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authorMiles Bader <miles@gnu.org>1995-04-25 02:51:17 +0000
committerMiles Bader <miles@gnu.org>1995-04-25 02:51:17 +0000
commite202b85e1e7d255597a7cb65a5b04f29dbf87dcd (patch)
tree9e9e454f0a2c1add0dc59d3b7000e6dc92875a07 /ext2fs
parent1019c012fe205438478f740dc327927d68899d88 (diff)
Formerly ext2fs.h.~33~
Diffstat (limited to 'ext2fs')
-rw-r--r--ext2fs/ext2fs.h38
1 files changed, 31 insertions, 7 deletions
diff --git a/ext2fs/ext2fs.h b/ext2fs/ext2fs.h
index 35f4a05c..fc2c5947 100644
--- a/ext2fs/ext2fs.h
+++ b/ext2fs/ext2fs.h
@@ -35,6 +35,8 @@
of paging requests, which may be helpful in catching bugs. */
/* #undef DONT_CACHE_MEMORY_OBJECTS */
+
+int printf (const char *fmt, ...);
/* ---------------------------------------------------------------- */
@@ -201,6 +203,7 @@ struct ext2_super_block *sblock;
/* True if sblock has been modified. */
int sblock_dirty;
+/* Where the super-block is located on disk (at min-block 1). */
#define SBLOCK_BLOCK 1
#define SBLOCK_OFFS (SBLOCK_BLOCK * EXT2_MIN_BLOCK_SIZE)
#define SBLOCK_SIZE (sizeof (struct ext2_super_block))
@@ -346,30 +349,47 @@ global_block_modified (daddr_t block)
spin_lock (&modified_global_blocks_lock);
was_clean = !set_bit(block, modified_global_blocks);
spin_unlock (&modified_global_blocks_lock);
+ if (was_clean)
+ printf ("Marked block %lu as modified\n", block);
return was_clean;
}
else
- return 0;
+ return 1;
}
/* This records a modification to a non-file block. */
extern inline void
-record_global_poke (void *bptr)
+record_global_poke (void *ptr)
{
- int boffs = trunc_block (bptr_offs (bptr));
+ int boffs = trunc_block (bptr_offs (ptr));
if (global_block_modified (boffs_block (boffs)))
+ {
+ printf ("Adding block %u to global_pokel (%p)\n", boffs_block (boffs), &global_pokel);
pokel_add (&global_pokel, boffs_ptr(boffs), block_size);
+ }
}
/* This syncs a modification to a non-file block. */
extern inline void
sync_global_ptr (void *bptr, int wait)
{
- int boffs = trunc_block (bptr_offs (bptr));
+ vm_offset_t boffs = trunc_block (bptr_offs (bptr));
global_block_modified (boffs_block (boffs));
- pager_sync_some (disk_pager->p,
- (vm_address_t)boffs_ptr (boffs), block_size,
- wait);
+ printf ("Syncing block %d\n", boffs_block (boffs));
+ pager_sync_some (disk_pager->p, trunc_page (boffs), vm_page_size, wait);
+}
+
+/* This records a modification to one of a file's indirect blocks. */
+extern inline void
+record_indir_poke (struct node *node, void *ptr)
+{
+ int boffs = trunc_block (bptr_offs (ptr));
+ if (global_block_modified (boffs_block (boffs)))
+ {
+ printf ("Adding block %u to indir pokel for inode %u (%p)\n", boffs_block
+ (boffs), node->dn->number, &node->dn->pokel);
+ pokel_add (&node->dn->pokel, boffs_ptr(boffs), block_size);
+ }
}
/* ---------------------------------------------------------------- */
@@ -377,6 +397,7 @@ sync_global_ptr (void *bptr, int wait)
extern inline void
sync_super_block ()
{
+ printf ("Syncing superblock\n");
sblock_dirty = 0; /* It doesn't matter if this gets stomped. */
sync_global_ptr (sblock, 1);
}
@@ -384,6 +405,7 @@ sync_super_block ()
extern inline void
sync_global_data ()
{
+ printf ("Syncing global data\n");
pokel_sync (&global_pokel, 1);
diskfs_set_hypermetadata (1, 0);
}
@@ -396,9 +418,11 @@ alloc_sync (struct node *np)
{
if (np)
{
+ printf ("Alloc sync inode %d\n", np->dn->number);
diskfs_node_update (np, 1);
pokel_sync (&np->dn->pokel, 1);
}
+else printf ("Alloc sync 0\n");
sync_global_data ();
}
}