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Cleanup vn_rename() and vn_remove()

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zfsonlinux/spl#bcb15891ab394e11615eee08bba1fd85ac32e158 implemented
Linux 3.6+ support by adding duplicate vn_rename and vn_remove
functions. The new ones were cleaner, but the duplicate functions made
the codebase less maintainable. This adds some compatibility shims that
allow us to retire the older vn_rename and vn_remove in favor of the new
ones on old kernels. The result is a net 143 line reduction in lines of
code and a cleaner codebase.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #370
This commit is contained in:
Richard Yao
2014-06-29 01:00:02 -04:00
committed by Brian Behlendorf
parent 2fc44f66ec
commit ec18fe3ce8
5 changed files with 129 additions and 305 deletions
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include/linux/file_compat.h
-18
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@@ -91,23 +91,5 @@ spl_filp_fallocate(struct file *fp, int mode, loff_t offset, loff_t len)
#define spl_inode_unlock(ip) (up(&(ip)->i_sem))
#endif /* HAVE_INODE_I_MUTEX */
#ifdef HAVE_KERN_PATH_PARENT_HEADER
# ifndef HAVE_KERN_PATH_PARENT_SYMBOL
typedef int (*kern_path_parent_t)(const char *, struct nameidata *);
extern kern_path_parent_t kern_path_parent_fn;
# define spl_kern_path_parent(path, nd) kern_path_parent_fn(path, nd)
# else
# define spl_kern_path_parent(path, nd) kern_path_parent(path, nd)
# endif /* HAVE_KERN_PATH_PARENT_SYMBOL */
#else
# define spl_kern_path_parent(path, nd) path_lookup(path, LOOKUP_PARENT, nd)
#endif /* HAVE_KERN_PATH_PARENT_HEADER */
#ifdef HAVE_KERN_PATH_LOCKED
typedef struct dentry * (*kern_path_locked_t)(const char *, struct path *);
extern kern_path_locked_t kern_path_locked_fn;
# define spl_kern_path_locked(name, path) kern_path_locked_fn(name, path)
#endif /* HAVE_KERN_PATH_LOCKED */
#endif /* SPL_FILE_COMPAT_H */