#ifndef _GNU_SOURCE
#define _GNU_SOURCE 1 /* get strnlen() */
#endif
-#include <sys/types.h>
-#include <inttypes.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <time.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <setjmp.h>
-#include <errno.h>
-#include <getopt.h>
-#include <limits.h>
-#include <stddef.h>
-#include <assert.h>
-#include <signal.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-#include <sys/resource.h>
-#include <sys/param.h>
-#include <sys/mount.h>
-#include <sys/ioctl.h>
-#include <malloc.h>
-#include <termios.h>
-#include <mntent.h>
-#include <dirent.h>
-
-#include "fsck.h"
-
-#include "ext2fs/ext2_fs.h"
-#include "ext2fs/ext2fs.h"
-#include "blkid/blkid.h"
-#include "ext2fs/ext2_ext_attr.h"
-#include "uuid/uuid.h"
+
+#include "e2fsck.h" /*Put all of our defines here to clean things up*/
#ifdef __GNUC__
#define _INLINE_ __inline__
#define EXT2FS_ATTR(x)
#endif
-/*
- * The last ext2fs revision level that this version of e2fsck is able to
- * support
- */
-#define E2FSCK_CURRENT_REV 1
-
-/*
- * The directory information structure; stores directory information
- * collected in earlier passes, to avoid disk i/o in fetching the
- * directory information.
- */
-struct dir_info {
- ext2_ino_t ino; /* Inode number */
- ext2_ino_t dotdot; /* Parent according to '..' */
- ext2_ino_t parent; /* Parent according to treewalk */
-};
-
-
-/*
- * The indexed directory information structure; stores information for
- * directories which contain a hash tree index.
- */
-struct dx_dir_info {
- ext2_ino_t ino; /* Inode number */
- int numblocks; /* number of blocks */
- int hashversion;
- short depth; /* depth of tree */
- struct dx_dirblock_info *dx_block; /* Array of size numblocks */
-};
-
-#define DX_DIRBLOCK_ROOT 1
-#define DX_DIRBLOCK_LEAF 2
-#define DX_DIRBLOCK_NODE 3
-#define DX_DIRBLOCK_CORRUPT 4
-#define DX_DIRBLOCK_CLEARED 8
-
-struct dx_dirblock_info {
- int type;
- blk_t phys;
- int flags;
- blk_t parent;
- ext2_dirhash_t min_hash;
- ext2_dirhash_t max_hash;
- ext2_dirhash_t node_min_hash;
- ext2_dirhash_t node_max_hash;
-};
-
-#define DX_FLAG_REFERENCED 1
-#define DX_FLAG_DUP_REF 2
-#define DX_FLAG_FIRST 4
-#define DX_FLAG_LAST 8
-
-#ifdef RESOURCE_TRACK
-/*
- * This structure is used for keeping track of how much resources have
- * been used for a particular pass of e2fsck.
- */
-struct resource_track {
- struct timeval time_start;
- struct timeval user_start;
- struct timeval system_start;
- void *brk_start;
-};
-#endif
-
-/*
- * E2fsck options
- */
-#define E2F_OPT_READONLY 0x0001
-#define E2F_OPT_PREEN 0x0002
-#define E2F_OPT_YES 0x0004
-#define E2F_OPT_NO 0x0008
-#define E2F_OPT_TIME 0x0010
-#define E2F_OPT_TIME2 0x0020
-#define E2F_OPT_CHECKBLOCKS 0x0040
-#define E2F_OPT_DEBUG 0x0080
-#define E2F_OPT_FORCE 0x0100
-#define E2F_OPT_WRITECHECK 0x0200
-#define E2F_OPT_COMPRESS_DIRS 0x0400
-
-/*
- * E2fsck flags
- */
-#define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
-#define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
-#define E2F_FLAG_SIGNAL_MASK 0x0003
-#define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
-
-#define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
-
-#define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
-#define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
-#define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
-#define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
- * specified by the user */
-#define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */
-#define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */
-
-/*
- * Defines for indicating the e2fsck pass number
- */
-#define E2F_PASS_1 1
-#define E2F_PASS_2 2
-#define E2F_PASS_3 3
-#define E2F_PASS_4 4
-#define E2F_PASS_5 5
-#define E2F_PASS_1B 6
-
-
-/*
- * This is the global e2fsck structure.
- */
-typedef struct e2fsck_struct *e2fsck_t;
-
-/*
- * Define the extended attribute refcount structure
- */
-typedef struct ea_refcount *ext2_refcount_t;
-
-struct e2fsck_struct {
- ext2_filsys fs;
- const char *program_name;
- char *filesystem_name;
- char *device_name;
- char *io_options;
- int flags; /* E2fsck internal flags */
- int options;
- blk_t use_superblock; /* sb requested by user */
- blk_t superblock; /* sb used to open fs */
- int blocksize; /* blocksize */
- blk_t num_blocks; /* Total number of blocks */
- int mount_flags;
- blkid_cache blkid; /* blkid cache */
-
- jmp_buf abort_loc;
-
- unsigned long abort_code;
-
- int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
- unsigned long max);
-
- ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
- ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
- ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
- ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
- ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
- ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
-
- ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
- ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
- ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
-
- /*
- * Inode count arrays
- */
- ext2_icount_t inode_count;
- ext2_icount_t inode_link_info;
-
- ext2_refcount_t refcount;
- ext2_refcount_t refcount_extra;
-
- /*
- * Array of flags indicating whether an inode bitmap, block
- * bitmap, or inode table is invalid
- */
- int *invalid_inode_bitmap_flag;
- int *invalid_block_bitmap_flag;
- int *invalid_inode_table_flag;
- int invalid_bitmaps; /* There are invalid bitmaps/itable */
-
- /*
- * Block buffer
- */
- char *block_buf;
-
- /*
- * For pass1_check_directory and pass1_get_blocks
- */
- ext2_ino_t stashed_ino;
- struct ext2_inode *stashed_inode;
-
- /*
- * Location of the lost and found directory
- */
- ext2_ino_t lost_and_found;
- int bad_lost_and_found;
-
- /*
- * Directory information
- */
- int dir_info_count;
- int dir_info_size;
- struct dir_info *dir_info;
-
- /*
- * Indexed directory information
- */
- int dx_dir_info_count;
- int dx_dir_info_size;
- struct dx_dir_info *dx_dir_info;
-
- /*
- * Directories to hash
- */
- ext2_u32_list dirs_to_hash;
-
- /*
- * Tuning parameters
- */
- int process_inode_size;
- int inode_buffer_blocks;
-
- /*
- * ext3 journal support
- */
- io_channel journal_io;
- char *journal_name;
-
-#ifdef RESOURCE_TRACK
- /*
- * For timing purposes
- */
- struct resource_track global_rtrack;
-#endif
-
- /*
- * How we display the progress update (for unix)
- */
- int progress_fd;
- int progress_pos;
- int progress_last_percent;
- unsigned int progress_last_time;
- int interactive; /* Are we connected directly to a tty? */
- char start_meta[2], stop_meta[2];
-
- /* File counts */
- int fs_directory_count;
- int fs_regular_count;
- int fs_blockdev_count;
- int fs_chardev_count;
- int fs_links_count;
- int fs_symlinks_count;
- int fs_fast_symlinks_count;
- int fs_fifo_count;
- int fs_total_count;
- int fs_badblocks_count;
- int fs_sockets_count;
- int fs_ind_count;
- int fs_dind_count;
- int fs_tind_count;
- int fs_fragmented;
- int large_files;
- int fs_ext_attr_inodes;
- int fs_ext_attr_blocks;
-
- int ext_attr_ver;
-
- /*
- * For the use of callers of the e2fsck functions; not used by
- * e2fsck functions themselves.
- */
- void *priv_data;
-};
-
-/* Used by the region allocation code */
-typedef __u32 region_addr_t;
-typedef struct region_struct *region_t;
-
/*
* Procedure declarations
*/
static void e2fsck_clear_progbar(e2fsck_t ctx);
static int e2fsck_simple_progress(e2fsck_t ctx, const char *label,
float percent, unsigned int dpynum);
+
+
/*
* problem.h --- e2fsck problem error codes
*/
* Pull in the definition of the e2fsck context structure
*/
-
struct buffer_head {
char b_data[8192];
e2fsck_t b_ctx;
int b_err;
};
-struct inode {
- e2fsck_t i_ctx;
- ext2_ino_t i_ino;
- struct ext2_inode i_ext2;
-};
-
-struct kdev_s {
- e2fsck_t k_ctx;
- int k_dev;
-};
#define K_DEV_FS 1
#define K_DEV_JOURNAL 2
-typedef struct kdev_s *kdev_t;
-
#define lock_buffer(bh) do {} while(0)
#define unlock_buffer(bh) do {} while(0)
#define buffer_req(bh) 1
free(cache);
}
-/*
- * Now pull in the real linux/jfs.h definitions.
- */
-#include "ext2fs/kernel-jbd.h"
-
/*
* badblocks.c --- replace/append bad blocks to the bad block inode
*/
#define MNT_FL (MS_MGC_VAL | MS_RDONLY)
-
-#ifdef __CONFIG_JBD_DEBUG__E2FS /* Enabled by configure --enable-jfs-debug */
-static int bh_count = 0;
-#endif
-
/*
* Define USE_INODE_IO to use the inode_io.c / fileio.c codepaths.
* This creates a larger static binary, and a smaller binary using
if (!bh)
return NULL;
- jfs_debug(4, "getblk for block %lu (%d bytes)(total %d)\n",
- (unsigned long) blocknr, blocksize, ++bh_count);
-
bh->b_ctx = kdev->k_ctx;
if (kdev->k_dev == K_DEV_FS)
bh->b_io = kdev->k_ctx->fs->io;
for (; nr > 0; --nr) {
bh = *bhp++;
if (rw == READ && !bh->b_uptodate) {
- jfs_debug(3, "reading block %lu/%p\n",
- (unsigned long) bh->b_blocknr, (void *) bh);
retval = io_channel_read_blk(bh->b_io,
bh->b_blocknr,
1, bh->b_data);
}
bh->b_uptodate = 1;
} else if (rw == WRITE && bh->b_dirty) {
- jfs_debug(3, "writing block %lu/%p\n",
- (unsigned long) bh->b_blocknr, (void *) bh);
retval = io_channel_write_blk(bh->b_io,
bh->b_blocknr,
1, bh->b_data);
}
bh->b_dirty = 0;
bh->b_uptodate = 1;
- } else {
- jfs_debug(3, "no-op %s for block %lu\n",
- rw == READ ? "read" : "write",
- (unsigned long) bh->b_blocknr);
}
}
}
{
if (bh->b_dirty)
ll_rw_block(WRITE, 1, &bh);
- jfs_debug(3, "freeing block %lu/%p (total %d)\n",
- (unsigned long) bh->b_blocknr, (void *) bh, --bh_count);
ext2fs_free_mem(&bh);
}
return EXT2_ET_LOAD_EXT_JOURNAL;
}
- jfs_debug(1, "Using journal file %s\n", journal_name);
io_ptr = unix_io_manager;
}
-#if 0
- test_io_backing_manager = io_ptr;
- io_ptr = test_io_manager;
-#endif
#ifndef USE_INODE_IO
if (ext_journal)
#endif
*bhp = NULL;
- J_ASSERT (offset < journal->j_maxlen);
-
err = journal_bmap(journal, offset, &blocknr);
if (err) {
- printk (KERN_ERR "JBD: bad block at offset %u\n",
- offset);
+ printf ("JBD: bad block at offset %u\n", offset);
return err;
}
}
if (!buffer_uptodate(bh)) {
- printk (KERN_ERR "JBD: Failed to read block at offset %u\n",
- offset);
+ printf ("JBD: Failed to read block at offset %u\n", offset);
brelse(bh);
return -EIO;
}
*/
if (!sb->s_start) {
- jbd_debug(1, "No recovery required, last transaction %d\n",
- ntohl(sb->s_sequence));
journal->j_transaction_sequence = ntohl(sb->s_sequence) + 1;
return 0;
}
if (!err)
err = do_one_pass(journal, &info, PASS_REPLAY);
- jbd_debug(0, "JBD: recovery, exit status %d, "
- "recovered transactions %u to %u\n",
- err, info.start_transaction, info.end_transaction);
- jbd_debug(0, "JBD: Replayed %d and revoked %d/%d blocks\n",
- info.nr_replays, info.nr_revoke_hits, info.nr_revokes);
-
/* Restart the log at the next transaction ID, thus invalidating
* any existing commit records in the log. */
journal->j_transaction_sequence = ++info.end_transaction;
if (pass == PASS_SCAN)
info->start_transaction = first_commit_ID;
- jbd_debug(1, "Starting recovery pass %d\n", pass);
-
/*
* Now we walk through the log, transaction by transaction,
* making sure that each transaction has a commit block in the
if (tid_geq(next_commit_ID, info->end_transaction))
break;
- jbd_debug(2, "Scanning for sequence ID %u at %lu/%lu\n",
- next_commit_ID, next_log_block, journal->j_last);
-
/* Skip over each chunk of the transaction looking
* either the next descriptor block or the final commit
* record. */
- jbd_debug(3, "JBD: checking block %ld\n", next_log_block);
err = jread(&bh, journal, next_log_block);
if (err)
goto failed;
blocktype = ntohl(tmp->h_blocktype);
sequence = ntohl(tmp->h_sequence);
- jbd_debug(3, "Found magic %d, sequence %d\n",
- blocktype, sequence);
if (sequence != next_commit_ID) {
brelse(bh);
/* Recover what we can, but
* report failure at the end. */
success = err;
- printk (KERN_ERR
- "JBD: IO error %d recovering "
+ printf ("JBD: IO error %d recovering "
"block %ld in log\n",
err, io_block);
} else {
unsigned long blocknr;
- J_ASSERT(obh != NULL);
blocknr = ntohl(tag->t_blocknr);
/* If the block has been
blocknr,
journal->j_blocksize);
if (nbh == NULL) {
- printk(KERN_ERR
- "JBD: Out of memory "
+ printf ("JBD: Out of memory "
"during recovery.\n");
err = -ENOMEM;
brelse(bh);
htonl(JFS_MAGIC_NUMBER);
}
- BUFFER_TRACE(nbh, "marking dirty");
mark_buffer_uptodate(nbh, 1);
mark_buffer_dirty(nbh);
- BUFFER_TRACE(nbh, "marking uptodate");
++info->nr_replays;
/* ll_rw_block(WRITE, 1, &nbh); */
unlock_buffer(nbh);
continue;
default:
- jbd_debug(3, "Unrecognised magic %d, end of scan.\n",
- blocktype);
goto done;
}
}
/* It's really bad news if different passes end up at
* different places (but possible due to IO errors). */
if (info->end_transaction != next_commit_ID) {
- printk (KERN_ERR "JBD: recovery pass %d ended at "
+ printf ("JBD: recovery pass %d ended at "
"transaction %u, expected %u\n",
pass, next_commit_ID, info->end_transaction);
if (!success)
{
int shift, tmp;
- J_ASSERT (journal->j_revoke == NULL);
-
journal->j_revoke = kmem_cache_alloc(revoke_table_cache, GFP_KERNEL);
if (!journal->j_revoke)
return -ENOMEM;
/* Check that the hash_size is a power of two */
- J_ASSERT ((hash_size & (hash_size-1)) == 0);
-
journal->j_revoke->hash_size = hash_size;
shift = 0;
for (i=0; i<table->hash_size; i++) {
hash_list = &table->hash_table[i];
- J_ASSERT (list_empty(hash_list));
}
free(table->hash_table);
* util.c --- miscellaneous utilities
*/
-#ifdef HAVE_CONIO_H
-#undef HAVE_TERMIOS_H
-#include <conio.h>
-#define read_a_char() getch()
-#else
-#ifdef HAVE_TERMIOS_H
-#include <termios.h>
-#endif
-#endif
#if 0
void fatal_error(e2fsck_t ctx, const char *msg)
--- /dev/null
+#include <sys/types.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <time.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <setjmp.h>
+#include <errno.h>
+#include <getopt.h>
+#include <limits.h>
+#include <stddef.h>
+#include <assert.h>
+#include <signal.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <sys/resource.h>
+#include <sys/param.h>
+#include <sys/mount.h>
+#include <sys/ioctl.h>
+#include <malloc.h>
+#include <termios.h>
+#include <mntent.h>
+#include <dirent.h>
+#include "ext2fs/kernel-list.h"
+#include <sys/types.h>
+#include <linux/types.h>
+
+
+/*
+ * Now pull in the real linux/jfs.h definitions.
+ */
+#include "ext2fs/kernel-jbd.h"
+
+
+
+#include "fsck.h"
+
+#include "ext2fs/ext2_fs.h"
+#include "blkid/blkid.h"
+#include "ext2fs/ext2_ext_attr.h"
+#include "uuid/uuid.h"
+
+#ifdef HAVE_CONIO_H
+#undef HAVE_TERMIOS_H
+#include <conio.h>
+#define read_a_char() getch()
+#else
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+#endif
+#endif
+
+
+/*
+ * The last ext2fs revision level that this version of e2fsck is able to
+ * support
+ */
+#define E2FSCK_CURRENT_REV 1
+
+/* Used by the region allocation code */
+typedef __u32 region_addr_t;
+typedef struct region_struct *region_t;
+
+struct dx_dirblock_info {
+ int type;
+ blk_t phys;
+ int flags;
+ blk_t parent;
+ ext2_dirhash_t min_hash;
+ ext2_dirhash_t max_hash;
+ ext2_dirhash_t node_min_hash;
+ ext2_dirhash_t node_max_hash;
+};
+
+/*
+These defines are used in the type field of dx_dirblock_info
+*/
+
+#define DX_DIRBLOCK_ROOT 1
+#define DX_DIRBLOCK_LEAF 2
+#define DX_DIRBLOCK_NODE 3
+#define DX_DIRBLOCK_CORRUPT 4
+#define DX_DIRBLOCK_CLEARED 8
+
+
+/*
+The following defines are used in the 'flags' field of a dx_dirblock_info
+*/
+#define DX_FLAG_REFERENCED 1
+#define DX_FLAG_DUP_REF 2
+#define DX_FLAG_FIRST 4
+#define DX_FLAG_LAST 8
+
+#ifdef RESOURCE_TRACK
+/*
+ * This structure is used for keeping track of how much resources have
+ * been used for a particular pass of e2fsck.
+ */
+struct resource_track {
+ struct timeval time_start;
+ struct timeval user_start;
+ struct timeval system_start;
+ void *brk_start;
+};
+#endif
+
+/*
+ * E2fsck options
+ */
+#define E2F_OPT_READONLY 0x0001
+#define E2F_OPT_PREEN 0x0002
+#define E2F_OPT_YES 0x0004
+#define E2F_OPT_NO 0x0008
+#define E2F_OPT_TIME 0x0010
+#define E2F_OPT_TIME2 0x0020
+#define E2F_OPT_CHECKBLOCKS 0x0040
+#define E2F_OPT_DEBUG 0x0080
+#define E2F_OPT_FORCE 0x0100
+#define E2F_OPT_WRITECHECK 0x0200
+#define E2F_OPT_COMPRESS_DIRS 0x0400
+
+/*
+ * E2fsck flags
+ */
+#define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
+#define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
+#define E2F_FLAG_SIGNAL_MASK 0x0003
+#define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
+
+#define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
+
+#define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
+#define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
+#define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
+#define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
+ * specified by the user */
+#define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */
+#define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */
+
+/*
+ * Defines for indicating the e2fsck pass number
+ */
+#define E2F_PASS_1 1
+#define E2F_PASS_2 2
+#define E2F_PASS_3 3
+#define E2F_PASS_4 4
+#define E2F_PASS_5 5
+#define E2F_PASS_1B 6
+
+/*Don't know where these come from*/
+#define READ 0
+#define WRITE 1
+#define KERN_ERR ""
+#define KERN_DEBUG ""
+#define cpu_to_be32(n) htonl(n)
+#define be32_to_cpu(n) ntohl(n)
+
+
+/*
+ * The directory information structure; stores directory information
+ * collected in earlier passes, to avoid disk i/o in fetching the
+ * directory information.
+ */
+struct dir_info {
+ ext2_ino_t ino; /* Inode number */
+ ext2_ino_t dotdot; /* Parent according to '..' */
+ ext2_ino_t parent; /* Parent according to treewalk */
+};
+
+
+
+/*
+ * The indexed directory information structure; stores information for
+ * directories which contain a hash tree index.
+ */
+struct dx_dir_info {
+ ext2_ino_t ino; /* Inode number */
+ int numblocks; /* number of blocks */
+ int hashversion;
+ short depth; /* depth of tree */
+ struct dx_dirblock_info *dx_block; /* Array of size numblocks */
+};
+
+/*
+ * Define the extended attribute refcount structure
+ */
+typedef struct ea_refcount *ext2_refcount_t;
+
+struct e2fsck_struct {
+ ext2_filsys fs;
+ const char *program_name;
+ char *filesystem_name;
+ char *device_name;
+ char *io_options;
+ int flags; /* E2fsck internal flags */
+ int options;
+ blk_t use_superblock; /* sb requested by user */
+ blk_t superblock; /* sb used to open fs */
+ int blocksize; /* blocksize */
+ blk_t num_blocks; /* Total number of blocks */
+ int mount_flags;
+ blkid_cache blkid; /* blkid cache */
+
+ jmp_buf abort_loc;
+
+ unsigned long abort_code;
+
+ int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
+ unsigned long max);
+
+ ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
+ ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
+ ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
+ ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
+ ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
+ ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
+
+ ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
+ ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
+ ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
+
+ /*
+ * Inode count arrays
+ */
+ ext2_icount_t inode_count;
+ ext2_icount_t inode_link_info;
+
+ ext2_refcount_t refcount;
+ ext2_refcount_t refcount_extra;
+
+ /*
+ * Array of flags indicating whether an inode bitmap, block
+ * bitmap, or inode table is invalid
+ */
+ int *invalid_inode_bitmap_flag;
+ int *invalid_block_bitmap_flag;
+ int *invalid_inode_table_flag;
+ int invalid_bitmaps; /* There are invalid bitmaps/itable */
+
+ /*
+ * Block buffer
+ */
+ char *block_buf;
+
+ /*
+ * For pass1_check_directory and pass1_get_blocks
+ */
+ ext2_ino_t stashed_ino;
+ struct ext2_inode *stashed_inode;
+
+ /*
+ * Location of the lost and found directory
+ */
+ ext2_ino_t lost_and_found;
+ int bad_lost_and_found;
+
+ /*
+ * Directory information
+ */
+ int dir_info_count;
+ int dir_info_size;
+ struct dir_info *dir_info;
+
+ /*
+ * Indexed directory information
+ */
+ int dx_dir_info_count;
+ int dx_dir_info_size;
+ struct dx_dir_info *dx_dir_info;
+
+ /*
+ * Directories to hash
+ */
+ ext2_u32_list dirs_to_hash;
+
+ /*
+ * Tuning parameters
+ */
+ int process_inode_size;
+ int inode_buffer_blocks;
+
+ /*
+ * ext3 journal support
+ */
+ io_channel journal_io;
+ char *journal_name;
+
+#ifdef RESOURCE_TRACK
+ /*
+ * For timing purposes
+ */
+ struct resource_track global_rtrack;
+#endif
+
+ /*
+ * How we display the progress update (for unix)
+ */
+ int progress_fd;
+ int progress_pos;
+ int progress_last_percent;
+ unsigned int progress_last_time;
+ int interactive; /* Are we connected directly to a tty? */
+ char start_meta[2], stop_meta[2];
+
+ /* File counts */
+ int fs_directory_count;
+ int fs_regular_count;
+ int fs_blockdev_count;
+ int fs_chardev_count;
+ int fs_links_count;
+ int fs_symlinks_count;
+ int fs_fast_symlinks_count;
+ int fs_fifo_count;
+ int fs_total_count;
+ int fs_badblocks_count;
+ int fs_sockets_count;
+ int fs_ind_count;
+ int fs_dind_count;
+ int fs_tind_count;
+ int fs_fragmented;
+ int large_files;
+ int fs_ext_attr_inodes;
+ int fs_ext_attr_blocks;
+
+ int ext_attr_ver;
+
+ /*
+ * For the use of callers of the e2fsck functions; not used by
+ * e2fsck functions themselves.
+ */
+ void *priv_data;
+};
+
+
+
+static inline int tid_gt(tid_t x, tid_t y)
+{
+ int difference = (x - y);
+ return (difference > 0);
+}
+
+static inline int tid_geq(tid_t x, tid_t y)
+{
+ int difference = (x - y);
+ return (difference >= 0);
+}
+
+
#ifndef _LINUX_JBD_H
#define _LINUX_JBD_H
-#if defined(CONFIG_JBD) || defined(CONFIG_JBD_MODULE) || !defined(__KERNEL__)
-
-/* Allow this file to be included directly into e2fsprogs */
-#ifndef __KERNEL__
-#include "jfs_compat.h"
-#define JFS_DEBUG
-#define jfs_debug jbd_debug
-#else
-
-#include <linux/journal-head.h>
-#include <linux/stddef.h>
-#include <asm/semaphore.h>
-#endif
-
-#ifndef __GNUC__
-#define __FUNCTION__ ""
-#endif
-
-#define journal_oom_retry 1
-
-#ifdef __STDC__
-#ifdef __CONFIG_JBD_DEBUG__E2FS
-/*
- * Define JBD_EXPENSIVE_CHECKING to enable more expensive internal
- * consistency checks. By default we don't do this unless
- * __CONFIG_JBD_DEBUG__E2FS is on.
- */
-#define JBD_EXPENSIVE_CHECKING
-extern int journal_enable_debug;
-
-#define jbd_debug(n, f, a...) \
- do { \
- if ((n) <= journal_enable_debug) { \
- printk (KERN_DEBUG "(%s, %d): %s: ", \
- __FILE__, __LINE__, __FUNCTION__); \
- printk (f, ## a); \
- } \
- } while (0)
-#else
-#ifdef __GNUC__
-#define jbd_debug(f, a...) /**/
-#else
-#define jbd_debug(f, ...) /**/
-#endif
-#endif
-#else
-#define jbd_debug(x) /* AIX doesn't do STDC */
-#endif
-
-extern void * __jbd_kmalloc (char *where, size_t size, int flags, int retry);
-#define jbd_kmalloc(size, flags) \
- __jbd_kmalloc(__FUNCTION__, (size), (flags), journal_oom_retry)
-#define jbd_rep_kmalloc(size, flags) \
- __jbd_kmalloc(__FUNCTION__, (size), (flags), 1)
-
-#define JFS_MIN_JOURNAL_BLOCKS 1024
-
-#ifdef __KERNEL__
-typedef struct handle_s handle_t; /* Atomic operation type */
-typedef struct journal_s journal_t; /* Journal control structure */
-#endif
-
-/*
- * Internal structures used by the logging mechanism:
- */
-
-#define JFS_MAGIC_NUMBER 0xc03b3998U /* The first 4 bytes of /dev/random! */
-
-/*
- * On-disk structures
- */
-
-/*
- * Descriptor block types:
- */
-
-#define JFS_DESCRIPTOR_BLOCK 1
-#define JFS_COMMIT_BLOCK 2
-#define JFS_SUPERBLOCK_V1 3
-#define JFS_SUPERBLOCK_V2 4
-#define JFS_REVOKE_BLOCK 5
+#include <sys/types.h>
+#include <linux/types.h>
+#include "ext2fs/ext2fs.h"
/*
* Standard header for all descriptor blocks:
*/
+
typedef struct journal_header_s
{
__u32 h_magic;
__u32 h_sequence;
} journal_header_t;
-
-/*
- * The block tag: used to describe a single buffer in the journal
- */
-typedef struct journal_block_tag_s
-{
- __u32 t_blocknr; /* The on-disk block number */
- __u32 t_flags; /* See below */
-} journal_block_tag_t;
-
/*
- * The revoke descriptor: used on disk to describe a series of blocks to
- * be revoked from the log
+ * This is the global e2fsck structure.
*/
-typedef struct journal_revoke_header_s
-{
- journal_header_t r_header;
- int r_count; /* Count of bytes used in the block */
-} journal_revoke_header_t;
+typedef struct e2fsck_struct *e2fsck_t;
-/* Definitions for the journal tag flags word: */
-#define JFS_FLAG_ESCAPE 1 /* on-disk block is escaped */
-#define JFS_FLAG_SAME_UUID 2 /* block has same uuid as previous */
-#define JFS_FLAG_DELETED 4 /* block deleted by this transaction */
-#define JFS_FLAG_LAST_TAG 8 /* last tag in this descriptor block */
+struct inode {
+ e2fsck_t i_ctx;
+ ext2_ino_t i_ino;
+ struct ext2_inode i_ext2;
+};
/*
/* 0x0400 */
} journal_superblock_t;
+
+extern int journal_blocks_per_page(struct inode *inode);
+extern int jbd_blocks_per_page(struct inode *inode);
+
+#define JFS_MIN_JOURNAL_BLOCKS 1024
+
+
+/*
+ * Internal structures used by the logging mechanism:
+ */
+
+#define JFS_MAGIC_NUMBER 0xc03b3998U /* The first 4 bytes of /dev/random! */
+
+/*
+ * Descriptor block types:
+ */
+
+#define JFS_DESCRIPTOR_BLOCK 1
+#define JFS_COMMIT_BLOCK 2
+#define JFS_SUPERBLOCK_V1 3
+#define JFS_SUPERBLOCK_V2 4
+#define JFS_REVOKE_BLOCK 5
+
+/*
+ * The block tag: used to describe a single buffer in the journal
+ */
+typedef struct journal_block_tag_s
+{
+ __u32 t_blocknr; /* The on-disk block number */
+ __u32 t_flags; /* See below */
+} journal_block_tag_t;
+
+/*
+ * The revoke descriptor: used on disk to describe a series of blocks to
+ * be revoked from the log
+ */
+typedef struct journal_revoke_header_s
+{
+ journal_header_t r_header;
+ int r_count; /* Count of bytes used in the block */
+} journal_revoke_header_t;
+
+
+/* Definitions for the journal tag flags word: */
+#define JFS_FLAG_ESCAPE 1 /* on-disk block is escaped */
+#define JFS_FLAG_SAME_UUID 2 /* block has same uuid as previous */
+#define JFS_FLAG_DELETED 4 /* block deleted by this transaction */
+#define JFS_FLAG_LAST_TAG 8 /* last tag in this descriptor block */
+
+
+
+
#define JFS_HAS_COMPAT_FEATURE(j,mask) \
((j)->j_format_version >= 2 && \
((j)->j_superblock->s_feature_compat & cpu_to_be32((mask))))
#define JFS_KNOWN_ROCOMPAT_FEATURES 0
#define JFS_KNOWN_INCOMPAT_FEATURES JFS_FEATURE_INCOMPAT_REVOKE
-#ifdef __KERNEL__
-
-#include <linux/fs.h>
-#include <linux/sched.h>
-
-#define JBD_ASSERTIONS
-#ifdef JBD_ASSERTIONS
-#define J_ASSERT(assert) \
-do { \
- if (!(assert)) { \
- printk (KERN_EMERG \
- "Assertion failure in %s() at %s:%d: \"%s\"\n", \
- __FUNCTION__, __FILE__, __LINE__, # assert); \
- BUG(); \
- } \
-} while (0)
-
-#if defined(CONFIG_BUFFER_DEBUG)
-void buffer_assertion_failure(struct buffer_head *bh);
-#define J_ASSERT_BH(bh, expr) \
- do { \
- if (!(expr)) \
- buffer_assertion_failure(bh); \
- J_ASSERT(expr); \
- } while (0)
-#define J_ASSERT_JH(jh, expr) J_ASSERT_BH(jh2bh(jh), expr)
-#else
-#define J_ASSERT_BH(bh, expr) J_ASSERT(expr)
-#define J_ASSERT_JH(jh, expr) J_ASSERT(expr)
-#endif
-
-#else
-#define J_ASSERT(assert)
-#endif /* JBD_ASSERTIONS */
-
-enum jbd_state_bits {
- BH_JWrite
- = BH_PrivateStart, /* 1 if being written to log (@@@ DEBUGGING) */
- BH_Freed, /* 1 if buffer has been freed (truncated) */
- BH_Revoked, /* 1 if buffer has been revoked from the log */
- BH_RevokeValid, /* 1 if buffer revoked flag is valid */
- BH_JBDDirty, /* 1 if buffer is dirty but journaled */
-};
-
-/* Return true if the buffer is one which JBD is managing */
-static inline int buffer_jbd(struct buffer_head *bh)
-{
- return __buffer_state(bh, JBD);
-}
-
-static inline struct buffer_head *jh2bh(struct journal_head *jh)
-{
- return jh->b_bh;
-}
-
-static inline struct journal_head *bh2jh(struct buffer_head *bh)
-{
- return bh->b_private;
-}
-
-struct jbd_revoke_table_s;
-
-/* The handle_t type represents a single atomic update being performed
- * by some process. All filesystem modifications made by the process go
- * through this handle. Recursive operations (such as quota operations)
- * are gathered into a single update.
- *
- * The buffer credits field is used to account for journaled buffers
- * being modified by the running process. To ensure that there is
- * enough log space for all outstanding operations, we need to limit the
- * number of outstanding buffers possible at any time. When the
- * operation completes, any buffer credits not used are credited back to
- * the transaction, so that at all times we know how many buffers the
- * outstanding updates on a transaction might possibly touch. */
-
-struct handle_s
-{
- /* Which compound transaction is this update a part of? */
- transaction_t * h_transaction;
-
- /* Number of remaining buffers we are allowed to dirty: */
- int h_buffer_credits;
-
- /* Reference count on this handle */
- int h_ref;
+/* Comparison functions for transaction IDs: perform comparisons using
+ * modulo arithmetic so that they work over sequence number wraps. */
- /* Field for caller's use to track errors through large fs
- operations */
- int h_err;
- /* Flags */
- unsigned int h_sync: 1; /* sync-on-close */
- unsigned int h_jdata: 1; /* force data journaling */
- unsigned int h_aborted: 1; /* fatal error on handle */
-};
+/*
+ * Definitions which augment the buffer_head layer
+ */
+/* journaling buffer types */
+#define BJ_None 0 /* Not journaled */
+#define BJ_SyncData 1 /* Normal data: flush before commit */
+#define BJ_AsyncData 2 /* writepage data: wait on it before commit */
+#define BJ_Metadata 3 /* Normal journaled metadata */
+#define BJ_Forget 4 /* Buffer superceded by this transaction */
+#define BJ_IO 5 /* Buffer is for temporary IO use */
+#define BJ_Shadow 6 /* Buffer contents being shadowed to the log */
+#define BJ_LogCtl 7 /* Buffer contains log descriptors */
+#define BJ_Reserved 8 /* Buffer is reserved for access by journal */
+#define BJ_Types 9
-/* The transaction_t type is the guts of the journaling mechanism. It
- * tracks a compound transaction through its various states:
- *
- * RUNNING: accepting new updates
- * LOCKED: Updates still running but we don't accept new ones
- * RUNDOWN: Updates are tidying up but have finished requesting
- * new buffers to modify (state not used for now)
- * FLUSH: All updates complete, but we are still writing to disk
- * COMMIT: All data on disk, writing commit record
- * FINISHED: We still have to keep the transaction for checkpointing.
- *
- * The transaction keeps track of all of the buffers modified by a
- * running transaction, and all of the buffers committed but not yet
- * flushed to home for finished transactions.
- */
-struct transaction_s
-{
- /* Pointer to the journal for this transaction. */
- journal_t * t_journal;
-
- /* Sequence number for this transaction */
- tid_t t_tid;
-
- /* Transaction's current state */
- enum {
- T_RUNNING,
- T_LOCKED,
- T_RUNDOWN,
- T_FLUSH,
- T_COMMIT,
- T_FINISHED
- } t_state;
-
- /* Where in the log does this transaction's commit start? */
- unsigned long t_log_start;
-
- /* Doubly-linked circular list of all inodes owned by this
- transaction */ /* AKPM: unused */
- struct inode * t_ilist;
-
- /* Number of buffers on the t_buffers list */
- int t_nr_buffers;
-
- /* Doubly-linked circular list of all buffers reserved but not
- yet modified by this transaction */
- struct journal_head * t_reserved_list;
-
- /* Doubly-linked circular list of all metadata buffers owned by this
- transaction */
- struct journal_head * t_buffers;
-
- /*
- * Doubly-linked circular list of all data buffers still to be
- * flushed before this transaction can be committed.
- * Protected by journal_datalist_lock.
- */
- struct journal_head * t_sync_datalist;
-
- /*
- * Doubly-linked circular list of all writepage data buffers
- * still to be written before this transaction can be committed.
- * Protected by journal_datalist_lock.
- */
- struct journal_head * t_async_datalist;
-
- /* Doubly-linked circular list of all forget buffers (superceded
- buffers which we can un-checkpoint once this transaction
- commits) */
- struct journal_head * t_forget;
-
- /*
- * Doubly-linked circular list of all buffers still to be
- * flushed before this transaction can be checkpointed.
- */
- /* Protected by journal_datalist_lock */
- struct journal_head * t_checkpoint_list;
-
- /* Doubly-linked circular list of temporary buffers currently
- undergoing IO in the log */
- struct journal_head * t_iobuf_list;
-
- /* Doubly-linked circular list of metadata buffers being
- shadowed by log IO. The IO buffers on the iobuf list and the
- shadow buffers on this list match each other one for one at
- all times. */
- struct journal_head * t_shadow_list;
-
- /* Doubly-linked circular list of control buffers being written
- to the log. */
- struct journal_head * t_log_list;
-
- /* Number of outstanding updates running on this transaction */
- int t_updates;
-
- /* Number of buffers reserved for use by all handles in this
- * transaction handle but not yet modified. */
- int t_outstanding_credits;
-
- /*
- * Forward and backward links for the circular list of all
- * transactions awaiting checkpoint.
- */
- /* Protected by journal_datalist_lock */
- transaction_t *t_cpnext, *t_cpprev;
-
- /* When will the transaction expire (become due for commit), in
- * jiffies ? */
- unsigned long t_expires;
-
- /* How many handles used this transaction? */
- int t_handle_count;
+struct kdev_s {
+ e2fsck_t k_ctx;
+ int k_dev;
};
-
-/* The journal_t maintains all of the journaling state information for a
- * single filesystem. It is linked to from the fs superblock structure.
- *
- * We use the journal_t to keep track of all outstanding transaction
- * activity on the filesystem, and to manage the state of the log
- * writing process. */
+typedef struct kdev_s *kdev_t;
+typedef unsigned int tid_t;
struct journal_s
{
- /* General journaling state flags */
unsigned long j_flags;
-
- /* Is there an outstanding uncleared error on the journal (from
- * a prior abort)? */
int j_errno;
-
- /* The superblock buffer */
struct buffer_head * j_sb_buffer;
- journal_superblock_t * j_superblock;
-
- /* Version of the superblock format */
+ struct journal_superblock_s *j_superblock;
int j_format_version;
-
- /* Number of processes waiting to create a barrier lock */
- int j_barrier_count;
-
- /* The barrier lock itself */
- struct semaphore j_barrier;
-
- /* Transactions: The current running transaction... */
- transaction_t * j_running_transaction;
-
- /* ... the transaction we are pushing to disk ... */
- transaction_t * j_committing_transaction;
-
- /* ... and a linked circular list of all transactions waiting
- * for checkpointing. */
- /* Protected by journal_datalist_lock */
- transaction_t * j_checkpoint_transactions;
-
- /* Wait queue for waiting for a locked transaction to start
- committing, or for a barrier lock to be released */
- wait_queue_head_t j_wait_transaction_locked;
-
- /* Wait queue for waiting for checkpointing to complete */
- wait_queue_head_t j_wait_logspace;
-
- /* Wait queue for waiting for commit to complete */
- wait_queue_head_t j_wait_done_commit;
-
- /* Wait queue to trigger checkpointing */
- wait_queue_head_t j_wait_checkpoint;
-
- /* Wait queue to trigger commit */
- wait_queue_head_t j_wait_commit;
-
- /* Wait queue to wait for updates to complete */
- wait_queue_head_t j_wait_updates;
-
- /* Semaphore for locking against concurrent checkpoints */
- struct semaphore j_checkpoint_sem;
-
- /* The main journal lock, used by lock_journal() */
- struct semaphore j_sem;
-
- /* Journal head: identifies the first unused block in the journal. */
unsigned long j_head;
-
- /* Journal tail: identifies the oldest still-used block in the
- * journal. */
unsigned long j_tail;
-
- /* Journal free: how many free blocks are there in the journal? */
unsigned long j_free;
-
- /* Journal start and end: the block numbers of the first usable
- * block and one beyond the last usable block in the journal. */
unsigned long j_first, j_last;
-
- /* Device, blocksize and starting block offset for the location
- * where we store the journal. */
kdev_t j_dev;
+ kdev_t j_fs_dev;
int j_blocksize;
unsigned int j_blk_offset;
-
- /* Device which holds the client fs. For internal journal this
- * will be equal to j_dev. */
- kdev_t j_fs_dev;
-
- /* Total maximum capacity of the journal region on disk. */
unsigned int j_maxlen;
-
- /* Optional inode where we store the journal. If present, all
- * journal block numbers are mapped into this inode via
- * bmap(). */
struct inode * j_inode;
-
- /* Sequence number of the oldest transaction in the log */
tid_t j_tail_sequence;
- /* Sequence number of the next transaction to grant */
tid_t j_transaction_sequence;
- /* Sequence number of the most recently committed transaction */
- tid_t j_commit_sequence;
- /* Sequence number of the most recent transaction wanting commit */
- tid_t j_commit_request;
-
- /* Journal uuid: identifies the object (filesystem, LVM volume
- * etc) backed by this journal. This will eventually be
- * replaced by an array of uuids, allowing us to index multiple
- * devices within a single journal and to perform atomic updates
- * across them. */
-
__u8 j_uuid[16];
-
- /* Pointer to the current commit thread for this journal */
- struct task_struct * j_task;
-
- /* Maximum number of metadata buffers to allow in a single
- * compound commit transaction */
- int j_max_transaction_buffers;
-
- /* What is the maximum transaction lifetime before we begin a
- * commit? */
- unsigned long j_commit_interval;
-
- /* The timer used to wakeup the commit thread: */
- struct timer_list * j_commit_timer;
- int j_commit_timer_active;
-
- /* Link all journals together - system-wide */
- struct list_head j_all_journals;
-
- /* The revoke table: maintains the list of revoked blocks in the
- current transaction. */
struct jbd_revoke_table_s *j_revoke;
};
-/*
- * Journal flag definitions
- */
-#define JFS_UNMOUNT 0x001 /* Journal thread is being destroyed */
-#define JFS_ABORT 0x002 /* Journaling has been aborted for errors. */
-#define JFS_ACK_ERR 0x004 /* The errno in the sb has been acked */
-#define JFS_FLUSHED 0x008 /* The journal superblock has been flushed */
-#define JFS_LOADED 0x010 /* The journal superblock has been loaded */
-
-/*
- * Function declarations for the journaling transaction and buffer
- * management
- */
-
-/* Filing buffers */
-extern void __journal_unfile_buffer(struct journal_head *);
-extern void journal_unfile_buffer(struct journal_head *);
-extern void __journal_refile_buffer(struct journal_head *);
-extern void journal_refile_buffer(struct journal_head *);
-extern void __journal_file_buffer(struct journal_head *, transaction_t *, int);
-extern void __journal_free_buffer(struct journal_head *bh);
-extern void journal_file_buffer(struct journal_head *, transaction_t *, int);
-extern void __journal_clean_data_list(transaction_t *transaction);
-
-/* Log buffer allocation */
-extern struct journal_head * journal_get_descriptor_buffer(journal_t *);
-extern unsigned long journal_next_log_block(journal_t *);
-
-/* Commit management */
-extern void journal_commit_transaction(journal_t *);
-
-/* Checkpoint list management */
-int __journal_clean_checkpoint_list(journal_t *journal);
-extern void journal_remove_checkpoint(struct journal_head *);
-extern void __journal_remove_checkpoint(struct journal_head *);
-extern void journal_insert_checkpoint(struct journal_head *, transaction_t *);
-extern void __journal_insert_checkpoint(struct journal_head *,transaction_t *);
-
-/* Buffer IO */
-extern int
-journal_write_metadata_buffer(transaction_t *transaction,
- struct journal_head *jh_in,
- struct journal_head **jh_out,
- int blocknr);
-
-/* Transaction locking */
-extern void __wait_on_journal (journal_t *);
-
-/*
- * Journal locking.
- *
- * We need to lock the journal during transaction state changes so that
- * nobody ever tries to take a handle on the running transaction while
- * we are in the middle of moving it to the commit phase.
- *
- * Note that the locking is completely interrupt unsafe. We never touch
- * journal structures from interrupts.
- *
- * In 2.2, the BKL was required for lock_journal. This is no longer
- * the case.
- */
-
-static inline void lock_journal(journal_t *journal)
-{
- down(&journal->j_sem);
-}
-
-/* This returns zero if we acquired the semaphore */
-static inline int try_lock_journal(journal_t * journal)
-{
- return down_trylock(&journal->j_sem);
-}
-
-static inline void unlock_journal(journal_t * journal)
-{
- up(&journal->j_sem);
-}
-
-
-static inline handle_t *journal_current_handle(void)
-{
- return current->journal_info;
-}
-
-/* The journaling code user interface:
- *
- * Create and destroy handles
- * Register buffer modifications against the current transaction.
- */
-
-extern handle_t *journal_start(journal_t *, int nblocks);
-extern handle_t *journal_try_start(journal_t *, int nblocks);
-extern int journal_restart (handle_t *, int nblocks);
-extern int journal_extend (handle_t *, int nblocks);
-extern int journal_get_write_access (handle_t *, struct buffer_head *);
-extern int journal_get_create_access (handle_t *, struct buffer_head *);
-extern int journal_get_undo_access (handle_t *, struct buffer_head *);
-extern int journal_dirty_data (handle_t *,
- struct buffer_head *, int async);
-extern int journal_dirty_metadata (handle_t *, struct buffer_head *);
-extern void journal_release_buffer (handle_t *, struct buffer_head *);
-extern void journal_forget (handle_t *, struct buffer_head *);
-extern void journal_sync_buffer (struct buffer_head *);
-extern int journal_flushpage(journal_t *, struct page *, unsigned long);
-extern int journal_try_to_free_buffers(journal_t *, struct page *, int);
-extern int journal_stop(handle_t *);
-extern int journal_flush (journal_t *);
-
-extern void journal_lock_updates (journal_t *);
-extern void journal_unlock_updates (journal_t *);
-
-extern journal_t * journal_init_dev(kdev_t dev, kdev_t fs_dev,
- int start, int len, int bsize);
-extern journal_t * journal_init_inode (struct inode *);
-extern int journal_update_format (journal_t *);
-extern int journal_check_used_features
- (journal_t *, unsigned long, unsigned long, unsigned long);
-extern int journal_check_available_features
- (journal_t *, unsigned long, unsigned long, unsigned long);
-extern int journal_set_features
- (journal_t *, unsigned long, unsigned long, unsigned long);
-extern int journal_create (journal_t *);
-extern int journal_load (journal_t *journal);
-extern void journal_destroy (journal_t *);
-extern int journal_recover (journal_t *journal);
-extern int journal_wipe (journal_t *, int);
-extern int journal_skip_recovery (journal_t *);
-extern void journal_update_superblock (journal_t *, int);
-extern void __journal_abort (journal_t *);
-extern void journal_abort (journal_t *, int);
-extern int journal_errno (journal_t *);
-extern void journal_ack_err (journal_t *);
-extern int journal_clear_err (journal_t *);
-extern unsigned long journal_bmap(journal_t *journal, unsigned long blocknr);
-extern int journal_force_commit(journal_t *journal);
-
-/*
- * journal_head management
- */
-extern struct journal_head
- *journal_add_journal_head(struct buffer_head *bh);
-extern void journal_remove_journal_head(struct buffer_head *bh);
-extern void __journal_remove_journal_head(struct buffer_head *bh);
-extern void journal_unlock_journal_head(struct journal_head *jh);
-
-/* Primary revoke support */
-#define JOURNAL_REVOKE_DEFAULT_HASH 256
-extern int journal_init_revoke(journal_t *, int);
-extern void journal_destroy_revoke_caches(void);
-extern int journal_init_revoke_caches(void);
-
-extern void journal_destroy_revoke(journal_t *);
-extern int journal_revoke (handle_t *,
- unsigned long, struct buffer_head *);
-extern int journal_cancel_revoke(handle_t *, struct journal_head *);
-extern void journal_write_revoke_records(journal_t *, transaction_t *);
-
-/* Recovery revoke support */
-extern int journal_set_revoke(journal_t *, unsigned long, tid_t);
-extern int journal_test_revoke(journal_t *, unsigned long, tid_t);
-extern void journal_clear_revoke(journal_t *);
-extern void journal_brelse_array(struct buffer_head *b[], int n);
-
-/* The log thread user interface:
- *
- * Request space in the current transaction, and force transaction commit
- * transitions on demand.
- */
-
-extern int log_space_left (journal_t *); /* Called with journal locked */
-extern tid_t log_start_commit (journal_t *, transaction_t *);
-extern void log_wait_commit (journal_t *, tid_t);
-extern int log_do_checkpoint (journal_t *, int);
-
-extern void log_wait_for_space(journal_t *, int nblocks);
-extern void __journal_drop_transaction(journal_t *, transaction_t *);
-extern int cleanup_journal_tail(journal_t *);
-
-/* Reduce journal memory usage by flushing */
-extern void shrink_journal_memory(void);
-
-/* Debugging code only: */
-
-#define jbd_ENOSYS() \
-do { \
- printk (KERN_ERR "JBD unimplemented function " __FUNCTION__); \
- current->state = TASK_UNINTERRUPTIBLE; \
- schedule(); \
-} while (1)
-
-/*
- * is_journal_abort
- *
- * Simple test wrapper function to test the JFS_ABORT state flag. This
- * bit, when set, indicates that we have had a fatal error somewhere,
- * either inside the journaling layer or indicated to us by the client
- * (eg. ext3), and that we and should not commit any further
- * transactions.
- */
-
-static inline int is_journal_aborted(journal_t *journal)
-{
- return journal->j_flags & JFS_ABORT;
-}
-
-static inline int is_handle_aborted(handle_t *handle)
-{
- if (handle->h_aborted)
- return 1;
- return is_journal_aborted(handle->h_transaction->t_journal);
-}
-
-static inline void journal_abort_handle(handle_t *handle)
-{
- handle->h_aborted = 1;
-}
-
-/* Not all architectures define BUG() */
-#ifndef BUG
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
- * ((char *) 0) = 0; \
- } while (0)
-#endif /* BUG */
-
-#else
+typedef struct journal_s journal_t;
extern int journal_recover (journal_t *journal);
extern int journal_skip_recovery (journal_t *);
extern void journal_brelse_array(struct buffer_head *b[], int n);
extern void journal_destroy_revoke(journal_t *);
-#endif /* __KERNEL__ */
-
-/* Comparison functions for transaction IDs: perform comparisons using
- * modulo arithmetic so that they work over sequence number wraps. */
-
-static inline int tid_gt(tid_t x, tid_t y)
-{
- int difference = (x - y);
- return (difference > 0);
-}
-
-static inline int tid_geq(tid_t x, tid_t y)
-{
- int difference = (x - y);
- return (difference >= 0);
-}
-
-extern int journal_blocks_per_page(struct inode *inode);
-
-/*
- * Definitions which augment the buffer_head layer
- */
-
-/* journaling buffer types */
-#define BJ_None 0 /* Not journaled */
-#define BJ_SyncData 1 /* Normal data: flush before commit */
-#define BJ_AsyncData 2 /* writepage data: wait on it before commit */
-#define BJ_Metadata 3 /* Normal journaled metadata */
-#define BJ_Forget 4 /* Buffer superceded by this transaction */
-#define BJ_IO 5 /* Buffer is for temporary IO use */
-#define BJ_Shadow 6 /* Buffer contents being shadowed to the log */
-#define BJ_LogCtl 7 /* Buffer contains log descriptors */
-#define BJ_Reserved 8 /* Buffer is reserved for access by journal */
-#define BJ_Types 9
-
-extern int jbd_blocks_per_page(struct inode *inode);
-
-#ifdef __KERNEL__
-
-extern spinlock_t jh_splice_lock;
-/*
- * Once `expr1' has been found true, take jh_splice_lock
- * and then reevaluate everything.
- */
-#define SPLICE_LOCK(expr1, expr2) \
- ({ \
- int ret = (expr1); \
- if (ret) { \
- spin_lock(&jh_splice_lock); \
- ret = (expr1) && (expr2); \
- spin_unlock(&jh_splice_lock); \
- } \
- ret; \
- })
-
-/*
- * A number of buffer state predicates. They test for
- * buffer_jbd() because they are used in core kernel code.
- *
- * These will be racy on SMP unless we're *sure* that the
- * buffer won't be detached from the journalling system
- * in parallel.
- */
-
-/* Return true if the buffer is on journal list `list' */
-static inline int buffer_jlist_eq(struct buffer_head *bh, int list)
-{
- return SPLICE_LOCK(buffer_jbd(bh), bh2jh(bh)->b_jlist == list);
-}
-
-/* Return true if this bufer is dirty wrt the journal */
-static inline int buffer_jdirty(struct buffer_head *bh)
-{
- return buffer_jbd(bh) && __buffer_state(bh, JBDDirty);
-}
-
-/* Return true if it's a data buffer which journalling is managing */
-static inline int buffer_jbd_data(struct buffer_head *bh)
-{
- return SPLICE_LOCK(buffer_jbd(bh),
- bh2jh(bh)->b_jlist == BJ_SyncData ||
- bh2jh(bh)->b_jlist == BJ_AsyncData);
-}
-
-#ifdef CONFIG_SMP
-#define assert_spin_locked(lock) J_ASSERT(spin_is_locked(lock))
-#else
-#define assert_spin_locked(lock) do {} while(0)
-#endif
-
-#define buffer_trace_init(bh) do {} while (0)
-#define print_buffer_fields(bh) do {} while (0)
-#define print_buffer_trace(bh) do {} while (0)
-#define BUFFER_TRACE(bh, info) do {} while (0)
-#define BUFFER_TRACE2(bh, bh2, info) do {} while (0)
-#define JBUFFER_TRACE(jh, info) do {} while (0)
-
-#endif /* __KERNEL__ */
-
-#endif /* CONFIG_JBD || CONFIG_JBD_MODULE || !__KERNEL__ */
-
-/*
- * Compatibility no-ops which allow the kernel to compile without CONFIG_JBD
- * go here.
- */
-
-#if defined(__KERNEL__) && !(defined(CONFIG_JBD) || defined(CONFIG_JBD_MODULE))
-#define J_ASSERT(expr) do {} while (0)
-#define J_ASSERT_BH(bh, expr) do {} while (0)
-#define buffer_jbd(bh) 0
-#define buffer_jlist_eq(bh, val) 0
-#define journal_buffer_journal_lru(bh) 0
-#endif /* defined(__KERNEL__) && !defined(CONFIG_JBD) */
#endif /* _LINUX_JBD_H */
projects / oweals / busybox.git / commitdiff