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path: root/fs/ceph/super.c
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Diffstat (limited to 'fs/ceph/super.c')
-rw-r--r--fs/ceph/super.c90
1 files changed, 59 insertions, 31 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index e4082afedcb1..b33082e6878f 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -76,16 +76,26 @@ static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf)
*/
buf->f_bsize = 1 << CEPH_BLOCK_SHIFT;
buf->f_frsize = 1 << CEPH_BLOCK_SHIFT;
- buf->f_blocks = le64_to_cpu(st.kb) >> (CEPH_BLOCK_SHIFT-10);
- buf->f_bfree = le64_to_cpu(st.kb_avail) >> (CEPH_BLOCK_SHIFT-10);
- buf->f_bavail = le64_to_cpu(st.kb_avail) >> (CEPH_BLOCK_SHIFT-10);
+
+ /*
+ * By default use root quota for stats; fallback to overall filesystem
+ * usage if using 'noquotadf' mount option or if the root dir doesn't
+ * have max_bytes quota set.
+ */
+ if (ceph_test_mount_opt(fsc, NOQUOTADF) ||
+ !ceph_quota_update_statfs(fsc, buf)) {
+ buf->f_blocks = le64_to_cpu(st.kb) >> (CEPH_BLOCK_SHIFT-10);
+ buf->f_bfree = le64_to_cpu(st.kb_avail) >> (CEPH_BLOCK_SHIFT-10);
+ buf->f_bavail = le64_to_cpu(st.kb_avail) >> (CEPH_BLOCK_SHIFT-10);
+ }
buf->f_files = le64_to_cpu(st.num_objects);
buf->f_ffree = -1;
buf->f_namelen = NAME_MAX;
- /* leave fsid little-endian, regardless of host endianness */
- fsid = *(u64 *)(&monmap->fsid) ^ *((u64 *)&monmap->fsid + 1);
+ /* Must convert the fsid, for consistent values across arches */
+ fsid = le64_to_cpu(*(__le64 *)(&monmap->fsid)) ^
+ le64_to_cpu(*((__le64 *)&monmap->fsid + 1));
buf->f_fsid.val[0] = fsid & 0xffffffff;
buf->f_fsid.val[1] = fsid >> 32;
@@ -150,6 +160,8 @@ enum {
Opt_acl,
#endif
Opt_noacl,
+ Opt_quotadf,
+ Opt_noquotadf,
};
static match_table_t fsopt_tokens = {
@@ -186,6 +198,8 @@ static match_table_t fsopt_tokens = {
{Opt_acl, "acl"},
#endif
{Opt_noacl, "noacl"},
+ {Opt_quotadf, "quotadf"},
+ {Opt_noquotadf, "noquotadf"},
{-1, NULL}
};
@@ -224,6 +238,7 @@ static int parse_fsopt_token(char *c, void *private)
return -ENOMEM;
break;
case Opt_mds_namespace:
+ kfree(fsopt->mds_namespace);
fsopt->mds_namespace = kstrndup(argstr[0].from,
argstr[0].to-argstr[0].from,
GFP_KERNEL);
@@ -231,6 +246,7 @@ static int parse_fsopt_token(char *c, void *private)
return -ENOMEM;
break;
case Opt_fscache_uniq:
+ kfree(fsopt->fscache_uniq);
fsopt->fscache_uniq = kstrndup(argstr[0].from,
argstr[0].to-argstr[0].from,
GFP_KERNEL);
@@ -311,13 +327,16 @@ static int parse_fsopt_token(char *c, void *private)
break;
case Opt_fscache:
fsopt->flags |= CEPH_MOUNT_OPT_FSCACHE;
+ kfree(fsopt->fscache_uniq);
+ fsopt->fscache_uniq = NULL;
break;
case Opt_nofscache:
fsopt->flags &= ~CEPH_MOUNT_OPT_FSCACHE;
+ kfree(fsopt->fscache_uniq);
+ fsopt->fscache_uniq = NULL;
break;
case Opt_poolperm:
fsopt->flags &= ~CEPH_MOUNT_OPT_NOPOOLPERM;
- printk ("pool perm");
break;
case Opt_nopoolperm:
fsopt->flags |= CEPH_MOUNT_OPT_NOPOOLPERM;
@@ -328,13 +347,19 @@ static int parse_fsopt_token(char *c, void *private)
case Opt_norequire_active_mds:
fsopt->flags |= CEPH_MOUNT_OPT_MOUNTWAIT;
break;
+ case Opt_quotadf:
+ fsopt->flags &= ~CEPH_MOUNT_OPT_NOQUOTADF;
+ break;
+ case Opt_noquotadf:
+ fsopt->flags |= CEPH_MOUNT_OPT_NOQUOTADF;
+ break;
#ifdef CONFIG_CEPH_FS_POSIX_ACL
case Opt_acl:
- fsopt->sb_flags |= MS_POSIXACL;
+ fsopt->sb_flags |= SB_POSIXACL;
break;
#endif
case Opt_noacl:
- fsopt->sb_flags &= ~MS_POSIXACL;
+ fsopt->sb_flags &= ~SB_POSIXACL;
break;
default:
BUG_ON(token);
@@ -510,23 +535,22 @@ static int ceph_show_options(struct seq_file *m, struct dentry *root)
if ((fsopt->flags & CEPH_MOUNT_OPT_DCACHE) == 0)
seq_puts(m, ",nodcache");
if (fsopt->flags & CEPH_MOUNT_OPT_FSCACHE) {
- if (fsopt->fscache_uniq)
- seq_printf(m, ",fsc=%s", fsopt->fscache_uniq);
- else
- seq_puts(m, ",fsc");
+ seq_show_option(m, "fsc", fsopt->fscache_uniq);
}
if (fsopt->flags & CEPH_MOUNT_OPT_NOPOOLPERM)
seq_puts(m, ",nopoolperm");
+ if (fsopt->flags & CEPH_MOUNT_OPT_NOQUOTADF)
+ seq_puts(m, ",noquotadf");
#ifdef CONFIG_CEPH_FS_POSIX_ACL
- if (fsopt->sb_flags & MS_POSIXACL)
+ if (fsopt->sb_flags & SB_POSIXACL)
seq_puts(m, ",acl");
else
seq_puts(m, ",noacl");
#endif
if (fsopt->mds_namespace)
- seq_printf(m, ",mds_namespace=%s", fsopt->mds_namespace);
+ seq_show_option(m, "mds_namespace", fsopt->mds_namespace);
if (fsopt->wsize)
seq_printf(m, ",wsize=%d", fsopt->wsize);
if (fsopt->rsize != CEPH_MAX_READ_SIZE)
@@ -676,6 +700,7 @@ struct kmem_cache *ceph_cap_cachep;
struct kmem_cache *ceph_cap_flush_cachep;
struct kmem_cache *ceph_dentry_cachep;
struct kmem_cache *ceph_file_cachep;
+struct kmem_cache *ceph_dir_file_cachep;
static void ceph_inode_init_once(void *foo)
{
@@ -695,8 +720,7 @@ static int __init init_caches(void)
if (!ceph_inode_cachep)
return -ENOMEM;
- ceph_cap_cachep = KMEM_CACHE(ceph_cap,
- SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD);
+ ceph_cap_cachep = KMEM_CACHE(ceph_cap, SLAB_MEM_SPREAD);
if (!ceph_cap_cachep)
goto bad_cap;
ceph_cap_flush_cachep = KMEM_CACHE(ceph_cap_flush,
@@ -710,14 +734,23 @@ static int __init init_caches(void)
goto bad_dentry;
ceph_file_cachep = KMEM_CACHE(ceph_file_info, SLAB_MEM_SPREAD);
-
if (!ceph_file_cachep)
goto bad_file;
- if ((error = ceph_fscache_register()))
- goto bad_file;
+ ceph_dir_file_cachep = KMEM_CACHE(ceph_dir_file_info, SLAB_MEM_SPREAD);
+ if (!ceph_dir_file_cachep)
+ goto bad_dir_file;
+
+ error = ceph_fscache_register();
+ if (error)
+ goto bad_fscache;
return 0;
+
+bad_fscache:
+ kmem_cache_destroy(ceph_dir_file_cachep);
+bad_dir_file:
+ kmem_cache_destroy(ceph_file_cachep);
bad_file:
kmem_cache_destroy(ceph_dentry_cachep);
bad_dentry:
@@ -742,6 +775,7 @@ static void destroy_caches(void)
kmem_cache_destroy(ceph_cap_flush_cachep);
kmem_cache_destroy(ceph_dentry_cachep);
kmem_cache_destroy(ceph_file_cachep);
+ kmem_cache_destroy(ceph_dir_file_cachep);
ceph_fscache_unregister();
}
@@ -835,7 +869,6 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc)
int err;
unsigned long started = jiffies; /* note the start time */
struct dentry *root;
- int first = 0; /* first vfsmount for this super_block */
dout("mount start %p\n", fsc);
mutex_lock(&fsc->client->mount_mutex);
@@ -860,17 +893,17 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc)
path = fsc->mount_options->server_path + 1;
dout("mount opening path %s\n", path);
}
+
+ err = ceph_fs_debugfs_init(fsc);
+ if (err < 0)
+ goto out;
+
root = open_root_dentry(fsc, path, started);
if (IS_ERR(root)) {
err = PTR_ERR(root);
goto out;
}
fsc->sb->s_root = dget(root);
- first = 1;
-
- err = ceph_fs_debugfs_init(fsc);
- if (err < 0)
- goto fail;
} else {
root = dget(fsc->sb->s_root);
}
@@ -880,11 +913,6 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc)
mutex_unlock(&fsc->client->mount_mutex);
return root;
-fail:
- if (first) {
- dput(fsc->sb->s_root);
- fsc->sb->s_root = NULL;
- }
out:
mutex_unlock(&fsc->client->mount_mutex);
return ERR_PTR(err);
@@ -987,7 +1015,7 @@ static struct dentry *ceph_mount(struct file_system_type *fs_type,
dout("ceph_mount\n");
#ifdef CONFIG_CEPH_FS_POSIX_ACL
- flags |= MS_POSIXACL;
+ flags |= SB_POSIXACL;
#endif
err = parse_mount_options(&fsopt, &opt, flags, data, dev_name);
if (err < 0) {
generated by cgit (git 2.34.1) at 2024-05-27 10:41:29 +0000