super.c (98c7089c769048f941bd5c5285287f8fc301f8b1) super.c (aea52e19dd2085617dd7d247afb76a90cf2ea40c)
1/*
2 * Copyright (C) 2007 Oracle. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,

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142 sb->s_id, function, line, errstr);
143 save_error_info(fs_info);
144
145 btrfs_handle_error(fs_info);
146}
147
148static void btrfs_put_super(struct super_block *sb)
149{
1/*
2 * Copyright (C) 2007 Oracle. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,

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142 sb->s_id, function, line, errstr);
143 save_error_info(fs_info);
144
145 btrfs_handle_error(fs_info);
146}
147
148static void btrfs_put_super(struct super_block *sb)
149{
150 struct btrfs_root *root = btrfs_sb(sb);
151 int ret;
152
153 ret = close_ctree(root);
154 free_fs_info(root->fs_info);
155 sb->s_fs_info = NULL;
156
157 (void)ret; /* FIXME: need to fix VFS to return error? */
150 (void)close_ctree(btrfs_sb(sb));
151 /* FIXME: need to fix VFS to return error? */
152 /* AV: return it _where_? ->put_super() can be triggered by any number
153 * of async events, up to and including delivery of SIGKILL to the
154 * last process that kept it busy. Or segfault in the aforementioned
155 * process... Whom would you report that to?
156 */
158}
159
160enum {
161 Opt_degraded, Opt_subvol, Opt_subvolid, Opt_device, Opt_nodatasum,
162 Opt_nodatacow, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, Opt_ssd,
163 Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl, Opt_compress,
164 Opt_compress_type, Opt_compress_force, Opt_compress_force_type,
165 Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_discard,

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1218 buf->f_fsid.val[1] = be32_to_cpu(fsid[1]) ^ be32_to_cpu(fsid[3]);
1219 /* Mask in the root object ID too, to disambiguate subvols */
1220 buf->f_fsid.val[0] ^= BTRFS_I(dentry->d_inode)->root->objectid >> 32;
1221 buf->f_fsid.val[1] ^= BTRFS_I(dentry->d_inode)->root->objectid;
1222
1223 return 0;
1224}
1225
157}
158
159enum {
160 Opt_degraded, Opt_subvol, Opt_subvolid, Opt_device, Opt_nodatasum,
161 Opt_nodatacow, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, Opt_ssd,
162 Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl, Opt_compress,
163 Opt_compress_type, Opt_compress_force, Opt_compress_force_type,
164 Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_discard,

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1217 buf->f_fsid.val[1] = be32_to_cpu(fsid[1]) ^ be32_to_cpu(fsid[3]);
1218 /* Mask in the root object ID too, to disambiguate subvols */
1219 buf->f_fsid.val[0] ^= BTRFS_I(dentry->d_inode)->root->objectid >> 32;
1220 buf->f_fsid.val[1] ^= BTRFS_I(dentry->d_inode)->root->objectid;
1221
1222 return 0;
1223}
1224
1225static void btrfs_kill_super(struct super_block *sb)
1226{
1227 struct btrfs_fs_info *fs_info = NULL;
1228 if (sb->s_root)
1229 fs_info = btrfs_sb(sb)->fs_info;
1230 kill_anon_super(sb);
1231 if (fs_info)
1232 free_fs_info(fs_info);
1233}
1234
1226static struct file_system_type btrfs_fs_type = {
1227 .owner = THIS_MODULE,
1228 .name = "btrfs",
1229 .mount = btrfs_mount,
1235static struct file_system_type btrfs_fs_type = {
1236 .owner = THIS_MODULE,
1237 .name = "btrfs",
1238 .mount = btrfs_mount,
1230 .kill_sb = kill_anon_super,
1239 .kill_sb = btrfs_kill_super,
1231 .fs_flags = FS_REQUIRES_DEV,
1232};
1233
1234/*
1235 * used by btrfsctl to scan devices when no FS is mounted
1236 */
1237static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
1238 unsigned long arg)

--- 165 unchanged lines hidden --- 		1240 .fs_flags = FS_REQUIRES_DEV,
1241};
1242
1243/*
1244 * used by btrfsctl to scan devices when no FS is mounted
1245 */
1246static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
1247 unsigned long arg)

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