]> git.sesse.net Git - bcachefs-tools-debian/blobdiff - cmd_migrate.c
rust: BkeyValC
[bcachefs-tools-debian] / cmd_migrate.c
index 51260906dccd95f71ed71627095dbe187777ba47..5a35c5a178aba004ab4a01c40953ea6113cbecee 100644 (file)
@@ -30,6 +30,7 @@
 #include "libbcachefs/btree_update.h"
 #include "libbcachefs/buckets.h"
 #include "libbcachefs/dirent.h"
+#include "libbcachefs/errcode.h"
 #include "libbcachefs/fs-common.h"
 #include "libbcachefs/inode.h"
 #include "libbcachefs/io.h"
@@ -122,11 +123,12 @@ static void update_inode(struct bch_fs *c,
        struct bkey_inode_buf packed;
        int ret;
 
-       bch2_inode_pack(c, &packed, inode);
+       bch2_inode_pack(&packed, inode);
+       packed.inode.k.p.snapshot = U32_MAX;
        ret = bch2_btree_insert(c, BTREE_ID_inodes, &packed.inode.k_i,
                                NULL, NULL, 0);
        if (ret)
-               die("error updating inode: %s", strerror(-ret));
+               die("error updating inode: %s", bch2_err_str(ret));
 }
 
 static void create_link(struct bch_fs *c,
@@ -138,10 +140,11 @@ static void create_link(struct bch_fs *c,
        struct bch_inode_unpacked inode;
 
        int ret = bch2_trans_do(c, NULL, NULL, 0,
-               bch2_link_trans(&trans, parent->bi_inum, inum,
-                               &parent_u, &inode, &qstr));
+               bch2_link_trans(&trans,
+                               (subvol_inum) { 1, parent->bi_inum }, &parent_u,
+                               (subvol_inum) { 1, inum }, &inode, &qstr));
        if (ret)
-               die("error creating hardlink: %s", strerror(-ret));
+               die("error creating hardlink: %s", bch2_err_str(ret));
 }
 
 static struct bch_inode_unpacked create_file(struct bch_fs *c,
@@ -153,13 +156,16 @@ static struct bch_inode_unpacked create_file(struct bch_fs *c,
        struct qstr qstr = QSTR(name);
        struct bch_inode_unpacked new_inode;
 
+       bch2_inode_init_early(c, &new_inode);
+
        int ret = bch2_trans_do(c, NULL, NULL, 0,
                bch2_create_trans(&trans,
-                                 parent->bi_inum, parent,
+                                 (subvol_inum) { 1, parent->bi_inum }, parent,
                                  &new_inode, &qstr,
-                                 uid, gid, mode, rdev, NULL, NULL));
+                                 uid, gid, mode, rdev, NULL, NULL,
+                                 (subvol_inum) {}, 0));
        if (ret)
-               die("error creating file: %s", strerror(-ret));
+               die("error creating %s: %s", name, bch2_err_str(ret));
 
        return new_inode;
 }
@@ -225,45 +231,49 @@ static void copy_xattrs(struct bch_fs *c, struct bch_inode_unpacked *dst,
                const struct xattr_handler *h = xattr_resolve_name(&attr);
 
                int ret = bch2_trans_do(c, NULL, NULL, 0,
-                               bch2_xattr_set(&trans, dst->bi_inum, &hash_info, attr,
+                               bch2_xattr_set(&trans,
+                                              (subvol_inum) { 1, dst->bi_inum },
+                                              &hash_info, attr,
                                               val, val_size, h->flags, 0));
                if (ret < 0)
-                       die("error creating xattr: %s", strerror(-ret));
+                       die("error creating xattr: %s", bch2_err_str(ret));
        }
 }
 
-static char buf[1 << 20] __aligned(PAGE_SIZE);
+#define WRITE_DATA_BUF (1 << 20)
+
+static char buf[WRITE_DATA_BUF] __aligned(PAGE_SIZE);
 
 static void write_data(struct bch_fs *c,
                       struct bch_inode_unpacked *dst_inode,
                       u64 dst_offset, void *buf, size_t len)
 {
-       struct {
-               struct bch_write_op op;
-               struct bio_vec bv[sizeof(buf) / PAGE_SIZE];
-       } o;
+       struct bch_write_op op;
+       struct bio_vec bv[WRITE_DATA_BUF / PAGE_SIZE];
        struct closure cl;
 
        BUG_ON(dst_offset       & (block_bytes(c) - 1));
        BUG_ON(len              & (block_bytes(c) - 1));
+       BUG_ON(len > WRITE_DATA_BUF);
 
        closure_init_stack(&cl);
 
-       bio_init(&o.op.wbio.bio, o.bv, ARRAY_SIZE(o.bv));
-       bch2_bio_map(&o.op.wbio.bio, buf, len);
+       bio_init(&op.wbio.bio, NULL, bv, ARRAY_SIZE(bv), 0);
+       bch2_bio_map(&op.wbio.bio, buf, len);
 
-       bch2_write_op_init(&o.op, c, bch2_opts_to_inode_opts(c->opts));
-       o.op.write_point        = writepoint_hashed(0);
-       o.op.nr_replicas        = 1;
-       o.op.pos                = POS(dst_inode->bi_inum, dst_offset >> 9);
+       bch2_write_op_init(&op, c, bch2_opts_to_inode_opts(c->opts));
+       op.write_point  = writepoint_hashed(0);
+       op.nr_replicas  = 1;
+       op.subvol       = 1;
+       op.pos          = SPOS(dst_inode->bi_inum, dst_offset >> 9, U32_MAX);
+       op.flags |= BCH_WRITE_SYNC;
 
-       int ret = bch2_disk_reservation_get(c, &o.op.res, len >> 9,
+       int ret = bch2_disk_reservation_get(c, &op.res, len >> 9,
                                            c->opts.data_replicas, 0);
        if (ret)
-               die("error reserving space in new filesystem: %s", strerror(-ret));
+               die("error reserving space in new filesystem: %s", bch2_err_str(ret));
 
-       closure_call(&o.op.cl, bch2_write, NULL, &cl);
-       closure_sync(&cl);
+       closure_call(&op.cl, bch2_write, NULL, &cl);
 
        dst_inode->bi_sectors += len >> 9;
 }
@@ -314,25 +324,24 @@ static void link_data(struct bch_fs *c, struct bch_inode_unpacked *dst,
                e = bkey_extent_init(&k.k);
                e->k.p.inode    = dst->bi_inum;
                e->k.p.offset   = logical + sectors;
+               e->k.p.snapshot = U32_MAX;
                e->k.size       = sectors;
                bch2_bkey_append_ptr(&e->k_i, (struct bch_extent_ptr) {
                                        .offset = physical,
                                        .dev = 0,
-                                       .gen = bucket(ca, b)->mark.gen,
+                                       .gen = *bucket_gen(ca, b),
                                  });
 
                ret = bch2_disk_reservation_get(c, &res, sectors, 1,
                                                BCH_DISK_RESERVATION_NOFAIL);
                if (ret)
                        die("error reserving space in new filesystem: %s",
-                           strerror(-ret));
-
-               bch2_mark_bkey_replicas(c, extent_i_to_s_c(e).s_c);
+                           bch2_err_str(ret));
 
                ret = bch2_btree_insert(c, BTREE_ID_extents, &e->k_i,
                                        &res, NULL, 0);
                if (ret)
-                       die("btree insert error %s", strerror(-ret));
+                       die("btree insert error %s", bch2_err_str(ret));
 
                bch2_disk_reservation_put(c, &res);
 
@@ -428,6 +437,7 @@ static void copy_dir(struct copy_fs_state *s,
 
                if (!strcmp(d->d_name, ".") ||
                    !strcmp(d->d_name, "..") ||
+                   !strcmp(d->d_name, "lost+found") ||
                    stat.st_ino == s->bcachefs_inum)
                        continue;
 
@@ -521,7 +531,7 @@ static ranges reserve_new_fs_space(const char *file_path, unsigned block_size,
 
        struct fiemap_iter iter;
        struct fiemap_extent e;
-       ranges extents = { NULL };
+       ranges extents = { 0 };
 
        fiemap_for_each(fd, iter, e) {
                if (e.fe_flags & (FIEMAP_EXTENT_UNKNOWN|
@@ -569,9 +579,10 @@ static void copy_fs(struct bch_fs *c, int src_fd, const char *src_path,
        syncfs(src_fd);
 
        struct bch_inode_unpacked root_inode;
-       int ret = bch2_inode_find_by_inum(c, BCACHEFS_ROOT_INO, &root_inode);
+       int ret = bch2_inode_find_by_inum(c, (subvol_inum) { 1, BCACHEFS_ROOT_INO },
+                                         &root_inode);
        if (ret)
-               die("error looking up root directory: %s", strerror(-ret));
+               die("error looking up root directory: %s", bch2_err_str(ret));
 
        if (fchdir(src_fd))
                die("chdir error: %m");
@@ -593,10 +604,8 @@ static void copy_fs(struct bch_fs *c, int src_fd, const char *src_path,
 
        update_inode(c, &root_inode);
 
-       darray_free(s.extents);
+       darray_exit(&s.extents);
        genradix_free(&s.hardlinks);
-
-       bch2_alloc_write(c, false);
 }
 
 static void find_superblock_space(ranges extents,
@@ -605,7 +614,7 @@ static void find_superblock_space(ranges extents,
 {
        struct range *i;
 
-       darray_foreach(i, extents) {
+       darray_for_each(extents, i) {
                u64 start = round_up(max(256ULL << 10, i->start),
                                     dev->bucket_size << 9);
                u64 end = round_down(i->end,
@@ -633,7 +642,7 @@ static void migrate_usage(void)
             "      --no_passphrase    Don't encrypt master encryption key\n"
             "  -F                     Force, even if metadata file already exists\n"
             "  -h                     Display this help and exit\n"
-            "Report bugs to <linux-bcache@vger.kernel.org>");
+            "Report bugs to <linux-bcachefs@vger.kernel.org>");
 }
 
 static const struct option migrate_opts[] = {
@@ -672,7 +681,7 @@ static int migrate_fs(const char            *fs_path,
 
        u64 bcachefs_inum;
        ranges extents = reserve_new_fs_space(file_path,
-                               fs_opts.block_size << 9,
+                               fs_opts.block_size >> 9,
                                get_size(dev.path, dev.fd) / 5,
                                &bcachefs_inum, stat.st_dev, force);
 
@@ -683,7 +692,7 @@ static int migrate_fs(const char            *fs_path,
        u64 sb_offset = le64_to_cpu(sb->layout.sb_offset[0]);
 
        if (format_opts.passphrase)
-               bch2_add_key(sb, format_opts.passphrase);
+               bch2_add_key(sb, "user", "user", format_opts.passphrase);
 
        free(sb);
 
@@ -694,16 +703,17 @@ static int migrate_fs(const char          *fs_path,
        opt_set(opts, sb,       sb_offset);
        opt_set(opts, nostart,  true);
        opt_set(opts, noexcl,   true);
+       opt_set(opts, buckets_nouse, true);
 
        c = bch2_fs_open(path, 1, opts);
        if (IS_ERR(c))
-               die("Error opening new filesystem: %s", strerror(-PTR_ERR(c)));
+               die("Error opening new filesystem: %s", bch2_err_str(PTR_ERR(c)));
 
        mark_unreserved_space(c, extents);
 
        int ret = bch2_fs_start(c);
        if (ret)
-               die("Error starting new filesystem: %s", strerror(-ret));
+               die("Error starting new filesystem: %s", bch2_err_str(ret));
 
        copy_fs(c, fs_fd, fs_path, bcachefs_inum, &extents);
 
@@ -715,7 +725,7 @@ static int migrate_fs(const char            *fs_path,
 
        c = bch2_fs_open(path, 1, opts);
        if (IS_ERR(c))
-               die("Error opening new filesystem: %s", strerror(-PTR_ERR(c)));
+               die("Error opening new filesystem: %s", bch2_err_str(PTR_ERR(c)));
 
        bch2_fs_stop(c);
        printf("fsck complete\n");
@@ -790,7 +800,7 @@ static void migrate_superblock_usage(void)
             "  -d device     Device to create superblock for\n"
             "  -o offset     Offset of existing superblock\n"
             "  -h            Display this help and exit\n"
-            "Report bugs to <linux-bcache@vger.kernel.org>");
+            "Report bugs to <linux-bcachefs@vger.kernel.org>");
 }
 
 int cmd_migrate_superblock(int argc, char *argv[])