| /* -*- mode: c; c-basic-offset: 8; -*- |
| * vim: noexpandtab sw=8 ts=8 sts=0: |
| * |
| * inode.c |
| * |
| * vfs' aops, fops, dops and iops |
| * |
| * Copyright (C) 2002, 2004 Oracle. All rights reserved. |
| * |
| * 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/pagemap.h> |
| |
| #include <asm/byteorder.h> |
| |
| #define MLOG_MASK_PREFIX ML_INODE |
| #include <cluster/masklog.h> |
| |
| #include "ocfs2.h" |
| |
| #include "alloc.h" |
| #include "dlmglue.h" |
| #include "extent_map.h" |
| #include "file.h" |
| #include "heartbeat.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 "buffer_head_io.h" |
| |
| struct ocfs2_find_inode_args |
| { |
| u64 fi_blkno; |
| unsigned long fi_ino; |
| unsigned int fi_flags; |
| unsigned int fi_sysfile_type; |
| }; |
| |
| static struct lock_class_key ocfs2_sysfile_lock_key[NUM_SYSTEM_INODES]; |
| |
| static int ocfs2_read_locked_inode(struct inode *inode, |
| struct ocfs2_find_inode_args *args); |
| static int ocfs2_init_locked_inode(struct inode *inode, void *opaque); |
| static int ocfs2_find_actor(struct inode *inode, void *opaque); |
| static int ocfs2_truncate_for_delete(struct ocfs2_super *osb, |
| struct inode *inode, |
| struct buffer_head *fe_bh); |
| |
| void ocfs2_set_inode_flags(struct inode *inode) |
| { |
| unsigned int flags = OCFS2_I(inode)->ip_attr; |
| |
| inode->i_flags &= ~(S_IMMUTABLE | |
| S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC); |
| |
| if (flags & OCFS2_IMMUTABLE_FL) |
| inode->i_flags |= S_IMMUTABLE; |
| |
| if (flags & OCFS2_SYNC_FL) |
| inode->i_flags |= S_SYNC; |
| if (flags & OCFS2_APPEND_FL) |
| inode->i_flags |= S_APPEND; |
| if (flags & OCFS2_NOATIME_FL) |
| inode->i_flags |= S_NOATIME; |
| if (flags & OCFS2_DIRSYNC_FL) |
| inode->i_flags |= S_DIRSYNC; |
| } |
| |
| /* Propagate flags from i_flags to OCFS2_I(inode)->ip_attr */ |
| void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi) |
| { |
| unsigned int flags = oi->vfs_inode.i_flags; |
| |
| oi->ip_attr &= ~(OCFS2_SYNC_FL|OCFS2_APPEND_FL| |
| OCFS2_IMMUTABLE_FL|OCFS2_NOATIME_FL|OCFS2_DIRSYNC_FL); |
| if (flags & S_SYNC) |
| oi->ip_attr |= OCFS2_SYNC_FL; |
| if (flags & S_APPEND) |
| oi->ip_attr |= OCFS2_APPEND_FL; |
| if (flags & S_IMMUTABLE) |
| oi->ip_attr |= OCFS2_IMMUTABLE_FL; |
| if (flags & S_NOATIME) |
| oi->ip_attr |= OCFS2_NOATIME_FL; |
| if (flags & S_DIRSYNC) |
| oi->ip_attr |= OCFS2_DIRSYNC_FL; |
| } |
| |
| struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags, |
| int sysfile_type) |
| { |
| struct inode *inode = NULL; |
| struct super_block *sb = osb->sb; |
| struct ocfs2_find_inode_args args; |
| |
| mlog_entry("(blkno = %llu)\n", (unsigned long long)blkno); |
| |
| /* Ok. By now we've either got the offsets passed to us by the |
| * caller, or we just pulled them off the bh. Lets do some |
| * sanity checks to make sure they're OK. */ |
| if (blkno == 0) { |
| inode = ERR_PTR(-EINVAL); |
| mlog_errno(PTR_ERR(inode)); |
| goto bail; |
| } |
| |
| args.fi_blkno = blkno; |
| args.fi_flags = flags; |
| args.fi_ino = ino_from_blkno(sb, blkno); |
| args.fi_sysfile_type = sysfile_type; |
| |
| inode = iget5_locked(sb, args.fi_ino, ocfs2_find_actor, |
| ocfs2_init_locked_inode, &args); |
| /* inode was *not* in the inode cache. 2.6.x requires |
| * us to do our own read_inode call and unlock it |
| * afterwards. */ |
| if (inode && inode->i_state & I_NEW) { |
| mlog(0, "Inode was not in inode cache, reading it.\n"); |
| ocfs2_read_locked_inode(inode, &args); |
| unlock_new_inode(inode); |
| } |
| if (inode == NULL) { |
| inode = ERR_PTR(-ENOMEM); |
| mlog_errno(PTR_ERR(inode)); |
| goto bail; |
| } |
| if (is_bad_inode(inode)) { |
| iput(inode); |
| inode = ERR_PTR(-ESTALE); |
| goto bail; |
| } |
| |
| bail: |
| if (!IS_ERR(inode)) { |
| mlog(0, "returning inode with number %llu\n", |
| (unsigned long long)OCFS2_I(inode)->ip_blkno); |
| mlog_exit_ptr(inode); |
| } |
| |
| return inode; |
| } |
| |
| |
| /* |
| * here's how inodes get read from disk: |
| * iget5_locked -> find_actor -> OCFS2_FIND_ACTOR |
| * found? : return the in-memory inode |
| * not found? : get_new_inode -> OCFS2_INIT_LOCKED_INODE |
| */ |
| |
| static int ocfs2_find_actor(struct inode *inode, void *opaque) |
| { |
| struct ocfs2_find_inode_args *args = NULL; |
| struct ocfs2_inode_info *oi = OCFS2_I(inode); |
| int ret = 0; |
| |
| mlog_entry("(0x%p, %lu, 0x%p)\n", inode, inode->i_ino, opaque); |
| |
| args = opaque; |
| |
| mlog_bug_on_msg(!inode, "No inode in find actor!\n"); |
| |
| if (oi->ip_blkno != args->fi_blkno) |
| goto bail; |
| |
| ret = 1; |
| bail: |
| mlog_exit(ret); |
| return ret; |
| } |
| |
| /* |
| * initialize the new inode, but don't do anything that would cause |
| * us to sleep. |
| * return 0 on success, 1 on failure |
| */ |
| static int ocfs2_init_locked_inode(struct inode *inode, void *opaque) |
| { |
| struct ocfs2_find_inode_args *args = opaque; |
| |
| mlog_entry("inode = %p, opaque = %p\n", inode, opaque); |
| |
| inode->i_ino = args->fi_ino; |
| OCFS2_I(inode)->ip_blkno = args->fi_blkno; |
| if (args->fi_sysfile_type != 0) |
| lockdep_set_class(&inode->i_mutex, |
| &ocfs2_sysfile_lock_key[args->fi_sysfile_type]); |
| |
| mlog_exit(0); |
| return 0; |
| } |
| |
| int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe, |
| int create_ino) |
| { |
| struct super_block *sb; |
| struct ocfs2_super *osb; |
| int status = -EINVAL; |
| |
| mlog_entry("(0x%p, size:%llu)\n", inode, |
| (unsigned long long)le64_to_cpu(fe->i_size)); |
| |
| sb = inode->i_sb; |
| osb = OCFS2_SB(sb); |
| |
| /* this means that read_inode cannot create a superblock inode |
| * today. change if needed. */ |
| if (!OCFS2_IS_VALID_DINODE(fe) || |
| !(fe->i_flags & cpu_to_le32(OCFS2_VALID_FL))) { |
| mlog(0, "Invalid dinode: i_ino=%lu, i_blkno=%llu, " |
| "signature = %.*s, flags = 0x%x\n", |
| inode->i_ino, |
| (unsigned long long)le64_to_cpu(fe->i_blkno), 7, |
| fe->i_signature, le32_to_cpu(fe->i_flags)); |
| goto bail; |
| } |
| |
| if (le32_to_cpu(fe->i_fs_generation) != osb->fs_generation) { |
| mlog(ML_ERROR, "file entry generation does not match " |
| "superblock! osb->fs_generation=%x, " |
| "fe->i_fs_generation=%x\n", |
| osb->fs_generation, le32_to_cpu(fe->i_fs_generation)); |
| goto bail; |
| } |
| |
| OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); |
| OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr); |
| OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features); |
| |
| inode->i_version = 1; |
| inode->i_generation = le32_to_cpu(fe->i_generation); |
| inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev)); |
| inode->i_mode = le16_to_cpu(fe->i_mode); |
| inode->i_uid = le32_to_cpu(fe->i_uid); |
| inode->i_gid = le32_to_cpu(fe->i_gid); |
| |
| /* Fast symlinks will have i_size but no allocated clusters. */ |
| if (S_ISLNK(inode->i_mode) && !fe->i_clusters) |
| inode->i_blocks = 0; |
| else |
| inode->i_blocks = ocfs2_inode_sector_count(inode); |
| inode->i_mapping->a_ops = &ocfs2_aops; |
| inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime); |
| inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec); |
| inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime); |
| inode->i_mtime.tv_nsec = le32_to_cpu(fe->i_mtime_nsec); |
| inode->i_ctime.tv_sec = le64_to_cpu(fe->i_ctime); |
| inode->i_ctime.tv_nsec = le32_to_cpu(fe->i_ctime_nsec); |
| |
| if (OCFS2_I(inode)->ip_blkno != le64_to_cpu(fe->i_blkno)) |
| mlog(ML_ERROR, |
| "ip_blkno %llu != i_blkno %llu!\n", |
| (unsigned long long)OCFS2_I(inode)->ip_blkno, |
| (unsigned long long)le64_to_cpu(fe->i_blkno)); |
| |
| inode->i_nlink = le16_to_cpu(fe->i_links_count); |
| |
| if (fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) |
| OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SYSTEM_FILE; |
| |
| if (fe->i_flags & cpu_to_le32(OCFS2_LOCAL_ALLOC_FL)) { |
| OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP; |
| mlog(0, "local alloc inode: i_ino=%lu\n", inode->i_ino); |
| } else if (fe->i_flags & cpu_to_le32(OCFS2_BITMAP_FL)) { |
| OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP; |
| } else if (fe->i_flags & cpu_to_le32(OCFS2_SUPER_BLOCK_FL)) { |
| mlog(0, "superblock inode: i_ino=%lu\n", inode->i_ino); |
| /* we can't actually hit this as read_inode can't |
| * handle superblocks today ;-) */ |
| BUG(); |
| } |
| |
| switch (inode->i_mode & S_IFMT) { |
| case S_IFREG: |
| inode->i_fop = &ocfs2_fops; |
| inode->i_op = &ocfs2_file_iops; |
| i_size_write(inode, le64_to_cpu(fe->i_size)); |
| break; |
| case S_IFDIR: |
| inode->i_op = &ocfs2_dir_iops; |
| inode->i_fop = &ocfs2_dops; |
| i_size_write(inode, le64_to_cpu(fe->i_size)); |
| break; |
| case S_IFLNK: |
| if (ocfs2_inode_is_fast_symlink(inode)) |
| inode->i_op = &ocfs2_fast_symlink_inode_operations; |
| else |
| inode->i_op = &ocfs2_symlink_inode_operations; |
| i_size_write(inode, le64_to_cpu(fe->i_size)); |
| break; |
| default: |
| inode->i_op = &ocfs2_special_file_iops; |
| init_special_inode(inode, inode->i_mode, |
| inode->i_rdev); |
| break; |
| } |
| |
| if (create_ino) { |
| inode->i_ino = ino_from_blkno(inode->i_sb, |
| le64_to_cpu(fe->i_blkno)); |
| |
| /* |
| * If we ever want to create system files from kernel, |
| * the generation argument to |
| * ocfs2_inode_lock_res_init() will have to change. |
| */ |
| BUG_ON(le32_to_cpu(fe->i_flags) & OCFS2_SYSTEM_FL); |
| |
| ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres, |
| OCFS2_LOCK_TYPE_META, 0, inode); |
| |
| ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres, |
| OCFS2_LOCK_TYPE_OPEN, 0, inode); |
| } |
| |
| ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_rw_lockres, |
| OCFS2_LOCK_TYPE_RW, inode->i_generation, |
| inode); |
| |
| ocfs2_set_inode_flags(inode); |
| |
| status = 0; |
| bail: |
| mlog_exit(status); |
| return status; |
| } |
| |
| static int ocfs2_read_locked_inode(struct inode *inode, |
| struct ocfs2_find_inode_args *args) |
| { |
| struct super_block *sb; |
| struct ocfs2_super *osb; |
| struct ocfs2_dinode *fe; |
| struct buffer_head *bh = NULL; |
| int status, can_lock; |
| u32 generation = 0; |
| |
| mlog_entry("(0x%p, 0x%p)\n", inode, args); |
| |
| status = -EINVAL; |
| if (inode == NULL || inode->i_sb == NULL) { |
| mlog(ML_ERROR, "bad inode\n"); |
| return status; |
| } |
| sb = inode->i_sb; |
| osb = OCFS2_SB(sb); |
| |
| if (!args) { |
| mlog(ML_ERROR, "bad inode args\n"); |
| make_bad_inode(inode); |
| return status; |
| } |
| |
| /* |
| * To improve performance of cold-cache inode stats, we take |
| * the cluster lock here if possible. |
| * |
| * Generally, OCFS2 never trusts the contents of an inode |
| * unless it's holding a cluster lock, so taking it here isn't |
| * a correctness issue as much as it is a performance |
| * improvement. |
| * |
| * There are three times when taking the lock is not a good idea: |
| * |
| * 1) During startup, before we have initialized the DLM. |
| * |
| * 2) If we are reading certain system files which never get |
| * cluster locks (local alloc, truncate log). |
| * |
| * 3) If the process doing the iget() is responsible for |
| * orphan dir recovery. We're holding the orphan dir lock and |
| * can get into a deadlock with another process on another |
| * node in ->delete_inode(). |
| * |
| * #1 and #2 can be simply solved by never taking the lock |
| * here for system files (which are the only type we read |
| * during mount). It's a heavier approach, but our main |
| * concern is user-accesible files anyway. |
| * |
| * #3 works itself out because we'll eventually take the |
| * cluster lock before trusting anything anyway. |
| */ |
| can_lock = !(args->fi_flags & OCFS2_FI_FLAG_SYSFILE) |
| && !(args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) |
| && !ocfs2_mount_local(osb); |
| |
| /* |
| * To maintain backwards compatibility with older versions of |
| * ocfs2-tools, we still store the generation value for system |
| * files. The only ones that actually matter to userspace are |
| * the journals, but it's easier and inexpensive to just flag |
| * all system files similarly. |
| */ |
| if (args->fi_flags & OCFS2_FI_FLAG_SYSFILE) |
| generation = osb->fs_generation; |
| |
| ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres, |
| OCFS2_LOCK_TYPE_META, |
| generation, inode); |
| |
| ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres, |
| OCFS2_LOCK_TYPE_OPEN, |
| 0, inode); |
| |
| if (can_lock) { |
| status = ocfs2_open_lock(inode); |
| if (status) { |
| make_bad_inode(inode); |
| mlog_errno(status); |
| return status; |
| } |
| status = ocfs2_inode_lock(inode, NULL, 0); |
| if (status) { |
| make_bad_inode(inode); |
| mlog_errno(status); |
| return status; |
| } |
| } |
| |
| if (args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) { |
| status = ocfs2_try_open_lock(inode, 0); |
| if (status) { |
| make_bad_inode(inode); |
| return status; |
| } |
| } |
| |
| status = ocfs2_read_block(osb, args->fi_blkno, &bh, 0, |
| can_lock ? inode : NULL); |
| if (status < 0) { |
| mlog_errno(status); |
| goto bail; |
| } |
| |
| status = -EINVAL; |
| fe = (struct ocfs2_dinode *) bh->b_data; |
| if (!OCFS2_IS_VALID_DINODE(fe)) { |
| mlog(0, "Invalid dinode #%llu: signature = %.*s\n", |
| (unsigned long long)args->fi_blkno, 7, |
| fe->i_signature); |
| goto bail; |
| } |
| |
| /* |
| * This is a code bug. Right now the caller needs to |
| * understand whether it is asking for a system file inode or |
| * not so the proper lock names can be built. |
| */ |
| mlog_bug_on_msg(!!(fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) != |
| !!(args->fi_flags & OCFS2_FI_FLAG_SYSFILE), |
| "Inode %llu: system file state is ambigous\n", |
| (unsigned long long)args->fi_blkno); |
| |
| if (S_ISCHR(le16_to_cpu(fe->i_mode)) || |
| S_ISBLK(le16_to_cpu(fe->i_mode))) |
| inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev)); |
| |
| if (ocfs2_populate_inode(inode, fe, 0) < 0) |
| goto bail; |
| |
| BUG_ON(args->fi_blkno != le64_to_cpu(fe->i_blkno)); |
| |
| status = 0; |
| |
| bail: |
| if (can_lock) |
| ocfs2_inode_unlock(inode, 0); |
| |
| if (status < 0) |
| make_bad_inode(inode); |
| |
| if (args && bh) |
| brelse(bh); |
| |
| mlog_exit(status); |
| return status; |
| } |
| |
| void ocfs2_sync_blockdev(struct super_block *sb) |
| { |
| sync_blockdev(sb->s_bdev); |
| } |
| |
| static int ocfs2_truncate_for_delete(struct ocfs2_super *osb, |
| struct inode *inode, |
| struct buffer_head *fe_bh) |
| { |
| int status = 0; |
| struct ocfs2_truncate_context *tc = NULL; |
| struct ocfs2_dinode *fe; |
| handle_t *handle = NULL; |
| |
| mlog_entry_void(); |
| |
| fe = (struct ocfs2_dinode *) fe_bh->b_data; |
| |
| /* |
| * This check will also skip truncate of inodes with inline |
| * data and fast symlinks. |
| */ |
| if (fe->i_clusters) { |
| handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS); |
| if (IS_ERR(handle)) { |
| status = PTR_ERR(handle); |
| mlog_errno(status); |
| goto out; |
| } |
| |
| status = ocfs2_journal_access(handle, inode, fe_bh, |
| OCFS2_JOURNAL_ACCESS_WRITE); |
| if (status < 0) { |
| mlog_errno(status); |
| goto out; |
| } |
| |
| i_size_write(inode, 0); |
| |
| status = ocfs2_mark_inode_dirty(handle, inode, fe_bh); |
| if (status < 0) { |
| mlog_errno(status); |
| goto out; |
| } |
| |
| ocfs2_commit_trans(osb, handle); |
| handle = NULL; |
| |
| status = ocfs2_prepare_truncate(osb, inode, fe_bh, &tc); |
| if (status < 0) { |
| mlog_errno(status); |
| goto out; |
| } |
| |
| status = ocfs2_commit_truncate(osb, inode, fe_bh, tc); |
| if (status < 0) { |
| mlog_errno(status); |
| goto out; |
| } |
| } |
| |
| out: |
| if (handle) |
| ocfs2_commit_trans(osb, handle); |
| mlog_exit(status); |
| return status; |
| } |
| |
| static int ocfs2_remove_inode(struct inode *inode, |
| struct buffer_head *di_bh, |
| struct inode *orphan_dir_inode, |
| struct buffer_head *orphan_dir_bh) |
| { |
| int status; |
| struct inode *inode_alloc_inode = NULL; |
| struct buffer_head *inode_alloc_bh = NULL; |
| handle_t *handle; |
| struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); |
| struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data; |
| |
| inode_alloc_inode = |
| ocfs2_get_system_file_inode(osb, INODE_ALLOC_SYSTEM_INODE, |
| le16_to_cpu(di->i_suballoc_slot)); |
| if (!inode_alloc_inode) { |
| status = -EEXIST; |
| mlog_errno(status); |
| goto bail; |
| } |
| |
| mutex_lock(&inode_alloc_inode->i_mutex); |
| status = ocfs2_inode_lock(inode_alloc_inode, &inode_alloc_bh, 1); |
| if (status < 0) { |
| mutex_unlock(&inode_alloc_inode->i_mutex); |
| |
| mlog_errno(status); |
| goto bail; |
| } |
| |
| handle = ocfs2_start_trans(osb, OCFS2_DELETE_INODE_CREDITS); |
| if (IS_ERR(handle)) { |
| status = PTR_ERR(handle); |
| mlog_errno(status); |
| goto bail_unlock; |
| } |
| |
| status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode, |
| orphan_dir_bh); |
| if (status < 0) { |
| mlog_errno(status); |
| goto bail_commit; |
| } |
| |
| /* set the inodes dtime */ |
| status = ocfs2_journal_access(handle, inode, di_bh, |
| OCFS2_JOURNAL_ACCESS_WRITE); |
| if (status < 0) { |
| mlog_errno(status); |
| goto bail_commit; |
| } |
| |
| di->i_dtime = cpu_to_le64(CURRENT_TIME.tv_sec); |
| le32_and_cpu(&di->i_flags, ~(OCFS2_VALID_FL | OCFS2_ORPHANED_FL)); |
| |
| status = ocfs2_journal_dirty(handle, di_bh); |
| if (status < 0) { |
| mlog_errno(status); |
| goto bail_commit; |
| } |
| |
| ocfs2_remove_from_cache(inode, di_bh); |
| |
| status = ocfs2_free_dinode(handle, inode_alloc_inode, |
| inode_alloc_bh, di); |
| if (status < 0) |
| mlog_errno(status); |
| |
| bail_commit: |
| ocfs2_commit_trans(osb, handle); |
| bail_unlock: |
| ocfs2_inode_unlock(inode_alloc_inode, 1); |
| mutex_unlock(&inode_alloc_inode->i_mutex); |
| brelse(inode_alloc_bh); |
| bail: |
| iput(inode_alloc_inode); |
| |
| return status; |
| } |
| |
| /* |
| * Serialize with orphan dir recovery. If the process doing |
| * recovery on this orphan dir does an iget() with the dir |
| * i_mutex held, we'll deadlock here. Instead we detect this |
| * and exit early - recovery will wipe this inode for us. |
| */ |
| static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb, |
| int slot) |
| { |
| int ret = 0; |
| |
| spin_lock(&osb->osb_lock); |
| if (ocfs2_node_map_test_bit(osb, &osb->osb_recovering_orphan_dirs, slot)) { |
| mlog(0, "Recovery is happening on orphan dir %d, will skip " |
| "this inode\n", slot); |
| ret = -EDEADLK; |
| goto out; |
| } |
| /* This signals to the orphan recovery process that it should |
| * wait for us to handle the wipe. */ |
| osb->osb_orphan_wipes[slot]++; |
| out: |
| spin_unlock(&osb->osb_lock); |
| return ret; |
| } |
| |
| static void ocfs2_signal_wipe_completion(struct ocfs2_super *osb, |
| int slot) |
| { |
| spin_lock(&osb->osb_lock); |
| osb->osb_orphan_wipes[slot]--; |
| spin_unlock(&osb->osb_lock); |
| |
| wake_up(&osb->osb_wipe_event); |
| } |
| |
| static int ocfs2_wipe_inode(struct inode *inode, |
| struct buffer_head *di_bh) |
| { |
| int status, orphaned_slot; |
| struct inode *orphan_dir_inode = NULL; |
| struct buffer_head *orphan_dir_bh = NULL; |
| struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); |
| struct ocfs2_dinode *di; |
| |
| di = (struct ocfs2_dinode *) di_bh->b_data; |
| orphaned_slot = le16_to_cpu(di->i_orphaned_slot); |
| |
| status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot); |
| if (status) |
| return status; |
| |
| orphan_dir_inode = ocfs2_get_system_file_inode(osb, |
| ORPHAN_DIR_SYSTEM_INODE, |
| orphaned_slot); |
| if (!orphan_dir_inode) { |
| status = -EEXIST; |
| mlog_errno(status); |
| goto bail; |
| } |
| |
| /* Lock the orphan dir. The lock will be held for the entire |
| * delete_inode operation. We do this now to avoid races with |
| * recovery completion on other nodes. */ |
| mutex_lock(&orphan_dir_inode->i_mutex); |
| status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); |
| if (status < 0) { |
| mutex_unlock(&orphan_dir_inode->i_mutex); |
| |
| mlog_errno(status); |
| goto bail; |
| } |
| |
| /* we do this while holding the orphan dir lock because we |
| * don't want recovery being run from another node to try an |
| * inode delete underneath us -- this will result in two nodes |
| * truncating the same file! */ |
| status = ocfs2_truncate_for_delete(osb, inode, di_bh); |
| if (status < 0) { |
| mlog_errno(status); |
| goto bail_unlock_dir; |
| } |
| |
| status = ocfs2_remove_inode(inode, di_bh, orphan_dir_inode, |
| orphan_dir_bh); |
| if (status < 0) |
| mlog_errno(status); |
| |
| bail_unlock_dir: |
| ocfs2_inode_unlock(orphan_dir_inode, 1); |
| mutex_unlock(&orphan_dir_inode->i_mutex); |
| brelse(orphan_dir_bh); |
| bail: |
| iput(orphan_dir_inode); |
| ocfs2_signal_wipe_completion(osb, orphaned_slot); |
| |
| return status; |
| } |
| |
| /* There is a series of simple checks that should be done before a |
| * trylock is even considered. Encapsulate those in this function. */ |
| static int ocfs2_inode_is_valid_to_delete(struct inode *inode) |
| { |
| int ret = 0; |
| struct ocfs2_inode_info *oi = OCFS2_I(inode); |
| struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); |
| |
| /* We shouldn't be getting here for the root directory |
| * inode.. */ |
| if (inode == osb->root_inode) { |
| mlog(ML_ERROR, "Skipping delete of root inode.\n"); |
| goto bail; |
| } |
| |
| /* If we're coming from downconvert_thread we can't go into our own |
| * voting [hello, deadlock city!], so unforuntately we just |
| * have to skip deleting this guy. That's OK though because |
| * the node who's doing the actual deleting should handle it |
| * anyway. */ |
| if (current == osb->dc_task) { |
| mlog(0, "Skipping delete of %lu because we're currently " |
| "in downconvert\n", inode->i_ino); |
| goto bail; |
| } |
| |
| spin_lock(&oi->ip_lock); |
| /* OCFS2 *never* deletes system files. This should technically |
| * never get here as system file inodes should always have a |
| * positive link count. */ |
| if (oi->ip_flags & OCFS2_INODE_SYSTEM_FILE) { |
| mlog(ML_ERROR, "Skipping delete of system file %llu\n", |
| (unsigned long long)oi->ip_blkno); |
| goto bail_unlock; |
| } |
| |
| /* If we have allowd wipe of this inode for another node, it |
| * will be marked here so we can safely skip it. Recovery will |
| * cleanup any inodes we might inadvertantly skip here. */ |
| if (oi->ip_flags & OCFS2_INODE_SKIP_DELETE) { |
| mlog(0, "Skipping delete of %lu because another node " |
| "has done this for us.\n", inode->i_ino); |
| goto bail_unlock; |
| } |
| |
| ret = 1; |
| bail_unlock: |
| spin_unlock(&oi->ip_lock); |
| bail: |
| return ret; |
| } |
| |
| /* Query the cluster to determine whether we should wipe an inode from |
| * disk or not. |
| * |
| * Requires the inode to have the cluster lock. */ |
| static int ocfs2_query_inode_wipe(struct inode *inode, |
| struct buffer_head *di_bh, |
| int *wipe) |
| { |
| int status = 0; |
| struct ocfs2_inode_info *oi = OCFS2_I(inode); |
| struct ocfs2_dinode *di; |
| |
| *wipe = 0; |
| |
| /* While we were waiting for the cluster lock in |
| * ocfs2_delete_inode, another node might have asked to delete |
| * the inode. Recheck our flags to catch this. */ |
| if (!ocfs2_inode_is_valid_to_delete(inode)) { |
| mlog(0, "Skipping delete of %llu because flags changed\n", |
| (unsigned long long)oi->ip_blkno); |
| goto bail; |
| } |
| |
| /* Now that we have an up to date inode, we can double check |
| * the link count. */ |
| if (inode->i_nlink) { |
| mlog(0, "Skipping delete of %llu because nlink = %u\n", |
| (unsigned long long)oi->ip_blkno, inode->i_nlink); |
| goto bail; |
| } |
| |
| /* Do some basic inode verification... */ |
| di = (struct ocfs2_dinode *) di_bh->b_data; |
| if (!(di->i_flags & cpu_to_le32(OCFS2_ORPHANED_FL))) { |
| /* for lack of a better error? */ |
| status = -EEXIST; |
| mlog(ML_ERROR, |
| "Inode %llu (on-disk %llu) not orphaned! " |
| "Disk flags 0x%x, inode flags 0x%x\n", |
| (unsigned long long)oi->ip_blkno, |
| (unsigned long long)le64_to_cpu(di->i_blkno), |
| le32_to_cpu(di->i_flags), oi->ip_flags); |
| goto bail; |
| } |
| |
| /* has someone already deleted us?! baaad... */ |
| if (di->i_dtime) { |
| status = -EEXIST; |
| mlog_errno(status); |
| goto bail; |
| } |
| |
| /* |
| * This is how ocfs2 determines whether an inode is still live |
| * within the cluster. Every node takes a shared read lock on |
| * the inode open lock in ocfs2_read_locked_inode(). When we |
| * get to ->delete_inode(), each node tries to convert it's |
| * lock to an exclusive. Trylocks are serialized by the inode |
| * meta data lock. If the upconvert suceeds, we know the inode |
| * is no longer live and can be deleted. |
| * |
| * Though we call this with the meta data lock held, the |
| * trylock keeps us from ABBA deadlock. |
| */ |
| status = ocfs2_try_open_lock(inode, 1); |
| if (status == -EAGAIN) { |
| status = 0; |
| mlog(0, "Skipping delete of %llu because it is in use on " |
| "other nodes\n", (unsigned long long)oi->ip_blkno); |
| goto bail; |
| } |
| if (status < 0) { |
| mlog_errno(status); |
| goto bail; |
| } |
| |
| *wipe = 1; |
| mlog(0, "Inode %llu is ok to wipe from orphan dir %u\n", |
| (unsigned long long)oi->ip_blkno, |
| le16_to_cpu(di->i_orphaned_slot)); |
| |
| bail: |
| return status; |
| } |
| |
| /* Support function for ocfs2_delete_inode. Will help us keep the |
| * inode data in a consistent state for clear_inode. Always truncates |
| * pages, optionally sync's them first. */ |
| static void ocfs2_cleanup_delete_inode(struct inode *inode, |
| int sync_data) |
| { |
| mlog(0, "Cleanup inode %llu, sync = %d\n", |
| (unsigned long long)OCFS2_I(inode)->ip_blkno, sync_data); |
| if (sync_data) |
| write_inode_now(inode, 1); |
| truncate_inode_pages(&inode->i_data, 0); |
| } |
| |
| void ocfs2_delete_inode(struct inode *inode) |
| { |
| int wipe, status; |
| sigset_t blocked, oldset; |
| struct buffer_head *di_bh = NULL; |
| |
| mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino); |
| |
| if (is_bad_inode(inode)) { |
| mlog(0, "Skipping delete of bad inode\n"); |
| goto bail; |
| } |
| |
| if (!ocfs2_inode_is_valid_to_delete(inode)) { |
| /* It's probably not necessary to truncate_inode_pages |
| * here but we do it for safety anyway (it will most |
| * likely be a no-op anyway) */ |
| ocfs2_cleanup_delete_inode(inode, 0); |
| goto bail; |
| } |
| |
| /* We want to block signals in delete_inode as the lock and |
| * messaging paths may return us -ERESTARTSYS. Which would |
| * cause us to exit early, resulting in inodes being orphaned |
| * forever. */ |
| sigfillset(&blocked); |
| status = sigprocmask(SIG_BLOCK, &blocked, &oldset); |
| if (status < 0) { |
| mlog_errno(status); |
| ocfs2_cleanup_delete_inode(inode, 1); |
| goto bail; |
| } |
| |
| /* Lock down the inode. This gives us an up to date view of |
| * it's metadata (for verification), and allows us to |
| * serialize delete_inode on multiple nodes. |
| * |
| * Even though we might be doing a truncate, we don't take the |
| * allocation lock here as it won't be needed - nobody will |
| * have the file open. |
| */ |
| status = ocfs2_inode_lock(inode, &di_bh, 1); |
| if (status < 0) { |
| if (status != -ENOENT) |
| mlog_errno(status); |
| ocfs2_cleanup_delete_inode(inode, 0); |
| goto bail_unblock; |
| } |
| |
| /* Query the cluster. This will be the final decision made |
| * before we go ahead and wipe the inode. */ |
| status = ocfs2_query_inode_wipe(inode, di_bh, &wipe); |
| if (!wipe || status < 0) { |
| /* Error and remote inode busy both mean we won't be |
| * removing the inode, so they take almost the same |
| * path. */ |
| if (status < 0) |
| mlog_errno(status); |
| |
| /* Someone in the cluster has disallowed a wipe of |
| * this inode, or it was never completely |
| * orphaned. Write out the pages and exit now. */ |
| ocfs2_cleanup_delete_inode(inode, 1); |
| goto bail_unlock_inode; |
| } |
| |
| ocfs2_cleanup_delete_inode(inode, 0); |
| |
| status = ocfs2_wipe_inode(inode, di_bh); |
| if (status < 0) { |
| if (status != -EDEADLK) |
| mlog_errno(status); |
| goto bail_unlock_inode; |
| } |
| |
| /* |
| * Mark the inode as successfully deleted. |
| * |
| * This is important for ocfs2_clear_inode() as it will check |
| * this flag and skip any checkpointing work |
| * |
| * ocfs2_stuff_meta_lvb() also uses this flag to invalidate |
| * the LVB for other nodes. |
| */ |
| OCFS2_I(inode)->ip_flags |= OCFS2_INODE_DELETED; |
| |
| bail_unlock_inode: |
| ocfs2_inode_unlock(inode, 1); |
| brelse(di_bh); |
| bail_unblock: |
| status = sigprocmask(SIG_SETMASK, &oldset, NULL); |
| if (status < 0) |
| mlog_errno(status); |
| bail: |
| clear_inode(inode); |
| mlog_exit_void(); |
| } |
| |
| void ocfs2_clear_inode(struct inode *inode) |
| { |
| int status; |
| struct ocfs2_inode_info *oi = OCFS2_I(inode); |
| |
| mlog_entry_void(); |
| |
| if (!inode) |
| goto bail; |
| |
| mlog(0, "Clearing inode: %llu, nlink = %u\n", |
| (unsigned long long)OCFS2_I(inode)->ip_blkno, inode->i_nlink); |
| |
| mlog_bug_on_msg(OCFS2_SB(inode->i_sb) == NULL, |
| "Inode=%lu\n", inode->i_ino); |
| |
| /* To preven remote deletes we hold open lock before, now it |
| * is time to unlock PR and EX open locks. */ |
| ocfs2_open_unlock(inode); |
| |
| /* Do these before all the other work so that we don't bounce |
| * the downconvert thread while waiting to destroy the locks. */ |
| ocfs2_mark_lockres_freeing(&oi->ip_rw_lockres); |
| ocfs2_mark_lockres_freeing(&oi->ip_inode_lockres); |
| ocfs2_mark_lockres_freeing(&oi->ip_open_lockres); |
| |
| /* We very well may get a clear_inode before all an inodes |
| * metadata has hit disk. Of course, we can't drop any cluster |
| * locks until the journal has finished with it. The only |
| * exception here are successfully wiped inodes - their |
| * metadata can now be considered to be part of the system |
| * inodes from which it came. */ |
| if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED)) |
| ocfs2_checkpoint_inode(inode); |
| |
| mlog_bug_on_msg(!list_empty(&oi->ip_io_markers), |
| "Clear inode of %llu, inode has io markers\n", |
| (unsigned long long)oi->ip_blkno); |
| |
| ocfs2_extent_map_trunc(inode, 0); |
| |
| status = ocfs2_drop_inode_locks(inode); |
| if (status < 0) |
| mlog_errno(status); |
| |
| ocfs2_lock_res_free(&oi->ip_rw_lockres); |
| ocfs2_lock_res_free(&oi->ip_inode_lockres); |
| ocfs2_lock_res_free(&oi->ip_open_lockres); |
| |
| ocfs2_metadata_cache_purge(inode); |
| |
| mlog_bug_on_msg(oi->ip_metadata_cache.ci_num_cached, |
| "Clear inode of %llu, inode has %u cache items\n", |
| (unsigned long long)oi->ip_blkno, oi->ip_metadata_cache.ci_num_cached); |
| |
| mlog_bug_on_msg(!(oi->ip_flags & OCFS2_INODE_CACHE_INLINE), |
| "Clear inode of %llu, inode has a bad flag\n", |
| (unsigned long long)oi->ip_blkno); |
| |
| mlog_bug_on_msg(spin_is_locked(&oi->ip_lock), |
| "Clear inode of %llu, inode is locked\n", |
| (unsigned long long)oi->ip_blkno); |
| |
| mlog_bug_on_msg(!mutex_trylock(&oi->ip_io_mutex), |
| "Clear inode of %llu, io_mutex is locked\n", |
| (unsigned long long)oi->ip_blkno); |
| mutex_unlock(&oi->ip_io_mutex); |
| |
| /* |
| * down_trylock() returns 0, down_write_trylock() returns 1 |
| * kernel 1, world 0 |
| */ |
| mlog_bug_on_msg(!down_write_trylock(&oi->ip_alloc_sem), |
| "Clear inode of %llu, alloc_sem is locked\n", |
| (unsigned long long)oi->ip_blkno); |
| up_write(&oi->ip_alloc_sem); |
| |
| mlog_bug_on_msg(oi->ip_open_count, |
| "Clear inode of %llu has open count %d\n", |
| (unsigned long long)oi->ip_blkno, oi->ip_open_count); |
| |
| /* Clear all other flags. */ |
| oi->ip_flags = OCFS2_INODE_CACHE_INLINE; |
| oi->ip_created_trans = 0; |
| oi->ip_last_trans = 0; |
| oi->ip_dir_start_lookup = 0; |
| oi->ip_blkno = 0ULL; |
| |
| bail: |
| mlog_exit_void(); |
| } |
| |
| /* Called under inode_lock, with no more references on the |
| * struct inode, so it's safe here to check the flags field |
| * and to manipulate i_nlink without any other locks. */ |
| void ocfs2_drop_inode(struct inode *inode) |
| { |
| struct ocfs2_inode_info *oi = OCFS2_I(inode); |
| |
| mlog_entry_void(); |
| |
| mlog(0, "Drop inode %llu, nlink = %u, ip_flags = 0x%x\n", |
| (unsigned long long)oi->ip_blkno, inode->i_nlink, oi->ip_flags); |
| |
| if (oi->ip_flags & OCFS2_INODE_MAYBE_ORPHANED) |
| generic_delete_inode(inode); |
| else |
| generic_drop_inode(inode); |
| |
| mlog_exit_void(); |
| } |
| |
| /* |
| * TODO: this should probably be merged into ocfs2_get_block |
| * |
| * However, you now need to pay attention to the cont_prepare_write() |
| * stuff in ocfs2_get_block (that is, ocfs2_get_block pretty much |
| * expects never to extend). |
| */ |
| struct buffer_head *ocfs2_bread(struct inode *inode, |
| int block, int *err, int reada) |
| { |
| struct buffer_head *bh = NULL; |
| int tmperr; |
| u64 p_blkno; |
| int readflags = OCFS2_BH_CACHED; |
| |
| if (reada) |
| readflags |= OCFS2_BH_READAHEAD; |
| |
| if (((u64)block << inode->i_sb->s_blocksize_bits) >= |
| i_size_read(inode)) { |
| BUG_ON(!reada); |
| return NULL; |
| } |
| |
| down_read(&OCFS2_I(inode)->ip_alloc_sem); |
| tmperr = ocfs2_extent_map_get_blocks(inode, block, &p_blkno, NULL, |
| NULL); |
| up_read(&OCFS2_I(inode)->ip_alloc_sem); |
| if (tmperr < 0) { |
| mlog_errno(tmperr); |
| goto fail; |
| } |
| |
| tmperr = ocfs2_read_block(OCFS2_SB(inode->i_sb), p_blkno, &bh, |
| readflags, inode); |
| if (tmperr < 0) |
| goto fail; |
| |
| tmperr = 0; |
| |
| *err = 0; |
| return bh; |
| |
| fail: |
| if (bh) { |
| brelse(bh); |
| bh = NULL; |
| } |
| *err = -EIO; |
| return NULL; |
| } |
| |
| /* |
| * This is called from our getattr. |
| */ |
| int ocfs2_inode_revalidate(struct dentry *dentry) |
| { |
| struct inode *inode = dentry->d_inode; |
| int status = 0; |
| |
| mlog_entry("(inode = 0x%p, ino = %llu)\n", inode, |
| inode ? (unsigned long long)OCFS2_I(inode)->ip_blkno : 0ULL); |
| |
| if (!inode) { |
| mlog(0, "eep, no inode!\n"); |
| status = -ENOENT; |
| goto bail; |
| } |
| |
| spin_lock(&OCFS2_I(inode)->ip_lock); |
| if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) { |
| spin_unlock(&OCFS2_I(inode)->ip_lock); |
| mlog(0, "inode deleted!\n"); |
| status = -ENOENT; |
| goto bail; |
| } |
| spin_unlock(&OCFS2_I(inode)->ip_lock); |
| |
| /* Let ocfs2_inode_lock do the work of updating our struct |
| * inode for us. */ |
| status = ocfs2_inode_lock(inode, NULL, 0); |
| if (status < 0) { |
| if (status != -ENOENT) |
| mlog_errno(status); |
| goto bail; |
| } |
| ocfs2_inode_unlock(inode, 0); |
| bail: |
| mlog_exit(status); |
| |
| return status; |
| } |
| |
| /* |
| * Updates a disk inode from a |
| * struct inode. |
| * Only takes ip_lock. |
| */ |
| int ocfs2_mark_inode_dirty(handle_t *handle, |
| struct inode *inode, |
| struct buffer_head *bh) |
| { |
| int status; |
| struct ocfs2_dinode *fe = (struct ocfs2_dinode *) bh->b_data; |
| |
| mlog_entry("(inode %llu)\n", |
| (unsigned long long)OCFS2_I(inode)->ip_blkno); |
| |
| status = ocfs2_journal_access(handle, inode, bh, |
| OCFS2_JOURNAL_ACCESS_WRITE); |
| if (status < 0) { |
| mlog_errno(status); |
| goto leave; |
| } |
| |
| spin_lock(&OCFS2_I(inode)->ip_lock); |
| fe->i_clusters = cpu_to_le32(OCFS2_I(inode)->ip_clusters); |
| ocfs2_get_inode_flags(OCFS2_I(inode)); |
| fe->i_attr = cpu_to_le32(OCFS2_I(inode)->ip_attr); |
| fe->i_dyn_features = cpu_to_le16(OCFS2_I(inode)->ip_dyn_features); |
| spin_unlock(&OCFS2_I(inode)->ip_lock); |
| |
| fe->i_size = cpu_to_le64(i_size_read(inode)); |
| fe->i_links_count = cpu_to_le16(inode->i_nlink); |
| 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); |
| fe->i_atime = cpu_to_le64(inode->i_atime.tv_sec); |
| fe->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); |
| fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); |
| fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); |
| fe->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); |
| fe->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); |
| |
| status = ocfs2_journal_dirty(handle, bh); |
| if (status < 0) |
| mlog_errno(status); |
| |
| status = 0; |
| leave: |
| |
| mlog_exit(status); |
| return status; |
| } |
| |
| /* |
| * |
| * Updates a struct inode from a disk inode. |
| * does no i/o, only takes ip_lock. |
| */ |
| void ocfs2_refresh_inode(struct inode *inode, |
| struct ocfs2_dinode *fe) |
| { |
| spin_lock(&OCFS2_I(inode)->ip_lock); |
| |
| OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); |
| OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr); |
| OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features); |
| ocfs2_set_inode_flags(inode); |
| i_size_write(inode, le64_to_cpu(fe->i_size)); |
| inode->i_nlink = le16_to_cpu(fe->i_links_count); |
| inode->i_uid = le32_to_cpu(fe->i_uid); |
| inode->i_gid = le32_to_cpu(fe->i_gid); |
| inode->i_mode = le16_to_cpu(fe->i_mode); |
| if (S_ISLNK(inode->i_mode) && le32_to_cpu(fe->i_clusters) == 0) |
| inode->i_blocks = 0; |
| else |
| inode->i_blocks = ocfs2_inode_sector_count(inode); |
| inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime); |
| inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec); |
| inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime); |
| inode->i_mtime.tv_nsec = le32_to_cpu(fe->i_mtime_nsec); |
| inode->i_ctime.tv_sec = le64_to_cpu(fe->i_ctime); |
| inode->i_ctime.tv_nsec = le32_to_cpu(fe->i_ctime_nsec); |
| |
| spin_unlock(&OCFS2_I(inode)->ip_lock); |
| } |