From: Fred Isaman <iisaman@xxxxxxxxxxxxxx>
Signed-off-by: Fred Isaman <iisaman@xxxxxxxxxxxxxx>
Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
---
fs/nfs/blocklayout/extents.c | 30 ++++++++++++++++++++++++++++++
1 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/fs/nfs/blocklayout/extents.c b/fs/nfs/blocklayout/extents.c
index a05ee2a..98452ca 100644
--- a/fs/nfs/blocklayout/extents.c
+++ b/fs/nfs/blocklayout/extents.c
@@ -349,6 +349,31 @@ int mark_written_sectors(struct pnfs_inval_markings *marks,
return status;
}
+static void print_short_extent(struct pnfs_block_short_extent *be)
+{
+ dprintk("PRINT SHORT EXTENT extent %p\n", be);
+ if (be) {
+ dprintk(" be_f_offset %llu\n", (u64)be->bse_f_offset);
+ dprintk(" be_length %llu\n", (u64)be->bse_length);
+ }
+}
+
+void print_clist(struct list_head *list, unsigned int count)
+{
+ struct pnfs_block_short_extent *be;
+ unsigned int i = 0;
+
+ dprintk("****************\n");
+ dprintk("Extent list looks like:\n");
+ list_for_each_entry(be, list, bse_node) {
+ i++;
+ print_short_extent(be);
+ }
+ if (i != count)
+ dprintk("\n\nExpected %u entries\n\n\n", count);
+ dprintk("****************\n");
+}
+
/* Note: In theory, we should do more checking that devid's match between
* old and new, but if they don't, the lists are too corrupt to salvage anyway.
*/
@@ -360,6 +385,9 @@ static void add_to_commitlist(struct pnfs_block_layout *bl,
struct pnfs_block_short_extent *old, *save;
sector_t end = new->bse_f_offset + new->bse_length;
+ dprintk("%s enter\n", __func__);
+ print_short_extent(new);
+ print_clist(clist, bl->bl_count);
bl->bl_count++;
/* Scan for proper place to insert, extending new to the left
* as much as possible.
@@ -409,6 +437,8 @@ static void add_to_commitlist(struct pnfs_block_layout *bl,
kfree(old);
}
}
+ dprintk("%s: after merging\n", __func__);
+ print_clist(clist, bl->bl_count);
}
/* Note the range described by offset, length is guaranteed to be contained
--
1.7.4.1
--
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