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776 lines
18 KiB
776 lines
18 KiB
/* AFS superblock handling |
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* |
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* Copyright (c) 2002, 2007, 2018 Red Hat, Inc. All rights reserved. |
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* |
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* This software may be freely redistributed under the terms of the |
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* GNU General Public License. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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* Authors: David Howells <[email protected]> |
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* David Woodhouse <[email protected]> |
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* |
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*/ |
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|
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/mount.h> |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/fs.h> |
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#include <linux/pagemap.h> |
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#include <linux/fs_parser.h> |
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#include <linux/statfs.h> |
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#include <linux/sched.h> |
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#include <linux/nsproxy.h> |
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#include <linux/magic.h> |
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#include <net/net_namespace.h> |
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#include "internal.h" |
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|
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static void afs_i_init_once(void *foo); |
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static void afs_kill_super(struct super_block *sb); |
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static struct inode *afs_alloc_inode(struct super_block *sb); |
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static void afs_destroy_inode(struct inode *inode); |
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static void afs_free_inode(struct inode *inode); |
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static int afs_statfs(struct dentry *dentry, struct kstatfs *buf); |
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static int afs_show_devname(struct seq_file *m, struct dentry *root); |
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static int afs_show_options(struct seq_file *m, struct dentry *root); |
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static int afs_init_fs_context(struct fs_context *fc); |
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static const struct fs_parameter_spec afs_fs_parameters[]; |
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struct file_system_type afs_fs_type = { |
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.owner = THIS_MODULE, |
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.name = "afs", |
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.init_fs_context = afs_init_fs_context, |
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.parameters = afs_fs_parameters, |
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.kill_sb = afs_kill_super, |
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.fs_flags = FS_RENAME_DOES_D_MOVE, |
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}; |
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MODULE_ALIAS_FS("afs"); |
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int afs_net_id; |
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static const struct super_operations afs_super_ops = { |
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.statfs = afs_statfs, |
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.alloc_inode = afs_alloc_inode, |
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.drop_inode = afs_drop_inode, |
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.destroy_inode = afs_destroy_inode, |
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.free_inode = afs_free_inode, |
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.evict_inode = afs_evict_inode, |
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.show_devname = afs_show_devname, |
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.show_options = afs_show_options, |
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}; |
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static struct kmem_cache *afs_inode_cachep; |
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static atomic_t afs_count_active_inodes; |
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enum afs_param { |
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Opt_autocell, |
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Opt_dyn, |
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Opt_flock, |
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Opt_source, |
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}; |
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static const struct constant_table afs_param_flock[] = { |
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{"local", afs_flock_mode_local }, |
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{"openafs", afs_flock_mode_openafs }, |
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{"strict", afs_flock_mode_strict }, |
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{"write", afs_flock_mode_write }, |
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{} |
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}; |
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static const struct fs_parameter_spec afs_fs_parameters[] = { |
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fsparam_flag ("autocell", Opt_autocell), |
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fsparam_flag ("dyn", Opt_dyn), |
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fsparam_enum ("flock", Opt_flock, afs_param_flock), |
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fsparam_string("source", Opt_source), |
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{} |
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}; |
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/* |
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* initialise the filesystem |
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*/ |
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int __init afs_fs_init(void) |
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{ |
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int ret; |
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_enter(""); |
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/* create ourselves an inode cache */ |
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atomic_set(&afs_count_active_inodes, 0); |
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ret = -ENOMEM; |
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afs_inode_cachep = kmem_cache_create("afs_inode_cache", |
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sizeof(struct afs_vnode), |
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0, |
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SLAB_HWCACHE_ALIGN|SLAB_ACCOUNT, |
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afs_i_init_once); |
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if (!afs_inode_cachep) { |
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printk(KERN_NOTICE "kAFS: Failed to allocate inode cache\n"); |
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return ret; |
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} |
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/* now export our filesystem to lesser mortals */ |
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ret = register_filesystem(&afs_fs_type); |
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if (ret < 0) { |
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kmem_cache_destroy(afs_inode_cachep); |
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_leave(" = %d", ret); |
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return ret; |
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} |
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_leave(" = 0"); |
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return 0; |
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} |
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/* |
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* clean up the filesystem |
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*/ |
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void afs_fs_exit(void) |
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{ |
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_enter(""); |
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afs_mntpt_kill_timer(); |
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unregister_filesystem(&afs_fs_type); |
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if (atomic_read(&afs_count_active_inodes) != 0) { |
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printk("kAFS: %d active inode objects still present\n", |
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atomic_read(&afs_count_active_inodes)); |
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BUG(); |
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} |
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/* |
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* Make sure all delayed rcu free inodes are flushed before we |
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* destroy cache. |
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*/ |
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rcu_barrier(); |
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kmem_cache_destroy(afs_inode_cachep); |
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_leave(""); |
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} |
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/* |
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* Display the mount device name in /proc/mounts. |
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*/ |
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static int afs_show_devname(struct seq_file *m, struct dentry *root) |
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{ |
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struct afs_super_info *as = AFS_FS_S(root->d_sb); |
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struct afs_volume *volume = as->volume; |
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struct afs_cell *cell = as->cell; |
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const char *suf = ""; |
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char pref = '%'; |
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if (as->dyn_root) { |
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seq_puts(m, "none"); |
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return 0; |
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} |
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switch (volume->type) { |
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case AFSVL_RWVOL: |
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break; |
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case AFSVL_ROVOL: |
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pref = '#'; |
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if (volume->type_force) |
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suf = ".readonly"; |
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break; |
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case AFSVL_BACKVOL: |
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pref = '#'; |
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suf = ".backup"; |
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break; |
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} |
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seq_printf(m, "%c%s:%s%s", pref, cell->name, volume->name, suf); |
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return 0; |
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} |
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/* |
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* Display the mount options in /proc/mounts. |
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*/ |
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static int afs_show_options(struct seq_file *m, struct dentry *root) |
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{ |
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struct afs_super_info *as = AFS_FS_S(root->d_sb); |
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const char *p = NULL; |
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if (as->dyn_root) |
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seq_puts(m, ",dyn"); |
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if (test_bit(AFS_VNODE_AUTOCELL, &AFS_FS_I(d_inode(root))->flags)) |
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seq_puts(m, ",autocell"); |
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switch (as->flock_mode) { |
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case afs_flock_mode_unset: break; |
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case afs_flock_mode_local: p = "local"; break; |
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case afs_flock_mode_openafs: p = "openafs"; break; |
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case afs_flock_mode_strict: p = "strict"; break; |
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case afs_flock_mode_write: p = "write"; break; |
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} |
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if (p) |
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seq_printf(m, ",flock=%s", p); |
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return 0; |
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} |
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/* |
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* Parse the source name to get cell name, volume name, volume type and R/W |
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* selector. |
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* |
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* This can be one of the following: |
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* "%[cell:]volume[.]" R/W volume |
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* "#[cell:]volume[.]" R/O or R/W volume (R/O parent), |
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* or R/W (R/W parent) volume |
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* "%[cell:]volume.readonly" R/O volume |
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* "#[cell:]volume.readonly" R/O volume |
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* "%[cell:]volume.backup" Backup volume |
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* "#[cell:]volume.backup" Backup volume |
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*/ |
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static int afs_parse_source(struct fs_context *fc, struct fs_parameter *param) |
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{ |
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struct afs_fs_context *ctx = fc->fs_private; |
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struct afs_cell *cell; |
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const char *cellname, *suffix, *name = param->string; |
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int cellnamesz; |
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_enter(",%s", name); |
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if (fc->source) |
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return invalf(fc, "kAFS: Multiple sources not supported"); |
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if (!name) { |
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printk(KERN_ERR "kAFS: no volume name specified\n"); |
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return -EINVAL; |
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} |
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if ((name[0] != '%' && name[0] != '#') || !name[1]) { |
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/* To use dynroot, we don't want to have to provide a source */ |
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if (strcmp(name, "none") == 0) { |
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ctx->no_cell = true; |
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return 0; |
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} |
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printk(KERN_ERR "kAFS: unparsable volume name\n"); |
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return -EINVAL; |
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} |
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/* determine the type of volume we're looking for */ |
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if (name[0] == '%') { |
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ctx->type = AFSVL_RWVOL; |
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ctx->force = true; |
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} |
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name++; |
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/* split the cell name out if there is one */ |
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ctx->volname = strchr(name, ':'); |
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if (ctx->volname) { |
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cellname = name; |
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cellnamesz = ctx->volname - name; |
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ctx->volname++; |
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} else { |
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ctx->volname = name; |
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cellname = NULL; |
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cellnamesz = 0; |
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} |
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/* the volume type is further affected by a possible suffix */ |
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suffix = strrchr(ctx->volname, '.'); |
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if (suffix) { |
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if (strcmp(suffix, ".readonly") == 0) { |
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ctx->type = AFSVL_ROVOL; |
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ctx->force = true; |
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} else if (strcmp(suffix, ".backup") == 0) { |
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ctx->type = AFSVL_BACKVOL; |
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ctx->force = true; |
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} else if (suffix[1] == 0) { |
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} else { |
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suffix = NULL; |
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} |
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} |
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ctx->volnamesz = suffix ? |
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suffix - ctx->volname : strlen(ctx->volname); |
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_debug("cell %*.*s [%p]", |
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cellnamesz, cellnamesz, cellname ?: "", ctx->cell); |
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/* lookup the cell record */ |
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if (cellname) { |
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cell = afs_lookup_cell(ctx->net, cellname, cellnamesz, |
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NULL, false); |
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if (IS_ERR(cell)) { |
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pr_err("kAFS: unable to lookup cell '%*.*s'\n", |
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cellnamesz, cellnamesz, cellname ?: ""); |
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return PTR_ERR(cell); |
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} |
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afs_unuse_cell(ctx->net, ctx->cell, afs_cell_trace_unuse_parse); |
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afs_see_cell(cell, afs_cell_trace_see_source); |
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ctx->cell = cell; |
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} |
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_debug("CELL:%s [%p] VOLUME:%*.*s SUFFIX:%s TYPE:%d%s", |
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ctx->cell->name, ctx->cell, |
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ctx->volnamesz, ctx->volnamesz, ctx->volname, |
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suffix ?: "-", ctx->type, ctx->force ? " FORCE" : ""); |
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fc->source = param->string; |
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param->string = NULL; |
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return 0; |
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} |
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/* |
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* Parse a single mount parameter. |
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*/ |
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static int afs_parse_param(struct fs_context *fc, struct fs_parameter *param) |
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{ |
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struct fs_parse_result result; |
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struct afs_fs_context *ctx = fc->fs_private; |
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int opt; |
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opt = fs_parse(fc, afs_fs_parameters, param, &result); |
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if (opt < 0) |
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return opt; |
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switch (opt) { |
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case Opt_source: |
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return afs_parse_source(fc, param); |
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case Opt_autocell: |
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ctx->autocell = true; |
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break; |
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case Opt_dyn: |
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ctx->dyn_root = true; |
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break; |
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case Opt_flock: |
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ctx->flock_mode = result.uint_32; |
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break; |
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default: |
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return -EINVAL; |
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} |
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_leave(" = 0"); |
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return 0; |
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} |
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/* |
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* Validate the options, get the cell key and look up the volume. |
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*/ |
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static int afs_validate_fc(struct fs_context *fc) |
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{ |
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struct afs_fs_context *ctx = fc->fs_private; |
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struct afs_volume *volume; |
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struct afs_cell *cell; |
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struct key *key; |
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int ret; |
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if (!ctx->dyn_root) { |
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if (ctx->no_cell) { |
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pr_warn("kAFS: Can only specify source 'none' with -o dyn\n"); |
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return -EINVAL; |
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} |
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if (!ctx->cell) { |
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pr_warn("kAFS: No cell specified\n"); |
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return -EDESTADDRREQ; |
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} |
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reget_key: |
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/* We try to do the mount securely. */ |
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key = afs_request_key(ctx->cell); |
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if (IS_ERR(key)) |
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return PTR_ERR(key); |
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ctx->key = key; |
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|
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if (ctx->volume) { |
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afs_put_volume(ctx->net, ctx->volume, |
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afs_volume_trace_put_validate_fc); |
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ctx->volume = NULL; |
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} |
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if (test_bit(AFS_CELL_FL_CHECK_ALIAS, &ctx->cell->flags)) { |
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ret = afs_cell_detect_alias(ctx->cell, key); |
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if (ret < 0) |
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return ret; |
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if (ret == 1) { |
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_debug("switch to alias"); |
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key_put(ctx->key); |
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ctx->key = NULL; |
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cell = afs_use_cell(ctx->cell->alias_of, |
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afs_cell_trace_use_fc_alias); |
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afs_unuse_cell(ctx->net, ctx->cell, afs_cell_trace_unuse_fc); |
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ctx->cell = cell; |
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goto reget_key; |
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} |
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} |
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volume = afs_create_volume(ctx); |
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if (IS_ERR(volume)) |
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return PTR_ERR(volume); |
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|
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ctx->volume = volume; |
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} |
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return 0; |
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} |
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|
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/* |
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* check a superblock to see if it's the one we're looking for |
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*/ |
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static int afs_test_super(struct super_block *sb, struct fs_context *fc) |
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{ |
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struct afs_fs_context *ctx = fc->fs_private; |
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struct afs_super_info *as = AFS_FS_S(sb); |
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|
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return (as->net_ns == fc->net_ns && |
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as->volume && |
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as->volume->vid == ctx->volume->vid && |
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as->cell == ctx->cell && |
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!as->dyn_root); |
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} |
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|
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static int afs_dynroot_test_super(struct super_block *sb, struct fs_context *fc) |
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{ |
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struct afs_super_info *as = AFS_FS_S(sb); |
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return (as->net_ns == fc->net_ns && |
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as->dyn_root); |
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} |
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static int afs_set_super(struct super_block *sb, struct fs_context *fc) |
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{ |
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return set_anon_super(sb, NULL); |
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} |
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|
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/* |
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* fill in the superblock |
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*/ |
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static int afs_fill_super(struct super_block *sb, struct afs_fs_context *ctx) |
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{ |
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struct afs_super_info *as = AFS_FS_S(sb); |
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struct inode *inode = NULL; |
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int ret; |
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_enter(""); |
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|
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/* fill in the superblock */ |
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sb->s_blocksize = PAGE_SIZE; |
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sb->s_blocksize_bits = PAGE_SHIFT; |
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sb->s_maxbytes = MAX_LFS_FILESIZE; |
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sb->s_magic = AFS_FS_MAGIC; |
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sb->s_op = &afs_super_ops; |
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if (!as->dyn_root) |
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sb->s_xattr = afs_xattr_handlers; |
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ret = super_setup_bdi(sb); |
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if (ret) |
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return ret; |
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|
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/* allocate the root inode and dentry */ |
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if (as->dyn_root) { |
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inode = afs_iget_pseudo_dir(sb, true); |
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} else { |
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sprintf(sb->s_id, "%llu", as->volume->vid); |
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afs_activate_volume(as->volume); |
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inode = afs_root_iget(sb, ctx->key); |
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} |
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|
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if (IS_ERR(inode)) |
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return PTR_ERR(inode); |
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|
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if (ctx->autocell || as->dyn_root) |
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set_bit(AFS_VNODE_AUTOCELL, &AFS_FS_I(inode)->flags); |
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|
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ret = -ENOMEM; |
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sb->s_root = d_make_root(inode); |
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if (!sb->s_root) |
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goto error; |
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|
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if (as->dyn_root) { |
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sb->s_d_op = &afs_dynroot_dentry_operations; |
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ret = afs_dynroot_populate(sb); |
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if (ret < 0) |
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goto error; |
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} else { |
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sb->s_d_op = &afs_fs_dentry_operations; |
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rcu_assign_pointer(as->volume->sb, sb); |
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} |
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|
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_leave(" = 0"); |
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return 0; |
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|
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error: |
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_leave(" = %d", ret); |
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return ret; |
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} |
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|
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static struct afs_super_info *afs_alloc_sbi(struct fs_context *fc) |
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{ |
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struct afs_fs_context *ctx = fc->fs_private; |
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struct afs_super_info *as; |
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|
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as = kzalloc(sizeof(struct afs_super_info), GFP_KERNEL); |
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if (as) { |
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as->net_ns = get_net(fc->net_ns); |
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as->flock_mode = ctx->flock_mode; |
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if (ctx->dyn_root) { |
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as->dyn_root = true; |
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} else { |
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as->cell = afs_use_cell(ctx->cell, afs_cell_trace_use_sbi); |
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as->volume = afs_get_volume(ctx->volume, |
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afs_volume_trace_get_alloc_sbi); |
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} |
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} |
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return as; |
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} |
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|
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static void afs_destroy_sbi(struct afs_super_info *as) |
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{ |
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if (as) { |
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struct afs_net *net = afs_net(as->net_ns); |
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afs_put_volume(net, as->volume, afs_volume_trace_put_destroy_sbi); |
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afs_unuse_cell(net, as->cell, afs_cell_trace_unuse_sbi); |
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put_net(as->net_ns); |
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kfree(as); |
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} |
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} |
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|
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static void afs_kill_super(struct super_block *sb) |
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{ |
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struct afs_super_info *as = AFS_FS_S(sb); |
|
|
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if (as->dyn_root) |
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afs_dynroot_depopulate(sb); |
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|
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/* Clear the callback interests (which will do ilookup5) before |
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* deactivating the superblock. |
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*/ |
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if (as->volume) |
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rcu_assign_pointer(as->volume->sb, NULL); |
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kill_anon_super(sb); |
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if (as->volume) |
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afs_deactivate_volume(as->volume); |
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afs_destroy_sbi(as); |
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} |
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|
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/* |
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* Get an AFS superblock and root directory. |
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*/ |
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static int afs_get_tree(struct fs_context *fc) |
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{ |
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struct afs_fs_context *ctx = fc->fs_private; |
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struct super_block *sb; |
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struct afs_super_info *as; |
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int ret; |
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|
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ret = afs_validate_fc(fc); |
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if (ret) |
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goto error; |
|
|
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_enter(""); |
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|
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/* allocate a superblock info record */ |
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ret = -ENOMEM; |
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as = afs_alloc_sbi(fc); |
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if (!as) |
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goto error; |
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fc->s_fs_info = as; |
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|
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/* allocate a deviceless superblock */ |
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sb = sget_fc(fc, |
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as->dyn_root ? afs_dynroot_test_super : afs_test_super, |
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afs_set_super); |
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if (IS_ERR(sb)) { |
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ret = PTR_ERR(sb); |
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goto error; |
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} |
|
|
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if (!sb->s_root) { |
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/* initial superblock/root creation */ |
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_debug("create"); |
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ret = afs_fill_super(sb, ctx); |
|
if (ret < 0) |
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goto error_sb; |
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sb->s_flags |= SB_ACTIVE; |
|
} else { |
|
_debug("reuse"); |
|
ASSERTCMP(sb->s_flags, &, SB_ACTIVE); |
|
} |
|
|
|
fc->root = dget(sb->s_root); |
|
trace_afs_get_tree(as->cell, as->volume); |
|
_leave(" = 0 [%p]", sb); |
|
return 0; |
|
|
|
error_sb: |
|
deactivate_locked_super(sb); |
|
error: |
|
_leave(" = %d", ret); |
|
return ret; |
|
} |
|
|
|
static void afs_free_fc(struct fs_context *fc) |
|
{ |
|
struct afs_fs_context *ctx = fc->fs_private; |
|
|
|
afs_destroy_sbi(fc->s_fs_info); |
|
afs_put_volume(ctx->net, ctx->volume, afs_volume_trace_put_free_fc); |
|
afs_unuse_cell(ctx->net, ctx->cell, afs_cell_trace_unuse_fc); |
|
key_put(ctx->key); |
|
kfree(ctx); |
|
} |
|
|
|
static const struct fs_context_operations afs_context_ops = { |
|
.free = afs_free_fc, |
|
.parse_param = afs_parse_param, |
|
.get_tree = afs_get_tree, |
|
}; |
|
|
|
/* |
|
* Set up the filesystem mount context. |
|
*/ |
|
static int afs_init_fs_context(struct fs_context *fc) |
|
{ |
|
struct afs_fs_context *ctx; |
|
struct afs_cell *cell; |
|
|
|
ctx = kzalloc(sizeof(struct afs_fs_context), GFP_KERNEL); |
|
if (!ctx) |
|
return -ENOMEM; |
|
|
|
ctx->type = AFSVL_ROVOL; |
|
ctx->net = afs_net(fc->net_ns); |
|
|
|
/* Default to the workstation cell. */ |
|
cell = afs_find_cell(ctx->net, NULL, 0, afs_cell_trace_use_fc); |
|
if (IS_ERR(cell)) |
|
cell = NULL; |
|
ctx->cell = cell; |
|
|
|
fc->fs_private = ctx; |
|
fc->ops = &afs_context_ops; |
|
return 0; |
|
} |
|
|
|
/* |
|
* Initialise an inode cache slab element prior to any use. Note that |
|
* afs_alloc_inode() *must* reset anything that could incorrectly leak from one |
|
* inode to another. |
|
*/ |
|
static void afs_i_init_once(void *_vnode) |
|
{ |
|
struct afs_vnode *vnode = _vnode; |
|
|
|
memset(vnode, 0, sizeof(*vnode)); |
|
inode_init_once(&vnode->vfs_inode); |
|
mutex_init(&vnode->io_lock); |
|
init_rwsem(&vnode->validate_lock); |
|
spin_lock_init(&vnode->wb_lock); |
|
spin_lock_init(&vnode->lock); |
|
INIT_LIST_HEAD(&vnode->wb_keys); |
|
INIT_LIST_HEAD(&vnode->pending_locks); |
|
INIT_LIST_HEAD(&vnode->granted_locks); |
|
INIT_DELAYED_WORK(&vnode->lock_work, afs_lock_work); |
|
seqlock_init(&vnode->cb_lock); |
|
} |
|
|
|
/* |
|
* allocate an AFS inode struct from our slab cache |
|
*/ |
|
static struct inode *afs_alloc_inode(struct super_block *sb) |
|
{ |
|
struct afs_vnode *vnode; |
|
|
|
vnode = kmem_cache_alloc(afs_inode_cachep, GFP_KERNEL); |
|
if (!vnode) |
|
return NULL; |
|
|
|
atomic_inc(&afs_count_active_inodes); |
|
|
|
/* Reset anything that shouldn't leak from one inode to the next. */ |
|
memset(&vnode->fid, 0, sizeof(vnode->fid)); |
|
memset(&vnode->status, 0, sizeof(vnode->status)); |
|
|
|
vnode->volume = NULL; |
|
vnode->lock_key = NULL; |
|
vnode->permit_cache = NULL; |
|
#ifdef CONFIG_AFS_FSCACHE |
|
vnode->cache = NULL; |
|
#endif |
|
|
|
vnode->flags = 1 << AFS_VNODE_UNSET; |
|
vnode->lock_state = AFS_VNODE_LOCK_NONE; |
|
|
|
init_rwsem(&vnode->rmdir_lock); |
|
INIT_WORK(&vnode->cb_work, afs_invalidate_mmap_work); |
|
|
|
_leave(" = %p", &vnode->vfs_inode); |
|
return &vnode->vfs_inode; |
|
} |
|
|
|
static void afs_free_inode(struct inode *inode) |
|
{ |
|
kmem_cache_free(afs_inode_cachep, AFS_FS_I(inode)); |
|
} |
|
|
|
/* |
|
* destroy an AFS inode struct |
|
*/ |
|
static void afs_destroy_inode(struct inode *inode) |
|
{ |
|
struct afs_vnode *vnode = AFS_FS_I(inode); |
|
|
|
_enter("%p{%llx:%llu}", inode, vnode->fid.vid, vnode->fid.vnode); |
|
|
|
_debug("DESTROY INODE %p", inode); |
|
|
|
atomic_dec(&afs_count_active_inodes); |
|
} |
|
|
|
static void afs_get_volume_status_success(struct afs_operation *op) |
|
{ |
|
struct afs_volume_status *vs = &op->volstatus.vs; |
|
struct kstatfs *buf = op->volstatus.buf; |
|
|
|
if (vs->max_quota == 0) |
|
buf->f_blocks = vs->part_max_blocks; |
|
else |
|
buf->f_blocks = vs->max_quota; |
|
|
|
if (buf->f_blocks > vs->blocks_in_use) |
|
buf->f_bavail = buf->f_bfree = |
|
buf->f_blocks - vs->blocks_in_use; |
|
} |
|
|
|
static const struct afs_operation_ops afs_get_volume_status_operation = { |
|
.issue_afs_rpc = afs_fs_get_volume_status, |
|
.issue_yfs_rpc = yfs_fs_get_volume_status, |
|
.success = afs_get_volume_status_success, |
|
}; |
|
|
|
/* |
|
* return information about an AFS volume |
|
*/ |
|
static int afs_statfs(struct dentry *dentry, struct kstatfs *buf) |
|
{ |
|
struct afs_super_info *as = AFS_FS_S(dentry->d_sb); |
|
struct afs_operation *op; |
|
struct afs_vnode *vnode = AFS_FS_I(d_inode(dentry)); |
|
|
|
buf->f_type = dentry->d_sb->s_magic; |
|
buf->f_bsize = AFS_BLOCK_SIZE; |
|
buf->f_namelen = AFSNAMEMAX - 1; |
|
|
|
if (as->dyn_root) { |
|
buf->f_blocks = 1; |
|
buf->f_bavail = 0; |
|
buf->f_bfree = 0; |
|
return 0; |
|
} |
|
|
|
op = afs_alloc_operation(NULL, as->volume); |
|
if (IS_ERR(op)) |
|
return PTR_ERR(op); |
|
|
|
afs_op_set_vnode(op, 0, vnode); |
|
op->nr_files = 1; |
|
op->volstatus.buf = buf; |
|
op->ops = &afs_get_volume_status_operation; |
|
return afs_do_sync_operation(op); |
|
}
|
|
|