This patch adds 64bit-resize support to e2fsprogs.
Signed-off-by: Yongqiang Yang <xiaoqiangnk@xxxxxxxxx>
---
lib/ext2fs/ext2_fs.h | 1 +
resize/online.c | 22 +++++++++++++++++++++-
2 files changed, 22 insertions(+), 1 deletions(-)
diff --git a/lib/ext2fs/ext2_fs.h b/lib/ext2fs/ext2_fs.h
index 54cb3d4..4fec5db 100644
--- a/lib/ext2fs/ext2_fs.h
+++ b/lib/ext2fs/ext2_fs.h
@@ -327,6 +327,7 @@ struct ext4_new_group_input {
#define EXT2_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)
#define EXT2_IOC_GROUP_ADD _IOW('f', 8,struct ext2_new_group_input)
#define EXT4_IOC_GROUP_ADD _IOW('f', 8,struct ext4_new_group_input)
+#define EXT4_IOC_RESIZE_FS _IOW('f', 16, __u64)
/*
* Structure of an inode on the disk
diff --git a/resize/online.c b/resize/online.c
index 1d8d4ec..53ad852 100644
--- a/resize/online.c
+++ b/resize/online.c
@@ -51,7 +51,7 @@ errcode_t online_resize_fs(ext2_filsys fs, const char *mtpt,
fs->super->s_first_data_block,
EXT2_BLOCKS_PER_GROUP(fs->super)),
EXT2_DESC_PER_BLOCK(fs->super));
- printf("old desc_blocks = %lu, new_desc_blocks = %lu\n",
+ printf("old_desc_blocks = %lu, new_desc_blocks = %lu\n",
fs->desc_blocks, new_desc_blocks);
if (!(fs->super->s_feature_compat &
EXT2_FEATURE_COMPAT_RESIZE_INODE) &&
@@ -69,6 +69,26 @@ errcode_t online_resize_fs(ext2_filsys fs, const char *mtpt,
}
size=ext2fs_blocks_count(sb);
+
+ if (ioctl(fd, EXT4_IOC_RESIZE_FS, new_size)) {
+ if (errno == ENOTTY) {
+ printf("Kernel does not support 64bit-online resizing, "
+ "tring the old style online resizing\n");
+ } else {
+ if (errno == EPERM)
+ com_err(program_name, 0,
+ _("Permission denied to resize filesystem"));
+ else
+ com_err(program_name, errno,
+ _("While checking for on-line resizing "
+ "support"));
+ exit(1);
+ }
+ } else {
+ close(fd);
+ return 0;
+ }
+
if (ioctl(fd, EXT2_IOC_GROUP_EXTEND, &size)) {
if (errno == EPERM)
com_err(program_name, 0,
--
1.7.5.1
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