From: Chao Yu <[email protected]> Support 'gc' sub command to trigger filesystem GC via ioctl in f2fs.
Signed-off-by: Chao Yu <[email protected]> --- man/f2fs_io.8 | 3 +++ tools/f2fs_io/f2fs_io.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/man/f2fs_io.8 b/man/f2fs_io.8 index af7325a..33789c2 100644 --- a/man/f2fs_io.8 +++ b/man/f2fs_io.8 @@ -132,6 +132,9 @@ Release compressed blocks to get free space. .TP \fBreserve_cblocks\fR \fI[file]\fR Reserve free blocks to prepare decompressing blocks in the file. +.TP +\fBgc\fR \fI[sync_mode] [file]\fR +Trigger filesystem GC .SH AUTHOR This version of .B f2fs_io diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c index e735983..5be7b9e 100644 --- a/tools/f2fs_io/f2fs_io.c +++ b/tools/f2fs_io/f2fs_io.c @@ -1270,6 +1270,33 @@ static void do_rename(int argc, char **argv, const struct cmd_desc *cmd) exit(0); } +#define gc_desc "trigger filesystem GC" +#define gc_help "f2fs_io gc sync_mode [file_path]\n\n" + +static void do_gc(int argc, char **argv, const struct cmd_desc *cmd) +{ + u32 sync; + int ret, fd; + + if (argc != 3) { + fputs("Excess arguments\n\n", stderr); + fputs(cmd->cmd_help, stderr); + exit(1); + } + + sync = atoi(argv[1]); + + fd = xopen(argv[2], O_RDONLY, 0); + + ret = ioctl(fd, F2FS_IOC_GARBAGE_COLLECT, &sync); + if (ret < 0) + die_errno("F2FS_IOC_GARBAGE_COLLECT failed"); + + printf("trigger %s gc ret=%d\n", + sync ? "synchronous" : "asynchronous", ret); + exit(0); +} + #define CMD_HIDDEN 0x0001 #define CMD(name) { #name, do_##name, name##_desc, name##_help, 0 } #define _CMD(name) { #name, do_##name, NULL, NULL, CMD_HIDDEN } @@ -1301,6 +1328,7 @@ const struct cmd_desc cmd_list[] = { CMD(compress), CMD(get_filename_encrypt_mode), CMD(rename), + CMD(gc), { NULL, NULL, NULL, NULL, 0 } }; -- 2.25.1 _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
