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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-15 22:00:42 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-15 22:00:42 +0300
commit78dcf73421a879d22319d3889119945b85954a68 (patch)
tree26e76f3e9fdc6b40133f2158de23cfe74af9feac /fs/afs/super.c
parent93ff81859733d9697a5a0cc4707e52fb17056abb (diff)
parentfdb254db21bb4aed44a0bc7fe993e58d3848c926 (diff)
downloadlinux-78dcf73421a879d22319d3889119945b85954a68.tar.xz
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull ->s_options removal from Al Viro: "Preparations for fsmount/fsopen stuff (coming next cycle). Everything gets moved to explicit ->show_options(), killing ->s_options off + some cosmetic bits around fs/namespace.c and friends. Basically, the stuff needed to work with fsmount series with minimum of conflicts with other work. It's not strictly required for this merge window, but it would reduce the PITA during the coming cycle, so it would be nice to have those bits and pieces out of the way" * 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: isofs: Fix isofs_show_options() VFS: Kill off s_options and helpers orangefs: Implement show_options 9p: Implement show_options isofs: Implement show_options afs: Implement show_options affs: Implement show_options befs: Implement show_options spufs: Implement show_options bpf: Implement show_options ramfs: Implement show_options pstore: Implement show_options omfs: Implement show_options hugetlbfs: Implement show_options VFS: Don't use save/replace_mount_options if not using generic_show_options VFS: Provide empty name qstr VFS: Make get_filesystem() return the affected filesystem VFS: Clean up whitespace in fs/namespace.c and fs/super.c Provide a function to create a NUL-terminated string from unterminated data
Diffstat (limited to 'fs/afs/super.c')
-rw-r--r--fs/afs/super.c45
1 files changed, 43 insertions, 2 deletions
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 67680c2d96cf..689173c0a682 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -37,6 +37,8 @@ static void afs_kill_super(struct super_block *sb);
static struct inode *afs_alloc_inode(struct super_block *sb);
static void afs_destroy_inode(struct inode *inode);
static int afs_statfs(struct dentry *dentry, struct kstatfs *buf);
+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 file_system_type afs_fs_type = {
.owner = THIS_MODULE,
@@ -53,7 +55,8 @@ static const struct super_operations afs_super_ops = {
.drop_inode = afs_drop_inode,
.destroy_inode = afs_destroy_inode,
.evict_inode = afs_evict_inode,
- .show_options = generic_show_options,
+ .show_devname = afs_show_devname,
+ .show_options = afs_show_options,
};
static struct kmem_cache *afs_inode_cachep;
@@ -136,6 +139,45 @@ void __exit afs_fs_exit(void)
}
/*
+ * Display the mount device name in /proc/mounts.
+ */
+static int afs_show_devname(struct seq_file *m, struct dentry *root)
+{
+ struct afs_super_info *as = root->d_sb->s_fs_info;
+ struct afs_volume *volume = as->volume;
+ struct afs_cell *cell = volume->cell;
+ const char *suf = "";
+ char pref = '%';
+
+ switch (volume->type) {
+ case AFSVL_RWVOL:
+ break;
+ case AFSVL_ROVOL:
+ pref = '#';
+ if (volume->type_force)
+ suf = ".readonly";
+ break;
+ case AFSVL_BACKVOL:
+ pref = '#';
+ suf = ".backup";
+ break;
+ }
+
+ seq_printf(m, "%c%s:%s%s", pref, cell->name, volume->vlocation->vldb.name, suf);
+ return 0;
+}
+
+/*
+ * Display the mount options in /proc/mounts.
+ */
+static int afs_show_options(struct seq_file *m, struct dentry *root)
+{
+ if (test_bit(AFS_VNODE_AUTOCELL, &AFS_FS_I(d_inode(root))->flags))
+ seq_puts(m, "autocell");
+ return 0;
+}
+
+/*
* parse the mount options
* - this function has been shamelessly adapted from the ext3 fs which
* shamelessly adapted it from the msdos fs
@@ -427,7 +469,6 @@ static struct dentry *afs_mount(struct file_system_type *fs_type,
deactivate_locked_super(sb);
goto error;
}
- save_mount_options(sb, new_opts);
sb->s_flags |= MS_ACTIVE;
} else {
_debug("reuse");