#include "endian.h"
#include "ocfs2_lockid.h"
-struct ocfs2_extent_map {
- u32 em_clusters;
- struct rb_root em_extents;
-};
-
/* Most user visible OCFS2 inodes will have very few pieces of
* metadata, but larger files (including bitmaps, etc) must be taken
* into account when designing an access scheme. We allow a small
typeof(__di) ____di = (__di); \
ocfs2_error((__sb), \
"Dinode # %llu has bad signature %.*s", \
- (unsigned long long)(____di)->i_blkno, 7, \
+ (unsigned long long)le64_to_cpu((____di)->i_blkno), 7, \
(____di)->i_signature); \
-} while (0);
+} while (0)
#define OCFS2_IS_VALID_EXTENT_BLOCK(ptr) \
(!strcmp((ptr)->h_signature, OCFS2_EXTENT_BLOCK_SIGNATURE))
typeof(__eb) ____eb = (__eb); \
ocfs2_error((__sb), \
"Extent Block # %llu has bad signature %.*s", \
- (unsigned long long)(____eb)->h_blkno, 7, \
+ (unsigned long long)le64_to_cpu((____eb)->h_blkno), 7, \
(____eb)->h_signature); \
-} while (0);
+} while (0)
#define OCFS2_IS_VALID_GROUP_DESC(ptr) \
(!strcmp((ptr)->bg_signature, OCFS2_GROUP_DESC_SIGNATURE))
typeof(__gd) ____gd = (__gd); \
ocfs2_error((__sb), \
"Group Descriptor # %llu has bad signature %.*s", \
- (unsigned long long)(____gd)->bg_blkno, 7, \
+ (unsigned long long)le64_to_cpu((____gd)->bg_blkno), 7, \
(____gd)->bg_signature); \
-} while (0);
+} while (0)
static inline unsigned long ino_from_blkno(struct super_block *sb,
u64 blkno)
return (unsigned long)((bytes + 511) >> 9);
}
+static inline unsigned int ocfs2_page_index_to_clusters(struct super_block *sb,
+ unsigned long pg_index)
+{
+ u32 clusters = pg_index;
+ unsigned int cbits = OCFS2_SB(sb)->s_clustersize_bits;
+
+ if (unlikely(PAGE_CACHE_SHIFT > cbits))
+ clusters = pg_index << (PAGE_CACHE_SHIFT - cbits);
+ else if (PAGE_CACHE_SHIFT < cbits)
+ clusters = pg_index >> (cbits - PAGE_CACHE_SHIFT);
+
+ return clusters;
+}
+
+/*
+ * Find the 1st page index which covers the given clusters.
+ */
+static inline unsigned long ocfs2_align_clusters_to_page_index(struct super_block *sb,
+ u32 clusters)
+{
+ unsigned int cbits = OCFS2_SB(sb)->s_clustersize_bits;
+ unsigned long index = clusters;
+
+ if (PAGE_CACHE_SHIFT > cbits) {
+ index = clusters >> (PAGE_CACHE_SHIFT - cbits);
+ } else if (PAGE_CACHE_SHIFT < cbits) {
+ index = clusters << (cbits - PAGE_CACHE_SHIFT);
+ }
+
+ return index;
+}
+
+static inline unsigned int ocfs2_pages_per_cluster(struct super_block *sb)
+{
+ unsigned int cbits = OCFS2_SB(sb)->s_clustersize_bits;
+ unsigned int pages_per_cluster = 1;
+
+ if (PAGE_CACHE_SHIFT < cbits)
+ pages_per_cluster = 1 << (cbits - PAGE_CACHE_SHIFT);
+
+ return pages_per_cluster;
+}
+
#define ocfs2_set_bit ext2_set_bit
#define ocfs2_clear_bit ext2_clear_bit
#define ocfs2_test_bit ext2_test_bit