diff options
Diffstat (limited to 'fs/afs')
| -rw-r--r-- | fs/afs/Kconfig | 1 | ||||
| -rw-r--r-- | fs/afs/cell.c | 96 | ||||
| -rw-r--r-- | fs/afs/dir.c | 47 | ||||
| -rw-r--r-- | fs/afs/inode.c | 91 | ||||
| -rw-r--r-- | fs/afs/internal.h | 25 | ||||
| -rw-r--r-- | fs/afs/main.c | 9 | ||||
| -rw-r--r-- | fs/afs/mntpt.c | 78 | ||||
| -rw-r--r-- | fs/afs/proc.c | 2 | ||||
| -rw-r--r-- | fs/afs/rxrpc.c | 1 | ||||
| -rw-r--r-- | fs/afs/super.c | 22 |
10 files changed, 301 insertions, 71 deletions
diff --git a/fs/afs/Kconfig b/fs/afs/Kconfig index 5c4e61d3c772..8f975f25b486 100644 --- a/fs/afs/Kconfig +++ b/fs/afs/Kconfig @@ -2,6 +2,7 @@ config AFS_FS tristate "Andrew File System support (AFS) (EXPERIMENTAL)" depends on INET && EXPERIMENTAL select AF_RXRPC + select DNS_RESOLVER help If you say Y here, you will get an experimental Andrew File System driver. It currently only supports unsecured read-only AFS access. diff --git a/fs/afs/cell.c b/fs/afs/cell.c index e19c13f059ed..0d5eeadf6121 100644 --- a/fs/afs/cell.c +++ b/fs/afs/cell.c @@ -13,6 +13,7 @@ #include <linux/slab.h> #include <linux/key.h> #include <linux/ctype.h> +#include <linux/dns_resolver.h> #include <linux/sched.h> #include <keys/rxrpc-type.h> #include "internal.h" @@ -30,21 +31,24 @@ static struct afs_cell *afs_cell_root; * allocate a cell record and fill in its name, VL server address list and * allocate an anonymous key */ -static struct afs_cell *afs_cell_alloc(const char *name, char *vllist) +static struct afs_cell *afs_cell_alloc(const char *name, unsigned namelen, + char *vllist) { struct afs_cell *cell; struct key *key; - size_t namelen; char keyname[4 + AFS_MAXCELLNAME + 1], *cp, *dp, *next; + char *dvllist = NULL, *_vllist = NULL; + char delimiter = ':'; int ret; - _enter("%s,%s", name, vllist); + _enter("%*.*s,%s", namelen, namelen, name ?: "", vllist); BUG_ON(!name); /* TODO: want to look up "this cell" in the cache */ - namelen = strlen(name); - if (namelen > AFS_MAXCELLNAME) + if (namelen > AFS_MAXCELLNAME) { + _leave(" = -ENAMETOOLONG"); return ERR_PTR(-ENAMETOOLONG); + } /* allocate and initialise a cell record */ cell = kzalloc(sizeof(struct afs_cell) + namelen + 1, GFP_KERNEL); @@ -64,15 +68,35 @@ static struct afs_cell *afs_cell_alloc(const char *name, char *vllist) INIT_LIST_HEAD(&cell->vl_list); spin_lock_init(&cell->vl_lock); + /* if the ip address is invalid, try dns query */ + if (!vllist || strlen(vllist) < 7) { + ret = dns_query("afsdb", name, namelen, "ipv4", &dvllist, NULL); + if (ret < 0) { + if (ret == -ENODATA || ret == -EAGAIN || ret == -ENOKEY) + /* translate these errors into something + * userspace might understand */ + ret = -EDESTADDRREQ; + _leave(" = %d", ret); + return ERR_PTR(ret); + } + _vllist = dvllist; + + /* change the delimiter for user-space reply */ + delimiter = ','; + + } else { + _vllist = vllist; + } + /* fill in the VL server list from the rest of the string */ do { unsigned a, b, c, d; - next = strchr(vllist, ':'); + next = strchr(_vllist, delimiter); if (next) *next++ = 0; - if (sscanf(vllist, "%u.%u.%u.%u", &a, &b, &c, &d) != 4) + if (sscanf(_vllist, "%u.%u.%u.%u", &a, &b, &c, &d) != 4) goto bad_address; if (a > 255 || b > 255 || c > 255 || d > 255) @@ -81,7 +105,7 @@ static struct afs_cell *afs_cell_alloc(const char *name, char *vllist) cell->vl_addrs[cell->vl_naddrs++].s_addr = htonl((a << 24) | (b << 16) | (c << 8) | d); - } while (cell->vl_naddrs < AFS_CELL_MAX_ADDRS && (vllist = next)); + } while (cell->vl_naddrs < AFS_CELL_MAX_ADDRS && (_vllist = next)); /* create a key to represent an anonymous user */ memcpy(keyname, "afs@", 4); @@ -110,32 +134,36 @@ bad_address: ret = -EINVAL; error: key_put(cell->anonymous_key); + kfree(dvllist); kfree(cell); _leave(" = %d", ret); return ERR_PTR(ret); } /* - * create a cell record - * - "name" is the name of the cell - * - "vllist" is a colon separated list of IP addresses in "a.b.c.d" format + * afs_cell_crate() - create a cell record + * @name: is the name of the cell. + * @namsesz: is the strlen of the cell name. + * @vllist: is a colon separated list of IP addresses in "a.b.c.d" format. + * @retref: is T to return the cell reference when the cell exists. */ -struct afs_cell *afs_cell_create(const char *name, char *vllist) +struct afs_cell *afs_cell_create(const char *name, unsigned namesz, + char *vllist, bool retref) { struct afs_cell *cell; int ret; - _enter("%s,%s", name, vllist); + _enter("%*.*s,%s", namesz, namesz, name ?: "", vllist); down_write(&afs_cells_sem); read_lock(&afs_cells_lock); list_for_each_entry(cell, &afs_cells, link) { - if (strcasecmp(cell->name, name) == 0) + if (strncasecmp(cell->name, name, namesz) == 0) goto duplicate_name; } read_unlock(&afs_cells_lock); - cell = afs_cell_alloc(name, vllist); + cell = afs_cell_alloc(name, namesz, vllist); if (IS_ERR(cell)) { _leave(" = %ld", PTR_ERR(cell)); up_write(&afs_cells_sem); @@ -175,8 +203,18 @@ error: return ERR_PTR(ret); duplicate_name: + if (retref && !IS_ERR(cell)) + afs_get_cell(cell); + read_unlock(&afs_cells_lock); up_write(&afs_cells_sem); + + if (retref) { + _leave(" = %p", cell); + return cell; + } + + _leave(" = -EEXIST"); return ERR_PTR(-EEXIST); } @@ -201,15 +239,13 @@ int afs_cell_init(char *rootcell) } cp = strchr(rootcell, ':'); - if (!cp) { - printk(KERN_ERR "kAFS: no VL server IP addresses specified\n"); - _leave(" = -EINVAL"); - return -EINVAL; - } + if (!cp) + _debug("kAFS: no VL server IP addresses specified"); + else + *cp++ = 0; /* allocate a cell record for the root cell */ - *cp++ = 0; - new_root = afs_cell_create(rootcell, cp); + new_root = afs_cell_create(rootcell, strlen(rootcell), cp, false); if (IS_ERR(new_root)) { _leave(" = %ld", PTR_ERR(new_root)); return PTR_ERR(new_root); @@ -229,11 +265,12 @@ int afs_cell_init(char *rootcell) /* * lookup a cell record */ -struct afs_cell *afs_cell_lookup(const char *name, unsigned namesz) +struct afs_cell *afs_cell_lookup(const char *name, unsigned namesz, + bool dns_cell) { struct afs_cell *cell; - _enter("\"%*.*s\",", namesz, namesz, name ? name : ""); + _enter("\"%*.*s\",", namesz, namesz, name ?: ""); down_read(&afs_cells_sem); read_lock(&afs_cells_lock); @@ -247,6 +284,8 @@ struct afs_cell *afs_cell_lookup(const char *name, unsigned namesz) } } cell = ERR_PTR(-ENOENT); + if (dns_cell) + goto create_cell; found: ; } else { @@ -269,6 +308,15 @@ struct afs_cell *afs_cell_lookup(const char *name, unsigned namesz) up_read(&afs_cells_sem); _leave(" = %p", cell); return cell; + +create_cell: + read_unlock(&afs_cells_lock); + up_read(&afs_cells_sem); + + cell = afs_cell_create(name, namesz, NULL, true); + + _leave(" = %p", cell); + return cell; } #if 0 diff --git a/fs/afs/dir.c b/fs/afs/dir.c index b42d5cc1d6d2..0d38c09bd55e 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -477,6 +477,40 @@ static int afs_do_lookup(struct inode *dir, struct dentry *dentry, } /* + * Try to auto mount the mountpoint with pseudo directory, if the autocell + * operation is setted. + */ +static struct inode *afs_try_auto_mntpt( + int ret, struct dentry *dentry, struct inode *dir, struct key *key, + struct afs_fid *fid) +{ + const char *devname = dentry->d_name.name; + struct afs_vnode *vnode = AFS_FS_I(dir); + struct inode *inode; + + _enter("%d, %p{%s}, {%x:%u}, %p", + ret, dentry, devname, vnode->fid.vid, vnode->fid.vnode, key); + + if (ret != -ENOENT || + !test_bit(AFS_VNODE_AUTOCELL, &vnode->flags)) + goto out; + + inode = afs_iget_autocell(dir, devname, strlen(devname), key); + if (IS_ERR(inode)) { + ret = PTR_ERR(inode); + goto out; + } + + *fid = AFS_FS_I(inode)->fid; + _leave("= %p", inode); + return inode; + +out: + _leave("= %d", ret); + return ERR_PTR(ret); +} + +/* * look up an entry in a directory */ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry, @@ -520,6 +554,13 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry, ret = afs_do_lookup(dir, dentry, &fid, key); if (ret < 0) { + inode = afs_try_auto_mntpt(ret, dentry, dir, key, &fid); + if (!IS_ERR(inode)) { + key_put(key); + goto success; + } + + ret = PTR_ERR(inode); key_put(key); if (ret == -ENOENT) { d_add(dentry, NULL); @@ -539,6 +580,7 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry, return ERR_CAST(inode); } +success: dentry->d_op = &afs_fs_dentry_operations; d_add(dentry, inode); @@ -696,8 +738,9 @@ static int afs_d_delete(struct dentry *dentry) goto zap; if (dentry->d_inode && - test_bit(AFS_VNODE_DELETED, &AFS_FS_I(dentry->d_inode)->flags)) - goto zap; + (test_bit(AFS_VNODE_DELETED, &AFS_FS_I(dentry->d_inode)->flags) || + test_bit(AFS_VNODE_PSEUDODIR, &AFS_FS_I(dentry->d_inode)->flags))) + goto zap; _leave(" = 0 [keep]"); return 0; diff --git a/fs/afs/inode.c b/fs/afs/inode.c index d00b312e3110..0747339011c3 100644 --- a/fs/afs/inode.c +++ b/fs/afs/inode.c @@ -19,6 +19,8 @@ #include <linux/fs.h> #include <linux/pagemap.h> #include <linux/sched.h> +#include <linux/mount.h> +#include <linux/namei.h> #include "internal.h" struct afs_iget_data { @@ -102,6 +104,16 @@ static int afs_iget5_test(struct inode *inode, void *opaque) } /* + * iget5() comparator for inode created by autocell operations + * + * These pseudo inodes don't match anything. + */ +static int afs_iget5_autocell_test(struct inode *inode, void *opaque) +{ + return 0; +} + +/* * iget5() inode initialiser */ static int afs_iget5_set(struct inode *inode, void *opaque) @@ -118,6 +130,67 @@ static int afs_iget5_set(struct inode *inode, void *opaque) } /* + * inode retrieval for autocell + */ +struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name, + int namesz, struct key *key) +{ + struct afs_iget_data data; + struct afs_super_info *as; + struct afs_vnode *vnode; + struct super_block *sb; + struct inode *inode; + static atomic_t afs_autocell_ino; + + _enter("{%x:%u},%*.*s,", + AFS_FS_I(dir)->fid.vid, AFS_FS_I(dir)->fid.vnode, + namesz, namesz, dev_name ?: ""); + + sb = dir->i_sb; + as = sb->s_fs_info; + data.volume = as->volume; + data.fid.vid = as->volume->vid; + data.fid.unique = 0; + data.fid.vnode = 0; + + inode = iget5_locked(sb, atomic_inc_return(&afs_autocell_ino), + afs_iget5_autocell_test, afs_iget5_set, + &data); + if (!inode) { + _leave(" = -ENOMEM"); + return ERR_PTR(-ENOMEM); + } + + _debug("GOT INODE %p { ino=%lu, vl=%x, vn=%x, u=%x }", + inode, inode->i_ino, data.fid.vid, data.fid.vnode, + data.fid.unique); + + vnode = AFS_FS_I(inode); + + /* there shouldn't be an existing inode */ + BUG_ON(!(inode->i_state & I_NEW)); + + inode->i_size = 0; + inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO; + inode->i_op = &afs_autocell_inode_operations; + inode->i_nlink = 2; + inode->i_uid = 0; + inode->i_gid = 0; + inode->i_ctime.tv_sec = get_seconds(); + inode->i_ctime.tv_nsec = 0; + inode->i_atime = inode->i_mtime = inode->i_ctime; + inode->i_blocks = 0; + inode->i_version = 0; + inode->i_generation = 0; + + set_bit(AFS_VNODE_PSEUDODIR, &vnode->flags); + inode->i_flags |= S_NOATIME; + unlock_new_inode(inode); + _leave(" = %p", inode); + return inode; +} + +/* * inode retrieval */ struct inode *afs_iget(struct super_block *sb, struct key *key, @@ -314,9 +387,22 @@ int afs_getattr(struct vfsmount *mnt, struct dentry *dentry, } /* + * discard an AFS inode + */ +int afs_drop_inode(struct inode *inode) +{ + _enter(""); + + if (test_bit(AFS_VNODE_PSEUDODIR, &AFS_FS_I(inode)->flags)) + return generic_delete_inode(inode); + else + return generic_drop_inode(inode); +} + +/* * clear an AFS inode */ -void afs_clear_inode(struct inode *inode) +void afs_evict_inode(struct inode *inode) { struct afs_permits *permits; struct afs_vnode *vnode; @@ -335,6 +421,9 @@ void afs_clear_inode(struct inode *inode) ASSERTCMP(inode->i_ino, ==, vnode->fid.vnode); + truncate_inode_pages(&inode->i_data, 0); + end_writeback(inode); + afs_give_up_callback(vnode); if (vnode->server) { diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 5f679b77ce24..cca8eef736fc 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -42,6 +42,7 @@ typedef enum { struct afs_mount_params { bool rwpath; /* T if the parent should be considered R/W */ bool force; /* T to force cell type */ + bool autocell; /* T if set auto mount operation */ afs_voltype_t type; /* type of volume requested */ int volnamesz; /* size of volume name */ const char *volname; /* name of volume to mount */ @@ -358,6 +359,8 @@ struct afs_vnode { #define AFS_VNODE_READLOCKED 7 /* set if vnode is read-locked on the server */ #define AFS_VNODE_WRITELOCKED 8 /* set if vnode is write-locked on the server */ #define AFS_VNODE_UNLOCKING 9 /* set if vnode is being unlocked on the server */ +#define AFS_VNODE_AUTOCELL 10 /* set if Vnode is an auto mount point */ +#define AFS_VNODE_PSEUDODIR 11 /* set if Vnode is a pseudo directory */ long acl_order; /* ACL check count (callback break count) */ @@ -468,8 +471,8 @@ extern struct list_head afs_proc_cells; #define afs_get_cell(C) do { atomic_inc(&(C)->usage); } while(0) extern int afs_cell_init(char *); -extern struct afs_cell *afs_cell_create(const char *, char *); -extern struct afs_cell *afs_cell_lookup(const char *, unsigned); +extern struct afs_cell *afs_cell_create(const char *, unsigned, char *, bool); +extern struct afs_cell *afs_cell_lookup(const char *, unsigned, bool); extern struct afs_cell *afs_grab_cell(struct afs_cell *); extern void afs_put_cell(struct afs_cell *); extern void afs_cell_purge(void); @@ -558,6 +561,8 @@ extern int afs_fs_release_lock(struct afs_server *, struct key *, /* * inode.c */ +extern struct inode *afs_iget_autocell(struct inode *, const char *, int, + struct key *); extern struct inode *afs_iget(struct super_block *, struct key *, struct afs_fid *, struct afs_file_status *, struct afs_callback *); @@ -565,7 +570,8 @@ extern void afs_zap_data(struct afs_vnode *); extern int afs_validate(struct afs_vnode *, struct key *); extern int afs_getattr(struct vfsmount *, struct dentry *, struct kstat *); extern int afs_setattr(struct dentry *, struct iattr *); -extern void afs_clear_inode(struct inode *); +extern void afs_evict_inode(struct inode *); +extern int afs_drop_inode(struct inode *); /* * main.c @@ -581,6 +587,7 @@ extern int afs_abort_to_error(u32); * mntpt.c */ extern const struct inode_operations afs_mntpt_inode_operations; +extern const struct inode_operations afs_autocell_inode_operations; extern const struct file_operations afs_mntpt_file_operations; extern int afs_mntpt_check_symlink(struct afs_vnode *, struct key *); @@ -752,12 +759,6 @@ extern unsigned afs_debug; #define dbgprintk(FMT,...) \ printk("[%-6.6s] "FMT"\n", current->comm ,##__VA_ARGS__) -/* make sure we maintain the format strings, even when debugging is disabled */ -static inline __attribute__((format(printf,1,2))) -void _dbprintk(const char *fmt, ...) -{ -} - #define kenter(FMT,...) dbgprintk("==> %s("FMT")",__func__ ,##__VA_ARGS__) #define kleave(FMT,...) dbgprintk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) #define kdebug(FMT,...) dbgprintk(" "FMT ,##__VA_ARGS__) @@ -792,9 +793,9 @@ do { \ } while (0) #else -#define _enter(FMT,...) _dbprintk("==> %s("FMT")",__func__ ,##__VA_ARGS__) -#define _leave(FMT,...) _dbprintk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) -#define _debug(FMT,...) _dbprintk(" "FMT ,##__VA_ARGS__) +#define _enter(FMT,...) no_printk("==> %s("FMT")",__func__ ,##__VA_ARGS__) +#define _leave(FMT,...) no_printk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) +#define _debug(FMT,...) no_printk(" "FMT ,##__VA_ARGS__) #endif /* diff --git a/fs/afs/main.c b/fs/afs/main.c index 66d54d348c55..cfd1cbe25b22 100644 --- a/fs/afs/main.c +++ b/fs/afs/main.c @@ -111,6 +111,8 @@ static int __init afs_init(void) /* initialise the callback update process */ ret = afs_callback_update_init(); + if (ret < 0) + goto error_callback_update_init; /* create the RxRPC transport */ ret = afs_open_socket(); @@ -127,15 +129,16 @@ static int __init afs_init(void) error_fs: afs_close_socket(); error_open_socket: + afs_callback_update_kill(); +error_callback_update_init: + afs_vlocation_purge(); error_vl_update_init: + afs_cell_purge(); error_cell_init: #ifdef CONFIG_AFS_FSCACHE fscache_unregister_netfs(&afs_cache_netfs); error_cache: #endif - afs_callback_update_kill(); - afs_vlocation_purge(); - afs_cell_purge(); afs_proc_cleanup(); rcu_barrier(); printk(KERN_ERR "kAFS: failed to register: %d\n", ret); diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c index a9e23039ea34..6d552686c498 100644 --- a/fs/afs/mntpt.c +++ b/fs/afs/mntpt.c @@ -38,6 +38,11 @@ const struct inode_operations afs_mntpt_inode_operations = { .getattr = afs_getattr, }; +const struct inode_operations afs_autocell_inode_operations = { + .follow_link = afs_mntpt_follow_link, + .getattr = afs_getattr, +}; + static LIST_HEAD(afs_vfsmounts); static DECLARE_DELAYED_WORK(afs_mntpt_expiry_timer, afs_mntpt_expiry_timed_out); @@ -136,20 +141,16 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt) { struct afs_super_info *super; struct vfsmount *mnt; + struct afs_vnode *vnode; struct page *page; - size_t size; - char *buf, *devname, *options; + char *devname, *options; + bool rwpath = false; int ret; _enter("{%s}", mntpt->d_name.name); BUG_ON(!mntpt->d_inode); - ret = -EINVAL; - size = mntpt->d_inode->i_size; - if (size > PAGE_SIZE - 1) - goto error_no_devname; - ret = -ENOMEM; devname = (char *) get_zeroed_page(GFP_KERNEL); if (!devname) @@ -159,28 +160,59 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt) if (!options) goto error_no_options; - /* read the contents of the AFS special symlink */ - page = read_mapping_page(mntpt->d_inode->i_mapping, 0, NULL); - if (IS_ERR(page)) { - ret = PTR_ERR(page); - goto error_no_page; + vnode = AFS_FS_I(mntpt->d_inode); + if (test_bit(AFS_VNODE_PSEUDODIR, &vnode->flags)) { + /* if the directory is a pseudo directory, use the d_name */ + static const char afs_root_cell[] = ":root.cell."; + unsigned size = mntpt->d_name.len; + + ret = -ENOENT; + if (size < 2 || size > AFS_MAXCELLNAME) + goto error_no_page; + + if (mntpt->d_name.name[0] == '.') { + devname[0] = '#'; + memcpy(devname + 1, mntpt->d_name.name, size - 1); + memcpy(devname + size, afs_root_cell, + sizeof(afs_root_cell)); + rwpath = true; + } else { + devname[0] = '%'; + memcpy(devname + 1, mntpt->d_name.name, size); + memcpy(devname + size + 1, afs_root_cell, + sizeof(afs_root_cell)); + } + } else { + /* read the contents of the AFS special symlink */ + loff_t size = i_size_read(mntpt->d_inode); + char *buf; + + ret = -EINVAL; + if (size > PAGE_SIZE - 1) + goto error_no_page; + + page = read_mapping_page(mntpt->d_inode->i_mapping, 0, NULL); + if (IS_ERR(page)) { + ret = PTR_ERR(page); + goto error_no_page; + } + + ret = -EIO; + if (PageError(page)) + goto error; + + buf = kmap_atomic(page, KM_USER0); + memcpy(devname, buf, size); + kunmap_atomic(buf, KM_USER0); + page_cache_release(page); + page = NULL; } - ret = -EIO; - if (PageError(page)) - goto error; - - buf = kmap_atomic(page, KM_USER0); - memcpy(devname, buf, size); - kunmap_atomic(buf, KM_USER0); - page_cache_release(page); - page = NULL; - /* work out what options we want */ super = AFS_FS_S(mntpt->d_sb); memcpy(options, "cell=", 5); strcpy(options + 5, super->volume->cell->name); - if (super->volume->type == AFSVL_RWVOL) + if (super->volume->type == AFSVL_RWVOL || rwpath) strcat(options, ",rwpath"); /* try and do the mount */ diff --git a/fs/afs/proc.c b/fs/afs/proc.c index 852739d262a9..096b23f821a1 100644 --- a/fs/afs/proc.c +++ b/fs/afs/proc.c @@ -294,7 +294,7 @@ static ssize_t afs_proc_cells_write(struct file *file, const char __user *buf, if (strcmp(kbuf, "add") == 0) { struct afs_cell *cell; - cell = afs_cell_create(name, args); + cell = afs_cell_create(name, strlen(name), args, false); if (IS_ERR(cell)) { ret = PTR_ERR(cell); goto done; diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c index 67cf810e0fd6..654d8fdbf01f 100644 --- a/fs/afs/rxrpc.c +++ b/fs/afs/rxrpc.c @@ -100,6 +100,7 @@ int afs_open_socket(void) ret = kernel_bind(socket, (struct sockaddr *) &srx, sizeof(srx)); if (ret < 0) { sock_release(socket); + destroy_workqueue(afs_async_calls); _leave(" = %d [bind]", ret); return ret; } diff --git a/fs/afs/super.c b/fs/afs/super.c index e932e5a3a0c1..77e1e5a61154 100644 --- a/fs/afs/super.c +++ b/fs/afs/super.c @@ -16,6 +16,7 @@ #include <linux/kernel.h> #include <linux/module.h> +#include <linux/mount.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/smp_lock.h> @@ -48,8 +49,9 @@ struct file_system_type afs_fs_type = { static const struct super_operations afs_super_ops = { .statfs = afs_statfs, .alloc_inode = afs_alloc_inode, + .drop_inode = afs_drop_inode, .destroy_inode = afs_destroy_inode, - .clear_inode = afs_clear_inode, + .evict_inode = afs_evict_inode, .put_super = afs_put_super, .show_options = generic_show_options, }; @@ -62,12 +64,14 @@ enum { afs_opt_cell, afs_opt_rwpath, afs_opt_vol, + afs_opt_autocell, }; static const match_table_t afs_options_list = { { afs_opt_cell, "cell=%s" }, { afs_opt_rwpath, "rwpath" }, { afs_opt_vol, "vol=%s" }, + { afs_opt_autocell, "autocell" }, { afs_no_opt, NULL }, }; @@ -151,7 +155,8 @@ static int afs_parse_options(struct afs_mount_params *params, switch (token) { case afs_opt_cell: cell = afs_cell_lookup(args[0].from, - args[0].to - args[0].from); + args[0].to - args[0].from, + false); if (IS_ERR(cell)) return PTR_ERR(cell); afs_put_cell(params->cell); @@ -166,6 +171,10 @@ static int afs_parse_options(struct afs_mount_params *params, *devname = args[0].from; break; + case afs_opt_autocell: + params->autocell = 1; + break; + default: printk(KERN_ERR "kAFS:" " Unknown or invalid mount option: '%s'\n", p); @@ -252,10 +261,10 @@ static int afs_parse_device_name(struct afs_mount_params *params, /* lookup the cell record */ if (cellname || !params->cell) { - cell = afs_cell_lookup(cellname, cellnamesz); + cell = afs_cell_lookup(cellname, cellnamesz, true); if (IS_ERR(cell)) { - printk(KERN_ERR "kAFS: unable to lookup cell '%s'\n", - cellname ?: ""); + printk(KERN_ERR "kAFS: unable to lookup cell '%*.*s'\n", + cellnamesz, cellnamesz, cellname ?: ""); return PTR_ERR(cell); } afs_put_cell(params->cell); @@ -321,6 +330,9 @@ static int afs_fill_super(struct super_block *sb, void *data) if (IS_ERR(inode)) goto error_inode; + if (params->autocell) + set_bit(AFS_VNODE_AUTOCELL, &AFS_FS_I(inode)->flags); + ret = -ENOMEM; root = d_alloc_root(inode); if (!root) |