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new helper: iterate_mounts()

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apply function to vfsmounts in set returned by collect_mounts(),
stop if it returns non-zero.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2010-01-30 22:51:25 -05:00
parent 462d60577a
commit 1f707137b5
3 changed files with 33 additions and 34 deletions
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include/linux/fs.h
+2 -1
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@@ -1794,7 +1794,8 @@ extern int may_umount(struct vfsmount *);
extern long do_mount(char *, char *, char *, unsigned long, void *);
extern struct vfsmount *collect_mounts(struct path *);
extern void drop_collected_mounts(struct vfsmount *);
extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,
struct vfsmount *);
extern int vfs_statfs(struct dentry *, struct kstatfs *);
extern int current_umask(void);