zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/app/e2fsprogs/e2fsprogs-1.42.9/resize/main.c b/ap/app/e2fsprogs/e2fsprogs-1.42.9/resize/main.c
new file mode 100644
index 0000000..2b7abff
--- /dev/null
+++ b/ap/app/e2fsprogs/e2fsprogs-1.42.9/resize/main.c
@@ -0,0 +1,496 @@
+/*
+ * main.c --- ext2 resizer main program
+ *
+ * Copyright (C) 1997, 1998 by Theodore Ts'o and
+ * PowerQuest, Inc.
+ *
+ * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 by Theodore Ts'o
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#define _LARGEFILE_SOURCE
+#define _LARGEFILE64_SOURCE
+
+#include "config.h"
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern char *optarg;
+extern int optind;
+#endif
+#include <unistd.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "e2p/e2p.h"
+
+#include "resize2fs.h"
+
+#include "../version.h"
+
+char *program_name;
+static char *device_name, *io_options;
+
+static void usage (char *prog)
+{
+ fprintf (stderr, _("Usage: %s [-d debug_flags] [-f] [-F] [-M] [-P] "
+ "[-p] device [new_size]\n\n"), prog);
+
+ exit (1);
+}
+
+static errcode_t resize_progress_func(ext2_resize_t rfs, int pass,
+ unsigned long cur, unsigned long max)
+{
+ ext2_sim_progmeter progress;
+ const char *label;
+ errcode_t retval;
+
+ progress = (ext2_sim_progmeter) rfs->prog_data;
+ if (max == 0)
+ return 0;
+ if (cur == 0) {
+ if (progress)
+ ext2fs_progress_close(progress);
+ progress = 0;
+ switch (pass) {
+ case E2_RSZ_EXTEND_ITABLE_PASS:
+ label = _("Extending the inode table");
+ break;
+ case E2_RSZ_BLOCK_RELOC_PASS:
+ label = _("Relocating blocks");
+ break;
+ case E2_RSZ_INODE_SCAN_PASS:
+ label = _("Scanning inode table");
+ break;
+ case E2_RSZ_INODE_REF_UPD_PASS:
+ label = _("Updating inode references");
+ break;
+ case E2_RSZ_MOVE_ITABLE_PASS:
+ label = _("Moving inode table");
+ break;
+ default:
+ label = _("Unknown pass?!?");
+ break;
+ }
+ printf(_("Begin pass %d (max = %lu)\n"), pass, max);
+ retval = ext2fs_progress_init(&progress, label, 30,
+ 40, max, 0);
+ if (retval)
+ progress = 0;
+ rfs->prog_data = (void *) progress;
+ }
+ if (progress)
+ ext2fs_progress_update(progress, cur);
+ if (cur >= max) {
+ if (progress)
+ ext2fs_progress_close(progress);
+ progress = 0;
+ rfs->prog_data = 0;
+ }
+ return 0;
+}
+
+static void determine_fs_stride(ext2_filsys fs)
+{
+ unsigned int group;
+ unsigned long long sum;
+ unsigned int has_sb, prev_has_sb = 0, num;
+ int i_stride, b_stride;
+
+ if (fs->stride)
+ return;
+ num = 0; sum = 0;
+ for (group = 0; group < fs->group_desc_count; group++) {
+ has_sb = ext2fs_bg_has_super(fs, group);
+ if (group == 0 || has_sb != prev_has_sb)
+ goto next;
+ b_stride = ext2fs_block_bitmap_loc(fs, group) -
+ ext2fs_block_bitmap_loc(fs, group - 1) -
+ fs->super->s_blocks_per_group;
+ i_stride = ext2fs_inode_bitmap_loc(fs, group) -
+ ext2fs_inode_bitmap_loc(fs, group - 1) -
+ fs->super->s_blocks_per_group;
+ if (b_stride != i_stride ||
+ b_stride < 0)
+ goto next;
+
+ /* printf("group %d has stride %d\n", group, b_stride); */
+ sum += b_stride;
+ num++;
+
+ next:
+ prev_has_sb = has_sb;
+ }
+
+ if (fs->group_desc_count > 12 && num < 3)
+ sum = 0;
+
+ if (num)
+ fs->stride = sum / num;
+ else
+ fs->stride = 0;
+
+ fs->super->s_raid_stride = fs->stride;
+ ext2fs_mark_super_dirty(fs);
+
+#if 0
+ if (fs->stride)
+ printf("Using RAID stride of %d\n", fs->stride);
+#endif
+}
+
+static void bigalloc_check(ext2_filsys fs, int force)
+{
+ if (!force && EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
+ fprintf(stderr, "%s", _("\nResizing bigalloc file systems has "
+ "not been fully tested. Proceed at\n"
+ "your own risk! Use the force option "
+ "if you want to go ahead anyway.\n\n"));
+ exit(1);
+ }
+}
+
+int main (int argc, char ** argv)
+{
+ errcode_t retval;
+ ext2_filsys fs;
+ int c;
+ int flags = 0;
+ int flush = 0;
+ int force = 0;
+ int io_flags = 0;
+ int force_min_size = 0;
+ int print_min_size = 0;
+ int fd, ret;
+ blk64_t new_size = 0;
+ blk64_t max_size = 0;
+ blk64_t min_size = 0;
+ io_manager io_ptr;
+ char *new_size_str = 0;
+ int use_stride = -1;
+ ext2fs_struct_stat st_buf;
+ __s64 new_file_size;
+ unsigned int sys_page_size = 4096;
+ long sysval;
+ int len, mount_flags;
+ char *mtpt;
+
+#ifdef ENABLE_NLS
+ setlocale(LC_MESSAGES, "");
+ setlocale(LC_CTYPE, "");
+ bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
+ textdomain(NLS_CAT_NAME);
+ set_com_err_gettext(gettext);
+#endif
+
+ add_error_table(&et_ext2_error_table);
+
+ fprintf (stderr, "resize2fs %s (%s)\n",
+ E2FSPROGS_VERSION, E2FSPROGS_DATE);
+ if (argc && *argv)
+ program_name = *argv;
+
+ while ((c = getopt (argc, argv, "d:fFhMPpS:")) != EOF) {
+ switch (c) {
+ case 'h':
+ usage(program_name);
+ break;
+ case 'f':
+ force = 1;
+ break;
+ case 'F':
+ flush = 1;
+ break;
+ case 'M':
+ force_min_size = 1;
+ break;
+ case 'P':
+ print_min_size = 1;
+ break;
+ case 'd':
+ flags |= atoi(optarg);
+ break;
+ case 'p':
+ flags |= RESIZE_PERCENT_COMPLETE;
+ break;
+ case 'S':
+ use_stride = atoi(optarg);
+ break;
+ default:
+ usage(program_name);
+ }
+ }
+ if (optind == argc)
+ usage(program_name);
+
+ device_name = argv[optind++];
+ if (optind < argc)
+ new_size_str = argv[optind++];
+ if (optind < argc)
+ usage(program_name);
+
+ io_options = strchr(device_name, '?');
+ if (io_options)
+ *io_options++ = 0;
+
+ /*
+ * Figure out whether or not the device is mounted, and if it is
+ * where it is mounted.
+ */
+ len=80;
+ while (1) {
+ mtpt = malloc(len);
+ if (!mtpt)
+ return ENOMEM;
+ mtpt[len-1] = 0;
+ retval = ext2fs_check_mount_point(device_name, &mount_flags,
+ mtpt, len);
+ if (retval) {
+ com_err("ext2fs_check_mount_point", retval,
+ _("while determining whether %s is mounted."),
+ device_name);
+ exit(1);
+ }
+ if (!(mount_flags & EXT2_MF_MOUNTED) || (mtpt[len-1] == 0))
+ break;
+ free(mtpt);
+ len = 2 * len;
+ }
+
+ fd = ext2fs_open_file(device_name, O_RDWR, 0);
+ if (fd < 0) {
+ com_err("open", errno, _("while opening %s"),
+ device_name);
+ exit(1);
+ }
+
+ ret = ext2fs_fstat(fd, &st_buf);
+ if (ret < 0) {
+ com_err("open", errno,
+ _("while getting stat information for %s"),
+ device_name);
+ exit(1);
+ }
+
+ if (flush) {
+ retval = ext2fs_sync_device(fd, 1);
+ if (retval) {
+ com_err(argv[0], retval,
+ _("while trying to flush %s"),
+ device_name);
+ exit(1);
+ }
+ }
+
+ if (!S_ISREG(st_buf.st_mode )) {
+ close(fd);
+ fd = -1;
+ }
+
+#ifdef CONFIG_TESTIO_DEBUG
+ if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
+ io_ptr = test_io_manager;
+ test_io_backing_manager = unix_io_manager;
+ } else
+#endif
+ io_ptr = unix_io_manager;
+
+ if (!(mount_flags & EXT2_MF_MOUNTED))
+ io_flags = EXT2_FLAG_RW | EXT2_FLAG_EXCLUSIVE;
+
+ io_flags |= EXT2_FLAG_64BITS;
+
+ retval = ext2fs_open2(device_name, io_options, io_flags,
+ 0, 0, io_ptr, &fs);
+ if (retval) {
+ com_err(program_name, retval, _("while trying to open %s"),
+ device_name);
+ printf("%s", _("Couldn't find valid filesystem superblock.\n"));
+ exit (1);
+ }
+
+ /*
+ * Check for compatibility with the feature sets. We need to
+ * be more stringent than ext2fs_open().
+ */
+ if (fs->super->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) {
+ com_err(program_name, EXT2_ET_UNSUPP_FEATURE,
+ "(%s)", device_name);
+ exit(1);
+ }
+
+ min_size = calculate_minimum_resize_size(fs, flags);
+
+ if (print_min_size) {
+ if (!force && ((fs->super->s_state & EXT2_ERROR_FS) ||
+ ((fs->super->s_state & EXT2_VALID_FS) == 0))) {
+ fprintf(stderr,
+ _("Please run 'e2fsck -f %s' first.\n\n"),
+ device_name);
+ exit(1);
+ }
+ printf(_("Estimated minimum size of the filesystem: %llu\n"),
+ min_size);
+ exit(0);
+ }
+
+ /* Determine the system page size if possible */
+#ifdef HAVE_SYSCONF
+#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
+#define _SC_PAGESIZE _SC_PAGE_SIZE
+#endif
+#ifdef _SC_PAGESIZE
+ sysval = sysconf(_SC_PAGESIZE);
+ if (sysval > 0)
+ sys_page_size = sysval;
+#endif /* _SC_PAGESIZE */
+#endif /* HAVE_SYSCONF */
+
+ /*
+ * Get the size of the containing partition, and use this for
+ * defaults and for making sure the new filesystem doesn't
+ * exceed the partition size.
+ */
+ retval = ext2fs_get_device_size2(device_name, fs->blocksize,
+ &max_size);
+ if (retval) {
+ com_err(program_name, retval, "%s",
+ _("while trying to determine filesystem size"));
+ exit(1);
+ }
+ if (force_min_size)
+ new_size = min_size;
+ else if (new_size_str) {
+ new_size = parse_num_blocks2(new_size_str,
+ fs->super->s_log_block_size);
+ if (new_size == 0) {
+ com_err(program_name, 0,
+ _("Invalid new size: %s\n"), new_size_str);
+ exit(1);
+ }
+ } else {
+ new_size = max_size;
+ /* Round down to an even multiple of a pagesize */
+ if (sys_page_size > fs->blocksize)
+ new_size &= ~((sys_page_size / fs->blocksize)-1);
+ }
+ if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_INCOMPAT_64BIT)) {
+ /* Take 16T down to 2^32-1 blocks */
+ if (new_size == (1ULL << 32))
+ new_size--;
+ else if (new_size > (1ULL << 32)) {
+ com_err(program_name, 0, "%s",
+ _("New size too large to be "
+ "expressed in 32 bits\n"));
+ exit(1);
+ }
+ }
+
+ if (!force && new_size < min_size) {
+ com_err(program_name, 0,
+ _("New size smaller than minimum (%llu)\n"), min_size);
+ exit(1);
+ }
+ if (use_stride >= 0) {
+ if (use_stride >= (int) fs->super->s_blocks_per_group) {
+ com_err(program_name, 0, "%s",
+ _("Invalid stride length"));
+ exit(1);
+ }
+ fs->stride = fs->super->s_raid_stride = use_stride;
+ ext2fs_mark_super_dirty(fs);
+ } else
+ determine_fs_stride(fs);
+
+ /*
+ * If we are resizing a plain file, and it's not big enough,
+ * automatically extend it in a sparse fashion by writing the
+ * last requested block.
+ */
+ new_file_size = ((__u64) new_size) * fs->blocksize;
+ if ((__u64) new_file_size >
+ (((__u64) 1) << (sizeof(st_buf.st_size)*8 - 1)) - 1)
+ fd = -1;
+ if ((new_file_size > st_buf.st_size) &&
+ (fd > 0)) {
+ if ((ext2fs_llseek(fd, new_file_size-1, SEEK_SET) >= 0) &&
+ (write(fd, "0", 1) == 1))
+ max_size = new_size;
+ }
+ if (!force && (new_size > max_size)) {
+ fprintf(stderr, _("The containing partition (or device)"
+ " is only %llu (%dk) blocks.\nYou requested a new size"
+ " of %llu blocks.\n\n"), max_size,
+ fs->blocksize / 1024, new_size);
+ exit(1);
+ }
+ if (new_size == ext2fs_blocks_count(fs->super)) {
+ fprintf(stderr, _("The filesystem is already %llu blocks "
+ "long. Nothing to do!\n\n"), new_size);
+ exit(0);
+ }
+ if (mount_flags & EXT2_MF_MOUNTED) {
+ bigalloc_check(fs, force);
+ retval = online_resize_fs(fs, mtpt, &new_size, flags);
+ } else {
+ if (!force && ((fs->super->s_lastcheck < fs->super->s_mtime) ||
+ (fs->super->s_state & EXT2_ERROR_FS) ||
+ ((fs->super->s_state & EXT2_VALID_FS) == 0))) {
+ fprintf(stderr,
+ _("Please run 'e2fsck -f %s' first.\n\n"),
+ device_name);
+ exit(1);
+ }
+ bigalloc_check(fs, force);
+ printf(_("Resizing the filesystem on "
+ "%s to %llu (%dk) blocks.\n"),
+ device_name, new_size, fs->blocksize / 1024);
+ retval = resize_fs(fs, &new_size, flags,
+ ((flags & RESIZE_PERCENT_COMPLETE) ?
+ resize_progress_func : 0));
+ }
+ free(mtpt);
+ if (retval) {
+ com_err(program_name, retval, _("while trying to resize %s"),
+ device_name);
+ fprintf(stderr,
+ _("Please run 'e2fsck -fy %s' to fix the filesystem\n"
+ "after the aborted resize operation.\n"),
+ device_name);
+ ext2fs_close(fs);
+ exit(1);
+ }
+ printf(_("The filesystem on %s is now %llu blocks long.\n\n"),
+ device_name, new_size);
+
+ if ((st_buf.st_size > new_file_size) &&
+ (fd > 0)) {
+#ifdef HAVE_FTRUNCATE64
+ retval = ftruncate64(fd, new_file_size);
+#else
+ retval = 0;
+ /* Only truncate if new_file_size doesn't overflow off_t */
+ if (((off_t) new_file_size) == new_file_size)
+ retval = ftruncate(fd, (off_t) new_file_size);
+#endif
+ if (retval)
+ com_err(program_name, retval,
+ _("while trying to truncate %s"),
+ device_name);
+ }
+ if (fd > 0)
+ close(fd);
+ remove_error_table(&et_ext2_error_table);
+ return (0);
+}