diff options
| author | Josef Bacik <josef@toxicpanda.com> | 2019-11-14 10:58:35 -0500 |
|---|---|---|
| committer | Eryu Guan <guaneryu@gmail.com> | 2019-12-30 00:07:45 +0800 |
| commit | fd08309295736dce34d7f354f01d168f19afe321 (patch) | |
| tree | 1c953a373c5a15f2f7510e2faa3e58d09654f321 /ltp/fsstress.c | |
| parent | fb769938dcc5e5b118f3465907735087409720f3 (diff) | |
fsstress: add the ability to create snapshots
Snapshots are just fancy subvolumes, add this ability so we can stress
snapshot creation. We get the deletion with SUBVOL_DELETE.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Diffstat (limited to 'ltp/fsstress.c')
| -rw-r--r-- | ltp/fsstress.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/ltp/fsstress.c b/ltp/fsstress.c index 45325a67..ffdfcfee 100644 --- a/ltp/fsstress.c +++ b/ltp/fsstress.c @@ -128,6 +128,7 @@ typedef enum { OP_SETATTR, OP_SETFATTR, OP_SETXATTR, + OP_SNAPSHOT, OP_SPLICE, OP_STAT, OP_SUBVOL_CREATE, @@ -254,6 +255,7 @@ void rmdir_f(int, long); void setattr_f(int, long); void setfattr_f(int, long); void setxattr_f(int, long); +void snapshot_f(int, long); void splice_f(int, long); void stat_f(int, long); void subvol_create_f(int, long); @@ -321,6 +323,7 @@ opdesc_t ops[] = { { OP_SETFATTR, "setfattr", setfattr_f, 2, 1 }, /* set project id (XFS_IOC_FSSETXATTR ioctl) */ { OP_SETXATTR, "setxattr", setxattr_f, 1, 1 }, + { OP_SNAPSHOT, "snapshot", snapshot_f, 1, 1 }, { OP_SPLICE, "splice", splice_f, 1, 1 }, { OP_STAT, "stat", stat_f, 1, 0 }, { OP_SUBVOL_CREATE, "subvol_create", subvol_create_f, 1, 1}, @@ -1902,6 +1905,7 @@ zero_freq(void) #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0])) opty_t btrfs_ops[] = { + OP_SNAPSHOT, OP_SUBVOL_CREATE, OP_SUBVOL_DELETE, }; @@ -4703,6 +4707,55 @@ out: } void +snapshot_f(int opno, long r) +{ +#ifdef HAVE_BTRFSUTIL_H + enum btrfs_util_error e; + pathname_t f; + pathname_t newf; + fent_t *fep; + int id; + int parid; + int v; + int v1; + int err; + + init_pathname(&f); + if (!get_fname(FT_SUBVOLm, r, &f, NULL, &fep, &v)) { + if (v) + printf("%d/%d: snapshot - no subvolume\n", procid, + opno); + free_pathname(&f); + return; + } + init_pathname(&newf); + parid = fep->id; + err = generate_fname(fep, FT_SUBVOL, &newf, &id, &v1); + v |= v1; + if (!err) { + if (v) { + (void)fent_to_name(&f, fep); + printf("%d/%d: snapshot - no filename from %s\n", + procid, opno, f.path); + } + free_pathname(&f); + return; + } + e = btrfs_util_create_snapshot(f.path, newf.path, 0, NULL, NULL); + if (e == BTRFS_UTIL_OK) + add_to_flist(FT_SUBVOL, id, parid, 0); + if (v) { + printf("%d/%d: snapshot %s->%s %d(%s)\n", procid, opno, + f.path, newf.path, e, btrfs_util_strerror(e)); + printf("%d/%d: snapshot add id=%d,parent=%d\n", procid, opno, + id, parid); + } + free_pathname(&newf); + free_pathname(&f); +#endif +} + +void stat_f(int opno, long r) { int e; |