From 7659ab26e10cd49dade500285e04887783fdc72f Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Mon, 24 Aug 2009 05:00:12 +0000 Subject: [PATCH] And the missing patch... --- e2fsprogs-1.41.9-defrag.patch | 2362 +++++++++++++++++++++++++++++++++ 1 file changed, 2362 insertions(+) create mode 100644 e2fsprogs-1.41.9-defrag.patch diff --git a/e2fsprogs-1.41.9-defrag.patch b/e2fsprogs-1.41.9-defrag.patch new file mode 100644 index 0000000..0c7595b --- /dev/null +++ b/e2fsprogs-1.41.9-defrag.patch @@ -0,0 +1,2362 @@ +Index: e2fsprogs-1.41.9/misc/e4defrag.8.in +=================================================================== +--- /dev/null ++++ e2fsprogs-1.41.9/misc/e4defrag.8.in +@@ -0,0 +1,76 @@ ++.TH E4DEFRAG 8 "May 2009" "e4defrag version 2.0" ++.SH NAME ++e4defrag \- online defragmenter for ext4 filesystem ++.SH SYNOPSIS ++.B e4defrag ++[ ++.B \-c ++] ++[ ++.B \-v ++] ++.I target ++\&... ++.SH DESCRIPTION ++.B e4defrag ++reduces fragmentation of extent based file. The file targeted by ++.B e4defrag ++is created on ext4 filesystem made with "-O extent" option (see ++.BR mke2fs (8)). ++The targeted file gets more contiguous blocks and improves the file access ++speed. ++.PP ++.I target ++is a regular file, a directory, or a device that is mounted as ext4 filesystem. ++If ++.I target ++is a directory, ++.B e4defrag ++reduces fragmentation of all files in it. If ++.I target ++is a device, ++.B e4defrag ++gets the mount point of it and reduces fragmentation of all files in this mount ++point. ++.SH OPTIONS ++.TP ++.B \-c ++Get the fragmentation count and calculate fragmentation score based on it ++before and after defrag. By seeing this score, we can determine whether we ++should execute ++.B e4defrag ++to ++.IR target . ++When used with ++.B \-v ++option, the fragmentation count before and after defrag is printed for each ++file. ++.IP ++If this option is specified, ++.I target ++is never defragmented. ++.TP ++.B \-v ++Print error messages and the fragmentation count before and after defrag for ++each file. ++.SH NOTES ++.B e4defrag ++does not support swap file, files in lost+found directory, and files allocated ++in indirect blocks. When ++.I target ++is a device or a mount point, ++.B e4defrag ++doesn't defragment files in mount point of other device. ++.PP ++Non-privileged users can execute ++.B e4defrag ++to their own file, but the score is not printed if ++.B \-c ++option is specified. Therefore, it is desirable to be executed by root user. ++.SH AUTHOR ++Written by Akira Fujita and Takashi Sato ++. ++.SH SEE ALSO ++.BR mke2fs (8), ++.BR mount (8). ++ +Index: e2fsprogs-1.41.9/misc/e4defrag.c +=================================================================== +--- /dev/null ++++ e2fsprogs-1.41.9/misc/e4defrag.c +@@ -0,0 +1,2153 @@ ++/* ++ * e4defrag.c - ext4 filesystem defragmenter ++ * ++ * Copyright (C) 2009 NEC Software Tohoku, Ltd. ++ * ++ * Author: Akira Fujita ++ * Takashi Sato ++ */ ++ ++#ifndef _LARGEFILE_SOURCE ++#define _LARGEFILE_SOURCE ++#endif ++ ++#ifndef _LARGEFILE64_SOURCE ++#define _LARGEFILE64_SOURCE ++#endif ++ ++#ifndef _GNU_SOURCE ++#define _GNU_SOURCE ++#endif ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++/* A relatively new ioctl interface ... */ ++#ifndef EXT4_IOC_MOVE_EXT ++#define EXT4_IOC_MOVE_EXT _IOWR('f', 15, struct move_extent) ++#endif ++ ++/* Macro functions */ ++#define PRINT_ERR_MSG(msg) fprintf(stderr, "%s\n", (msg)) ++#define IN_FTW_PRINT_ERR_MSG(msg) \ ++ fprintf(stderr, "\t%s\t\t[ NG ]\n", (msg)) ++#define PRINT_FILE_NAME(file) fprintf(stderr, " \"%s\"\n", (file)) ++#define PRINT_ERR_MSG_WITH_ERRNO(msg) \ ++ fprintf(stderr, "\t%s:%s\t[ NG ]\n", (msg), strerror(errno)) ++#define STATISTIC_ERR_MSG(msg) \ ++ fprintf(stderr, "\t%s\n", (msg)) ++#define STATISTIC_ERR_MSG_WITH_ERRNO(msg) \ ++ fprintf(stderr, "\t%s:%s\n", (msg), strerror(errno)) ++#define min(x, y) (((x) > (y)) ? (y) : (x)) ++#define SECTOR_TO_BLOCK(sectors, blocksize) \ ++ ((sectors) / ((blocksize) >> 9)) ++#define CALC_SCORE(ratio) \ ++ ((ratio) > 10 ? (80 + 20 * (ratio) / 100) : (8 * (ratio))) ++/* Wrap up the free function */ ++#define FREE(tmp) \ ++ do { \ ++ if ((tmp) != NULL) \ ++ free(tmp); \ ++ } while (0) \ ++/* Insert list2 after list1 */ ++#define insert(list1, list2) \ ++ do { \ ++ list2->next = list1->next; \ ++ list1->next->prev = list2; \ ++ list2->prev = list1; \ ++ list1->next = list2; \ ++ } while (0) ++ ++/* To delete unused warning */ ++#ifdef __GNUC__ ++#define EXT2FS_ATTR(x) __attribute__(x) ++#else ++#define EXT2FS_ATTR(x) ++#endif ++ ++/* The mode of defrag */ ++#define DETAIL 0x01 ++#define STATISTIC 0x02 ++ ++#define DEVNAME 0 ++#define DIRNAME 1 ++#define FILENAME 2 ++ ++#define FTW_OPEN_FD 2000 ++ ++#define FS_EXT4 "ext4" ++#define ROOT_UID 0 ++ ++#define BOUND_SCORE 55 ++#define SHOW_FRAG_FILES 5 ++ ++/* Magic number for ext4 */ ++#define EXT4_SUPER_MAGIC 0xEF53 ++ ++/* Definition of flex_bg */ ++#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200 ++ ++/* The following macro is used for ioctl FS_IOC_FIEMAP ++ * EXTENT_MAX_COUNT: the maximum number of extents for exchanging between ++ * kernel-space and user-space per ioctl ++ */ ++#define EXTENT_MAX_COUNT 512 ++ ++/* The following macros are error message */ ++#define MSG_USAGE \ ++"Usage : e4defrag [-v] file...| directory...| device...\n\ ++ : e4defrag -c file...| directory...| device...\n" ++ ++#define NGMSG_EXT4 "Filesystem is not ext4 filesystem" ++#define NGMSG_FILE_EXTENT "Failed to get file extents" ++#define NGMSG_FILE_INFO "Failed to get file information" ++#define NGMSG_FILE_OPEN "Failed to open" ++#define NGMSG_FILE_UNREG "File is not regular file" ++#define NGMSG_LOST_FOUND "Can not process \"lost+found\"" ++ ++/* Data type for filesystem-wide blocks number */ ++typedef unsigned long long ext4_fsblk_t; ++ ++struct fiemap_extent_data { ++ __u64 len; /* blocks count */ ++ __u64 logical; /* start logical block number */ ++ ext4_fsblk_t physical; /* start physical block number */ ++}; ++ ++struct fiemap_extent_list { ++ struct fiemap_extent_list *prev; ++ struct fiemap_extent_list *next; ++ struct fiemap_extent_data data; /* extent belong to file */ ++}; ++ ++struct fiemap_extent_group { ++ struct fiemap_extent_group *prev; ++ struct fiemap_extent_group *next; ++ __u64 len; /* length of this continuous region */ ++ struct fiemap_extent_list *start; /* start ext */ ++ struct fiemap_extent_list *end; /* end ext */ ++}; ++ ++struct move_extent { ++ __s32 reserved; /* original file descriptor */ ++ __u32 donor_fd; /* donor file descriptor */ ++ __u64 orig_start; /* logical start offset in block for orig */ ++ __u64 donor_start; /* logical start offset in block for donor */ ++ __u64 len; /* block length to be moved */ ++ __u64 moved_len; /* moved block length */ ++}; ++ ++struct frag_statistic_ino { ++ int now_count; /* the file's extents count of before defrag */ ++ int best_count; /* the best file's extents count */ ++ float ratio; /* the ratio of fragmentation */ ++ char msg_buffer[PATH_MAX + 1]; /* pathname of the file */ ++}; ++ ++typedef __u16 __le16; ++typedef __u32 __le32; ++typedef __u64 __le64; ++ ++/* ++ * Structure of the super block ++ */ ++struct ext4_super_block { ++/*00*/ __le32 s_inodes_count; /* Inodes count */ ++ __le32 s_blocks_count_lo; /* Blocks count */ ++ __le32 s_r_blocks_count_lo; /* Reserved blocks count */ ++ __le32 s_free_blocks_count_lo; /* Free blocks count */ ++/*10*/ __le32 s_free_inodes_count; /* Free inodes count */ ++ __le32 s_first_data_block; /* First Data Block */ ++ __le32 s_log_block_size; /* Block size */ ++ __le32 s_obso_log_frag_size; /* Obsoleted fragment size */ ++/*20*/ __le32 s_blocks_per_group; /* # Blocks per group */ ++ __le32 s_obso_frags_per_group; /* Obsoleted fragments per group */ ++ __le32 s_inodes_per_group; /* # Inodes per group */ ++ __le32 s_mtime; /* Mount time */ ++/*30*/ __le32 s_wtime; /* Write time */ ++ __le16 s_mnt_count; /* Mount count */ ++ __le16 s_max_mnt_count; /* Maximal mount count */ ++ __le16 s_magic; /* Magic signature */ ++ __le16 s_state; /* File system state */ ++ __le16 s_errors; /* Behaviour when detecting errors */ ++ __le16 s_minor_rev_level; /* minor revision level */ ++/*40*/ __le32 s_lastcheck; /* time of last check */ ++ __le32 s_checkinterval; /* max. time between checks */ ++ __le32 s_creator_os; /* OS */ ++ __le32 s_rev_level; /* Revision level */ ++/*50*/ __le16 s_def_resuid; /* Default uid for reserved blocks */ ++ __le16 s_def_resgid; /* Default gid for reserved blocks */ ++ /* ++ * These fields are for EXT4_DYNAMIC_REV superblocks only. ++ * ++ * Note: the difference between the compatible feature set and ++ * the incompatible feature set is that if there is a bit set ++ * in the incompatible feature set that the kernel doesn't ++ * know about, it should refuse to mount the filesystem. ++ * ++ * e2fsck's requirements are more strict; if it doesn't know ++ * about a feature in either the compatible or incompatible ++ * feature set, it must abort and not try to meddle with ++ * things it doesn't understand... ++ */ ++ __le32 s_first_ino; /* First non-reserved inode */ ++ __le16 s_inode_size; /* size of inode structure */ ++ __le16 s_block_group_nr; /* block group # of this superblock */ ++ __le32 s_feature_compat; /* compatible feature set */ ++/*60*/ __le32 s_feature_incompat; /* incompatible feature set */ ++ __le32 s_feature_ro_compat; /* readonly-compatible feature set */ ++/*68*/ __u8 s_uuid[16]; /* 128-bit uuid for volume */ ++/*78*/ char s_volume_name[16]; /* volume name */ ++/*88*/ char s_last_mounted[64]; /* directory where last mounted */ ++/*C8*/ __le32 s_algorithm_usage_bitmap; /* For compression */ ++ /* ++ * Performance hints. Directory preallocation should only ++ * happen if the EXT4_FEATURE_COMPAT_DIR_PREALLOC flag is on. ++ */ ++ __u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate*/ ++ __u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */ ++ __le16 s_reserved_gdt_blocks; /* Per group desc for online growth */ ++ /* ++ * Journaling support valid if EXT4_FEATURE_COMPAT_HAS_JOURNAL set. ++ */ ++/*D0*/ __u8 s_journal_uuid[16]; /* uuid of journal superblock */ ++/*E0*/ __le32 s_journal_inum; /* inode number of journal file */ ++ __le32 s_journal_dev; /* device number of journal file */ ++ __le32 s_last_orphan; /* start of list of inodes to delete */ ++ __le32 s_hash_seed[4]; /* HTREE hash seed */ ++ __u8 s_def_hash_version; /* Default hash version to use */ ++ __u8 s_reserved_char_pad; ++ __le16 s_desc_size; /* size of group descriptor */ ++/*100*/ __le32 s_default_mount_opts; ++ __le32 s_first_meta_bg; /* First metablock block group */ ++ __le32 s_mkfs_time; /* When the filesystem was created */ ++ __le32 s_jnl_blocks[17]; /* Backup of the journal inode */ ++ /* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */ ++/*150*/ __le32 s_blocks_count_hi; /* Blocks count */ ++ __le32 s_r_blocks_count_hi; /* Reserved blocks count */ ++ __le32 s_free_blocks_count_hi; /* Free blocks count */ ++ __le16 s_min_extra_isize; /* All inodes have at least # bytes */ ++ __le16 s_want_extra_isize; /* New inodes should reserve # bytes */ ++ __le32 s_flags; /* Miscellaneous flags */ ++ __le16 s_raid_stride; /* RAID stride */ ++ __le16 s_mmp_interval; /* # seconds to wait in MMP checking */ ++ __le64 s_mmp_block; /* Block for multi-mount protection */ ++ __le32 s_raid_stripe_width; /* blocks on all data disks (N*stride)*/ ++ __u8 s_log_groups_per_flex; /* FLEX_BG group size */ ++ __u8 s_reserved_char_pad2; ++ __le16 s_reserved_pad; ++ __u32 s_reserved[162]; /* Padding to the end of the block */ ++}; ++ ++char lost_found_dir[PATH_MAX + 1]; ++int block_size; ++int extents_before_defrag; ++int extents_after_defrag; ++int mode_flag; ++unsigned int current_uid; ++unsigned int defraged_file_count; ++unsigned int frag_files_before_defrag; ++unsigned int frag_files_after_defrag; ++unsigned int regular_count; ++unsigned int succeed_cnt; ++unsigned int total_count; ++__u8 log_groups_per_flex; ++__le32 blocks_per_group; ++__le32 feature_incompat; ++ext4_fsblk_t files_block_count; ++struct frag_statistic_ino frag_rank[SHOW_FRAG_FILES]; ++ ++ ++/* Local definitions of some syscalls glibc may not yet have */ ++ ++#ifndef HAVE_POSIX_FADVISE ++#warning Using locally defined posix_fadvise interface. ++ ++#ifndef __NR_fadvise64_64 ++#error Your kernel headers dont define __NR_fadvise64_64 ++#endif ++ ++/* ++ * fadvise() - Give advice about file access. ++ * ++ * @fd: defrag target file's descriptor. ++ * @offset: file offset. ++ * @len: area length. ++ * @advise: process flag. ++ */ ++static int posix_fadvise(int fd, loff_t offset, size_t len, int advise) ++{ ++ return syscall(__NR_fadvise64_64, fd, offset, len, advise); ++} ++#endif /* ! HAVE_FADVISE64_64 */ ++ ++#ifndef HAVE_SYNC_FILE_RANGE ++#warning Using locally defined sync_file_range interface. ++ ++#ifndef __NR_sync_file_range ++#ifndef __NR_sync_file_range2 /* ppc */ ++#error Your kernel headers dont define __NR_sync_file_range ++#endif ++#endif ++ ++/* ++ * sync_file_range() - Sync file region. ++ * ++ * @fd: defrag target file's descriptor. ++ * @offset: file offset. ++ * @length: area length. ++ * @flag: process flag. ++ */ ++int sync_file_range(int fd, loff_t offset, loff_t length, unsigned int flag) ++{ ++#ifdef __NR_sync_file_range ++ return syscall(__NR_sync_file_range, fd, offset, length, flag); ++#else ++ return syscall(__NR_sync_file_range2, fd, flag, offset, length); ++#endif ++} ++#endif /* ! HAVE_SYNC_FILE_RANGE */ ++ ++#ifndef HAVE_FALLOCATE ++#warning Using locally defined fallocate syscall interface. ++ ++#ifndef __NR_fallocate ++#error Your kernel headers dont define __NR_fallocate ++#endif ++ ++/* ++ * fallocate() - Manipulate file space. ++ * ++ * @fd: defrag target file's descriptor. ++ * @mode: process flag. ++ * @offset: file offset. ++ * @len: file size. ++ */ ++static int fallocate(int fd, int mode, loff_t offset, loff_t len) ++{ ++ return syscall(__NR_fallocate, fd, mode, offset, len); ++} ++#endif /* ! HAVE_FALLOCATE */ ++ ++/* ++ * get_mount_point() - Get device's mount point. ++ * ++ * @devname: the device's name. ++ * @mount_point: the mount point. ++ * @dir_path_len: the length of directory. ++ */ ++static int get_mount_point(const char *devname, char *mount_point, ++ int dir_path_len) ++{ ++ /* Refer to /etc/mtab */ ++ const char *mtab = MOUNTED; ++ FILE *fp = NULL; ++ struct mntent *mnt = NULL; ++ ++ fp = setmntent(mtab, "r"); ++ if (fp == NULL) { ++ perror("Couldn't access /etc/mtab"); ++ return -1; ++ } ++ ++ while ((mnt = getmntent(fp)) != NULL) { ++ if (strcmp(devname, mnt->mnt_fsname) != 0) ++ continue; ++ ++ endmntent(fp); ++ if (strcmp(mnt->mnt_type, FS_EXT4) == 0) { ++ strncpy(mount_point, mnt->mnt_dir, ++ dir_path_len); ++ return 0; ++ } ++ PRINT_ERR_MSG(NGMSG_EXT4); ++ return -1; ++ } ++ endmntent(fp); ++ PRINT_ERR_MSG("Filesystem is not mounted"); ++ return -1; ++} ++ ++/* ++ * is_ext4() - Whether on an ext4 filesystem. ++ * ++ * @file: the file's name. ++ */ ++static int is_ext4(const char *file) ++{ ++ int maxlen = 0; ++ int len, ret; ++ FILE *fp = NULL; ++ char *mnt_type = NULL; ++ /* Refer to /etc/mtab */ ++ const char *mtab = MOUNTED; ++ char file_path[PATH_MAX + 1]; ++ struct mntent *mnt = NULL; ++ struct statfs64 fsbuf; ++ ++ /* Get full path */ ++ if (realpath(file, file_path) == NULL) { ++ perror("Couldn't get full path"); ++ PRINT_FILE_NAME(file); ++ return -1; ++ } ++ ++ if (statfs64(file_path, &fsbuf) < 0) { ++ perror("Failed to get filesystem information"); ++ PRINT_FILE_NAME(file); ++ return -1; ++ } ++ ++ if (fsbuf.f_type != EXT4_SUPER_MAGIC) { ++ PRINT_ERR_MSG(NGMSG_EXT4); ++ return -1; ++ } ++ ++ fp = setmntent(mtab, "r"); ++ if (fp == NULL) { ++ perror("Couldn't access /etc/mtab"); ++ return -1; ++ } ++ ++ while ((mnt = getmntent(fp)) != NULL) { ++ len = strlen(mnt->mnt_dir); ++ ret = memcmp(file_path, mnt->mnt_dir, len); ++ if (ret != 0) ++ continue; ++ ++ if (maxlen >= len) ++ continue; ++ ++ maxlen = len; ++ ++ mnt_type = realloc(mnt_type, strlen(mnt->mnt_type) + 1); ++ if (mnt_type == NULL) { ++ endmntent(fp); ++ return -1; ++ } ++ memset(mnt_type, 0, strlen(mnt->mnt_type) + 1); ++ strncpy(mnt_type, mnt->mnt_type, strlen(mnt->mnt_type)); ++ strncpy(lost_found_dir, mnt->mnt_dir, PATH_MAX); ++ } ++ ++ endmntent(fp); ++ if (strcmp(mnt_type, FS_EXT4) == 0) { ++ FREE(mnt_type); ++ return 0; ++ } else { ++ FREE(mnt_type); ++ PRINT_ERR_MSG(NGMSG_EXT4); ++ return -1; ++ } ++} ++ ++/* ++ * calc_entry_counts() - Calculate file counts. ++ * ++ * @file: file name. ++ * @buf: file info. ++ * @flag: file type. ++ * @ftwbuf: the pointer of a struct FTW. ++ */ ++static int calc_entry_counts(const char *file EXT2FS_ATTR((unused)), ++ const struct stat64 *buf, int flag EXT2FS_ATTR((unused)), ++ struct FTW *ftwbuf EXT2FS_ATTR((unused))) ++{ ++ if (S_ISREG(buf->st_mode)) ++ regular_count++; ++ ++ total_count++; ++ ++ return 0; ++} ++ ++/* ++ * page_in_core() - Get information on whether pages are in core. ++ * ++ * @fd: defrag target file's descriptor. ++ * @defrag_data: data used for defrag. ++ * @vec: page state array. ++ * @page_num: page number. ++ */ ++static int page_in_core(int fd, struct move_extent defrag_data, ++ unsigned char **vec, unsigned int *page_num) ++{ ++ long pagesize = sysconf(_SC_PAGESIZE); ++ void *page = NULL; ++ loff_t offset, end_offset, length; ++ ++ if (vec == NULL || *vec != NULL) ++ return -1; ++ ++ /* In mmap, offset should be a multiple of the page size */ ++ offset = (loff_t)defrag_data.orig_start * block_size; ++ length = (loff_t)defrag_data.len * block_size; ++ end_offset = offset + length; ++ /* Round the offset down to the nearest multiple of pagesize */ ++ offset = (offset / pagesize) * pagesize; ++ length = end_offset - offset; ++ ++ page = mmap(NULL, length, PROT_READ, MAP_SHARED, fd, offset); ++ if (page == MAP_FAILED) ++ return -1; ++ ++ *page_num = 0; ++ *page_num = (length + pagesize - 1) / pagesize; ++ *vec = (unsigned char *)calloc(*page_num, 1); ++ if (*vec == NULL) ++ return -1; ++ ++ /* Get information on whether pages are in core */ ++ if (mincore(page, (size_t)length, *vec) == -1 || ++ munmap(page, length) == -1) { ++ FREE(*vec); ++ return -1; ++ } ++ ++ return 0; ++} ++ ++/* ++ * defrag_fadvise() - Predeclare an access pattern for file data. ++ * ++ * @fd: defrag target file's descriptor. ++ * @defrag_data: data used for defrag. ++ * @vec: page state array. ++ * @page_num: page number. ++ */ ++static int defrag_fadvise(int fd, struct move_extent defrag_data, ++ unsigned char *vec, unsigned int page_num) ++{ ++ int flag = 1; ++ long pagesize = sysconf(_SC_PAGESIZE); ++ int fadvise_flag = POSIX_FADV_DONTNEED; ++ int sync_flag = SYNC_FILE_RANGE_WAIT_BEFORE | ++ SYNC_FILE_RANGE_WRITE | ++ SYNC_FILE_RANGE_WAIT_AFTER; ++ unsigned int i; ++ loff_t offset; ++ ++ offset = (loff_t)defrag_data.orig_start * block_size; ++ offset = (offset / pagesize) * pagesize; ++ ++ /* Sync file for fadvise process */ ++ if (sync_file_range(fd, offset, ++ (loff_t)pagesize * page_num, sync_flag) < 0) ++ return -1; ++ ++ /* Try to release buffer cache which this process used, ++ * then other process can use the released buffer ++ */ ++ for (i = 0; i < page_num; i++) { ++ if ((vec[i] & 0x1) == 0) { ++ offset += pagesize; ++ continue; ++ } ++ if (posix_fadvise(fd, offset, pagesize, fadvise_flag) < 0) { ++ if ((mode_flag & DETAIL) && flag) { ++ perror("\tFailed to fadvise"); ++ flag = 0; ++ } ++ } ++ offset += pagesize; ++ } ++ ++ return 0; ++} ++ ++/* ++ * check_free_size() - Check if there's enough disk space. ++ * ++ * @fd: defrag target file's descriptor. ++ * @file: file name. ++ * @buf: the pointer of the struct stat64. ++ */ ++static int check_free_size(int fd, const char *file, const struct stat64 *buf) ++{ ++ ext4_fsblk_t blk_count; ++ ext4_fsblk_t free_blk_count; ++ struct statfs64 fsbuf; ++ ++ if (fstatfs64(fd, &fsbuf) < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO( ++ "Failed to get filesystem information"); ++ } ++ return -1; ++ } ++ ++ /* Target file size measured by filesystem IO blocksize */ ++ blk_count = SECTOR_TO_BLOCK(buf->st_blocks, fsbuf.f_bsize); ++ ++ /* Compute free space for root and normal user separately */ ++ if (current_uid == ROOT_UID) ++ free_blk_count = fsbuf.f_bfree; ++ else ++ free_blk_count = fsbuf.f_bavail; ++ ++ if (free_blk_count >= blk_count) ++ return 0; ++ ++ return -ENOSPC; ++} ++ ++/* ++ * file_frag_count() - Get file fragment count. ++ * ++ * @fd: defrag target file's descriptor. ++ */ ++static int file_frag_count(int fd) ++{ ++ int ret; ++ struct fiemap fiemap_buf; ++ ++ /* When fm_extent_count is 0, ++ * ioctl just get file fragment count. ++ */ ++ memset(&fiemap_buf, 0, sizeof(struct fiemap)); ++ fiemap_buf.fm_start = 0; ++ fiemap_buf.fm_length = FIEMAP_MAX_OFFSET; ++ fiemap_buf.fm_flags |= FIEMAP_FLAG_SYNC; ++ ++ ret = ioctl(fd, FS_IOC_FIEMAP, &fiemap_buf); ++ if (ret < 0) ++ return ret; ++ ++ return fiemap_buf.fm_mapped_extents; ++} ++ ++/* ++ * file_check() - Check file's attributes. ++ * ++ * @fd: defrag target file's descriptor. ++ * @buf: a pointer of the struct stat64. ++ * @file: the file's name. ++ * @extents: the file's extents. ++ */ ++static int file_check(int fd, const struct stat64 *buf, const char *file, ++ int extents) ++{ ++ int ret; ++ struct flock lock; ++ ++ /* Write-lock check is more reliable */ ++ lock.l_type = F_WRLCK; ++ lock.l_start = 0; ++ lock.l_whence = SEEK_SET; ++ lock.l_len = 0; ++ ++ /* Free space */ ++ ret = check_free_size(fd, file, buf); ++ if (ret < 0) { ++ if ((mode_flag & DETAIL) && ret == -ENOSPC) { ++ printf("\033[79;0H\033[K[%u/%u] \"%s\"\t\t" ++ " extents: %d -> %d\n", defraged_file_count, ++ total_count, file, extents, extents); ++ IN_FTW_PRINT_ERR_MSG( ++ "Defrag size is larger than filesystem's free space"); ++ } ++ return -1; ++ } ++ ++ /* Access authority */ ++ if (current_uid != ROOT_UID && ++ buf->st_uid != current_uid) { ++ if (mode_flag & DETAIL) { ++ printf("\033[79;0H\033[K[%u/%u] \"%s\"\t\t" ++ " extents: %d -> %d\n", defraged_file_count, ++ total_count, file, extents, extents); ++ IN_FTW_PRINT_ERR_MSG( ++ "File is not current user's file" ++ " or current user is not root"); ++ } ++ return -1; ++ } ++ ++ /* Lock status */ ++ if (fcntl(fd, F_GETLK, &lock) < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO( ++ "Failed to get lock information"); ++ } ++ return -1; ++ } else if (lock.l_type != F_UNLCK) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ IN_FTW_PRINT_ERR_MSG("File has been locked"); ++ } ++ return -1; ++ } ++ ++ return 0; ++} ++ ++/* ++ * insert_extent_by_logical() - Sequentially insert extent by logical. ++ * ++ * @ext_list_head: the head of logical extent list. ++ * @ext: the extent element which will be inserted. ++ */ ++static int insert_extent_by_logical(struct fiemap_extent_list **ext_list_head, ++ struct fiemap_extent_list *ext) ++{ ++ struct fiemap_extent_list *ext_list_tmp = *ext_list_head; ++ ++ if (ext == NULL) ++ goto out; ++ ++ /* First element */ ++ if (*ext_list_head == NULL) { ++ (*ext_list_head) = ext; ++ (*ext_list_head)->prev = *ext_list_head; ++ (*ext_list_head)->next = *ext_list_head; ++ return 0; ++ } ++ ++ if (ext->data.logical <= ext_list_tmp->data.logical) { ++ /* Insert before head */ ++ if (ext_list_tmp->data.logical < ++ ext->data.logical + ext->data.len) ++ /* Overlap */ ++ goto out; ++ /* Adjust head */ ++ *ext_list_head = ext; ++ } else { ++ /* Insert into the middle or last of the list */ ++ do { ++ if (ext->data.logical < ext_list_tmp->data.logical) ++ break; ++ ext_list_tmp = ext_list_tmp->next; ++ } while (ext_list_tmp != (*ext_list_head)); ++ if (ext->data.logical < ++ ext_list_tmp->prev->data.logical + ++ ext_list_tmp->prev->data.len) ++ /* Overlap */ ++ goto out; ++ ++ if (ext_list_tmp != *ext_list_head && ++ ext_list_tmp->data.logical < ++ ext->data.logical + ext->data.len) ++ /* Overlap */ ++ goto out; ++ } ++ ext_list_tmp = ext_list_tmp->prev; ++ /* Insert "ext" after "ext_list_tmp" */ ++ insert(ext_list_tmp, ext); ++ return 0; ++out: ++ errno = EINVAL; ++ return -1; ++} ++ ++/* ++ * insert_extent_by_physical() - Sequentially insert extent by physical. ++ * ++ * @ext_list_head: the head of physical extent list. ++ * @ext: the extent element which will be inserted. ++ */ ++static int insert_extent_by_physical(struct fiemap_extent_list **ext_list_head, ++ struct fiemap_extent_list *ext) ++{ ++ struct fiemap_extent_list *ext_list_tmp = *ext_list_head; ++ ++ if (ext == NULL) ++ goto out; ++ ++ /* First element */ ++ if (*ext_list_head == NULL) { ++ (*ext_list_head) = ext; ++ (*ext_list_head)->prev = *ext_list_head; ++ (*ext_list_head)->next = *ext_list_head; ++ return 0; ++ } ++ ++ if (ext->data.physical <= ext_list_tmp->data.physical) { ++ /* Insert before head */ ++ if (ext_list_tmp->data.physical < ++ ext->data.physical + ext->data.len) ++ /* Overlap */ ++ goto out; ++ /* Adjust head */ ++ *ext_list_head = ext; ++ } else { ++ /* Insert into the middle or last of the list */ ++ do { ++ if (ext->data.physical < ext_list_tmp->data.physical) ++ break; ++ ext_list_tmp = ext_list_tmp->next; ++ } while (ext_list_tmp != (*ext_list_head)); ++ if (ext->data.physical < ++ ext_list_tmp->prev->data.physical + ++ ext_list_tmp->prev->data.len) ++ /* Overlap */ ++ goto out; ++ ++ if (ext_list_tmp != *ext_list_head && ++ ext_list_tmp->data.physical < ++ ext->data.physical + ext->data.len) ++ /* Overlap */ ++ goto out; ++ } ++ ext_list_tmp = ext_list_tmp->prev; ++ /* Insert "ext" after "ext_list_tmp" */ ++ insert(ext_list_tmp, ext); ++ return 0; ++out: ++ errno = EINVAL; ++ return -1; ++} ++ ++/* ++ * insert_exts_group() - Insert a exts_group. ++ * ++ * @ext_group_head: the head of a exts_group list. ++ * @exts_group: the exts_group element which will be inserted. ++ */ ++static int insert_exts_group(struct fiemap_extent_group **ext_group_head, ++ struct fiemap_extent_group *exts_group) ++{ ++ struct fiemap_extent_group *ext_group_tmp = NULL; ++ ++ if (exts_group == NULL) { ++ errno = EINVAL; ++ return -1; ++ } ++ ++ /* Initialize list */ ++ if (*ext_group_head == NULL) { ++ (*ext_group_head) = exts_group; ++ (*ext_group_head)->prev = *ext_group_head; ++ (*ext_group_head)->next = *ext_group_head; ++ return 0; ++ } ++ ++ ext_group_tmp = (*ext_group_head)->prev; ++ insert(ext_group_tmp, exts_group); ++ ++ return 0; ++} ++ ++/* ++ * join_extents() - Find continuous region(exts_group). ++ * ++ * @ext_list_head: the head of the extent list. ++ * @ext_group_head: the head of the target exts_group list. ++ */ ++static int join_extents(struct fiemap_extent_list *ext_list_head, ++ struct fiemap_extent_group **ext_group_head) ++{ ++ __u64 len = ext_list_head->data.len; ++ struct fiemap_extent_list *ext_list_start = ext_list_head; ++ struct fiemap_extent_list *ext_list_tmp = ext_list_head->next; ++ ++ do { ++ struct fiemap_extent_group *ext_group_tmp = NULL; ++ ++ /* This extent and previous extent are not continuous, ++ * so, all previous extents are treated as an extent group. ++ */ ++ if ((ext_list_tmp->prev->data.logical + ++ ext_list_tmp->prev->data.len) ++ != ext_list_tmp->data.logical) { ++ ext_group_tmp = ++ malloc(sizeof(struct fiemap_extent_group)); ++ if (ext_group_tmp == NULL) ++ return -1; ++ ++ memset(ext_group_tmp, 0, ++ sizeof(struct fiemap_extent_group)); ++ ext_group_tmp->len = len; ++ ext_group_tmp->start = ext_list_start; ++ ext_group_tmp->end = ext_list_tmp->prev; ++ ++ if (insert_exts_group(ext_group_head, ++ ext_group_tmp) < 0) { ++ FREE(ext_group_tmp); ++ return -1; ++ } ++ ext_list_start = ext_list_tmp; ++ len = ext_list_tmp->data.len; ++ ext_list_tmp = ext_list_tmp->next; ++ continue; ++ } ++ ++ /* This extent and previous extent are continuous, ++ * so, they belong to the same extent group, and we check ++ * if the next extent belongs to the same extent group. ++ */ ++ len += ext_list_tmp->data.len; ++ ext_list_tmp = ext_list_tmp->next; ++ } while (ext_list_tmp != ext_list_head->next); ++ ++ return 0; ++} ++ ++/* ++ * get_file_extents() - Get file's extent list. ++ * ++ * @fd: defrag target file's descriptor. ++ * @ext_list_head: the head of the extent list. ++ */ ++static int get_file_extents(int fd, struct fiemap_extent_list **ext_list_head) ++{ ++ __u32 i; ++ int ret; ++ int ext_buf_size, fie_buf_size; ++ __u64 pos = 0; ++ struct fiemap *fiemap_buf = NULL; ++ struct fiemap_extent *ext_buf = NULL; ++ struct fiemap_extent_list *ext_list = NULL; ++ ++ /* Convert units, in bytes. ++ * Be careful : now, physical block number in extent is 48bit, ++ * and the maximum blocksize for ext4 is 4K(12bit), ++ * so there is no overflow, but in future it may be changed. ++ */ ++ ++ /* Alloc space for fiemap */ ++ ext_buf_size = EXTENT_MAX_COUNT * sizeof(struct fiemap_extent); ++ fie_buf_size = sizeof(struct fiemap) + ext_buf_size; ++ ++ fiemap_buf = malloc(fie_buf_size); ++ if (fiemap_buf == NULL) ++ return -1; ++ ++ ext_buf = fiemap_buf->fm_extents; ++ memset(fiemap_buf, 0, fie_buf_size); ++ fiemap_buf->fm_length = FIEMAP_MAX_OFFSET; ++ fiemap_buf->fm_flags |= FIEMAP_FLAG_SYNC; ++ fiemap_buf->fm_extent_count = EXTENT_MAX_COUNT; ++ ++ do { ++ fiemap_buf->fm_start = pos; ++ memset(ext_buf, 0, ext_buf_size); ++ ret = ioctl(fd, FS_IOC_FIEMAP, fiemap_buf); ++ if (ret < 0) ++ goto out; ++ for (i = 0; i < fiemap_buf->fm_mapped_extents; i++) { ++ ext_list = NULL; ++ ext_list = malloc(sizeof(struct fiemap_extent_list)); ++ if (ext_list == NULL) ++ goto out; ++ ++ ext_list->data.physical = ext_buf[i].fe_physical ++ / block_size; ++ ext_list->data.logical = ext_buf[i].fe_logical ++ / block_size; ++ ext_list->data.len = ext_buf[i].fe_length ++ / block_size; ++ ++ ret = insert_extent_by_physical( ++ ext_list_head, ext_list); ++ if (ret < 0) { ++ FREE(ext_list); ++ goto out; ++ } ++ } ++ /* Record file's logical offset this time */ ++ pos = ext_buf[EXTENT_MAX_COUNT-1].fe_logical + ++ ext_buf[EXTENT_MAX_COUNT-1].fe_length; ++ /* ++ * If fm_extents array has been filled and ++ * there are extents left, continue to cycle. ++ */ ++ } while (fiemap_buf->fm_mapped_extents ++ == EXTENT_MAX_COUNT && ++ !(ext_buf[EXTENT_MAX_COUNT-1].fe_flags ++ & FIEMAP_EXTENT_LAST)); ++ ++ FREE(fiemap_buf); ++ return 0; ++out: ++ FREE(fiemap_buf); ++ return -1; ++} ++ ++/* ++ * get_logical_count() - Get the file logical extents count. ++ * ++ * @logical_list_head: the head of the logical extent list. ++ */ ++static int get_logical_count(struct fiemap_extent_list *logical_list_head) ++{ ++ int ret = 0; ++ struct fiemap_extent_list *ext_list_tmp = logical_list_head; ++ ++ do { ++ ret++; ++ ext_list_tmp = ext_list_tmp->next; ++ } while (ext_list_tmp != logical_list_head); ++ ++ return ret; ++} ++ ++/* ++ * get_physical_count() - Get the file physical extents count. ++ * ++ * @physical_list_head: the head of the physical extent list. ++ */ ++static int get_physical_count(struct fiemap_extent_list *physical_list_head) ++{ ++ int ret = 0; ++ struct fiemap_extent_list *ext_list_tmp = physical_list_head; ++ ++ do { ++ if ((ext_list_tmp->data.physical + ext_list_tmp->data.len) ++ != ext_list_tmp->next->data.physical) { ++ /* This extent and next extent are not continuous. */ ++ ret++; ++ } ++ ++ ext_list_tmp = ext_list_tmp->next; ++ } while (ext_list_tmp != physical_list_head); ++ ++ return ret; ++} ++ ++/* ++ * change_physical_to_logical() - Change list from physical to logical. ++ * ++ * @physical_list_head: the head of physical extent list. ++ * @logical_list_head: the head of logical extent list. ++ */ ++static int change_physical_to_logical( ++ struct fiemap_extent_list **physical_list_head, ++ struct fiemap_extent_list **logical_list_head) ++{ ++ int ret; ++ struct fiemap_extent_list *ext_list_tmp = *physical_list_head; ++ struct fiemap_extent_list *ext_list_next = ext_list_tmp->next; ++ ++ while (1) { ++ if (ext_list_tmp == ext_list_next) { ++ ret = insert_extent_by_logical( ++ logical_list_head, ext_list_tmp); ++ if (ret < 0) ++ return -1; ++ ++ *physical_list_head = NULL; ++ break; ++ } ++ ++ ext_list_tmp->prev->next = ext_list_tmp->next; ++ ext_list_tmp->next->prev = ext_list_tmp->prev; ++ *physical_list_head = ext_list_next; ++ ++ ret = insert_extent_by_logical( ++ logical_list_head, ext_list_tmp); ++ if (ret < 0) { ++ FREE(ext_list_tmp); ++ return -1; ++ } ++ ext_list_tmp = ext_list_next; ++ ext_list_next = ext_list_next->next; ++ } ++ ++ return 0; ++} ++ ++/* ++ * free_ext() - Free the extent list. ++ * ++ * @ext_list_head: the extent list head of which will be free. ++ */ ++static void free_ext(struct fiemap_extent_list *ext_list_head) ++{ ++ struct fiemap_extent_list *ext_list_tmp = NULL; ++ ++ if (ext_list_head == NULL) ++ return; ++ ++ while (ext_list_head->next != ext_list_head) { ++ ext_list_tmp = ext_list_head; ++ ext_list_head->prev->next = ext_list_head->next; ++ ext_list_head->next->prev = ext_list_head->prev; ++ ext_list_head = ext_list_head->next; ++ free(ext_list_tmp); ++ } ++ free(ext_list_head); ++} ++ ++/* ++ * free_exts_group() - Free the exts_group. ++ * ++ * @*ext_group_head: the exts_group list head which will be free. ++ */ ++static void free_exts_group(struct fiemap_extent_group *ext_group_head) ++{ ++ struct fiemap_extent_group *ext_group_tmp = NULL; ++ ++ if (ext_group_head == NULL) ++ return; ++ ++ while (ext_group_head->next != ext_group_head) { ++ ext_group_tmp = ext_group_head; ++ ext_group_head->prev->next = ext_group_head->next; ++ ext_group_head->next->prev = ext_group_head->prev; ++ ext_group_head = ext_group_head->next; ++ free(ext_group_tmp); ++ } ++ free(ext_group_head); ++} ++ ++/* ++ * get_superblock_info() - Get superblock info by the file name. ++ * ++ * @file: the file's name. ++ * @sb: the pointer of the struct ext4_super_block. ++ */ ++static int get_superblock_info(const char *file, struct ext4_super_block *sb) ++{ ++ /* Refer to /etc/mtab */ ++ const char *mtab = MOUNTED; ++ FILE *fp = NULL; ++ ++ int fd = -1; ++ int ret; ++ size_t maxlen = 0; ++ size_t len; ++ char dev_name[PATH_MAX + 1]; ++ struct mntent *mnt = NULL; ++ ++ fp = setmntent(mtab, "r"); ++ if (fp == NULL) ++ return -1; ++ ++ while ((mnt = getmntent(fp)) != NULL) { ++ len = strlen(mnt->mnt_dir); ++ ret = memcmp(file, mnt->mnt_dir, len); ++ if (ret != 0) ++ continue; ++ ++ if (len < maxlen) ++ continue; ++ ++ maxlen = len; ++ ++ memset(dev_name, 0, PATH_MAX + 1); ++ strncpy(dev_name, mnt->mnt_fsname, ++ strnlen(mnt->mnt_fsname, PATH_MAX)); ++ } ++ ++ fd = open64(dev_name, O_RDONLY); ++ if (fd < 0) { ++ ret = -1; ++ goto out; ++ } ++ ++ /* Set offset to read superblock */ ++ ret = lseek64(fd, SUPERBLOCK_OFFSET, SEEK_SET); ++ if (ret < 0) ++ goto out; ++ ++ ret = read(fd, sb, sizeof(struct ext4_super_block)); ++ if (ret < 0) ++ goto out; ++ ++out: ++ if (fd != -1) ++ close(fd); ++ endmntent(fp); ++ return ret; ++} ++ ++/* ++ * get_best_count() - Get the file best extents count. ++ * ++ * @block_count: the file's physical block count. ++ */ ++static int get_best_count(ext4_fsblk_t block_count) ++{ ++ int ret; ++ unsigned int flex_bg_num; ++ ++ /* Calcuate best extents count */ ++ if (feature_incompat & EXT4_FEATURE_INCOMPAT_FLEX_BG) { ++ flex_bg_num = 1 << log_groups_per_flex; ++ ret = ((block_count - 1) / ++ ((ext4_fsblk_t)blocks_per_group * ++ flex_bg_num)) + 1; ++ } else ++ ret = ((block_count - 1) / blocks_per_group) + 1; ++ ++ return ret; ++} ++ ++ ++/* ++ * file_statistic() - Get statistic info of the file's fragments. ++ * ++ * @file: the file's name. ++ * @buf: the pointer of the struct stat64. ++ * @flag: file type. ++ * @ftwbuf: the pointer of a struct FTW. ++ */ ++static int file_statistic(const char *file, const struct stat64 *buf, ++ int flag EXT2FS_ATTR((unused)), ++ struct FTW *ftwbuf EXT2FS_ATTR((unused))) ++{ ++ int fd; ++ int ret; ++ int now_ext_count, best_ext_count = 0, physical_ext_count; ++ int i, j; ++ float ratio = 0.0; ++ ext4_fsblk_t blk_count = 0; ++ char msg_buffer[PATH_MAX + 24]; ++ struct fiemap_extent_list *physical_list_head = NULL; ++ struct fiemap_extent_list *logical_list_head = NULL; ++ ++ defraged_file_count++; ++ ++ if (mode_flag & DETAIL) { ++ if (total_count == 1 && regular_count == 1) ++ printf("\n"); ++ else { ++ printf("[%u/%u]", defraged_file_count, total_count); ++ fflush(stdout); ++ } ++ } ++ if (lost_found_dir[0] != '\0' && ++ !memcmp(file, lost_found_dir, strnlen(lost_found_dir, PATH_MAX))) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ STATISTIC_ERR_MSG(NGMSG_LOST_FOUND); ++ } ++ return 0; ++ } ++ ++ if (!S_ISREG(buf->st_mode)) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ STATISTIC_ERR_MSG(NGMSG_FILE_UNREG); ++ } ++ return 0; ++ } ++ ++ /* Access authority */ ++ if (current_uid != ROOT_UID && ++ buf->st_uid != current_uid) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ STATISTIC_ERR_MSG( ++ "File is not current user's file" ++ " or current user is not root"); ++ } ++ return 0; ++ } ++ ++ /* Empty file */ ++ if (buf->st_size == 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ STATISTIC_ERR_MSG("File size is 0"); ++ } ++ return 0; ++ } ++ ++ /* Has no blocks */ ++ if (buf->st_blocks == 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ STATISTIC_ERR_MSG("File has no blocks"); ++ } ++ return 0; ++ } ++ ++ fd = open64(file, O_RDONLY); ++ if (fd < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ STATISTIC_ERR_MSG_WITH_ERRNO(NGMSG_FILE_OPEN); ++ } ++ return 0; ++ } ++ ++ /* Get file's physical extents */ ++ ret = get_file_extents(fd, &physical_list_head); ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ STATISTIC_ERR_MSG_WITH_ERRNO(NGMSG_FILE_EXTENT); ++ } ++ goto out; ++ } ++ ++ /* Get the count of file's continuous physical region */ ++ physical_ext_count = get_physical_count(physical_list_head); ++ ++ /* Change list from physical to logical */ ++ ret = change_physical_to_logical(&physical_list_head, ++ &logical_list_head); ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ STATISTIC_ERR_MSG_WITH_ERRNO(NGMSG_FILE_EXTENT); ++ } ++ goto out; ++ } ++ ++ /* Count file fragments before defrag */ ++ now_ext_count = get_logical_count(logical_list_head); ++ ++ if (current_uid == ROOT_UID) { ++ /* Calculate fragment ratio */ ++ blk_count = ++ SECTOR_TO_BLOCK(buf->st_blocks, block_size); ++ ++ best_ext_count = get_best_count(blk_count); ++ ++ ratio = (float)(physical_ext_count - best_ext_count) * 100 / ++ blk_count; ++ ++ extents_before_defrag += now_ext_count; ++ extents_after_defrag += best_ext_count; ++ files_block_count += blk_count; ++ } ++ ++ if (total_count == 1 && regular_count == 1) { ++ /* File only */ ++ if (mode_flag & DETAIL) { ++ int count = 0; ++ struct fiemap_extent_list *ext_list_tmp = ++ logical_list_head; ++ ++ /* Print extents info */ ++ do { ++ count++; ++ printf("[ext %d]:\tstart %llu:\tlogical " ++ "%llu:\tlen %llu\n", count, ++ ext_list_tmp->data.physical, ++ ext_list_tmp->data.logical, ++ ext_list_tmp->data.len); ++ ext_list_tmp = ext_list_tmp->next; ++ } while (ext_list_tmp != logical_list_head); ++ ++ } else { ++ printf("%-40s%10s/%-10s%9s\n", ++ "", "now", "best", "ratio"); ++ if (current_uid == ROOT_UID) { ++ if (strlen(file) > 40) ++ printf("%s\n%50d/%-10d%8.2f%%\n", ++ file, now_ext_count, ++ best_ext_count, ratio); ++ else ++ printf("%-40s%10d/%-10d%8.2f%%\n", ++ file, now_ext_count, ++ best_ext_count, ratio); ++ } else { ++ if (strlen(file) > 40) ++ printf("%s\n%50d/%-10s%7s\n", ++ file, now_ext_count, ++ "-", "-"); ++ else ++ printf("%-40s%10d/%-10s%7s\n", ++ file, now_ext_count, ++ "-", "-"); ++ } ++ } ++ succeed_cnt++; ++ goto out; ++ } ++ ++ if (mode_flag & DETAIL) { ++ /* Print statistic info */ ++ sprintf(msg_buffer, "[%u/%u]%s", ++ defraged_file_count, total_count, file); ++ if (current_uid == ROOT_UID) { ++ if (strlen(msg_buffer) > 40) ++ printf("\033[79;0H\033[K%s\n" ++ "%50d/%-10d%8.2f%%\n", ++ msg_buffer, now_ext_count, ++ best_ext_count, ratio); ++ else ++ printf("\033[79;0H\033[K%-40s" ++ "%10d/%-10d%8.2f%%\n", ++ msg_buffer, now_ext_count, ++ best_ext_count, ratio); ++ } else { ++ if (strlen(msg_buffer) > 40) ++ printf("\033[79;0H\033[K%s\n%50d/%-10s%7s\n", ++ msg_buffer, now_ext_count, ++ "-", "-"); ++ else ++ printf("\033[79;0H\033[K%-40s%10d/%-10s%7s\n", ++ msg_buffer, now_ext_count, ++ "-", "-"); ++ } ++ } ++ ++ for (i = 0; i < SHOW_FRAG_FILES; i++) { ++ if (ratio >= frag_rank[i].ratio) { ++ for (j = SHOW_FRAG_FILES - 1; j > i; j--) { ++ memcpy(&frag_rank[j], &frag_rank[j - 1], ++ sizeof(struct frag_statistic_ino)); ++ } ++ memset(&frag_rank[i], 0, ++ sizeof(struct frag_statistic_ino)); ++ strncpy(frag_rank[i].msg_buffer, file, ++ strnlen(file, PATH_MAX)); ++ frag_rank[i].now_count = now_ext_count; ++ frag_rank[i].best_count = best_ext_count; ++ frag_rank[i].ratio = ratio; ++ break; ++ } ++ } ++ ++ succeed_cnt++; ++ ++out: ++ close(fd); ++ free_ext(physical_list_head); ++ free_ext(logical_list_head); ++ return 0; ++} ++ ++/* ++ * print_progress - Print defrag progress ++ * ++ * @file: file name. ++ * @start: logical offset for defrag target file ++ * @file_size: defrag target filesize ++ */ ++static void print_progress(const char *file, loff_t start, loff_t file_size) ++{ ++ int percent = (start * 100) / file_size; ++ printf("\033[79;0H\033[K[%u/%u]%s:\t%3d%%", ++ defraged_file_count, total_count, file, min(percent, 100)); ++ fflush(stdout); ++ ++ return; ++} ++ ++/* ++ * call_defrag() - Execute the defrag program. ++ * ++ * @fd: target file descriptor. ++ * @donor_fd: donor file descriptor. ++ * @file: target file name. ++ * @buf: pointer of the struct stat64. ++ * @ext_list_head: head of the extent list. ++ */ ++static int call_defrag(int fd, int donor_fd, const char *file, ++ const struct stat64 *buf, struct fiemap_extent_list *ext_list_head) ++{ ++ loff_t start = 0; ++ unsigned int page_num; ++ unsigned char *vec = NULL; ++ int defraged_ret = 0; ++ int ret; ++ struct move_extent move_data; ++ struct fiemap_extent_list *ext_list_tmp = NULL; ++ ++ memset(&move_data, 0, sizeof(struct move_extent)); ++ move_data.donor_fd = donor_fd; ++ ++ /* Print defrag progress */ ++ print_progress(file, start, buf->st_size); ++ ++ ext_list_tmp = ext_list_head; ++ do { ++ move_data.orig_start = ext_list_tmp->data.logical; ++ /* Logical offset of orig and donor should be same */ ++ move_data.donor_start = move_data.orig_start; ++ move_data.len = ext_list_tmp->data.len; ++ move_data.moved_len = 0; ++ ++ ret = page_in_core(fd, move_data, &vec, &page_num); ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ printf("\n"); ++ PRINT_ERR_MSG_WITH_ERRNO( ++ "Failed to get file map"); ++ } else { ++ printf("\t[ NG ]\n"); ++ } ++ return -1; ++ } ++ ++ /* EXT4_IOC_MOVE_EXT */ ++ defraged_ret = ++ ioctl(fd, EXT4_IOC_MOVE_EXT, &move_data); ++ ++ /* Free pages */ ++ ret = defrag_fadvise(fd, move_data, vec, page_num); ++ if (vec) { ++ free(vec); ++ vec = NULL; ++ } ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ printf("\n"); ++ PRINT_ERR_MSG_WITH_ERRNO( ++ "Failed to free page"); ++ } else { ++ printf("\t[ NG ]\n"); ++ } ++ return -1; ++ } ++ ++ if (defraged_ret < 0) { ++ if (mode_flag & DETAIL) { ++ printf("\n"); ++ PRINT_ERR_MSG_WITH_ERRNO( ++ "Failed to defrag"); ++ } else { ++ printf("\t[ NG ]\n"); ++ } ++ return -1; ++ } ++ /* Adjust logical offset for next ioctl */ ++ move_data.orig_start += move_data.moved_len; ++ move_data.donor_start = move_data.orig_start; ++ ++ start = move_data.orig_start * buf->st_blksize; ++ ++ /* Print defrag progress */ ++ print_progress(file, start, buf->st_size); ++ ++ /* End of file */ ++ if (start >= buf->st_size) ++ break; ++ ++ ext_list_tmp = ext_list_tmp->next; ++ } while (ext_list_tmp != ext_list_head); ++ ++ return 0; ++} ++ ++/* ++ * file_defrag() - Check file attributes and call ioctl to defrag. ++ * ++ * @file: the file's name. ++ * @buf: the pointer of the struct stat64. ++ * @flag: file type. ++ * @ftwbuf: the pointer of a struct FTW. ++ */ ++static int file_defrag(const char *file, const struct stat64 *buf, ++ int flag EXT2FS_ATTR((unused)), ++ struct FTW *ftwbuf EXT2FS_ATTR((unused))) ++{ ++ int fd; ++ int donor_fd = -1; ++ int ret; ++ int best; ++ int file_frags_start, file_frags_end; ++ int orig_physical_cnt, donor_physical_cnt = 0; ++ char tmp_inode_name[PATH_MAX + 8]; ++ struct fiemap_extent_list *orig_list_physical = NULL; ++ struct fiemap_extent_list *orig_list_logical = NULL; ++ struct fiemap_extent_list *donor_list_physical = NULL; ++ struct fiemap_extent_list *donor_list_logical = NULL; ++ struct fiemap_extent_group *orig_group_head = NULL; ++ struct fiemap_extent_group *orig_group_tmp = NULL; ++ ++ defraged_file_count++; ++ ++ if (mode_flag & DETAIL) { ++ printf("[%u/%u]", defraged_file_count, total_count); ++ fflush(stdout); ++ } ++ ++ if (lost_found_dir[0] != '\0' && ++ !memcmp(file, lost_found_dir, strnlen(lost_found_dir, PATH_MAX))) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ IN_FTW_PRINT_ERR_MSG(NGMSG_LOST_FOUND); ++ } ++ return 0; ++ } ++ ++ if (!S_ISREG(buf->st_mode)) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ IN_FTW_PRINT_ERR_MSG(NGMSG_FILE_UNREG); ++ } ++ return 0; ++ } ++ ++ /* Empty file */ ++ if (buf->st_size == 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ IN_FTW_PRINT_ERR_MSG("File size is 0"); ++ } ++ return 0; ++ } ++ ++ /* Has no blocks */ ++ if (buf->st_blocks == 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ STATISTIC_ERR_MSG("File has no blocks"); ++ } ++ return 0; ++ } ++ ++ fd = open64(file, O_RDONLY); ++ if (fd < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO(NGMSG_FILE_OPEN); ++ } ++ return 0; ++ } ++ ++ /* Get file's extents */ ++ ret = get_file_extents(fd, &orig_list_physical); ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO(NGMSG_FILE_EXTENT); ++ } ++ goto out; ++ } ++ ++ /* Get the count of file's continuous physical region */ ++ orig_physical_cnt = get_physical_count(orig_list_physical); ++ ++ /* Change list from physical to logical */ ++ ret = change_physical_to_logical(&orig_list_physical, ++ &orig_list_logical); ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO(NGMSG_FILE_EXTENT); ++ } ++ goto out; ++ } ++ ++ /* Count file fragments before defrag */ ++ file_frags_start = get_logical_count(orig_list_logical); ++ ++ if (file_check(fd, buf, file, file_frags_start) < 0) ++ goto out; ++ ++ if (fsync(fd) < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO("Failed to sync(fsync)"); ++ } ++ goto out; ++ } ++ ++ if (current_uid == ROOT_UID) ++ best = ++ get_best_count(SECTOR_TO_BLOCK(buf->st_blocks, block_size)); ++ else ++ best = 1; ++ ++ if (file_frags_start <= best) ++ goto check_improvement; ++ ++ /* Combine extents to group */ ++ ret = join_extents(orig_list_logical, &orig_group_head); ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO(NGMSG_FILE_EXTENT); ++ } ++ goto out; ++ } ++ ++ /* Create donor inode */ ++ memset(tmp_inode_name, 0, PATH_MAX + 8); ++ sprintf(tmp_inode_name, "%.*s.defrag", ++ (int)strnlen(file, PATH_MAX), file); ++ donor_fd = open64(tmp_inode_name, O_WRONLY | O_CREAT | O_EXCL, S_IRUSR); ++ if (donor_fd < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ if (errno == EEXIST) ++ PRINT_ERR_MSG_WITH_ERRNO( ++ "File is being defraged by other program"); ++ else ++ PRINT_ERR_MSG_WITH_ERRNO(NGMSG_FILE_OPEN); ++ } ++ goto out; ++ } ++ ++ /* Unlink donor inode */ ++ ret = unlink(tmp_inode_name); ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO("Failed to unlink"); ++ } ++ goto out; ++ } ++ ++ /* Allocate space for donor inode */ ++ orig_group_tmp = orig_group_head; ++ do { ++ ret = fallocate(donor_fd, 0, ++ (loff_t)orig_group_tmp->start->data.logical * block_size, ++ (loff_t)orig_group_tmp->len * block_size); ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO("Failed to fallocate"); ++ } ++ goto out; ++ } ++ ++ orig_group_tmp = orig_group_tmp->next; ++ } while (orig_group_tmp != orig_group_head); ++ ++ /* Get donor inode's extents */ ++ ret = get_file_extents(donor_fd, &donor_list_physical); ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO(NGMSG_FILE_EXTENT); ++ } ++ goto out; ++ } ++ ++ /* Calcuate donor inode's continuous physical region */ ++ donor_physical_cnt = get_physical_count(donor_list_physical); ++ ++ /* Change donor extent list from physical to logical */ ++ ret = change_physical_to_logical(&donor_list_physical, ++ &donor_list_logical); ++ if (ret < 0) { ++ if (mode_flag & DETAIL) { ++ PRINT_FILE_NAME(file); ++ PRINT_ERR_MSG_WITH_ERRNO(NGMSG_FILE_EXTENT); ++ } ++ goto out; ++ } ++ ++check_improvement: ++ if (mode_flag & DETAIL) { ++ if (file_frags_start != 1) ++ frag_files_before_defrag++; ++ ++ extents_before_defrag += file_frags_start; ++ } ++ ++ if (file_frags_start <= best || ++ orig_physical_cnt <= donor_physical_cnt) { ++ printf("\033[79;0H\033[K[%u/%u]%s:\t%3d%%", ++ defraged_file_count, total_count, file, 100); ++ if (mode_flag & DETAIL) ++ printf(" extents: %d -> %d", ++ file_frags_start, file_frags_start); ++ ++ printf("\t[ OK ]\n"); ++ succeed_cnt++; ++ ++ if (file_frags_start != 1) ++ frag_files_after_defrag++; ++ ++ extents_after_defrag += file_frags_start; ++ goto out; ++ } ++ ++ /* Defrag the file */ ++ ret = call_defrag(fd, donor_fd, file, buf, donor_list_logical); ++ ++ /* Count file fragments after defrag and print extents info */ ++ if (mode_flag & DETAIL) { ++ file_frags_end = file_frag_count(fd); ++ if (file_frags_end < 0) { ++ printf("\n"); ++ PRINT_ERR_MSG_WITH_ERRNO(NGMSG_FILE_INFO); ++ goto out; ++ } ++ ++ if (file_frags_end != 1) ++ frag_files_after_defrag++; ++ ++ extents_after_defrag += file_frags_end; ++ ++ if (ret < 0) ++ goto out; ++ ++ printf(" extents: %d -> %d", ++ file_frags_start, file_frags_end); ++ fflush(stdout); ++ } ++ ++ if (ret < 0) ++ goto out; ++ ++ printf("\t[ OK ]\n"); ++ fflush(stdout); ++ succeed_cnt++; ++ ++out: ++ close(fd); ++ if (donor_fd != -1) ++ close(donor_fd); ++ free_ext(orig_list_physical); ++ free_ext(orig_list_logical); ++ free_ext(donor_list_physical); ++ free_exts_group(orig_group_head); ++ return 0; ++} ++ ++/* ++ * main() - Ext4 online defrag. ++ * ++ * @argc: the number of parameter. ++ * @argv[]: the pointer array of parameter. ++ */ ++int main(int argc, char *argv[]) ++{ ++ int opt; ++ int i, j; ++ int flags = FTW_PHYS | FTW_MOUNT; ++ int arg_type = -1; ++ int success_flag = 0; ++ char dir_name[PATH_MAX + 1]; ++ struct stat64 buf; ++ struct ext4_super_block sb; ++ ++ /* Parse arguments */ ++ if (argc == 1) ++ goto out; ++ ++ while ((opt = getopt(argc, argv, "vc")) != EOF) { ++ switch (opt) { ++ case 'v': ++ mode_flag |= DETAIL; ++ break; ++ case 'c': ++ mode_flag |= STATISTIC; ++ break; ++ default: ++ goto out; ++ } ++ } ++ ++ if (argc == optind) ++ goto out; ++ ++ current_uid = getuid(); ++ ++ /* Main process */ ++ for (i = optind; i < argc; i++) { ++ succeed_cnt = 0; ++ regular_count = 0; ++ total_count = 0; ++ frag_files_before_defrag = 0; ++ frag_files_after_defrag = 0; ++ extents_before_defrag = 0; ++ extents_after_defrag = 0; ++ defraged_file_count = 0; ++ files_block_count = 0; ++ blocks_per_group = 0; ++ feature_incompat = 0; ++ log_groups_per_flex = 0; ++ ++ memset(dir_name, 0, PATH_MAX + 1); ++ memset(lost_found_dir, 0, PATH_MAX + 1); ++ memset(frag_rank, 0, ++ sizeof(struct frag_statistic_ino) * SHOW_FRAG_FILES); ++ ++ if ((mode_flag & STATISTIC) && i > optind) ++ printf("\n"); ++ ++#if BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN ++ PRINT_ERR_MSG("Endian's type is not big/little endian"); ++ PRINT_FILE_NAME(argv[i]); ++ continue; ++#endif ++ ++ if (lstat64(argv[i], &buf) < 0) { ++ perror(NGMSG_FILE_INFO); ++ PRINT_FILE_NAME(argv[i]); ++ continue; ++ } ++ ++ if (S_ISBLK(buf.st_mode)) { ++ /* Block device */ ++ if (get_mount_point(argv[i], dir_name, PATH_MAX) < 0) ++ continue; ++ if (lstat64(dir_name, &buf) < 0) { ++ perror(NGMSG_FILE_INFO); ++ PRINT_FILE_NAME(argv[i]); ++ continue; ++ } ++ arg_type = DEVNAME; ++ if (!(mode_flag & STATISTIC)) ++ printf("ext4 defragmentation for device(%s)\n", ++ argv[i]); ++ } else if (S_ISDIR(buf.st_mode)) { ++ /* Directory */ ++ if (access(argv[i], R_OK) < 0) { ++ perror(argv[i]); ++ continue; ++ } ++ arg_type = DIRNAME; ++ strncpy(dir_name, argv[i], strnlen(argv[i], PATH_MAX)); ++ } else if (S_ISREG(buf.st_mode)) { ++ /* Regular file */ ++ arg_type = FILENAME; ++ } else { ++ /* Irregular file */ ++ PRINT_ERR_MSG(NGMSG_FILE_UNREG); ++ PRINT_FILE_NAME(argv[i]); ++ continue; ++ } ++ ++ /* Set blocksize */ ++ block_size = buf.st_blksize; ++ ++ /* For device case, ++ * filesystem type checked in get_mount_point() ++ */ ++ if (arg_type == FILENAME || arg_type == DIRNAME) { ++ if (is_ext4(argv[i]) < 0) ++ continue; ++ if (realpath(argv[i], dir_name) == NULL) { ++ perror("Couldn't get full path"); ++ PRINT_FILE_NAME(argv[i]); ++ continue; ++ } ++ } ++ ++ if (current_uid == ROOT_UID) { ++ /* Get super block info */ ++ memset(&sb, 0, sizeof(struct ext4_super_block)); ++ if (get_superblock_info(dir_name, &sb) < 0) { ++ if (mode_flag & DETAIL) { ++ perror("Can't get super block info"); ++ PRINT_FILE_NAME(argv[i]); ++ } ++ continue; ++ } ++ ++ blocks_per_group = ext2fs_swab32(sb.s_blocks_per_group); ++ feature_incompat = ext2fs_swab32(sb.s_feature_incompat); ++ log_groups_per_flex = sb.s_log_groups_per_flex; ++ } ++ ++ switch (arg_type) { ++ case DIRNAME: ++ if (!(mode_flag & STATISTIC)) ++ printf("ext4 defragmentation " ++ "for directory(%s)\n", argv[i]); ++ ++ int mount_dir_len = 0; ++ mount_dir_len = strnlen(lost_found_dir, PATH_MAX); ++ ++ strncat(lost_found_dir, "/lost+found", ++ PATH_MAX - strnlen(lost_found_dir, PATH_MAX)); ++ ++ /* Not the case("e4defrag mount_piont_dir") */ ++ if (dir_name[mount_dir_len] != '\0') { ++ /* ++ * "e4defrag mount_piont_dir/lost+found" ++ * or "e4defrag mount_piont_dir/lost+found/" ++ */ ++ if (strncmp(lost_found_dir, dir_name, ++ strnlen(lost_found_dir, ++ PATH_MAX)) == 0 && ++ (dir_name[strnlen(lost_found_dir, ++ PATH_MAX)] == '\0' || ++ dir_name[strnlen(lost_found_dir, ++ PATH_MAX)] == '/')) { ++ PRINT_ERR_MSG(NGMSG_LOST_FOUND); ++ PRINT_FILE_NAME(argv[i]); ++ continue; ++ } ++ ++ /* "e4defrag mount_piont_dir/else_dir" */ ++ memset(lost_found_dir, 0, PATH_MAX + 1); ++ } ++ case DEVNAME: ++ if (arg_type == DEVNAME) { ++ strncpy(lost_found_dir, dir_name, ++ strnlen(dir_name, PATH_MAX)); ++ strncat(lost_found_dir, "/lost+found/", ++ PATH_MAX - strnlen(lost_found_dir, ++ PATH_MAX)); ++ } ++ ++ nftw64(dir_name, calc_entry_counts, FTW_OPEN_FD, flags); ++ ++ if (mode_flag & STATISTIC) { ++ if (mode_flag & DETAIL) ++ printf("%-40s%10s/%-10s%9s\n", ++ "", "now", "best", "ratio"); ++ ++ if (!(mode_flag & DETAIL) && ++ current_uid != ROOT_UID) { ++ printf(" Done.\n"); ++ continue; ++ } ++ ++ nftw64(dir_name, file_statistic, ++ FTW_OPEN_FD, flags); ++ ++ if (succeed_cnt != 0 && ++ current_uid == ROOT_UID) { ++ if (mode_flag & DETAIL) ++ printf("\n"); ++ printf("%-40s%10s/%-10s%9s\n", ++ "", "now", ++ "best", "ratio"); ++ for (j = 0; j < SHOW_FRAG_FILES; j++) { ++ if (strlen(frag_rank[j]. ++ msg_buffer) > 37) { ++ printf("%d. %s\n%50d/" ++ "%-10d%8.2f%%\n", j + 1, ++ frag_rank[j].msg_buffer, ++ frag_rank[j].now_count, ++ frag_rank[j].best_count, ++ frag_rank[j].ratio); ++ } else if (strlen(frag_rank[j]. ++ msg_buffer) > 0) { ++ printf("%d. %-37s%10d/" ++ "%-10d%8.2f%%\n", j + 1, ++ frag_rank[j].msg_buffer, ++ frag_rank[j].now_count, ++ frag_rank[j].best_count, ++ frag_rank[j].ratio); ++ } else ++ break; ++ } ++ } ++ break; ++ } ++ /* File tree walk */ ++ nftw64(dir_name, file_defrag, FTW_OPEN_FD, flags); ++ printf("\n\tSuccess:\t\t\t[ %u/%u ]\n", succeed_cnt, ++ total_count); ++ printf("\tFailure:\t\t\t[ %u/%u ]\n", ++ total_count - succeed_cnt, total_count); ++ if (mode_flag & DETAIL) { ++ printf("\tTotal extents:\t\t\t%4d->%d\n", ++ extents_before_defrag, ++ extents_after_defrag); ++ printf("\tFragmented percentage:\t\t" ++ "%3llu%%->%llu%%\n", ++ !regular_count ? 0 : ++ ((unsigned long long) ++ frag_files_before_defrag * 100) / ++ regular_count, ++ !regular_count ? 0 : ++ ((unsigned long long) ++ frag_files_after_defrag * 100) / ++ regular_count); ++ } ++ break; ++ case FILENAME: ++ total_count = 1; ++ regular_count = 1; ++ strncat(lost_found_dir, "/lost+found/", ++ PATH_MAX - strnlen(lost_found_dir, ++ PATH_MAX)); ++ if (strncmp(lost_found_dir, dir_name, ++ strnlen(lost_found_dir, ++ PATH_MAX)) == 0) { ++ PRINT_ERR_MSG(NGMSG_LOST_FOUND); ++ PRINT_FILE_NAME(argv[i]); ++ continue; ++ } ++ ++ if (mode_flag & STATISTIC) { ++ file_statistic(argv[i], &buf, FTW_F, NULL); ++ break; ++ } else ++ printf("ext4 defragmentation for %s\n", ++ argv[i]); ++ /* Defrag single file process */ ++ file_defrag(argv[i], &buf, FTW_F, NULL); ++ if (succeed_cnt != 0) ++ printf(" Success:\t\t\t[1/1]\n"); ++ else ++ printf(" Success:\t\t\t[0/1]\n"); ++ ++ break; ++ } ++ ++ if (succeed_cnt != 0) ++ success_flag = 1; ++ if (mode_flag & STATISTIC) { ++ if (current_uid != ROOT_UID) { ++ printf(" Done.\n"); ++ continue; ++ } ++ ++ if (!succeed_cnt) { ++ if (mode_flag & DETAIL) ++ printf("\n"); ++ ++ if (arg_type == DEVNAME) ++ printf(" In this device(%s), " ++ "none can be defragmented.\n", argv[i]); ++ else if (arg_type == DIRNAME) ++ printf(" In this directory(%s), " ++ "none can be defragmented.\n", argv[i]); ++ else ++ printf(" This file(%s) " ++ "can't be defragmented.\n", argv[i]); ++ } else { ++ float files_ratio = 0.0; ++ float score = 0.0; ++ files_ratio = (float)(extents_before_defrag - ++ extents_after_defrag) * ++ 100 / files_block_count; ++ score = CALC_SCORE(files_ratio); ++ printf("\n Total/best extents\t\t\t\t%d/%d\n" ++ " Fragmentation ratio\t\t\t\t%.2f%%\n" ++ " Fragmentation score\t\t\t\t%.2f\n", ++ extents_before_defrag, ++ extents_after_defrag, ++ files_ratio, score); ++ printf(" [0-30 no problem:" ++ " 31-55 a little bit fragmented:" ++ " 55- needs defrag]\n"); ++ ++ if (arg_type == DEVNAME) ++ printf(" This device(%s) ", argv[i]); ++ else if (arg_type == DIRNAME) ++ printf(" This directory(%s) ", argv[i]); ++ else ++ printf(" This file(%s) ", argv[i]); ++ ++ if (score > BOUND_SCORE) ++ printf("needs defragmentation.\n"); ++ else ++ printf("does not need " ++ "defragmentation.\n"); ++ } ++ printf(" Done.\n"); ++ } ++ ++ } ++ ++ if (success_flag) ++ return 0; ++ ++ exit(1); ++ ++out: ++ printf(MSG_USAGE); ++ exit(1); ++} ++ +Index: e2fsprogs-1.41.9/misc/Makefile.in +=================================================================== +--- e2fsprogs-1.41.9.orig/misc/Makefile.in ++++ e2fsprogs-1.41.9/misc/Makefile.in +@@ -51,6 +51,7 @@ BLKID_OBJS= blkid.o + FILEFRAG_OBJS= filefrag.o + E2UNDO_OBJS= e2undo.o + E2FREEFRAG_OBJS= e2freefrag.o ++E4DEFRAG_OBJS= e4defrag.o + + PROFILED_TUNE2FS_OBJS= profiled/tune2fs.o profiled/util.o + PROFILED_MKLPF_OBJS= profiled/mklost+found.o +@@ -68,7 +69,7 @@ PROFILED_FSCK_OBJS= profiled/fsck.o prof + PROFILED_BLKID_OBJS= profiled/blkid.o + PROFILED_FILEFRAG_OBJS= profiled/filefrag.o + PROFILED_E2UNDO_OBJS= profiled/e2undo.o +- ++PROFILED_E4DEFRAG_OBJS= profiled/e4defrag.o + + XTRA_CFLAGS= -I$(srcdir)/../e2fsck -I. + +@@ -99,12 +100,12 @@ COMPILE_ET=$(top_builddir)/lib/et/compil + @PROFILE_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -g -pg -o profiled/$*.o -c $< + + all:: profiled $(SPROGS) $(UPROGS) $(USPROGS) $(SMANPAGES) $(UMANPAGES) \ +- $(FMANPAGES) $(LPROGS) ++ $(FMANPAGES) $(LPROGS) e4defrag + + @PROFILE_CMT@all:: tune2fs.profiled blkid.profiled e2image.profiled \ + e2undo.profiled mke2fs.profiled dumpe2fs.profiled fsck.profiled \ + logsave.profiled filefrag.profiled uuidgen.profiled uuidd.profiled \ +- e2image.profiled ++ e2image.profiled e4defrag.profiled + + profiled: + @PROFILE_CMT@ $(E) " MKDIR $@" +@@ -191,6 +192,15 @@ e2undo.profiled: $(PROFILED_E2UNDO_OBJS) + $(Q) $(CC) $(ALL_LDFLAGS) -g -pg -o e2undo.profiled \ + $(PROFILED_E2UNDO_OBJS) $(PROFILED_LIBS) $(LIBINTL) + ++e4defrag: $(E4DEFRAG_OBJS) ++ $(E) " LD $@" ++ $(Q) $(CC) $(ALL_LDFLAGS) -o e4defrag $(E4DEFRAG_OBJS) ++ ++e4defrag.profiled: $(PROFILED_E4DEFRAG_OBJS) ++ $(E) " LD $@" ++ $(Q) $(CC) $(ALL_LDFLAGS) -g -pg -o e4defrag.profiled \ ++ $(PROFILED_E4DEFRAG_OBJS) ++ + base_device: base_device.c + $(E) " LD $@" + $(Q) $(CC) $(ALL_CFLAGS) $(ALL_LDFLAGS) $(srcdir)/base_device.c \ +@@ -338,6 +348,10 @@ e2image.8: $(DEP_SUBSTITUTE) $(srcdir)/e + $(E) " SUBST $@" + $(Q) $(SUBSTITUTE_UPTIME) $(srcdir)/e2image.8.in e2image.8 + ++e4defrag.8: $(DEP_SUBSTITUTE) $(srcdir)/e4defrag.8.in ++ $(E) " SUBST $@" ++ $(Q) $(SUBSTITUTE_UPTIME) $(srcdir)/e4defrag.8.in e4defrag.8 ++ + dumpe2fs.8: $(DEP_SUBSTITUTE) $(srcdir)/dumpe2fs.8.in + $(E) " SUBST $@" + $(Q) $(SUBSTITUTE_UPTIME) $(srcdir)/dumpe2fs.8.in dumpe2fs.8 +@@ -394,6 +408,10 @@ installdirs: + $(DESTDIR)$(man1dir) $(DESTDIR)$(man5dir) \ + $(DESTDIR)$(libdir) $(DESTDIR)/$(root_sysconfdir) + ++install-e4defrag: e4defrag e4defrag.8 installdirs ++ $(INSTALL_PROGRAM) e4defrag $(DESTDIR)$(bindir)/e4defrag ++ $(INSTALL_DATA) e4defrag.8 $(DESTDIR)$(man8dir)/e4defrag.8 ++ + install: all $(SMANPAGES) $(UMANPAGES) installdirs + $(Q) for i in $(SPROGS); do \ + echo " INSTALL $(root_sbindir)/$$i"; \ +@@ -551,7 +569,7 @@ clean: + blkid.profiled tune2fs.profiled e2image.profiled \ + e2undo.profiled mke2fs.profiled dumpe2fs.profiled \ + logsave.profiled filefrag.profiled uuidgen.profiled \ +- uuidd.profiled e2image.profiled \ ++ uuidd.profiled e2image.profiled e4defrag \ + profiled/*.o \#* *.s *.o *.a *~ core gmon.out + + mostlyclean: clean +Index: e2fsprogs-1.41.9/configure +=================================================================== +--- e2fsprogs-1.41.9.orig/configure ++++ e2fsprogs-1.41.9/configure +@@ -15790,7 +15790,7 @@ fi + + + +-for ac_func in chflags getrusage llseek lseek64 open64 fstat64 ftruncate64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime setresuid setresgid usleep nanosleep getdtablesize getrlimit ++for ac_func in chflags getrusage llseek lseek64 open64 fstat64 ftruncate64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime setresuid setresgid usleep nanosleep getdtablesize getrlimit sync_file_range posix_fadvise fallocate + do + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` + { $as_echo "$as_me:$LINENO: checking for $ac_func" >&5 +Index: e2fsprogs-1.41.9/configure.in +=================================================================== +--- e2fsprogs-1.41.9.orig/configure.in ++++ e2fsprogs-1.41.9/configure.in +@@ -828,7 +828,7 @@ AC_CHECK_MEMBER(struct sockaddr.sa_len, + [#include + #include ]) + dnl +-AC_CHECK_FUNCS(chflags getrusage llseek lseek64 open64 fstat64 ftruncate64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime setresuid setresgid usleep nanosleep getdtablesize getrlimit) ++AC_CHECK_FUNCS(chflags getrusage llseek lseek64 open64 fstat64 ftruncate64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime setresuid setresgid usleep nanosleep getdtablesize getrlimit sync_file_range posix_fadvise fallocate) + dnl + dnl Check to see if -lsocket is required (solaris) to make something + dnl that uses socket() to compile; this is needed for the UUID library +Index: e2fsprogs-1.41.9/Makefile.in +=================================================================== +--- e2fsprogs-1.41.9.orig/Makefile.in ++++ e2fsprogs-1.41.9/Makefile.in +@@ -57,6 +57,9 @@ clean-doc: + distclean-doc: + -test -d doc && cd doc && $(MAKE) distclean + ++install-e4defrag: subs all-libs-recursive ++ $(MAKE) -C misc install-e4defrag ++ + install: subs all-libs-recursive install-progs-recursive \ + install-shlibs-libs-recursive install-doc-libs + if test ! -d e2fsck && test ! -d debugfs && test ! -d misc && test ! -d ext2ed ; then $(MAKE) install-libs ; fi