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f2fs_io: support compress blocks ioctls

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Adds to support below three commands to operate reserved blocks
in compressed inode.
- get_cblocks
- release_cblocks
- reserve_cblocks

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2020-03-06 14:38:25 +08:00 committed by Jaegeuk Kim
parent 36053752e8
commit 596408fd82
2 changed files with 84 additions and 0 deletions
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78
tools/f2fs_io/f2fs_io.c
View File

@ -697,6 +697,81 @@ static void do_copy(int argc, char **argv, const struct cmd_desc *cmd)
close(dst_fd);
}
#define get_cblocks_desc "get number of reserved blocks on compress inode"
#define get_cblocks_help "f2fs_io get_cblocks [file]\n\n"
static void do_get_cblocks(int argc, char **argv, const struct cmd_desc *cmd)
{
unsigned long long blkcnt;
int ret, fd;
if (argc != 2) {
fputs("Excess arguments\n\n", stderr);
fputs(cmd->cmd_help, stderr);
exit(1);
}
fd = xopen(argv[1], O_RDONLY, 0);
ret = ioctl(fd, F2FS_IOC_GET_COMPRESS_BLOCKS, &blkcnt);
if (ret < 0)
die_errno("F2FS_IOC_GET_COMPRESS_BLOCKS failed");
printf("%llu\n", blkcnt);
exit(0);
}
#define release_cblocks_desc "release reserved blocks on compress inode"
#define release_cblocks_help "f2fs_io release_cblocks [file]\n\n"
static void do_release_cblocks(int argc, char **argv, const struct cmd_desc *cmd)
{
unsigned long long blkcnt;
int ret, fd;
if (argc != 2) {
fputs("Excess arguments\n\n", stderr);
fputs(cmd->cmd_help, stderr);
exit(1);
}
fd = xopen(argv[1], O_RDONLY, 0);
ret = ioctl(fd, F2FS_IOC_RELEASE_COMPRESS_BLOCKS, &blkcnt);
if (ret < 0)
die_errno("F2FS_IOC_RELEASE_COMPRESS_BLOCKS failed");
printf("%llu\n", blkcnt);
exit(0);
}
#define reserve_cblocks_desc "reserve blocks on compress inode"
#define reserve_cblocks_help "f2fs_io reserve_cblocks [file]\n\n"
static void do_reserve_cblocks(int argc, char **argv, const struct cmd_desc *cmd)
{
unsigned long long blkcnt;
int ret, fd;
if (argc != 2) {
fputs("Excess arguments\n\n", stderr);
fputs(cmd->cmd_help, stderr);
exit(1);
}
fd = xopen(argv[1], O_RDONLY, 0);
ret = ioctl(fd, F2FS_IOC_RESERVE_COMPRESS_BLOCKS, &blkcnt);
if (ret < 0)
die_errno("F2FS_IOC_RESERVE_COMPRESS_BLOCKS failed");
printf("%llu\n", blkcnt);
exit(0);
}
#define CMD_HIDDEN 0x0001
#define CMD(name) { #name, do_##name, name##_desc, name##_help, 0 }
@ -717,6 +792,9 @@ const struct cmd_desc cmd_list[] = {
CMD(gc_urgent),
CMD(defrag_file),
CMD(copy),
CMD(get_cblocks),
CMD(release_cblocks),
CMD(reserve_cblocks),
{ NULL, NULL, NULL, NULL, 0 }
};

6
tools/f2fs_io/f2fs_io.h
View File

@ -68,6 +68,12 @@ typedef u32 __be32;
#define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
#define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
#define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
#define F2FS_IOC_GET_COMPRESS_BLOCKS _IOR(F2FS_IOCTL_MAGIC, 17, __u64)
#define F2FS_IOC_RELEASE_COMPRESS_BLOCKS \
_IOR(F2FS_IOCTL_MAGIC, 18, __u64)
#define F2FS_IOC_RESERVE_COMPRESS_BLOCKS \
_IOR(F2FS_IOCTL_MAGIC, 19, __u64)
#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY