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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-07-24 16:51:18 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-07-24 16:51:18 -0700 |
| commit | 53a7ff8fb785839b87f950fd85433d9c662fac89 (patch) | |
| tree | 119840a23e5226d3f258e2309b4ef1d328535dd2 /fs/overlayfs/overlayfs.h | |
| parent | 4323418d62fefe48ee5019f2c744c918be06ec69 (diff) | |
| parent | 072a7852338af900c302490474939e089f4bd4c4 (diff) | |
| download | op-kernel-dev-53a7ff8fb785839b87f950fd85433d9c662fac89.zip op-kernel-dev-53a7ff8fb785839b87f950fd85433d9c662fac89.tar.gz | |
Merge branch 'bind_unbind' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into next
This brings in devm_device_add_group() and friends so that we can create
driver-specific device attributes as managed resources.
Diffstat (limited to 'fs/overlayfs/overlayfs.h')
| -rw-r--r-- | fs/overlayfs/overlayfs.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index caa36cb..0623cebe 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -24,6 +24,7 @@ enum ovl_path_type { #define OVL_XATTR_OPAQUE OVL_XATTR_PREFIX "opaque" #define OVL_XATTR_REDIRECT OVL_XATTR_PREFIX "redirect" #define OVL_XATTR_ORIGIN OVL_XATTR_PREFIX "origin" +#define OVL_XATTR_IMPURE OVL_XATTR_PREFIX "impure" /* * The tuple (fh,uuid) is a universal unique identifier for a copy up origin, @@ -203,10 +204,10 @@ struct dentry *ovl_dentry_real(struct dentry *dentry); struct ovl_dir_cache *ovl_dir_cache(struct dentry *dentry); void ovl_set_dir_cache(struct dentry *dentry, struct ovl_dir_cache *cache); bool ovl_dentry_is_opaque(struct dentry *dentry); +bool ovl_dentry_is_impure(struct dentry *dentry); bool ovl_dentry_is_whiteout(struct dentry *dentry); void ovl_dentry_set_opaque(struct dentry *dentry); bool ovl_redirect_dir(struct super_block *sb); -void ovl_clear_redirect_dir(struct super_block *sb); const char *ovl_dentry_get_redirect(struct dentry *dentry); void ovl_dentry_set_redirect(struct dentry *dentry, const char *redirect); void ovl_dentry_update(struct dentry *dentry, struct dentry *upperdentry); @@ -219,6 +220,17 @@ bool ovl_is_whiteout(struct dentry *dentry); struct file *ovl_path_open(struct path *path, int flags); int ovl_copy_up_start(struct dentry *dentry); void ovl_copy_up_end(struct dentry *dentry); +bool ovl_check_dir_xattr(struct dentry *dentry, const char *name); +int ovl_check_setxattr(struct dentry *dentry, struct dentry *upperdentry, + const char *name, const void *value, size_t size, + int xerr); +int ovl_set_impure(struct dentry *dentry, struct dentry *upperdentry); + +static inline bool ovl_is_impuredir(struct dentry *dentry) +{ + return ovl_check_dir_xattr(dentry, OVL_XATTR_IMPURE); +} + /* namei.c */ int ovl_path_next(int idx, struct dentry *dentry, struct path *path); @@ -263,7 +275,7 @@ static inline void ovl_copyattr(struct inode *from, struct inode *to) /* dir.c */ extern const struct inode_operations ovl_dir_inode_operations; -struct dentry *ovl_lookup_temp(struct dentry *workdir, struct dentry *dentry); +struct dentry *ovl_lookup_temp(struct dentry *workdir); struct cattr { dev_t rdev; umode_t mode; |
