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| author | Changman Lee <cm224.lee@samsung.com> | 2014-11-04 18:10:54 +0900 |
|---|---|---|
| committer | JP Abgrall <jpa@google.com> | 2015-03-23 10:10:26 -0700 |
| commit | 650ad1e30cfa51d4e6db639e3da422385b7f7872 (patch) | |
| tree | 4bed296da7d15d258f5ecfa826dbd9bd93f74d64 /mkfs | |
| parent | 0f736527eb38eae3778b8be81921a9c458ad647f (diff) | |
| download | android_external_f2fs-tools-650ad1e30cfa51d4e6db639e3da422385b7f7872.tar.gz android_external_f2fs-tools-650ad1e30cfa51d4e6db639e3da422385b7f7872.tar.bz2 android_external_f2fs-tools-650ad1e30cfa51d4e6db639e3da422385b7f7872.zip | |
mkfs.f2fs: reclaim free space in case of regular file
If we use regular file instead block device, let's reclaim its free
space.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'mkfs')
| -rw-r--r-- | mkfs/f2fs_format_utils.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/mkfs/f2fs_format_utils.c b/mkfs/f2fs_format_utils.c index 9892a8f..88b9953 100644 --- a/mkfs/f2fs_format_utils.c +++ b/mkfs/f2fs_format_utils.c @@ -6,18 +6,26 @@ * * Dual licensed under the GPL or LGPL version 2 licenses. */ +#define _LARGEFILE_SOURCE #define _LARGEFILE64_SOURCE +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif #include <stdio.h> #include <unistd.h> #include <sys/ioctl.h> #include <sys/stat.h> +#include <fcntl.h> #include "f2fs_fs.h" #ifdef HAVE_LINUX_FS_H #include <linux/fs.h> #endif +#ifdef HAVE_LINUX_FALLOC_H +#include <linux/falloc.h> +#endif int f2fs_trim_device() { @@ -37,9 +45,15 @@ int f2fs_trim_device() #if defined(WITH_BLKDISCARD) && defined(BLKDISCARD) MSG(0, "Info: Discarding device\n"); - if (S_ISREG(stat_buf.st_mode)) + if (S_ISREG(stat_buf.st_mode)) { +#ifdef FALLOC_FL_PUNCH_HOLE + if (fallocate(config.fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, + range[0], range[1]) < 0) { + MSG(0, "Info: fallocate(PUNCH_HOLE|KEEP_SIZE) is failed\n"); + } +#endif return 0; - else if (S_ISBLK(stat_buf.st_mode)) { + } else if (S_ISBLK(stat_buf.st_mode)) { if (ioctl(config.fd, BLKDISCARD, &range) < 0) { MSG(0, "Info: This device doesn't support TRIM\n"); } else { |