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Diffstat (limited to 'fs/afs/super.c')
-rw-r--r--fs/afs/super.c34
1 files changed, 32 insertions, 2 deletions
diff --git a/fs/afs/super.c b/fs/afs/super.c
index bab89763119b..783c68cd1a35 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -46,7 +46,7 @@ struct file_system_type afs_fs_type = {
.init_fs_context = afs_init_fs_context,
.parameters = &afs_fs_parameters,
.kill_sb = afs_kill_super,
- .fs_flags = 0,
+ .fs_flags = FS_RENAME_DOES_D_MOVE,
};
MODULE_ALIAS_FS("afs");
@@ -69,19 +69,30 @@ static atomic_t afs_count_active_inodes;
enum afs_param {
Opt_autocell,
Opt_dyn,
+ Opt_flock,
Opt_source,
};
static const struct fs_parameter_spec afs_param_specs[] = {
fsparam_flag ("autocell", Opt_autocell),
fsparam_flag ("dyn", Opt_dyn),
+ fsparam_enum ("flock", Opt_flock),
fsparam_string("source", Opt_source),
{}
};
+static const struct fs_parameter_enum afs_param_enums[] = {
+ { Opt_flock, "local", afs_flock_mode_local },
+ { Opt_flock, "openafs", afs_flock_mode_openafs },
+ { Opt_flock, "strict", afs_flock_mode_strict },
+ { Opt_flock, "write", afs_flock_mode_write },
+ {}
+};
+
static const struct fs_parameter_description afs_fs_parameters = {
.name = "kAFS",
.specs = afs_param_specs,
+ .enums = afs_param_enums,
};
/*
@@ -184,11 +195,22 @@ static int afs_show_devname(struct seq_file *m, struct dentry *root)
static int afs_show_options(struct seq_file *m, struct dentry *root)
{
struct afs_super_info *as = AFS_FS_S(root->d_sb);
+ const char *p = NULL;
if (as->dyn_root)
seq_puts(m, ",dyn");
if (test_bit(AFS_VNODE_AUTOCELL, &AFS_FS_I(d_inode(root))->flags))
seq_puts(m, ",autocell");
+ switch (as->flock_mode) {
+ case afs_flock_mode_unset: break;
+ case afs_flock_mode_local: p = "local"; break;
+ case afs_flock_mode_openafs: p = "openafs"; break;
+ case afs_flock_mode_strict: p = "strict"; break;
+ case afs_flock_mode_write: p = "write"; break;
+ }
+ if (p)
+ seq_printf(m, ",flock=%s", p);
+
return 0;
}
@@ -317,6 +339,10 @@ static int afs_parse_param(struct fs_context *fc, struct fs_parameter *param)
ctx->dyn_root = true;
break;
+ case Opt_flock:
+ ctx->flock_mode = result.uint_32;
+ break;
+
default:
return -EINVAL;
}
@@ -429,7 +455,7 @@ static int afs_fill_super(struct super_block *sb, struct afs_fs_context *ctx)
fid.vnode = 1;
fid.vnode_hi = 0;
fid.unique = 1;
- inode = afs_iget(sb, ctx->key, &fid, NULL, NULL, NULL);
+ inode = afs_iget(sb, ctx->key, &fid, NULL, NULL, NULL, NULL);
}
if (IS_ERR(inode))
@@ -468,6 +494,7 @@ static struct afs_super_info *afs_alloc_sbi(struct fs_context *fc)
as = kzalloc(sizeof(struct afs_super_info), GFP_KERNEL);
if (as) {
as->net_ns = get_net(fc->net_ns);
+ as->flock_mode = ctx->flock_mode;
if (ctx->dyn_root) {
as->dyn_root = true;
} else {
@@ -552,6 +579,7 @@ static int afs_get_tree(struct fs_context *fc)
}
fc->root = dget(sb->s_root);
+ trace_afs_get_tree(as->cell, as->volume);
_leave(" = 0 [%p]", sb);
return 0;
@@ -658,6 +686,8 @@ static struct inode *afs_alloc_inode(struct super_block *sb)
vnode->cb_type = 0;
vnode->lock_state = AFS_VNODE_LOCK_NONE;
+ init_rwsem(&vnode->rmdir_lock);
+
_leave(" = %p", &vnode->vfs_inode);
return &vnode->vfs_inode;
}