Merge tag 'writeback-proportions' of git://git.kernel.org/pub/scm/linux/kernel/git...

[~andy/linux] / fs / super.c

diff --git a/fs/super.c b/fs/super.c
index 3d65443aea8cadf94c6a96a03bfc2f9967677a29..4c5d82f56ec44940c7aadcc16569b9f038f206a8 100644 (file)
--- a/fs/super.c
+++ b/fs/super.c
@@ -105,11 +105,12 @@ static int prune_super(struct shrinker *shrink, struct shrink_control *sc)
 /**
  *     alloc_super     -       create new superblock
  *     @type:  filesystem type superblock should belong to
+ *     @flags: the mount flags
  *
  *     Allocates and initializes a new &struct super_block.  alloc_super()
  *     returns a pointer new superblock or %NULL if allocation had failed.
  */
-static struct super_block *alloc_super(struct file_system_type *type)
+static struct super_block *alloc_super(struct file_system_type *type, int flags)
 {
        struct super_block *s = kzalloc(sizeof(struct super_block),  GFP_USER);
        static const struct super_operations default_op;
@@ -136,6 +137,7 @@ static struct super_block *alloc_super(struct file_system_type *type)
 #else
                INIT_LIST_HEAD(&s->s_files);
 #endif
+               s->s_flags = flags;
                s->s_bdi = &default_backing_dev_info;
                INIT_HLIST_NODE(&s->s_instances);
                INIT_HLIST_BL_HEAD(&s->s_anon);
@@ -415,11 +417,13 @@ EXPORT_SYMBOL(generic_shutdown_super);
  *     @type:  filesystem type superblock should belong to
  *     @test:  comparison callback
  *     @set:   setup callback
+ *     @flags: mount flags
  *     @data:  argument to each of them
  */
 struct super_block *sget(struct file_system_type *type,
                        int (*test)(struct super_block *,void *),
                        int (*set)(struct super_block *,void *),
+                       int flags,
                        void *data)
 {
        struct super_block *s = NULL;
@@ -450,7 +454,7 @@ retry:
        }
        if (!s) {
                spin_unlock(&sb_lock);
-               s = alloc_super(type);
+               s = alloc_super(type, flags);
                if (!s)
                        return ERR_PTR(-ENOMEM);
                goto retry;
@@ -925,13 +929,12 @@ struct dentry *mount_ns(struct file_system_type *fs_type, int flags,
 {
        struct super_block *sb;
 
-       sb = sget(fs_type, ns_test_super, ns_set_super, data);
+       sb = sget(fs_type, ns_test_super, ns_set_super, flags, data);
        if (IS_ERR(sb))
                return ERR_CAST(sb);
 
        if (!sb->s_root) {
                int err;
-               sb->s_flags = flags;
                err = fill_super(sb, data, flags & MS_SILENT ? 1 : 0);
                if (err) {
                        deactivate_locked_super(sb);
@@ -992,7 +995,8 @@ struct dentry *mount_bdev(struct file_system_type *fs_type,
                error = -EBUSY;
                goto error_bdev;
        }
-       s = sget(fs_type, test_bdev_super, set_bdev_super, bdev);
+       s = sget(fs_type, test_bdev_super, set_bdev_super, flags | MS_NOSEC,
+                bdev);
        mutex_unlock(&bdev->bd_fsfreeze_mutex);
        if (IS_ERR(s))
                goto error_s;
@@ -1017,7 +1021,6 @@ struct dentry *mount_bdev(struct file_system_type *fs_type,
        } else {
                char b[BDEVNAME_SIZE];
 
-               s->s_flags = flags | MS_NOSEC;
                s->s_mode = mode;
                strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id));
                sb_set_blocksize(s, block_size(bdev));
@@ -1062,13 +1065,11 @@ struct dentry *mount_nodev(struct file_system_type *fs_type,
        int (*fill_super)(struct super_block *, void *, int))
 {
        int error;
-       struct super_block *s = sget(fs_type, NULL, set_anon_super, NULL);
+       struct super_block *s = sget(fs_type, NULL, set_anon_super, flags, NULL);
 
        if (IS_ERR(s))
                return ERR_CAST(s);
 
-       s->s_flags = flags;
-
        error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
        if (error) {
                deactivate_locked_super(s);
@@ -1091,11 +1092,10 @@ struct dentry *mount_single(struct file_system_type *fs_type,
        struct super_block *s;
        int error;
 
-       s = sget(fs_type, compare_single, set_anon_super, NULL);
+       s = sget(fs_type, compare_single, set_anon_super, flags, NULL);
        if (IS_ERR(s))
                return ERR_CAST(s);
        if (!s->s_root) {
-               s->s_flags = flags;
                error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
                if (error) {
                        deactivate_locked_super(s);