan_dir); - if (status < 0) { - mlog_errno(status); - goto leave; - } - } - - /* delete the name from the parent dir */ - status = ocfs2_delete_entry(handle, dir, &lookup); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - if (S_ISDIR(inode->i_mode)) - drop_nlink(inode); - drop_nlink(inode); - ocfs2_set_links_count(fe, inode->i_nlink); - ocfs2_journal_dirty(handle, fe_bh); - - dir->i_ctime = dir->i_mtime = CURRENT_TIME; - if (S_ISDIR(inode->i_mode)) - drop_nlink(dir); - - status = ocfs2_mark_inode_dirty(handle, dir, parent_node_bh); - if (status < 0) { - mlog_errno(status); - if (S_ISDIR(inode->i_mode)) - inc_nlink(dir); - } - -leave: - if (handle) - ocfs2_commit_trans(osb, handle); - - if (child_locked) - ocfs2_inode_unlock(inode, 1); - - ocfs2_inode_unlock(dir, 1); - - if (orphan_dir) { - /* This was locked for us in ocfs2_prepare_orphan_dir() */ - ocfs2_inode_unlock(orphan_dir, 1); - mutex_unlock(&orphan_dir->i_mutex); - iput(orphan_dir); - } - - brelse(fe_bh); - brelse(parent_node_bh); - - ocfs2_free_dir_lookup_result(&orphan_insert); - ocfs2_free_dir_lookup_result(&lookup); - - if (status) - mlog_errno(status); - - return status; -} - -/* - * The only place this should be used is rename! - * if they have the same id, then the 1st one is the only one locked. - */ -static int ocfs2_double_lock(struct ocfs2_super *osb, - struct buffer_head **bh1, - struct inode *inode1, - struct buffer_head **bh2, - struct inode *inode2) -{ - int status; - struct ocfs2_inode_info *oi1 = OCFS2_I(inode1); - struct ocfs2_inode_info *oi2 = OCFS2_I(inode2); - struct buffer_head **tmpbh; - struct inode *tmpinode; - - trace_ocfs2_double_lock((unsigned long long)oi1->ip_blkno, - (unsigned long long)oi2->ip_blkno); - - if (*bh1) - *bh1 = NULL; - if (*bh2) - *bh2 = NULL; - - /* we always want to lock the one with the lower lockid first. */ - if (oi1->ip_blkno != oi2->ip_blkno) { - if (oi1->ip_blkno < oi2->ip_blkno) { - /* switch id1 and id2 around */ - tmpbh = bh2; - bh2 = bh1; - bh1 = tmpbh; - - tmpinode = inode2; - inode2 = inode1; - inode1 = tmpinode; - } - /* lock id2 */ - status = ocfs2_inode_lock_nested(inode2, bh2, 1, - OI_LS_RENAME1); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - goto bail; - } - } - - /* lock id1 */ - status = ocfs2_inode_lock_nested(inode1, bh1, 1, OI_LS_RENAME2); - if (status < 0) { - /* - * An error return must mean that no cluster locks - * were held on function exit. - */ - if (oi1->ip_blkno != oi2->ip_blkno) { - ocfs2_inode_unlock(inode2, 1); - brelse(*bh2); - *bh2 = NULL; - } - - if (status != -ENOENT) - mlog_errno(status); - } - - trace_ocfs2_double_lock_end( - (unsigned long long)OCFS2_I(inode1)->ip_blkno, - (unsigned long long)OCFS2_I(inode2)->ip_blkno); - -bail: - if (status) - mlog_errno(status); - return status; -} - -static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2) -{ - ocfs2_inode_unlock(inode1, 1); - - if (inode1 != inode2) - ocfs2_inode_unlock(inode2, 1); -} - -static int ocfs2_rename(struct inode *old_dir, - struct dentry *old_dentry, - struct inode *new_dir, - struct dentry *new_dentry) -{ - int status = 0, rename_lock = 0, parents_locked = 0, target_exists = 0; - int old_child_locked = 0, new_child_locked = 0, update_dot_dot = 0; - struct inode *old_inode = old_dentry->d_inode; - struct inode *new_inode = new_dentry->d_inode; - struct inode *orphan_dir = NULL; - struct ocfs2_dinode *newfe = NULL; - char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; - struct buffer_head *newfe_bh = NULL; - struct buffer_head *old_inode_bh = NULL; - struct ocfs2_super *osb = NULL; - u64 newfe_blkno, old_de_ino; - handle_t *handle = NULL; - struct buffer_head *old_dir_bh = NULL; - struct buffer_head *new_dir_bh = NULL; - u32 old_dir_nlink = old_dir->i_nlink; - struct ocfs2_dinode *old_di; - struct ocfs2_dir_lookup_result old_inode_dot_dot_res = { NULL, }; - struct ocfs2_dir_lookup_result target_lookup_res = { NULL, }; - struct ocfs2_dir_lookup_result old_entry_lookup = { NULL, }; - struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; - struct ocfs2_dir_lookup_result target_insert = { NULL, }; - - /* At some point it might be nice to break this function up a - * bit. */ - - trace_ocfs2_rename(old_dir, old_dentry, new_dir, new_dentry, - old_dentry->d_name.len, old_dentry->d_name.name, - new_dentry->d_name.len, new_dentry->d_name.name); - - dquot_initialize(old_dir); - dquot_initialize(new_dir); - - osb = OCFS2_SB(old_dir->i_sb); - - if (new_inode) { - if (!igrab(new_inode)) - BUG(); - } - - /* Assume a directory hierarchy thusly: - * a/b/c - * a/d - * a,b,c, and d are all directories. - * - * from cwd of 'a' on both nodes: - * node1: mv b/c d - * node2: mv d b/c - * - * And that's why, just like the VFS, we need a file system - * rename lock. */ - if (old_dir != new_dir && S_ISDIR(old_inode->i_mode)) { - status = ocfs2_rename_lock(osb); - if (status < 0) { - mlog_errno(status); - goto bail; - } - rename_lock = 1; - } - - /* if old and new are the same, this'll just do one lock. */ - status = ocfs2_double_lock(osb, &old_dir_bh, old_dir, - &new_dir_bh, new_dir); - if (status < 0) { - mlog_errno(status); - goto bail; - } - parents_locked = 1; - - /* make sure both dirs have bhs - * get an extra ref on old_dir_bh if old==new */ - if (!new_dir_bh) { - if (old_dir_bh) { - new_dir_bh = old_dir_bh; - get_bh(new_dir_bh); - } else { - mlog(ML_ERROR, "no old_dir_bh!\n"); - status = -EIO; - goto bail; - } - } - - /* - * Aside from allowing a meta data update, the locking here - * also ensures that the downconvert thread on other nodes - * won't have to concurrently downconvert the inode and the - * dentry locks. - */ - status = ocfs2_inode_lock_nested(old_inode, &old_inode_bh, 1, - OI_LS_PARENT); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - goto bail; - } - old_child_locked = 1; - - status = ocfs2_remote_dentry_delete(old_dentry); - if (status < 0) { - mlog_errno(status); - goto bail; - } - - if (S_ISDIR(old_inode->i_mode)) { - u64 old_inode_parent; - - update_dot_dot = 1; - status = ocfs2_find_files_on_disk("..", 2, &old_inode_parent, - old_inode, - &old_inode_dot_dot_res); - if (status) { - status = -EIO; - goto bail; - } - - if (old_inode_parent != OCFS2_I(old_dir)->ip_blkno) { - status = -EIO; - goto bail; - } - - if (!new_inode && new_dir != old_dir && - new_dir->i_nlink >= ocfs2_link_max(osb)) { - status = -EMLINK; - goto bail; - } - } - - status = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name, - old_dentry->d_name.len, - &old_de_ino); - if (status) { - status = -ENOENT; - goto bail; - } - - /* - * Check for inode number is _not_ due to possible IO errors. - * We might rmdir the source, keep it as pwd of some process - * and merrily kill the link to whatever was created under the - * same name. Goodbye sticky bit ;-< - */ - if (old_de_ino != OCFS2_I(old_inode)->ip_blkno) { - status = -ENOENT; - goto bail; - } - - /* check if the target already exists (in which case we need - * to delete it */ - status = ocfs2_find_files_on_disk(new_dentry->d_name.name, - new_dentry->d_name.len, - &newfe_blkno, new_dir, - &target_lookup_res); - /* The only error we allow here is -ENOENT because the new - * file not existing is perfectly valid. */ - if ((status < 0) && (status != -ENOENT)) { - /* If we cannot find the file specified we should just */ - /* return the error... */ - mlog_errno(status); - goto bail; - } - if (status == 0) - target_exists = 1; - - if (!target_exists && new_inode) { - /* - * Target was unlinked by another node while we were - * waiting to get to ocfs2_rename(). There isn't - * anything we can do here to help the situation, so - * bubble up the appropriate error. - */ - status = -ENOENT; - goto bail; - } - - /* In case we need to overwrite an existing file, we blow it - * away first */ - if (target_exists) { - /* VFS didn't think there existed an inode here, but - * someone else in the cluster must have raced our - * rename to create one. Today we error cleanly, in - * the future we should consider calling iget to build - * a new struct inode for this entry. */ - if (!new_inode) { - status = -EACCES; - - trace_ocfs2_rename_target_exists(new_dentry->d_name.len, - new_dentry->d_name.name); - goto bail; - } - - if (OCFS2_I(new_inode)->ip_blkno != newfe_blkno) { - status = -EACCES; - - trace_ocfs2_rename_disagree( - (unsigned long long)OCFS2_I(new_inode)->ip_blkno, - (unsigned long long)newfe_blkno, - OCFS2_I(new_inode)->ip_flags); - goto bail; - } - - status = ocfs2_inode_lock(new_inode, &newfe_bh, 1); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - goto bail; - } - new_child_locked = 1; - - status = ocfs2_remote_dentry_delete(new_dentry); - if (status < 0) { - mlog_errno(status); - goto bail; - } - - newfe = (struct ocfs2_dinode *) newfe_bh->b_data; - - trace_ocfs2_rename_over_existing( - (unsigned long long)newfe_blkno, newfe_bh, newfe_bh ? - (unsigned long long)newfe_bh->b_blocknr : 0ULL); - - if (S_ISDIR(new_inode->i_mode) || (new_inode->i_nlink == 1)) { - status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, - OCFS2_I(new_inode)->ip_blkno, - orphan_name, &orphan_insert); - if (status < 0) { - mlog_errno(status); - goto bail; - } - } - } else { - BUG_ON(new_dentry->d_parent->d_inode != new_dir); - - status = ocfs2_check_dir_for_entry(new_dir, - new_dentry->d_name.name, - new_dentry->d_name.len); - if (status) - goto bail; - - status = ocfs2_prepare_dir_for_insert(osb, new_dir, new_dir_bh, - new_dentry->d_name.name, - new_dentry->d_name.len, - &target_insert); - if (status < 0) { - mlog_errno(status); - goto bail; - } - } - - handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb)); - if (IS_ERR(handle)) { - status = PTR_ERR(handle); - handle = NULL; - mlog_errno(status); - goto bail; - } - - if (target_exists) { - if (S_ISDIR(new_inode->i_mode)) { - if (new_inode->i_nlink != 2 || - !ocfs2_empty_dir(new_inode)) { - status = -ENOTEMPTY; - goto bail; - } - } - status = ocfs2_journal_access_di(handle, INODE_CACHE(new_inode), - newfe_bh, - OCFS2_JOURNAL_ACCESS_WRITE); - if (status < 0) { - mlog_errno(status); - goto bail; - } - - if (S_ISDIR(new_inode->i_mode) || - (ocfs2_read_links_count(newfe) == 1)) { - status = ocfs2_orphan_add(osb, handle, new_inode, - newfe_bh, orphan_name, - &orphan_insert, orphan_dir); - if (status < 0) { - mlog_errno(status); - goto bail; - } - } - - /* change the dirent to point to the correct inode */ - status = ocfs2_update_entry(new_dir, handle, &target_lookup_res, - old_inode); - if (status < 0) { - mlog_errno(status); - goto bail; - } - new_dir->i_version++; - - if (S_ISDIR(new_inode->i_mode)) - ocfs2_set_links_count(newfe, 0); - else - ocfs2_add_links_count(newfe, -1); - ocfs2_journal_dirty(handle, newfe_bh); - } else { - /* if the name was not found in new_dir, add it now */ - status = ocfs2_add_entry(handle, new_dentry, old_inode, - OCFS2_I(old_inode)->ip_blkno, - new_dir_bh, &target_insert); - } - - old_inode->i_ctime = CURRENT_TIME; - mark_inode_dirty(old_inode); - - status = ocfs2_journal_access_di(handle, INODE_CACHE(old_inode), - old_inode_bh, - OCFS2_JOURNAL_ACCESS_WRITE); - if (status >= 0) { - old_di = (struct ocfs2_dinode *) old_inode_bh->b_data; - - old_di->i_ctime = cpu_to_le64(old_inode->i_ctime.tv_sec); - old_di->i_ctime_nsec = cpu_to_le32(old_inode->i_ctime.tv_nsec); - ocfs2_journal_dirty(handle, old_inode_bh); - } else - mlog_errno(status); - - /* - * Now that the name has been added to new_dir, remove the old name. - * - * We don't keep any directory entry context around until now - * because the insert might have changed the type of directory - * we're dealing with. - */ - status = ocfs2_find_entry(old_dentry->d_name.name, - old_dentry->d_name.len, old_dir, - &old_entry_lookup); - if (status) - goto bail; - - status = ocfs2_delete_entry(handle, old_dir, &old_entry_lookup); - if (status < 0) { - mlog_errno(status); - goto bail; - } - - if (new_inode) { - drop_nlink(new_inode); - new_inode->i_ctime = CURRENT_TIME; - } - old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME; - - if (update_dot_dot) { - status = ocfs2_update_entry(old_inode, handle, - &old_inode_dot_dot_res, new_dir); - drop_nlink(old_dir); - if (new_inode) { - drop_nlink(new_inode); - } else { - inc_nlink(new_dir); - mark_inode_dirty(new_dir); - } - } - mark_inode_dirty(old_dir); - ocfs2_mark_inode_dirty(handle, old_dir, old_dir_bh); - if (new_inode) { - mark_inode_dirty(new_inode); - ocfs2_mark_inode_dirty(handle, new_inode, newfe_bh); - } - - if (old_dir != new_dir) { - /* Keep the same times on both directories.*/ - new_dir->i_ctime = new_dir->i_mtime = old_dir->i_ctime; - - /* - * This will also pick up the i_nlink change from the - * block above. - */ - ocfs2_mark_inode_dirty(handle, new_dir, new_dir_bh); - } - - if (old_dir_nlink != old_dir->i_nlink) { - if (!old_dir_bh) { - mlog(ML_ERROR, "need to change nlink for old dir " - "%llu from %d to %d but bh is NULL!\n", - (unsigned long long)OCFS2_I(old_dir)->ip_blkno, - (int)old_dir_nlink, old_dir->i_nlink); - } else { - struct ocfs2_dinode *fe; - status = ocfs2_journal_access_di(handle, - INODE_CACHE(old_dir), - old_dir_bh, - OCFS2_JOURNAL_ACCESS_WRITE); - fe = (struct ocfs2_dinode *) old_dir_bh->b_data; - ocfs2_set_links_count(fe, old_dir->i_nlink); - ocfs2_journal_dirty(handle, old_dir_bh); - } - } - ocfs2_dentry_move(old_dentry, new_dentry, old_dir, new_dir); - status = 0; -bail: - if (rename_lock) - ocfs2_rename_unlock(osb); - - if (handle) - ocfs2_commit_trans(osb, handle); - - if (parents_locked) - ocfs2_double_unlock(old_dir, new_dir); - - if (old_child_locked) - ocfs2_inode_unlock(old_inode, 1); - - if (new_child_locked) - ocfs2_inode_unlock(new_inode, 1); - - if (orphan_dir) { - /* This was locked for us in ocfs2_prepare_orphan_dir() */ - ocfs2_inode_unlock(orphan_dir, 1); - mutex_unlock(&orphan_dir->i_mutex); - iput(orphan_dir); - } - - if (new_inode) - sync_mapping_buffers(old_inode->i_mapping); - - if (new_inode) - iput(new_inode); - - ocfs2_free_dir_lookup_result(&target_lookup_res); - ocfs2_free_dir_lookup_result(&old_entry_lookup); - ocfs2_free_dir_lookup_result(&old_inode_dot_dot_res); - ocfs2_free_dir_lookup_result(&orphan_insert); - ocfs2_free_dir_lookup_result(&target_insert); - - brelse(newfe_bh); - brelse(old_inode_bh); - brelse(old_dir_bh); - brelse(new_dir_bh); - - if (status) - mlog_errno(status); - - return status; -} - -/* - * we expect i_size = strlen(symname). Copy symname into the file - * data, including the null terminator. - */ -static int ocfs2_create_symlink_data(struct ocfs2_super *osb, - handle_t *handle, - struct inode *inode, - const char *symname) -{ - struct buffer_head **bhs = NULL; - const char *c; - struct super_block *sb = osb->sb; - u64 p_blkno, p_blocks; - int virtual, blocks, status, i, bytes_left; - - bytes_left = i_size_read(inode) + 1; - /* we can't trust i_blocks because we're actually going to - * write i_size + 1 bytes. */ - blocks = (bytes_left + sb->s_blocksize - 1) >> sb->s_blocksize_bits; - - trace_ocfs2_create_symlink_data((unsigned long long)inode->i_blocks, - i_size_read(inode), blocks); - - /* Sanity check -- make sure we're going to fit. */ - if (bytes_left > - ocfs2_clusters_to_bytes(sb, OCFS2_I(inode)->ip_clusters)) { - status = -EIO; - mlog_errno(status); - goto bail; - } - - bhs = kcalloc(blocks, sizeof(struct buffer_head *), GFP_KERNEL); - if (!bhs) { - status = -ENOMEM; - mlog_errno(status); - goto bail; - } - - status = ocfs2_extent_map_get_blocks(inode, 0, &p_blkno, &p_blocks, - NULL); - if (status < 0) { - mlog_errno(status); - goto bail; - } - - /* links can never be larger than one cluster so we know this - * is all going to be contiguous, but do a sanity check - * anyway. */ - if ((p_blocks << sb->s_blocksize_bits) < bytes_left) { - status = -EIO; - mlog_errno(status); - goto bail; - } - - virtual = 0; - while(bytes_left > 0) { - c = &symname[virtual * sb->s_blocksize]; - - bhs[virtual] = sb_getblk(sb, p_blkno); - if (!bhs[virtual]) { - status = -ENOMEM; - mlog_errno(status); - goto bail; - } - ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), - bhs[virtual]); - - status = ocfs2_journal_access(handle, INODE_CACHE(inode), - bhs[virtual], - OCFS2_JOURNAL_ACCESS_CREATE); - if (status < 0) { - mlog_errno(status); - goto bail; - } - - memset(bhs[virtual]->b_data, 0, sb->s_blocksize); - - memcpy(bhs[virtual]->b_data, c, - (bytes_left > sb->s_blocksize) ? sb->s_blocksize : - bytes_left); - - ocfs2_journal_dirty(handle, bhs[virtual]); - - virtual++; - p_blkno++; - bytes_left -= sb->s_blocksize; - } - - status = 0; -bail: - - if (bhs) { - for(i = 0; i < blocks; i++) - brelse(bhs[i]); - kfree(bhs); - } - - if (status) - mlog_errno(status); - return status; -} - -static int ocfs2_symlink(struct inode *dir, - struct dentry *dentry, - const char *symname) -{ - int status, l, credits; - u64 newsize; - struct ocfs2_super *osb = NULL; - struct inode *inode = NULL; - struct super_block *sb; - struct buffer_head *new_fe_bh = NULL; - struct buffer_head *parent_fe_bh = NULL; - struct ocfs2_dinode *fe = NULL; - struct ocfs2_dinode *dirfe; - handle_t *handle = NULL; - struct ocfs2_alloc_context *inode_ac = NULL; - struct ocfs2_alloc_context *data_ac = NULL; - struct ocfs2_alloc_context *xattr_ac = NULL; - int want_clusters = 0; - int xattr_credits = 0; - struct ocfs2_security_xattr_info si = { - .enable = 1, - }; - int did_quota = 0, did_quota_inode = 0; - struct ocfs2_dir_lookup_result lookup = { NULL, }; - sigset_t oldset; - int did_block_signals = 0; - - trace_ocfs2_symlink_begin(dir, dentry, symname, - dentry->d_name.len, dentry->d_name.name); - - dquot_initialize(dir); - - sb = dir->i_sb; - osb = OCFS2_SB(sb); - - l = strlen(symname) + 1; - - credits = ocfs2_calc_symlink_credits(sb); - - /* lock the parent directory */ - status = ocfs2_inode_lock(dir, &parent_fe_bh, 1); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - return status; - } - - dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data; - if (!ocfs2_read_links_count(dirfe)) { - /* can't make a file in a deleted directory. */ - status = -ENOENT; - goto bail; - } - - status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, - dentry->d_name.len); - if (status) - goto bail; - - status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, - dentry->d_name.name, - dentry->d_name.len, &lookup); - if (status < 0) { - mlog_errno(status); - goto bail; - } - - status = ocfs2_reserve_new_inode(osb, &inode_ac); - if (status < 0) { - if (status != -ENOSPC) - mlog_errno(status); - goto bail; - } - - inode = ocfs2_get_init_inode(dir, S_IFLNK | S_IRWXUGO); - if (!inode) { - status = -ENOMEM; - mlog_errno(status); - goto bail; - } - - /* get security xattr */ - status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si); - if (status) { - if (status == -EOPNOTSUPP) - si.enable = 0; - else { - mlog_errno(status); - goto bail; - } - } - - /* calculate meta data/clusters for setting security xattr */ - if (si.enable) { - status = ocfs2_calc_security_init(dir, &si, &want_clusters, - &xattr_credits, &xattr_ac); - if (status < 0) { - mlog_errno(status); - goto bail; - } - } - - /* don't reserve bitmap space for fast symlinks. */ - if (l > ocfs2_fast_symlink_chars(sb)) - want_clusters += 1; - - status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac); - if (status < 0) { - if (status != -ENOSPC) - mlog_errno(status); - goto bail; - } - - handle = ocfs2_start_trans(osb, credits + xattr_credits); - if (IS_ERR(handle)) { - status = PTR_ERR(handle); - handle = NULL; - mlog_errno(status); - goto bail; - } - - /* Starting to change things, restart is no longer possible. */ - ocfs2_block_signals(&oldset); - did_block_signals = 1; - - status = dquot_alloc_inode(inode); - if (status) - goto bail; - did_quota_inode = 1; - - trace_ocfs2_symlink_create(dir, dentry, dentry->d_name.len, - dentry->d_name.name, - (unsigned long long)OCFS2_I(dir)->ip_blkno, - inode->i_mode); - - status = ocfs2_mknod_locked(osb, dir, inode, - 0, &new_fe_bh, parent_fe_bh, handle, - inode_ac); - if (status < 0) { - mlog_errno(status); - goto bail; - } - - fe = (struct ocfs2_dinode *) new_fe_bh->b_data; - inode->i_rdev = 0; - newsize = l - 1; - if (l > ocfs2_fast_symlink_chars(sb)) { - u32 offset = 0; - - inode->i_op = &ocfs2_symlink_inode_operations; - status = dquot_alloc_space_nodirty(inode, - ocfs2_clusters_to_bytes(osb->sb, 1)); - if (status) - goto bail; - did_quota = 1; - status = ocfs2_add_inode_data(osb, inode, &offset, 1, 0, - new_fe_bh, - handle, data_ac, NULL, - NULL); - if (status < 0) { - if (status != -ENOSPC && status != -EINTR) { - mlog(ML_ERROR, - "Failed to extend file to %llu\n", - (unsigned long long)newsize); - mlog_errno(status); - status = -ENOSPC; - } - goto bail; - } - i_size_write(inode, newsize); - inode->i_blocks = ocfs2_inode_sector_count(inode); - } else { - inode->i_op = &ocfs2_fast_symlink_inode_operations; - memcpy((char *) fe->id2.i_symlink, symname, l); - i_size_write(inode, newsize); - inode->i_blocks = 0; - } - - status = ocfs2_mark_inode_dirty(handle, inode, new_fe_bh); - if (status < 0) { - mlog_errno(status); - goto bail; - } - - if (!ocfs2_inode_is_fast_symlink(inode)) { - status = ocfs2_create_symlink_data(osb, handle, inode, - symname); - if (status < 0) { - mlog_errno(status); - goto bail; - } - } - - if (si.enable) { - status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si, - xattr_ac, data_ac); - if (status < 0) { - mlog_errno(status); - goto bail; - } - } - - /* - * Do this before adding the entry to the directory. We add - * also set d_op after success so that ->d_iput() will cleanup - * the dentry lock even if ocfs2_add_entry() fails below. - */ - status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno); - if (status) { - mlog_errno(status); - goto bail; - } - - status = ocfs2_add_entry(handle, dentry, inode, - le64_to_cpu(fe->i_blkno), parent_fe_bh, - &lookup); - if (status < 0) { - mlog_errno(status); - goto bail; - } - - insert_inode_hash(inode); - d_instantiate(dentry, inode); -bail: - if (status < 0 && did_quota) - dquot_free_space_nodirty(inode, - ocfs2_clusters_to_bytes(osb->sb, 1)); - if (status < 0 && did_quota_inode) - dquot_free_inode(inode); - if (handle) - ocfs2_commit_trans(osb, handle); - - ocfs2_inode_unlock(dir, 1); - if (did_block_signals) - ocfs2_unblock_signals(&oldset); - - brelse(new_fe_bh); - brelse(parent_fe_bh); - kfree(si.name); - kfree(si.value); - ocfs2_free_dir_lookup_result(&lookup); - if (inode_ac) - ocfs2_free_alloc_context(inode_ac); - if (data_ac) - ocfs2_free_alloc_context(data_ac); - if (xattr_ac) - ocfs2_free_alloc_context(xattr_ac); - if ((status < 0) && inode) { - OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR; - clear_nlink(inode); - iput(inode); - } - - if (status) - mlog_errno(status); - - return status; -} - -static int ocfs2_blkno_stringify(u64 blkno, char *name) -{ - int status, namelen; - - namelen = snprintf(name, OCFS2_ORPHAN_NAMELEN + 1, "%016llx", - (long long)blkno); - if (namelen <= 0) { - if (namelen) - status = namelen; - else - status = -EINVAL; - mlog_errno(status); - goto bail; - } - if (namelen != OCFS2_ORPHAN_NAMELEN) { - status = -EINVAL; - mlog_errno(status); - goto bail; - } - - trace_ocfs2_blkno_stringify(blkno, name, namelen); - - status = 0; -bail: - if (status < 0) - mlog_errno(status); - return status; -} - -static int ocfs2_lookup_lock_orphan_dir(struct ocfs2_super *osb, - struct inode **ret_orphan_dir, - struct buffer_head **ret_orphan_dir_bh) -{ - struct inode *orphan_dir_inode; - struct buffer_head *orphan_dir_bh = NULL; - int ret = 0; - - orphan_dir_inode = ocfs2_get_system_file_inode(osb, - ORPHAN_DIR_SYSTEM_INODE, - osb->slot_num); - if (!orphan_dir_inode) { - ret = -ENOENT; - mlog_errno(ret); - return ret; - } - - mutex_lock(&orphan_dir_inode->i_mutex); - - ret = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); - if (ret < 0) { - mutex_unlock(&orphan_dir_inode->i_mutex); - iput(orphan_dir_inode); - - mlog_errno(ret); - return ret; - } - - *ret_orphan_dir = orphan_dir_inode; - *ret_orphan_dir_bh = orphan_dir_bh; - - return 0; -} - -static int __ocfs2_prepare_orphan_dir(struct inode *orphan_dir_inode, - struct buffer_head *orphan_dir_bh, - u64 blkno, - char *name, - struct ocfs2_dir_lookup_result *lookup) -{ - int ret; - struct ocfs2_super *osb = OCFS2_SB(orphan_dir_inode->i_sb); - - ret = ocfs2_blkno_stringify(blkno, name); - if (ret < 0) { - mlog_errno(ret); - return ret; - } - - ret = ocfs2_prepare_dir_for_insert(osb, orphan_dir_inode, - orphan_dir_bh, name, - OCFS2_ORPHAN_NAMELEN, lookup); - if (ret < 0) { - mlog_errno(ret); - return ret; - } - - return 0; -} - -/** - * ocfs2_prepare_orphan_dir() - Prepare an orphan directory for - * insertion of an orphan. - * @osb: ocfs2 file system - * @ret_orphan_dir: Orphan dir inode - returned locked! - * @blkno: Actual block number of the inode to be inserted into orphan dir. - * @lookup: dir lookup result, to be passed back into functions like - * ocfs2_orphan_add - * - * Returns zero on success and the ret_orphan_dir, name and lookup - * fields will be populated. - * - * Returns non-zero on failure. - */ -static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb, - struct inode **ret_orphan_dir, - u64 blkno, - char *name, - struct ocfs2_dir_lookup_result *lookup) -{ - struct inode *orphan_dir_inode = NULL; - struct buffer_head *orphan_dir_bh = NULL; - int ret = 0; - - ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir_inode, - &orphan_dir_bh); - if (ret < 0) { - mlog_errno(ret); - return ret; - } - - ret = __ocfs2_prepare_orphan_dir(orphan_dir_inode, orphan_dir_bh, - blkno, name, lookup); - if (ret < 0) { - mlog_errno(ret); - goto out; - } - - *ret_orphan_dir = orphan_dir_inode; - -out: - brelse(orphan_dir_bh); - - if (ret) { - ocfs2_inode_unlock(orphan_dir_inode, 1); - mutex_unlock(&orphan_dir_inode->i_mutex); - iput(orphan_dir_inode); - } - - if (ret) - mlog_errno(ret); - return ret; -} - -static int ocfs2_orphan_add(struct ocfs2_super *osb, - handle_t *handle, - struct inode *inode, - struct buffer_head *fe_bh, - char *name, - struct ocfs2_dir_lookup_result *lookup, - struct inode *orphan_dir_inode) -{ - struct buffer_head *orphan_dir_bh = NULL; - int status = 0; - struct ocfs2_dinode *orphan_fe; - struct ocfs2_dinode *fe = (struct ocfs2_dinode *) fe_bh->b_data; - - trace_ocfs2_orphan_add_begin( - (unsigned long long)OCFS2_I(inode)->ip_blkno); - - status = ocfs2_read_inode_block(orphan_dir_inode, &orphan_dir_bh); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - status = ocfs2_journal_access_di(handle, - INODE_CACHE(orphan_dir_inode), - orphan_dir_bh, - OCFS2_JOURNAL_ACCESS_WRITE); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - /* we're a cluster, and nlink can change on disk from - * underneath us... */ - orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data; - if (S_ISDIR(inode->i_mode)) - ocfs2_add_links_count(orphan_fe, 1); - set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe)); - ocfs2_journal_dirty(handle, orphan_dir_bh); - - status = __ocfs2_add_entry(handle, orphan_dir_inode, name, - OCFS2_ORPHAN_NAMELEN, inode, - OCFS2_I(inode)->ip_blkno, - orphan_dir_bh, lookup); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - /* - * We're going to journal the change of i_flags and i_orphaned_slot. - * It's safe anyway, though some callers may duplicate the journaling. - * Journaling within the func just make the logic look more - * straightforward. - */ - status = ocfs2_journal_access_di(handle, - INODE_CACHE(inode), - fe_bh, - OCFS2_JOURNAL_ACCESS_WRITE); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - le32_add_cpu(&fe->i_flags, OCFS2_ORPHANED_FL); - OCFS2_I(inode)->ip_flags &= ~OCFS2_INODE_SKIP_ORPHAN_DIR; - - /* Record which orphan dir our inode now resides - * in. delete_inode will use this to determine which orphan - * dir to lock. */ - fe->i_orphaned_slot = cpu_to_le16(osb->slot_num); - - ocfs2_journal_dirty(handle, fe_bh); - - trace_ocfs2_orphan_add_end((unsigned long long)OCFS2_I(inode)->ip_blkno, - osb->slot_num); - -leave: - brelse(orphan_dir_bh); - - if (status) - mlog_errno(status); - return status; -} - -/* unlike orphan_add, we expect the orphan dir to already be locked here. */ -int ocfs2_orphan_del(struct ocfs2_super *osb, - handle_t *handle, - struct inode *orphan_dir_inode, - struct inode *inode, - struct buffer_head *orphan_dir_bh) -{ - char name[OCFS2_ORPHAN_NAMELEN + 1]; - struct ocfs2_dinode *orphan_fe; - int status = 0; - struct ocfs2_dir_lookup_result lookup = { NULL, }; - - status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno, name); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - trace_ocfs2_orphan_del( - (unsigned long long)OCFS2_I(orphan_dir_inode)->ip_blkno, - name, OCFS2_ORPHAN_NAMELEN); - - /* find it's spot in the orphan directory */ - status = ocfs2_find_entry(name, OCFS2_ORPHAN_NAMELEN, orphan_dir_inode, - &lookup); - if (status) { - mlog_errno(status); - goto leave; - } - - /* remove it from the orphan directory */ - status = ocfs2_delete_entry(handle, orphan_dir_inode, &lookup); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - status = ocfs2_journal_access_di(handle, - INODE_CACHE(orphan_dir_inode), - orphan_dir_bh, - OCFS2_JOURNAL_ACCESS_WRITE); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - /* do the i_nlink dance! :) */ - orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data; - if (S_ISDIR(inode->i_mode)) - ocfs2_add_links_count(orphan_fe, -1); - set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe)); - ocfs2_journal_dirty(handle, orphan_dir_bh); - -leave: - ocfs2_free_dir_lookup_result(&lookup); - - if (status) - mlog_errno(status); - return status; -} - -/** - * ocfs2_prep_new_orphaned_file() - Prepare the orphan dir to receive a newly - * allocated file. This is different from the typical 'add to orphan dir' - * operation in that the inode does not yet exist. This is a problem because - * the orphan dir stringifies the inode block number to come up with it's - * dirent. Obviously if the inode does not yet exist we have a chicken and egg - * problem. This function works around it by calling deeper into the orphan - * and suballoc code than other callers. Use this only by necessity. - * @dir: The directory which this inode will ultimately wind up under - not the - * orphan dir! - * @dir_bh: buffer_head the @dir inode block - * @orphan_name: string of length (CFS2_ORPHAN_NAMELEN + 1). Will be filled - * with the string to be used for orphan dirent. Pass back to the orphan dir - * code. - * @ret_orphan_dir: orphan dir inode returned to be passed back into orphan - * dir code. - * @ret_di_blkno: block number where the new inode will be allocated. - * @orphan_insert: Dir insert context to be passed back into orphan dir code. - * @ret_inode_ac: Inode alloc context to be passed back to the allocator. - * - * Returns zero on success and the ret_orphan_dir, name and lookup - * fields will be populated. - * - * Returns non-zero on failure. - */ -static int ocfs2_prep_new_orphaned_file(struct inode *dir, - struct buffer_head *dir_bh, - char *orphan_name, - struct inode **ret_orphan_dir, - u64 *ret_di_blkno, - struct ocfs2_dir_lookup_result *orphan_insert, - struct ocfs2_alloc_context **ret_inode_ac) -{ - int ret; - u64 di_blkno; - struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); - struct inode *orphan_dir = NULL; - struct buffer_head *orphan_dir_bh = NULL; - struct ocfs2_alloc_context *inode_ac = NULL; - - ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir, &orphan_dir_bh); - if (ret < 0) { - mlog_errno(ret); - return ret; - } - - /* reserve an inode spot */ - ret = ocfs2_reserve_new_inode(osb, &inode_ac); - if (ret < 0) { - if (ret != -ENOSPC) - mlog_errno(ret); - goto out; - } - - ret = ocfs2_find_new_inode_loc(dir, dir_bh, inode_ac, - &di_blkno); - if (ret) { - mlog_errno(ret); - goto out; - } - - ret = __ocfs2_prepare_orphan_dir(orphan_dir, orphan_dir_bh, - di_blkno, orphan_name, orphan_insert); - if (ret < 0) { - mlog_errno(ret); - goto out; - } - -out: - if (ret == 0) { - *ret_orphan_dir = orphan_dir; - *ret_di_blkno = di_blkno; - *ret_inode_ac = inode_ac; - /* - * orphan_name and orphan_insert are already up to - * date via prepare_orphan_dir - */ - } else { - /* Unroll reserve_new_inode* */ - if (inode_ac) - ocfs2_free_alloc_context(inode_ac); - - /* Unroll orphan dir locking */ - mutex_unlock(&orphan_dir->i_mutex); - ocfs2_inode_unlock(orphan_dir, 1); - iput(orphan_dir); - } - - brelse(orphan_dir_bh); - - return 0; -} - -int ocfs2_create_inode_in_orphan(struct inode *dir, - int mode, - struct inode **new_inode) -{ - int status, did_quota_inode = 0; - struct inode *inode = NULL; - struct inode *orphan_dir = NULL; - struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); - struct ocfs2_dinode *di = NULL; - handle_t *handle = NULL; - char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; - struct buffer_head *parent_di_bh = NULL; - struct buffer_head *new_di_bh = NULL; - struct ocfs2_alloc_context *inode_ac = NULL; - struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; - u64 uninitialized_var(di_blkno), suballoc_loc; - u16 suballoc_bit; - - status = ocfs2_inode_lock(dir, &parent_di_bh, 1); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - return status; - } - - status = ocfs2_prep_new_orphaned_file(dir, parent_di_bh, - orphan_name, &orphan_dir, - &di_blkno, &orphan_insert, &inode_ac); - if (status < 0) { - if (status != -ENOSPC) - mlog_errno(status); - goto leave; - } - - inode = ocfs2_get_init_inode(dir, mode); - if (!inode) { - status = -ENOMEM; - mlog_errno(status); - goto leave; - } - - handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, 0, 0)); - if (IS_ERR(handle)) { - status = PTR_ERR(handle); - handle = NULL; - mlog_errno(status); - goto leave; - } - - status = dquot_alloc_inode(inode); - if (status) - goto leave; - did_quota_inode = 1; - - status = ocfs2_claim_new_inode_at_loc(handle, dir, inode_ac, - &suballoc_loc, - &suballoc_bit, di_blkno); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - clear_nlink(inode); - /* do the real work now. */ - status = __ocfs2_mknod_locked(dir, inode, - 0, &new_di_bh, parent_di_bh, handle, - inode_ac, di_blkno, suballoc_loc, - suballoc_bit); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - di = (struct ocfs2_dinode *)new_di_bh->b_data; - status = ocfs2_orphan_add(osb, handle, inode, new_di_bh, orphan_name, - &orphan_insert, orphan_dir); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - /* get open lock so that only nodes can't remove it from orphan dir. */ - status = ocfs2_open_lock(inode); - if (status < 0) - mlog_errno(status); - - insert_inode_hash(inode); -leave: - if (status < 0 && did_quota_inode) - dquot_free_inode(inode); - if (handle) - ocfs2_commit_trans(osb, handle); - - if (orphan_dir) { - /* This was locked for us in ocfs2_prepare_orphan_dir() */ - ocfs2_inode_unlock(orphan_dir, 1); - mutex_unlock(&orphan_dir->i_mutex); - iput(orphan_dir); - } - - if ((status < 0) && inode) { - clear_nlink(inode); - iput(inode); - } - - if (inode_ac) - ocfs2_free_alloc_context(inode_ac); - - brelse(new_di_bh); - - if (!status) - *new_inode = inode; - - ocfs2_free_dir_lookup_result(&orphan_insert); - - ocfs2_inode_unlock(dir, 1); - brelse(parent_di_bh); - return status; -} - -int ocfs2_mv_orphaned_inode_to_new(struct inode *dir, - struct inode *inode, - struct dentry *dentry) -{ - int status = 0; - struct buffer_head *parent_di_bh = NULL; - handle_t *handle = NULL; - struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); - struct ocfs2_dinode *dir_di, *di; - struct inode *orphan_dir_inode = NULL; - struct buffer_head *orphan_dir_bh = NULL; - struct buffer_head *di_bh = NULL; - struct ocfs2_dir_lookup_result lookup = { NULL, }; - - trace_ocfs2_mv_orphaned_inode_to_new(dir, dentry, - dentry->d_name.len, dentry->d_name.name, - (unsigned long long)OCFS2_I(dir)->ip_blkno, - (unsigned long long)OCFS2_I(inode)->ip_blkno); - - status = ocfs2_inode_lock(dir, &parent_di_bh, 1); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); - return status; - } - - dir_di = (struct ocfs2_dinode *) parent_di_bh->b_data; - if (!dir_di->i_links_count) { - /* can't make a file in a deleted directory. */ - status = -ENOENT; - goto leave; - } - - status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, - dentry->d_name.len); - if (status) - goto leave; - - /* get a spot inside the dir. */ - status = ocfs2_prepare_dir_for_insert(osb, dir, parent_di_bh, - dentry->d_name.name, - dentry->d_name.len, &lookup); - if (status < 0) { - mlog_errno(status); - goto leave; - } - - orphan_dir_inode = ocfs2_get_system_file_inode(osb, - ORPHAN_DIR_SYSTEM_INODE, - osb->slot_num); - if (!orphan_dir_inode) { - status = -EEXIST; - mlog_errno(status); - goto leave; - } - - mutex_lock(&orphan_dir_inode->i_mutex); - - status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); - if (status < 0) { - mlog_errno(status); - mutex_unlock(&orphan_dir_inode->i_mutex); - iput(orphan_dir_inode); - goto leave; - } - - status = ocfs2_read_inode_block(inode, &di_bh); - if (status < 0) { - mlog_errno(status); - goto orphan_unlock; - } - - handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb)); - if (IS_ERR(handle)) { - status = PTR_ERR(handle); - handle = NULL; - mlog_errno(status); - goto orphan_unlock; - } - - status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), - di_bh, OCFS2_JOURNAL_ACCESS_WRITE); - if (status < 0) { - mlog_errno(status); - goto out_commit; - } - - status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode, - orphan_dir_bh); - if (status < 0) { - mlog_errno(status); - goto out_commit; - } - - di = (struct ocfs2_dinode *)di_bh->b_data; - le32_add_cpu(&di->i_flags, -OCFS2_ORPHANED_FL); - di->i_orphaned_slot = 0; - set_nlink(inode, 1); - ocfs2_set_links_count(di, inode->i_nlink); - ocfs2_journal_dirty(handle, di_bh); - - status = ocfs2_add_entry(handle, dentry, inode, - OCFS2_I(inode)->ip_blkno, parent_di_bh, - &lookup); - if (status < 0) { - mlog_errno(status); - goto out_commit; - } - - status = ocfs2_dentry_attach_lock(dentry, inode, - OCFS2_I(dir)->ip_blkno); - if (status) { - mlog_errno(status); - goto out_commit; - } - - d_instantiate(dentry, inode); - status = 0; -out_commit: - ocfs2_commit_trans(osb, handle); -orphan_unlock: - ocfs2_inode_unlock(orphan_dir_inode, 1); - mutex_unlock(&orphan_dir_inode->i_mutex); - iput(orphan_dir_inode); -leave: - - ocfs2_inode_unlock(dir, 1); - - brelse(di_bh); - brelse(parent_di_bh); - brelse(orphan_dir_bh); - - ocfs2_free_dir_lookup_result(&lookup); - - if (status) - mlog_errno(status); - - return status; -} - -const struct inode_operations ocfs2_dir_iops = { - .create = ocfs2_create, - .lookup = ocfs2_lookup, - .link = ocfs2_link, - .unlink = ocfs2_unlink, - .rmdir = ocfs2_unlink, - .symlink = ocfs2_symlink, - .mkdir = ocfs2_mkdir, - .mknod = ocfs2_mknod, - .rename = ocfs2_rename, - .setattr = ocfs2_setattr, - .getattr = ocfs2_getattr, - .permission = ocfs2_permission, - .setxattr = generic_setxattr, - .getxattr = generic_getxattr, - .listxattr = ocfs2_listxattr, - .removexattr = generic_removexattr, - .fiemap = ocfs2_fiemap, - .get_acl = ocfs2_iop_get_acl, -}; |