reiserfs: Safely acquire i_mutex from reiserfs_for_each_xattr

[safe/jmp/linux-2.6] / fs / nilfs2 / sufile.h

diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h
index e8e2627..0e99e5c 100644 (file)
--- a/fs/nilfs2/sufile.h
+++ b/fs/nilfs2/sufile.h
@@ -28,7 +28,6 @@
 #include <linux/nilfs2_fs.h>
 #include "mdt.h"
 
-#define NILFS_SUFILE_GFP       NILFS_MDT_GFP
 
 static inline unsigned long nilfs_sufile_get_nsegments(struct inode *sufile)
 {
@@ -43,7 +42,7 @@ void nilfs_sufile_put_segment_usage(struct inode *, __u64,
                                    struct buffer_head *);
 int nilfs_sufile_get_stat(struct inode *, struct nilfs_sustat *);
 int nilfs_sufile_get_ncleansegs(struct inode *, unsigned long *);
-ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, struct nilfs_suinfo *,
+ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, void *, unsigned,
                                size_t);
 
 int nilfs_sufile_updatev(struct inode *, __u64 *, size_t, int, size_t *,
@@ -54,36 +53,16 @@ int nilfs_sufile_update(struct inode *, __u64, int,
                        void (*dofunc)(struct inode *, __u64,
                                       struct buffer_head *,
                                       struct buffer_head *));
-void nilfs_sufile_do_cancel_free(struct inode *, __u64, struct buffer_head *,
-                                struct buffer_head *);
 void nilfs_sufile_do_scrap(struct inode *, __u64, struct buffer_head *,
                           struct buffer_head *);
 void nilfs_sufile_do_free(struct inode *, __u64, struct buffer_head *,
                          struct buffer_head *);
+void nilfs_sufile_do_cancel_free(struct inode *, __u64, struct buffer_head *,
+                                struct buffer_head *);
 void nilfs_sufile_do_set_error(struct inode *, __u64, struct buffer_head *,
                               struct buffer_head *);
 
 /**
- * nilfs_sufile_cancel_free -
- * @sufile: inode of segment usage file
- * @segnum: segment number
- *
- * Description:
- *
- * Return Value: On success, 0 is returned. On error, one of the following
- * negative error codes is returned.
- *
- * %-EIO - I/O error.
- *
- * %-ENOMEM - Insufficient amount of memory available.
- */
-static inline int nilfs_sufile_cancel_free(struct inode *sufile, __u64 segnum)
-{
-       return nilfs_sufile_update(sufile, segnum, 0,
-                                  nilfs_sufile_do_cancel_free);
-}
-
-/**
  * nilfs_sufile_scrap - make a segment garbage
  * @sufile: inode of segment usage file
  * @segnum: segment number to be freed
@@ -104,6 +83,38 @@ static inline int nilfs_sufile_free(struct inode *sufile, __u64 segnum)
 }
 
 /**
+ * nilfs_sufile_freev - free segments
+ * @sufile: inode of segment usage file
+ * @segnumv: array of segment numbers
+ * @nsegs: size of @segnumv array
+ * @ndone: place to store the number of freed segments
+ */
+static inline int nilfs_sufile_freev(struct inode *sufile, __u64 *segnumv,
+                                    size_t nsegs, size_t *ndone)
+{
+       return nilfs_sufile_updatev(sufile, segnumv, nsegs, 0, ndone,
+                                   nilfs_sufile_do_free);
+}
+
+/**
+ * nilfs_sufile_cancel_freev - reallocate freeing segments
+ * @sufile: inode of segment usage file
+ * @segnumv: array of segment numbers
+ * @nsegs: size of @segnumv array
+ * @ndone: place to store the number of cancelled segments
+ *
+ * Return Value: On success, 0 is returned. On error, a negative error codes
+ * is returned.
+ */
+static inline int nilfs_sufile_cancel_freev(struct inode *sufile,
+                                           __u64 *segnumv, size_t nsegs,
+                                           size_t *ndone)
+{
+       return nilfs_sufile_updatev(sufile, segnumv, nsegs, 0, ndone,
+                                   nilfs_sufile_do_cancel_free);
+}
+
+/**
  * nilfs_sufile_set_error - mark a segment as erroneous
  * @sufile: inode of segment usage file
  * @segnum: segment number