[e2fsprogs] - Install e4defrag for testing
Eric Sandeen
sandeen at fedoraproject.org
Wed Oct 6 17:40:22 UTC 2010
commit 7698e77296af89943fecffe9175b5b835793570a
Author: Eric Sandeen <sandeen at redhat.com>
Date: Wed Oct 6 12:40:26 2010 -0500
- Install e4defrag for testing
e2fsprogs-1.41.12-e4defrag.patch | 2366 ++++++++++++++++++++++++++++++++++++++
e2fsprogs.spec | 10 +-
2 files changed, 2375 insertions(+), 1 deletions(-)
---
diff --git a/e2fsprogs-1.41.12-e4defrag.patch b/e2fsprogs-1.41.12-e4defrag.patch
new file mode 100644
index 0000000..16171cd
--- /dev/null
+++ b/e2fsprogs-1.41.12-e4defrag.patch
@@ -0,0 +1,2366 @@
+Index: e2fsprogs-1.41.12/configure
+===================================================================
+--- e2fsprogs-1.41.12.orig/configure
++++ e2fsprogs-1.41.12/configure
+@@ -10647,7 +10647,7 @@ if test "$ac_res" != no; then :
+ fi
+
+ fi
+-for ac_func in chflags getrusage llseek lseek64 open64 fstat64 ftruncate64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime setresuid setresgid usleep nanosleep getdtablesize getrlimit blkid_probe_get_topology
++for ac_func in chflags getrusage llseek lseek64 open64 fstat64 ftruncate64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime setresuid setresgid usleep nanosleep getdtablesize getrlimit sync_file_range posix_fadvise fallocate blkid_probe_get_topology
+ do :
+ as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+Index: e2fsprogs-1.41.12/configure.in
+===================================================================
+--- e2fsprogs-1.41.12.orig/configure.in
++++ e2fsprogs-1.41.12/configure.in
+@@ -853,7 +853,7 @@ if test -n "$BLKID_CMT"; then
+ AC_SEARCH_LIBS([blkid_probe_all], [blkid])
+ fi
+ 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 blkid_probe_get_topology)
++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 blkid_probe_get_topology)
+ 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-1.41.12/misc/Makefile.in
+===================================================================
+--- e2fsprogs-1.41.12.orig/misc/Makefile.in
++++ e2fsprogs-1.41.12/misc/Makefile.in
+@@ -11,6 +11,9 @@ INSTALL = @INSTALL@
+
+ @MCONFIG@
+
++ at LINUX_CMT@E4DEFRAG_PROG= e4defrag
++ at LINUX_CMT@E4DEFRAG_MAN= e4defrag.8
++
+ @IMAGER_CMT at E2IMAGE_PROG= e2image
+ @IMAGER_CMT at E2IMAGE_MAN= e2image.8
+
+@@ -25,10 +28,10 @@ INSTALL = @INSTALL@
+
+ SPROGS= mke2fs badblocks tune2fs dumpe2fs $(BLKID_PROG) logsave \
+ $(E2IMAGE_PROG) @FSCK_PROG@ e2undo
+-USPROGS= mklost+found filefrag e2freefrag $(UUIDD_PROG)
++USPROGS= mklost+found filefrag e2freefrag e4defrag $(UUIDD_PROG)
+ SMANPAGES= tune2fs.8 mklost+found.8 mke2fs.8 dumpe2fs.8 badblocks.8 \
+ e2label.8 $(FINDFS_MAN) $(BLKID_MAN) $(E2IMAGE_MAN) \
+- logsave.8 filefrag.8 e2freefrag.8 e2undo.8 $(UUIDD_MAN) @FSCK_MAN@
++ logsave.8 filefrag.8 e2freefrag.8 e4defrag.8 e2undo.8 $(UUIDD_MAN) @FSCK_MAN@
+ FMANPAGES= mke2fs.conf.5
+
+ UPROGS= chattr lsattr @UUID_CMT@ uuidgen
+@@ -50,6 +53,7 @@ FSCK_OBJS= fsck.o base_device.o ismounte
+ BLKID_OBJS= blkid.o
+ FILEFRAG_OBJS= filefrag.o
+ E2UNDO_OBJS= e2undo.o
++E4DEFRAG_OBJS= e4defrag.o
+ E2FREEFRAG_OBJS= e2freefrag.o
+
+ PROFILED_TUNE2FS_OBJS= profiled/tune2fs.o profiled/util.o
+@@ -68,7 +72,7 @@ PROFILED_FSCK_OBJS= profiled/fsck.o prof
+ PROFILED_BLKID_OBJS= profiled/blkid.o
+ PROFILED_FILEFRAG_OBJS= profiled/filefrag.o
+ PROFILED_E2UNDO_OBJS= profiled/e2undo.o
+-
++PROFILED_E4DEFRAG_OBJS= profiled/e4defrag.o
+
+ XTRA_CFLAGS= -I$(srcdir)/../e2fsck -I.
+
+@@ -99,12 +103,12 @@ 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_PROG)
+
+ @PROFILE_CMT at 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 +195,15 @@ e2undo.profiled: $(PROFILED_E2UNDO_OBJS)
+ $(Q) $(CC) $(ALL_LDFLAGS) -g -pg -o e2undo.profiled \
+ $(PROFILED_E2UNDO_OBJS) $(PROFILED_LIBS) $(LIBINTL)
+
++e4defrag: $(E4DEFRAG_OBJS) $(DEPLIBS)
++ $(E) " LD $@"
++ $(Q) $(CC) $(ALL_LDFLAGS) -o e4defrag $(E4DEFRAG_OBJS) $(LIBS)
++
++e4defrag.profiled: $(PROFILED_E4DEFRAG_OBJS) $(PROFILED_DEPLIBS)
++ $(E) " LD $@"
++ $(Q) $(CC) $(ALL_LDFLAGS) -g -pg -o e4defrag.profiled \
++ $(PROFILED_E4DEFRAG_OBJS) $(PROFILED_LIBS)
++
+ base_device: base_device.c
+ $(E) " LD $@"
+ $(Q) $(CC) $(ALL_CFLAGS) $(ALL_LDFLAGS) $(srcdir)/base_device.c \
+@@ -338,6 +351,10 @@ 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
+Index: e2fsprogs-1.41.12/misc/e4defrag.8.in
+===================================================================
+--- /dev/null
++++ e2fsprogs-1.41.12/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 <a-fujita at rs.jp.nec.com> and Takashi Sato
++<t-sato at yk.jp.nec.com>.
++.SH SEE ALSO
++.BR mke2fs (8),
++.BR mount (8).
++
+Index: e2fsprogs-1.41.12/misc/e4defrag.c
+===================================================================
+--- /dev/null
++++ e2fsprogs-1.41.12/misc/e4defrag.c
+@@ -0,0 +1,2168 @@
++/*
++ * e4defrag.c - ext4 filesystem defragmenter
++ *
++ * Copyright (C) 2009 NEC Software Tohoku, Ltd.
++ *
++ * Author: Akira Fujita <a-fujita at rs.jp.nec.com>
++ * Takashi Sato <t-sato at yk.jp.nec.com>
++ */
++
++#ifndef _LARGEFILE_SOURCE
++#define _LARGEFILE_SOURCE
++#endif
++
++#ifndef _LARGEFILE64_SOURCE
++#define _LARGEFILE64_SOURCE
++#endif
++
++#ifndef _GNU_SOURCE
++#define _GNU_SOURCE
++#endif
++
++#include <ctype.h>
++#include <dirent.h>
++#include <endian.h>
++#include <errno.h>
++#include <fcntl.h>
++#include <ftw.h>
++#include <limits.h>
++#include <mntent.h>
++#include <stdio.h>
++#include <stdlib.h>
++#include <string.h>
++#include <unistd.h>
++#include <ext2fs/ext2_types.h>
++#include <ext2fs/ext2fs.h>
++#include <linux/fs.h>
++#include <sys/ioctl.h>
++#include <ext2fs/fiemap.h>
++#include <sys/mman.h>
++#include <sys/stat.h>
++#include <sys/statfs.h>
++#include <sys/syscall.h>
++#include <sys/vfs.h>
++
++/* 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("<File>\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",
++ "<File>", "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;
++ int test = 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, "vctest")) != EOF) {
++ switch (opt) {
++ case 'v':
++ mode_flag |= DETAIL;
++ break;
++ case 'c':
++ mode_flag |= STATISTIC;
++ break;
++ case 't':
++ case 'e':
++ case 's':
++ test++;
++ break;
++ default:
++ goto out;
++ }
++ }
++
++ if (argc == optind)
++ goto out;
++
++ if (test < 4) {
++ printf("**************************************************\n");
++ printf("This is a release only for testing, and bugs may\n");
++ printf("which could corrupt your data. Please invoke\n");
++ printf("with \"-test\" if you wish to use it at this time.\n");
++ printf("**************************************************\n");
++ 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",
++ "<File>", "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",
++ "<Fragmented files>", "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);
++}
++
diff --git a/e2fsprogs.spec b/e2fsprogs.spec
index 62c5a45..e48d7ff 100644
--- a/e2fsprogs.spec
+++ b/e2fsprogs.spec
@@ -4,7 +4,7 @@
Summary: Utilities for managing ext2, ext3, and ext4 filesystems
Name: e2fsprogs
Version: 1.41.12
-Release: 5%{?dist}
+Release: 6%{?dist}
# License tags based on COPYING file distinctions for various components
License: GPLv2
@@ -15,6 +15,7 @@ Source1: ext2_types-wrapper.h
Patch1: e2fsprogs-1.40.4-sb_feature_check_ignore.patch
Patch2: e2fpsrogs-1.41.12-EOFBLOCKS-test.patch
Patch3: e2fsprogs-1.41.12-relax-resize2fs-P.patch
+Patch4: e2fsprogs-1.41.12-e4defrag.patch
Url: http://e2fsprogs.sourceforge.net/
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -154,6 +155,8 @@ It was originally inspired by the Multics SubSystem library.
%patch2 -p1 -b .EOFBLOCKS
# relax resize2fs -P requirements a bit
%patch3 -p1 -b .resize2fs
+# e4defrag for testing
+%patch4 -p1
%build
%configure --enable-elf-shlibs --enable-nls --disable-uuidd --disable-fsck \
@@ -233,6 +236,7 @@ exit 0
%{_root_sbindir}/tune2fs
%{_sbindir}/filefrag
%{_sbindir}/e2freefrag
+%{_sbindir}/e4defrag
%{_sbindir}/mklost+found
%{_bindir}/chattr
@@ -249,6 +253,7 @@ exit 0
%{_mandir}/man8/e2fsck.8*
%{_mandir}/man8/filefrag.8*
%{_mandir}/man8/e2freefrag.8*
+%{_mandir}/man8/e4defrag.8*
%{_mandir}/man8/fsck.ext2.8*
%{_mandir}/man8/fsck.ext3.8*
%{_mandir}/man8/fsck.ext4.8*
@@ -318,6 +323,9 @@ exit 0
%{_libdir}/pkgconfig/ss.pc
%changelog
+* Wed Oct 06 2010 Eric Sandeen <sandeen at redhat.com> 1.41.12-6
+- Install e4defrag for testing
+
* Mon Jul 13 2010 Eric Sandeen <sandeen at redhat.com> 1.41.12-5
- Relax fsck requirements for resize2fs -P
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