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[ext2fs] improve formatting speed

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* Fix use of EXT2_BLOCK_SIZE() instead of EXT2_INODE_SIZE() during inode
  initialization, that made us zero way many more blocks than was needed.
* Also disable sparse_super feature and improve block setup.
* Also explicitly use IS_POWER_OF_2 macro where required.
This commit is contained in:
Pete Batard 2020-02-11 19:22:22 +00:00
parent 35af4cbacb
commit 9edd7492db
No known key found for this signature in database
GPG key ID: 38E0CF5E69EDD671
4 changed files with 22 additions and 19 deletions
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3
src/format.c
View file

@ -641,8 +641,7 @@ out:
static BOOL FormatPartition(DWORD DriveIndex, uint64_t PartitionOffset, DWORD UnitAllocationSize, USHORT FSType, LPCSTR Label, DWORD Flags)
{
if ((DriveIndex < 0x80) || (DriveIndex > 0x100) || (FSType >= FS_MAX) ||
// The following validates that UnitAllocationSize is a power of 2
((UnitAllocationSize != 0) && (UnitAllocationSize & (UnitAllocationSize - 1)))) {
((UnitAllocationSize != 0) && (!IS_POWER_OF_2(UnitAllocationSize)))) {
ERROR_SEVERITY_ERROR | FAC(FACILITY_STORAGE) | ERROR_INVALID_PARAMETER;
return FALSE;
}

25
src/format_ext.c
View file

@ -218,15 +218,18 @@ const char* GetExtFsLabel(DWORD DriveIndex, uint64_t PartitionOffset)
return (r == 0) ? label : NULL;
}
#define TEST_IMG_PATH "\\??\\C:\\tmp\\disk.img"
#define TEST_IMG_SIZE 4000 // Size in MB
BOOL FormatExtFs(DWORD DriveIndex, uint64_t PartitionOffset, DWORD BlockSize, LPCSTR FSName, LPCSTR Label, DWORD Flags)
{
// Mostly taken from mke2fs.conf
const float reserve_ratio = 0.05f;
const ext2fs_default_t ext2fs_default[5] = {
{ 3 * MB, 1024, 128, 3}, // "floppy"
{ 3 * MB, 1024, 128, 3}, // "floppy"
{ 512 * MB, 1024, 128, 2}, // "small"
{ 4 * GB, 4096, 256, 2}, // "default"
{ 16 * GB, 4096, 256, 3}, // "big"
{ 4 * GB, 4096, 256, 2}, // "default"
{ 16 * GB, 4096, 256, 3}, // "big"
{ 1024 * TB, 4096, 256, 4} // "huge"
};
@ -298,15 +301,16 @@ BOOL FormatExtFs(DWORD DriveIndex, uint64_t PartitionOffset, DWORD BlockSize, LP
break;
}
assert(i < ARRAYSIZE(ext2fs_default));
// NB: We validated that BlockSize is a power of two in FormatPartition()
if (BlockSize == 0)
if ((BlockSize == 0) || (BlockSize < EXT2_MIN_BLOCK_SIZE))
BlockSize = ext2fs_default[i].block_size;
size /= BlockSize;
assert(IS_POWER_OF_2(BlockSize));
for (features.s_log_block_size = 0; EXT2_BLOCK_SIZE_BITS(&features) <= EXT2_MAX_BLOCK_LOG_SIZE; features.s_log_block_size++) {
if (EXT2_BLOCK_SIZE(&features) == BlockSize)
break;
}
assert(EXT2_BLOCK_SIZE_BITS(&features) <= EXT2_MAX_BLOCK_LOG_SIZE);
features.s_log_cluster_size = features.s_log_block_size;
size /= BlockSize;
// Set the blocks, reserved blocks and inodes
ext2fs_blocks_count_set(&features, size);
@ -320,10 +324,10 @@ BOOL FormatExtFs(DWORD DriveIndex, uint64_t PartitionOffset, DWORD BlockSize, LP
// Set features
ext2fs_set_feature_xattr(&features);
// ext2fs_set_feature_resize_inode(&features);
// ext2fs_set_feature_resize_inode(&features);
ext2fs_set_feature_dir_index(&features);
ext2fs_set_feature_filetype(&features);
ext2fs_set_feature_sparse_super(&features);
// ext2fs_set_feature_sparse_super(&features);
ext2fs_set_feature_large_file(&features);
if (FSName[3] != '2')
ext2fs_set_feature_journal(&features);
@ -372,6 +376,8 @@ BOOL FormatExtFs(DWORD DriveIndex, uint64_t PartitionOffset, DWORD BlockSize, LP
goto out;
}
// TODO: mke2fs appears to be zeroing some data at the end of the partition as well
ext2_percent_start = 0.0f;
ext2_percent_share = (FSName[3] == '2') ? 1.0f : 0.5f;
uprintf("Creating %d inode sets: [1 marker = %0.1f set(s)]", ext2fs->group_desc_count,
@ -381,7 +387,7 @@ BOOL FormatExtFs(DWORD DriveIndex, uint64_t PartitionOffset, DWORD BlockSize, LP
goto out;
cur = ext2fs_inode_table_loc(ext2fs, i);
count = ext2fs_div_ceil((ext2fs->super->s_inodes_per_group - ext2fs_bg_itable_unused(ext2fs, i))
* EXT2_BLOCK_SIZE(ext2fs->super), EXT2_BLOCK_SIZE(ext2fs->super));
* EXT2_INODE_SIZE(ext2fs->super), EXT2_BLOCK_SIZE(ext2fs->super));
r = ext2fs_zero_blocks2(ext2fs, cur, count, &cur, &count);
if (r != 0) {
FormatStatus = ext2_last_winerror(ERROR_WRITE_FAULT);
@ -488,4 +494,3 @@ out:
free(buf);
return ret;
}

3
src/rufus.h
View file

@ -111,6 +111,7 @@
#define WPPRECORDER_MORE_INFO_URL "https://github.com/pbatard/rufus/wiki/FAQ#BSODs_with_Windows_To_Go_drives_created_from_Windows_10_1809_ISOs"
#define SEVENZIP_URL "https://www.7-zip.org"
#define FILES_DIR "rufus_files"
#define IS_POWER_OF_2(x) ((x != 0) && (((x) & ((x) - 1)) == 0))
#define IGNORE_RETVAL(expr) do { (void)(expr); } while(0)
#ifndef ARRAYSIZE
#define ARRAYSIZE(A) (sizeof(A)/sizeof((A)[0]))
@ -124,8 +125,6 @@
// Bit masks used for the display of additional image options in the UI
#define IMOP_WINTOGO 0x01
#define IMOP_PERSISTENCE 0x02
#define TEST_IMG_PATH "\\??\\C:\\tmp\\disk.img"
#define TEST_IMG_SIZE 4500 // Size in MB
#define safe_free(p) do {free((void*)p); p = NULL;} while(0)
#define safe_mm_free(p) do {_mm_free((void*)p); p = NULL;} while(0)

10
src/rufus.rc
View file

@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
IDD_DIALOG DIALOGEX 12, 12, 232, 326
STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
EXSTYLE WS_EX_ACCEPTFILES
CAPTION "Rufus 3.9.1604"
CAPTION "Rufus 3.9.1605"
FONT 9, "Segoe UI Symbol", 400, 0, 0x0
BEGIN
LTEXT "Drive Properties",IDS_DRIVE_PROPERTIES_TXT,8,6,53,12,NOT WS_GROUP
@ -394,8 +394,8 @@ END
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION 3,9,1604,0
PRODUCTVERSION 3,9,1604,0
FILEVERSION 3,9,1605,0
PRODUCTVERSION 3,9,1605,0
FILEFLAGSMASK 0x3fL
#ifdef _DEBUG
FILEFLAGS 0x1L
@ -413,13 +413,13 @@ BEGIN
VALUE "Comments", "https://rufus.ie"
VALUE "CompanyName", "Akeo Consulting"
VALUE "FileDescription", "Rufus"
VALUE "FileVersion", "3.9.1604"
VALUE "FileVersion", "3.9.1605"
VALUE "InternalName", "Rufus"
VALUE "LegalCopyright", "© 2011-2020 Pete Batard (GPL v3)"
VALUE "LegalTrademarks", "https://www.gnu.org/licenses/gpl-3.0.html"
VALUE "OriginalFilename", "rufus-3.9.exe"
VALUE "ProductName", "Rufus"
VALUE "ProductVersion", "3.9.1604"
VALUE "ProductVersion", "3.9.1605"
END
END
BLOCK "VarFileInfo"