#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>
+#include "../version.h"
+
/* A relatively new ioctl interface ... */
#ifndef EXT4_IOC_MOVE_EXT
#define EXT4_IOC_MOVE_EXT _IOWR('f', 15, struct move_extent)
char msg_buffer[PATH_MAX + 1]; /* pathname of the file */
};
-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;
-__u32 blocks_per_group;
-__u32 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
+static char lost_found_dir[PATH_MAX + 1];
+static int block_size;
+static int extents_before_defrag;
+static int extents_after_defrag;
+static int mode_flag;
+static unsigned int current_uid;
+static unsigned int defraged_file_count;
+static unsigned int frag_files_before_defrag;
+static unsigned int frag_files_after_defrag;
+static unsigned int regular_count;
+static unsigned int succeed_cnt;
+static unsigned int total_count;
+static __u8 log_groups_per_flex;
+static __u32 blocks_per_group;
+static __u32 feature_incompat;
+static ext4_fsblk_t files_block_count;
+static struct frag_statistic_ino frag_rank[SHOW_FRAG_FILES];
-/*
- * 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.
+ * We prefer posix_fadvise64 when available, as it allows 64bit offset on
+ * 32bit systems
*/
-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_FALLOCATE64
-#warning Using locally defined fallocate syscall interface.
-
-#ifndef __NR_fallocate
-#error Your kernel headers dont define __NR_fallocate
+#if defined(HAVE_POSIX_FADVISE64)
+#define posix_fadvise posix_fadvise64
+#elif defined(HAVE_FADVISE64)
+#define posix_fadvise fadvise64
+#elif !defined(HAVE_POSIX_FADVISE)
+#error posix_fadvise not available!
#endif
/*
- * fallocate64() - Manipulate file space.
- *
- * @fd: defrag target file's descriptor.
- * @mode: process flag.
- * @offset: file offset.
- * @len: file size.
- */
-static int fallocate64(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.
*
* @file: the file's name.
*/
-static int is_ext4(const char *file, char *devname)
+static int is_ext4(const char *file, char devname[PATH_MAX + 1])
{
int maxlen = 0;
int len, ret;
+ int type_is_ext4 = 0;
FILE *fp = NULL;
- char *mnt_type = NULL;
/* Refer to /etc/mtab */
const char *mtab = MOUNTED;
char file_path[PATH_MAX + 1];
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));
+ type_is_ext4 = !strcmp(mnt->mnt_type, FS_EXT4);
strncpy(lost_found_dir, mnt->mnt_dir, PATH_MAX);
- strncpy(devname, mnt->mnt_fsname, strlen(mnt->mnt_fsname) + 1);
+ strncpy(devname, mnt->mnt_fsname, PATH_MAX);
}
endmntent(fp);
- if (mnt_type && strcmp(mnt_type, FS_EXT4) == 0) {
- FREE(mnt_type);
+ if (type_is_ext4)
return 0;
- } else {
- FREE(mnt_type);
- PRINT_ERR_MSG(NGMSG_EXT4);
- return -1;
- }
+ PRINT_ERR_MSG(NGMSG_EXT4);
+ return -1;
}
/*
{
long pagesize;
void *page = NULL;
- loff_t offset, end_offset, length;
+ ext2_loff_t offset, end_offset, length;
if (vec == NULL || *vec != NULL)
return -1;
if (pagesize < 0)
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;
+ offset = (ext2_loff_t)defrag_data.orig_start * block_size;
+ length = (ext2_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;
*page_num = 0;
*page_num = (length + pagesize - 1) / pagesize;
*vec = (unsigned char *)calloc(*page_num, 1);
- if (*vec == NULL)
+ if (*vec == NULL) {
+ munmap(page, length);
return -1;
+ }
/* Get information on whether pages are in core */
if (mincore(page, (size_t)length, *vec) == -1 ||
SYNC_FILE_RANGE_WRITE |
SYNC_FILE_RANGE_WAIT_AFTER;
unsigned int i;
- loff_t offset;
+ ext2_loff_t offset;
+
+ if (pagesize < 1)
+ return -1;
- offset = (loff_t)defrag_data.orig_start * block_size;
+ offset = (ext2_loff_t)defrag_data.orig_start * block_size;
offset = (offset / pagesize) * pagesize;
+#ifdef HAVE_SYNC_FILE_RANGE
/* Sync file for fadvise process */
if (sync_file_range(fd, offset,
- (loff_t)pagesize * page_num, sync_flag) < 0)
+ (ext2_loff_t)pagesize * page_num, sync_flag) < 0)
return -1;
+#endif
/* Try to release buffer cache which this process used,
* then other process can use the released buffer
offset += pagesize;
continue;
}
- if (posix_fadvise(fd, offset, pagesize, fadvise_flag) < 0) {
+ if ((errno = posix_fadvise(fd, offset,
+ pagesize, fadvise_flag)) != 0) {
if ((mode_flag & DETAIL) && flag) {
perror("\tFailed to fadvise");
flag = 0;
do {
if ((ext_list_tmp->data.physical + ext_list_tmp->data.len)
- != ext_list_tmp->next->data.physical) {
+ != ext_list_tmp->next->data.physical ||
+ (ext_list_tmp->data.logical + ext_list_tmp->data.len)
+ != ext_list_tmp->next->data.logical) {
/* This extent and next extent are not continuous. */
ret++;
}
int ret;
unsigned int flex_bg_num;
- /* Calcuate best extents count */
+ if (blocks_per_group == 0)
+ return 1;
+
if (feature_incompat & EXT4_FEATURE_INCOMPAT_FLEX_BG) {
- flex_bg_num = 1 << log_groups_per_flex;
+ flex_bg_num = 1U << log_groups_per_flex;
ret = ((block_count - 1) /
((ext4_fsblk_t)blocks_per_group *
flex_bg_num)) + 1;
__u64 size_per_ext = 0;
float ratio = 0.0;
ext4_fsblk_t blk_count = 0;
- char msg_buffer[PATH_MAX + 24];
+ char msg_buffer[PATH_MAX + 48];
struct fiemap_extent_list *physical_list_head = NULL;
struct fiemap_extent_list *logical_list_head = NULL;
defraged_file_count++;
+ if (defraged_file_count > total_count)
+ total_count = defraged_file_count;
if (mode_flag & DETAIL) {
if (total_count == 1 && regular_count == 1)
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);
+ "%llu:\tlen %llu\n", count,
+ (unsigned long long)
+ ext_list_tmp->data.physical,
+ (unsigned long long)
+ ext_list_tmp->data.logical,
+ (unsigned long long)
+ ext_list_tmp->data.len);
ext_list_tmp = ext_list_tmp->next;
} while (ext_list_tmp != logical_list_head);
if (current_uid == ROOT_UID) {
if (strlen(file) > 40)
printf("%s\n%50d/%-10d%6llu KB\n",
- file, now_ext_count,
- best_ext_count, size_per_ext);
+ file, now_ext_count,
+ best_ext_count,
+ (unsigned long long) size_per_ext);
else
printf("%-40s%10d/%-10d%6llu KB\n",
- file, now_ext_count,
- best_ext_count, size_per_ext);
+ file, now_ext_count,
+ best_ext_count,
+ (unsigned long long) size_per_ext);
} else {
if (strlen(file) > 40)
printf("%s\n%50d/%-10s%7s\n",
if (mode_flag & DETAIL) {
/* Print statistic info */
- sprintf(msg_buffer, "[%u/%u]%s",
- defraged_file_count, total_count, file);
+ sprintf(msg_buffer, "[%u/%u]%.*s",
+ defraged_file_count, total_count,
+ PATH_MAX, file);
if (current_uid == ROOT_UID) {
if (strlen(msg_buffer) > 40)
printf("\033[79;0H\033[K%s\n"
- "%50d/%-10d%6llu KB\n",
- msg_buffer, now_ext_count,
- best_ext_count, size_per_ext);
+ "%50d/%-10d%6llu KB\n",
+ msg_buffer, now_ext_count,
+ best_ext_count,
+ (unsigned long long) size_per_ext);
else
printf("\033[79;0H\033[K%-40s"
- "%10d/%-10d%6llu KB\n",
- msg_buffer, now_ext_count,
- best_ext_count, size_per_ext);
+ "%10d/%-10d%6llu KB\n",
+ msg_buffer, now_ext_count,
+ best_ext_count,
+ (unsigned long long) size_per_ext);
} else {
if (strlen(msg_buffer) > 40)
printf("\033[79;0H\033[K%s\n%50d/%-10s%7s\n",
* @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)
+static void print_progress(const char *file, ext2_loff_t start,
+ ext2_loff_t file_size)
{
int percent = (start * 100) / file_size;
printf("\033[79;0H\033[K[%u/%u]%s:\t%3d%%",
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;
+ ext2_loff_t start = 0;
unsigned int page_num;
unsigned char *vec = NULL;
int defraged_ret = 0;
struct fiemap_extent_group *orig_group_tmp = NULL;
defraged_file_count++;
+ if (defraged_file_count > total_count)
+ total_count = defraged_file_count;
if (mode_flag & DETAIL) {
printf("[%u/%u]", defraged_file_count, total_count);
goto out;
}
- if (current_uid == ROOT_UID)
- best = get_best_count(blk_count);
- else
- best = 1;
+ best = get_best_count(blk_count);
if (file_frags_start <= best)
goto check_improvement;
/* Allocate space for donor inode */
orig_group_tmp = orig_group_head;
do {
- ret = fallocate64(donor_fd, 0,
- (loff_t)orig_group_tmp->start->data.logical * block_size,
- (loff_t)orig_group_tmp->len * block_size);
+ ret = fallocate(donor_fd, 0,
+ (ext2_loff_t)orig_group_tmp->start->data.logical * block_size,
+ (ext2_loff_t)orig_group_tmp->len * block_size);
if (ret < 0) {
if (mode_flag & DETAIL) {
PRINT_FILE_NAME(file);
goto out;
}
- /* Calcuate donor inode's continuous physical region */
+ /* Calculate donor inode's continuous physical region */
donor_physical_cnt = get_physical_count(donor_list_physical);
/* Change donor extent list from physical to logical */
int i, j, ret = 0;
int flags = FTW_PHYS | FTW_MOUNT;
int arg_type = -1;
+ int mount_dir_len = 0;
int success_flag = 0;
char dir_name[PATH_MAX + 1];
char dev_name[PATH_MAX + 1];
struct stat64 buf;
ext2_filsys fs = NULL;
+ printf("e4defrag %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
+
/* Parse arguments */
if (argc == 1)
goto out;
if (current_uid == ROOT_UID) {
/* Get super block info */
- ret = ext2fs_open(dev_name, 0, 0, block_size,
- unix_io_manager, &fs);
+ ret = ext2fs_open(dev_name, EXT2_FLAG_64BITS, 0,
+ block_size, unix_io_manager, &fs);
if (ret) {
- if (mode_flag & DETAIL) {
- perror("Can't get super block info");
- PRINT_FILE_NAME(argv[i]);
- }
- continue;
+ if (mode_flag & DETAIL)
+ fprintf(stderr,
+ "Warning: couldn't get file "
+ "system details for %s: %s\n",
+ dev_name, error_message(ret));
+ } else {
+ blocks_per_group = fs->super->s_blocks_per_group;
+ feature_incompat = fs->super->s_feature_incompat;
+ log_groups_per_flex = fs->super->s_log_groups_per_flex;
+ ext2fs_close_free(&fs);
}
-
- blocks_per_group = fs->super->s_blocks_per_group;
- feature_incompat = fs->super->s_feature_incompat;
- log_groups_per_flex = fs->super->s_log_groups_per_flex;
-
- ext2fs_close(fs);
}
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") */
+ /* Not the case("e4defrag mount_point_dir") */
if (dir_name[mount_dir_len] != '\0') {
/*
- * "e4defrag mount_piont_dir/lost+found"
- * or "e4defrag mount_piont_dir/lost+found/"
+ * "e4defrag mount_point_dir/lost+found"
+ * or "e4defrag mount_point_dir/lost+found/"
*/
if (strncmp(lost_found_dir, dir_name,
strnlen(lost_found_dir,
continue;
}
- /* "e4defrag mount_piont_dir/else_dir" */
+ /* "e4defrag mount_point_dir/else_dir" */
memset(lost_found_dir, 0, PATH_MAX + 1);
}
+ /* fall through */
case DEVNAME:
if (arg_type == DEVNAME) {
- strncpy(lost_found_dir, dir_name,
- strnlen(dir_name, PATH_MAX));
+ strcpy(lost_found_dir, dir_name);
strncat(lost_found_dir, "/lost+found/",
- PATH_MAX - strnlen(lost_found_dir,
- PATH_MAX));
+ PATH_MAX - strlen(lost_found_dir));
}
nftw64(dir_name, calc_entry_counts, FTW_OPEN_FD, flags);
frag_rank[j].msg_buffer,
frag_rank[j].now_count,
frag_rank[j].best_count,
+ (unsigned long long)
frag_rank[j].
size_per_ext);
} else if (strlen(frag_rank[j].
frag_rank[j].msg_buffer,
frag_rank[j].now_count,
frag_rank[j].best_count,
+ (unsigned long long)
frag_rank[j].
size_per_ext);
} else
100 / files_block_count;
score = CALC_SCORE(files_ratio);
printf("\n Total/best extents\t\t\t\t%d/%d\n"
- " Average size per extent"
- "\t\t\t%llu KB\n"
- " Fragmentation score\t\t\t\t%.0f\n",
- extents_before_defrag,
- extents_after_defrag,
- size_per_ext, score);
+ " Average size per extent"
+ "\t\t\t%llu KB\n"
+ " Fragmentation score\t\t\t\t%.0f\n",
+ extents_before_defrag,
+ extents_after_defrag,
+ (unsigned long long) size_per_ext, score);
printf(" [0-30 no problem:"
" 31-55 a little bit fragmented:"
" 56- needs defrag]\n");
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff