[PATCH v2 2/7] libfs: wrap simple_pin_fs/simple_release_fs arguments in a struct
From: Emanuele Giuseppe Esposito <hidden>
Date: 2020-04-21 13:51:56
Also in:
dri-devel, linux-fsdevel, linux-scsi, linux-security-module, lkml
Subsystem:
apparmor security module, char and misc drivers, configfs, driver core, kobjects, debugfs and sysfs, drm drivers, drm drivers and misc gpu patches, exec & binfmt api, elf, filesystems (vfs and infrastructure), scsi subsystem, security subsystem, the rest, tracing · Maintainers:
John Johansen, Arnd Bergmann, Greg Kroah-Hartman, Andreas Hindborg, "Rafael J. Wysocki", Danilo Krummrich, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Kees Cook, Alexander Viro, Christian Brauner, "James E.J. Bottomley", "Martin K. Petersen", Paul Moore, James Morris, "Serge E. Hallyn", Linus Torvalds, Steven Rostedt, Masami Hiramatsu
Simplify passing the count and mount to simple_pin_fs and simple_release_fs by wrapping them in the simple_fs struct, in preparation for adding more high level operations to fs/libfs.c There is no functional change intended. Signed-off-by: Emanuele Giuseppe Esposito <redacted> --- drivers/gpu/drm/drm_drv.c | 11 ++++---- drivers/misc/cxl/api.c | 13 +++++----- drivers/scsi/cxlflash/ocxl_hw.c | 14 +++++----- fs/binfmt_misc.c | 9 +++---- fs/configfs/mount.c | 10 +++----- fs/debugfs/inode.c | 22 ++++++++-------- fs/libfs.c | 45 +++++++++++++++++++++++++-------- fs/tracefs/inode.c | 18 ++++++------- include/linux/fs.h | 10 ++++++-- security/apparmor/apparmorfs.c | 25 +++++++++--------- security/inode.c | 11 ++++---- 11 files changed, 103 insertions(+), 85 deletions(-)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 7b1a628d1f6e..e29424d64874 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c@@ -514,8 +514,7 @@ EXPORT_SYMBOL(drm_dev_unplug); * iput(), but this way you'd end up with a new vfsmount for each inode. */ -static int drm_fs_cnt; -static struct vfsmount *drm_fs_mnt; +static struct simple_fs drm_fs; static int drm_fs_init_fs_context(struct fs_context *fc) {
@@ -534,15 +533,15 @@ static struct inode *drm_fs_inode_new(void) struct inode *inode; int r; - r = simple_pin_fs(&drm_fs_type, &drm_fs_mnt, &drm_fs_cnt); + r = simple_pin_fs(&drm_fs, &drm_fs_type); if (r < 0) { DRM_ERROR("Cannot mount pseudo fs: %d\n", r); return ERR_PTR(r); } - inode = alloc_anon_inode(drm_fs_mnt->mnt_sb); + inode = alloc_anon_inode(drm_fs.mount->mnt_sb); if (IS_ERR(inode)) - simple_release_fs(&drm_fs_mnt, &drm_fs_cnt); + simple_release_fs(&drm_fs); return inode; }
@@ -551,7 +550,7 @@ static void drm_fs_inode_free(struct inode *inode) { if (inode) { iput(inode); - simple_release_fs(&drm_fs_mnt, &drm_fs_cnt); + simple_release_fs(&drm_fs); } }
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c
index b493de962153..67e4808bce49 100644
--- a/drivers/misc/cxl/api.c
+++ b/drivers/misc/cxl/api.c@@ -31,8 +31,7 @@ #define CXL_PSEUDO_FS_MAGIC 0x1697697f -static int cxl_fs_cnt; -static struct vfsmount *cxl_vfs_mount; +static struct simple_fs cxl_fs; static int cxl_fs_init_fs_context(struct fs_context *fc) {
@@ -50,7 +49,7 @@ static struct file_system_type cxl_fs_type = { void cxl_release_mapping(struct cxl_context *ctx) { if (ctx->kernelapi && ctx->mapping) - simple_release_fs(&cxl_vfs_mount, &cxl_fs_cnt); + simple_release_fs(&cxl_fs); } static struct file *cxl_getfile(const char *name,
@@ -66,20 +65,20 @@ static struct file *cxl_getfile(const char *name, if (fops->owner && !try_module_get(fops->owner)) return ERR_PTR(-ENOENT); - rc = simple_pin_fs(&cxl_fs_type, &cxl_vfs_mount, &cxl_fs_cnt); + rc = simple_pin_fs(&cxl_fs, &cxl_fs_type); if (rc < 0) { pr_err("Cannot mount cxl pseudo filesystem: %d\n", rc); file = ERR_PTR(rc); goto err_module; } - inode = alloc_anon_inode(cxl_vfs_mount->mnt_sb); + inode = alloc_anon_inode(cxl_fs.mount->mnt_sb); if (IS_ERR(inode)) { file = ERR_CAST(inode); goto err_fs; } - file = alloc_file_pseudo(inode, cxl_vfs_mount, name, + file = alloc_file_pseudo(inode, cxl_fs.mount, name, flags & (O_ACCMODE | O_NONBLOCK), fops); if (IS_ERR(file)) goto err_inode;
@@ -91,7 +90,7 @@ static struct file *cxl_getfile(const char *name, err_inode: iput(inode); err_fs: - simple_release_fs(&cxl_vfs_mount, &cxl_fs_cnt); + simple_release_fs(&cxl_fs); err_module: module_put(fops->owner); return file;
diff --git a/drivers/scsi/cxlflash/ocxl_hw.c b/drivers/scsi/cxlflash/ocxl_hw.c
index 7018cd802569..7fa98dd4fa28 100644
--- a/drivers/scsi/cxlflash/ocxl_hw.c
+++ b/drivers/scsi/cxlflash/ocxl_hw.c@@ -29,8 +29,7 @@ #define OCXLFLASH_FS_MAGIC 0x1697698f -static int ocxlflash_fs_cnt; -static struct vfsmount *ocxlflash_vfs_mount; +static struct simple_fs ocxlflash_fs; static int ocxlflash_fs_init_fs_context(struct fs_context *fc) {
@@ -51,7 +50,7 @@ static struct file_system_type ocxlflash_fs_type = { static void ocxlflash_release_mapping(struct ocxlflash_context *ctx) { if (ctx->mapping) - simple_release_fs(&ocxlflash_vfs_mount, &ocxlflash_fs_cnt); + simple_release_fs(&ocxlflash_fs); ctx->mapping = NULL; }
@@ -79,15 +78,14 @@ static struct file *ocxlflash_getfile(struct device *dev, const char *name, goto err1; } - rc = simple_pin_fs(&ocxlflash_fs_type, &ocxlflash_vfs_mount, - &ocxlflash_fs_cnt); + rc = simple_pin_fs(&ocxlflash_fs, &ocxlflash_fs_type); if (unlikely(rc < 0)) { dev_err(dev, "%s: Cannot mount ocxlflash pseudofs rc=%d\n", __func__, rc); goto err2; } - inode = alloc_anon_inode(ocxlflash_vfs_mount->mnt_sb); + inode = alloc_anon_inode(ocxlflash_fs.mount->mnt_sb); if (IS_ERR(inode)) { rc = PTR_ERR(inode); dev_err(dev, "%s: alloc_anon_inode failed rc=%d\n",
@@ -95,7 +93,7 @@ static struct file *ocxlflash_getfile(struct device *dev, const char *name, goto err3; } - file = alloc_file_pseudo(inode, ocxlflash_vfs_mount, name, + file = alloc_file_pseudo(inode, ocxlflash_fs.mount, name, flags & (O_ACCMODE | O_NONBLOCK), fops); if (IS_ERR(file)) { rc = PTR_ERR(file);
@@ -110,7 +108,7 @@ static struct file *ocxlflash_getfile(struct device *dev, const char *name, err4: iput(inode); err3: - simple_release_fs(&ocxlflash_vfs_mount, &ocxlflash_fs_cnt); + simple_release_fs(&ocxlflash_fs); err2: module_put(fops->owner); err1:
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index cdb45829354d..3cff446f222b 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c@@ -64,8 +64,7 @@ typedef struct { static DEFINE_RWLOCK(entries_lock); static struct file_system_type bm_fs_type; -static struct vfsmount *bm_mnt; -static int entry_count; +static struct simple_fs bm_fs; /* * Max length of the register string. Determined by:
@@ -623,7 +622,7 @@ static void kill_node(Node *e) drop_nlink(d_inode(dentry)); d_drop(dentry); dput(dentry); - simple_release_fs(&bm_mnt, &entry_count); + simple_release_fs(&bm_fs); } /* /<entry> */
@@ -718,7 +717,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer, if (!inode) goto out2; - err = simple_pin_fs(&bm_fs_type, &bm_mnt, &entry_count); + err = simple_pin_fs(&bm_fs, &bm_fs_type); if (err) { iput(inode); inode = NULL;
@@ -732,7 +731,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer, if (IS_ERR(f)) { err = PTR_ERR(f); pr_notice("register: failed to install interpreter file %s\n", e->interpreter); - simple_release_fs(&bm_mnt, &entry_count); + simple_release_fs(&bm_fs); iput(inode); inode = NULL; goto out2;
diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index 0c6e8cf61953..9fb2791e5eed 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c@@ -24,9 +24,8 @@ /* Random magic number */ #define CONFIGFS_MAGIC 0x62656570 -static struct vfsmount *configfs_mount = NULL; +static struct simple_fs configfs_fs; struct kmem_cache *configfs_dir_cachep; -static int configfs_mnt_count = 0; static void configfs_free_inode(struct inode *inode)
@@ -123,14 +122,13 @@ MODULE_ALIAS_FS("configfs"); struct dentry *configfs_pin_fs(void) { - int err = simple_pin_fs(&configfs_fs_type, &configfs_mount, - &configfs_mnt_count); - return err ? ERR_PTR(err) : configfs_mount->mnt_root; + int err = simple_pin_fs(&configfs_fs, &configfs_fs_type); + return err ? ERR_PTR(err) : configfs_fs.mount->mnt_root; } void configfs_release_fs(void) { - simple_release_fs(&configfs_mount, &configfs_mnt_count); + simple_release_fs(&configfs_fs); }
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index b7f2e971ecbc..5dbb74a23e7c 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c@@ -32,8 +32,7 @@ #define DEBUGFS_DEFAULT_MODE 0700 -static struct vfsmount *debugfs_mount; -static int debugfs_mount_count; +static struct simple_fs debugfs; static bool debugfs_registered; /*
@@ -297,7 +296,7 @@ struct dentry *debugfs_lookup(const char *name, struct dentry *parent) return NULL; if (!parent) - parent = debugfs_mount->mnt_root; + parent = debugfs.mount->mnt_root; dentry = lookup_positive_unlocked(name, parent, strlen(name)); if (IS_ERR(dentry))
@@ -316,8 +315,7 @@ static struct dentry *start_creating(const char *name, struct dentry *parent) if (IS_ERR(parent)) return parent; - error = simple_pin_fs(&debug_fs_type, &debugfs_mount, - &debugfs_mount_count); + error = simple_pin_fs(&debugfs, &debug_fs_type); if (error) { pr_err("Unable to pin filesystem for file '%s'\n", name); return ERR_PTR(error);
@@ -329,7 +327,7 @@ static struct dentry *start_creating(const char *name, struct dentry *parent) * have around. */ if (!parent) - parent = debugfs_mount->mnt_root; + parent = debugfs.mount->mnt_root; inode_lock(d_inode(parent)); if (unlikely(IS_DEADDIR(d_inode(parent))))
@@ -349,7 +347,7 @@ static struct dentry *start_creating(const char *name, struct dentry *parent) if (IS_ERR(dentry)) { inode_unlock(d_inode(parent)); - simple_release_fs(&debugfs_mount, &debugfs_mount_count); + simple_release_fs(&debugfs); } return dentry;
@@ -359,7 +357,7 @@ static struct dentry *failed_creating(struct dentry *dentry) { inode_unlock(d_inode(dentry->d_parent)); dput(dentry); - simple_release_fs(&debugfs_mount, &debugfs_mount_count); + simple_release_fs(&debugfs); return ERR_PTR(-ENOMEM); }
@@ -676,9 +674,9 @@ static void __debugfs_file_removed(struct dentry *dentry) static void remove_one(struct dentry *victim) { - if (d_is_reg(victim)) + if (d_is_reg(victim)) __debugfs_file_removed(victim); - simple_release_fs(&debugfs_mount, &debugfs_mount_count); + simple_release_fs(&debugfs); } /**
@@ -699,9 +697,9 @@ void debugfs_remove(struct dentry *dentry) if (IS_ERR_OR_NULL(dentry)) return; - simple_pin_fs(&debug_fs_type, &debugfs_mount, &debugfs_mount_count); + simple_pin_fs(&debugfs, &debug_fs_type); simple_recursive_removal(dentry, remove_one); - simple_release_fs(&debugfs_mount, &debugfs_mount_count); + simple_release_fs(&debugfs); } EXPORT_SYMBOL_GPL(debugfs_remove);
diff --git a/fs/libfs.c b/fs/libfs.c
index 3759fbacf522..54e07ae986ca 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c@@ -665,39 +665,64 @@ EXPORT_SYMBOL(simple_fill_super); static DEFINE_SPINLOCK(pin_fs_lock); -int simple_pin_fs(struct file_system_type *type, struct vfsmount **mount, int *count) +/** + * simple_pin_fs - generic function to pin (mount if needed, + * otherwise add a reference to the mount) a filesystem + * @fs: a pointer to a the simple_fs struct containing a struct vfs_mount + * pointer (that can be NULL) and a counter. + * @type: a pointer to the file system type used by vfs_kern_mount. + * + * This function sets fs->mount if NULL, by calling vfs_kern_mount + * on @type. + * It also takes care of incrementing the reference counter. + * + * This function will return 0 in case of success, and PTR_ERR(-ERROR) + * if vfs_kern_mount fails. + **/ +int simple_pin_fs(struct simple_fs *fs, struct file_system_type *type) { struct vfsmount *mnt = NULL; spin_lock(&pin_fs_lock); - if (unlikely(!*mount)) { + if (unlikely(!fs->mount)) { spin_unlock(&pin_fs_lock); mnt = vfs_kern_mount(type, SB_KERNMOUNT, type->name, NULL); if (IS_ERR(mnt)) return PTR_ERR(mnt); spin_lock(&pin_fs_lock); - if (!*mount) - *mount = mnt; + if (!fs->mount) + fs->mount = mnt; } - mntget(*mount); - ++*count; + mntget(fs->mount); + ++fs->count; spin_unlock(&pin_fs_lock); mntput(mnt); return 0; } EXPORT_SYMBOL(simple_pin_fs); -void simple_release_fs(struct vfsmount **mount, int *count) +/** + * simple_release_fs - decrements the reference counter and unmounts the + * file system. + * @fs: a pointer to a struct simple_fs containing the reference counter + * and vfs_mount pointer + * + * This function decrements the refcount of the given file system and + * if 0 sets the mount pointer to NULL. + **/ +void simple_release_fs(struct simple_fs *fs) { struct vfsmount *mnt; spin_lock(&pin_fs_lock); - mnt = *mount; - if (!--*count) - *mount = NULL; + mnt = fs->mount; + if (!--fs->count) + fs->mount = NULL; spin_unlock(&pin_fs_lock); mntput(mnt); } EXPORT_SYMBOL(simple_release_fs); + + /** * simple_read_from_buffer - copy data from the buffer to user space * @to: the user space buffer to read to
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 0ee8c6dfb036..370eb38ff1ad 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c@@ -24,8 +24,7 @@ #define TRACEFS_DEFAULT_MODE 0700 -static struct vfsmount *tracefs_mount; -static int tracefs_mount_count; +static struct simple_fs tracefs; static bool tracefs_registered; static ssize_t default_read_file(struct file *file, char __user *buf,
@@ -316,8 +315,7 @@ static struct dentry *start_creating(const char *name, struct dentry *parent) pr_debug("tracefs: creating file '%s'\n",name); - error = simple_pin_fs(&trace_fs_type, &tracefs_mount, - &tracefs_mount_count); + error = simple_pin_fs(&tracefs, &trace_fs_type); if (error) return ERR_PTR(error);
@@ -327,7 +325,7 @@ static struct dentry *start_creating(const char *name, struct dentry *parent) * have around. */ if (!parent) - parent = tracefs_mount->mnt_root; + parent = tracefs.mount->mnt_root; inode_lock(parent->d_inode); if (unlikely(IS_DEADDIR(parent->d_inode)))
@@ -341,7 +339,7 @@ static struct dentry *start_creating(const char *name, struct dentry *parent) if (IS_ERR(dentry)) { inode_unlock(parent->d_inode); - simple_release_fs(&tracefs_mount, &tracefs_mount_count); + simple_release_fs(&tracefs); } return dentry;
@@ -351,7 +349,7 @@ static struct dentry *failed_creating(struct dentry *dentry) { inode_unlock(dentry->d_parent->d_inode); dput(dentry); - simple_release_fs(&tracefs_mount, &tracefs_mount_count); + simple_release_fs(&tracefs); return NULL; }
@@ -504,7 +502,7 @@ __init struct dentry *tracefs_create_instance_dir(const char *name, static void remove_one(struct dentry *victim) { - simple_release_fs(&tracefs_mount, &tracefs_mount_count); + simple_release_fs(&tracefs); } /**
@@ -520,9 +518,9 @@ void tracefs_remove(struct dentry *dentry) if (IS_ERR_OR_NULL(dentry)) return; - simple_pin_fs(&trace_fs_type, &tracefs_mount, &tracefs_mount_count); + simple_pin_fs(&tracefs, &trace_fs_type); simple_recursive_removal(dentry, remove_one); - simple_release_fs(&tracefs_mount, &tracefs_mount_count); + simple_release_fs(&tracefs); } /**
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 4f6f59b4f22a..a3691c132b3a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h@@ -3363,8 +3363,14 @@ struct tree_descr { const char *name; const struct file_operations *ops; int mod struct dentry *d_alloc_name(struct dentry *, const char *); extern int simple_fill_super(struct super_block *, unsigned long, const struct tree_descr *); -extern int simple_pin_fs(struct file_system_type *, struct vfsmount **mount, int *count); -extern void simple_release_fs(struct vfsmount **mount, int *count); + +struct simple_fs { + struct vfsmount *mount; + int count; +}; + +extern int simple_pin_fs(struct simple_fs *, struct file_system_type *); +extern void simple_release_fs(struct simple_fs *); extern ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos, const void *from, size_t available);
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index 36f848734902..00f0158fb1e1 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c@@ -140,8 +140,7 @@ static int mangle_name(const char *name, char *target) */ #define AAFS_NAME "apparmorfs" -static struct vfsmount *aafs_mnt; -static int aafs_count; +static struct simple_fs aafs; static int aafs_show_path(struct seq_file *seq, struct dentry *dentry)
@@ -273,7 +272,7 @@ static struct dentry *aafs_create(const char *name, umode_t mode, if (!(mode & S_IFMT)) mode = (mode & S_IALLUGO) | S_IFREG; - error = simple_pin_fs(&aafs_ops, &aafs_mnt, &aafs_count); + error = simple_pin_fs(&aafs, &aafs_ops); if (error) return ERR_PTR(error);
@@ -303,7 +302,7 @@ static struct dentry *aafs_create(const char *name, umode_t mode, fail_lock: inode_unlock(dir); - simple_release_fs(&aafs_mnt, &aafs_count); + simple_release_fs(&aafs); return ERR_PTR(error); }
@@ -395,7 +394,7 @@ static void aafs_remove(struct dentry *dentry) dput(dentry); } inode_unlock(dir); - simple_release_fs(&aafs_mnt, &aafs_count); + simple_release_fs(&aafs); }
@@ -1824,7 +1823,7 @@ static int ns_mkdir_op(struct inode *dir, struct dentry *dentry, umode_t mode) * for pin_fs */ inode_unlock(dir); - error = simple_pin_fs(&aafs_ops, &aafs_mnt, &aafs_count); + error = simple_pin_fs(&aafs, &aafs_ops); mutex_lock_nested(&parent->lock, parent->level); inode_lock_nested(dir, I_MUTEX_PARENT); if (error)
@@ -1845,7 +1844,7 @@ static int ns_mkdir_op(struct inode *dir, struct dentry *dentry, umode_t mode) aa_put_ns(ns); /* list ref remains */ out_pin: if (error) - simple_release_fs(&aafs_mnt, &aafs_count); + simple_release_fs(&aafs); out: mutex_unlock(&parent->lock); aa_put_ns(parent);
@@ -2580,7 +2579,7 @@ static const char *policy_get_link(struct dentry *dentry, return ERR_PTR(-ECHILD); ns = aa_get_current_ns(); - path.mnt = mntget(aafs_mnt); + path.mnt = mntget(aafs.mount); path.dentry = dget(ns_dir(ns)); error = nd_jump_link(&path); aa_put_ns(ns);
@@ -2631,10 +2630,10 @@ static int __init aa_create_aafs(void) } /* setup apparmorfs used to virtualize policy/ */ - aafs_mnt = kern_mount(&aafs_ops); - if (IS_ERR(aafs_mnt)) + aafs.mount = kern_mount(&aafs_ops); + if (IS_ERR(aafs.mount)) panic("can't set apparmorfs up\n"); - aafs_mnt->mnt_sb->s_flags &= ~SB_NOUSER; + aafs.mount->mnt_sb->s_flags &= ~SB_NOUSER; /* Populate fs tree. */ error = entry_create_dir(&aa_sfs_entry, NULL);
@@ -2667,8 +2666,8 @@ static int __init aa_create_aafs(void) /* policy tree referenced by magic policy symlink */ mutex_lock_nested(&root_ns->lock, root_ns->level); - error = __aafs_ns_mkdir(root_ns, aafs_mnt->mnt_root, ".policy", - aafs_mnt->mnt_root); + error = __aafs_ns_mkdir(root_ns, aafs.mount->mnt_root, ".policy", + aafs.mount->mnt_root); mutex_unlock(&root_ns->lock); if (error) goto error;
diff --git a/security/inode.c b/security/inode.c
index 6c326939750d..8a1bee35470a 100644
--- a/security/inode.c
+++ b/security/inode.c@@ -22,8 +22,7 @@ #include <linux/lsm_hooks.h> #include <linux/magic.h> -static struct vfsmount *mount; -static int mount_count; +static struct simple_fs securityfs; static void securityfs_free_inode(struct inode *inode) {
@@ -118,12 +117,12 @@ static struct dentry *securityfs_create_dentry(const char *name, umode_t mode, pr_debug("securityfs: creating file '%s'\n",name); - error = simple_pin_fs(&fs_type, &mount, &mount_count); + error = simple_pin_fs(&securityfs, &fs_type); if (error) return ERR_PTR(error); if (!parent) - parent = mount->mnt_root; + parent = securityfs.mount->mnt_root; dir = d_inode(parent);
@@ -168,7 +167,7 @@ static struct dentry *securityfs_create_dentry(const char *name, umode_t mode, dentry = ERR_PTR(error); out: inode_unlock(dir); - simple_release_fs(&mount, &mount_count); + simple_release_fs(&securityfs); return dentry; }
@@ -309,7 +308,7 @@ void securityfs_remove(struct dentry *dentry) dput(dentry); } inode_unlock(dir); - simple_release_fs(&mount, &mount_count); + simple_release_fs(&securityfs); } EXPORT_SYMBOL_GPL(securityfs_remove);
--
2.25.2