From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 35AEEC25B75 for ; Wed, 29 May 2024 06:40:13 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1sCCyp-0000lU-DK; Wed, 29 May 2024 06:40:11 +0000 Received: from [172.30.29.66] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1sCCyo-0000lJ-HC for linux-f2fs-devel@lists.sourceforge.net; Wed, 29 May 2024 06:40:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: From:References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=SuRRxiuGJEGfQcTEOu1qJB5bWN+HWhwSU2EpQguoMBY=; b=QmOt0VFJE76H+fIJzT9kwgbllD VYdKYaKf2LSzbZi+ZwY5rw9N2u5kPxJ8/Mx9NqZP5UWnhJjRgRupU4dOWHvc7aH78554o2MaqStjD hVbYzwp75PORzS1bLHswSf5Hd8TDhO1t4698wY+sBt5S9wKueVLZze+EvaaN+K+YUvIM=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=SuRRxiuGJEGfQcTEOu1qJB5bWN+HWhwSU2EpQguoMBY=; b=BeDgZ7YMmstu8JTSu89tGn4+bP OMYYMKOxMBvCi8Mk2G/VVe3tZ+A3UAhTDHzS2HinFbup3dJyrWAJfLA44x5J2ZrKELtIibQYqCYCu cUQD32xwcU7EoNeVOgEd38VYZ8ThHyoLNVlALX3kRyu6Bll+ZYnj9I979J0yd8Xgmkik=; Received: from sin.source.kernel.org ([145.40.73.55]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1sCCyn-00017V-TI for linux-f2fs-devel@lists.sourceforge.net; Wed, 29 May 2024 06:40:10 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 078CFCE1674; Wed, 29 May 2024 06:39:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B7B0CC2BD10; Wed, 29 May 2024 06:39:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716964796; bh=Y12mjKCrg5A1QUAaUy4tB38/Ny1qgv0YBLtren9wjc0=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=u8cz26JUqQUFnA0Mv9ojdchkzsqmF77nWAxQ38Kvvgo77Av/7o8TzmsUUQYbEB1k+ Qdm24OcbqB1LggT2vjVg9bYttSkozO6b2xJRu3aBHwyn2TKYlgz9o5NHB4V310W6FA 1AtqiVUJULtBYBOuxsezxEF48KEMoeEah/cldu76B0g09sKjMrByBoqhZnISyPo3af lOZdP9hm/yFeTaRxFkDzz7HsJvH2XZ4yhGuudFh8gJYzVzcMSjcmhFLQraUFhNHVpC hr/60LRkuw5jFaGuHR3ADQr+Hw1qs0GdCu3lTPrjOTCRIkBoSw1T5gZE1nGBiKJV1H 7jtgd0hzjeF6g== Message-ID: Date: Wed, 29 May 2024 14:39:52 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Daniel Rosenberg , linux-f2fs-devel@lists.sourceforge.net References: <20240523224700.265251-1-drosen@google.com> Content-Language: en-US From: Chao Yu In-Reply-To: <20240523224700.265251-1-drosen@google.com> X-Headers-End: 1sCCyn-00017V-TI Subject: Re: [f2fs-dev] [PATCH v4 1/2] dump.f2fs: Add ability to dump folders X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jaegeuk Kim , kernel-team@android.com, Daeho Jeong Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On 2024/5/24 6:46, Daniel Rosenberg wrote: > This adds the ability to dump folders as well as files. Folders are > dumped recursively. Additionally, dumped files/folders may be directed > to a folder specified by -o [path] instead of ./lost_found. The -r flag > will dump the entire fs from the root inode. -f or -y will skip the > prompt before dumping, and -P will preserve the mode/owner info for the > created file/folder. > > Signed-off-by: Daniel Rosenberg > Reviewed-by: Daeho Jeong > --- > fsck/dump.c | 178 ++++++++++++++++++++++++++++++++++++++---------- > fsck/fsck.c | 4 +- > fsck/fsck.h | 4 +- > fsck/main.c | 29 +++++++- > man/dump.f2fs.8 | 17 ++++- > 5 files changed, 190 insertions(+), 42 deletions(-) > > diff --git a/fsck/dump.c b/fsck/dump.c > index b2e990b..fa68456 100644 > --- a/fsck/dump.c > +++ b/fsck/dump.c > @@ -247,7 +247,26 @@ out: > printf("\n"); > } > > -static void dump_data_blk(struct f2fs_sb_info *sbi, __u64 offset, u32 blkaddr) > +static void dump_folder_contents(struct f2fs_sb_info *sbi, u8 *bitmap, > + struct f2fs_dir_entry *dentry, > + __u8 (*filenames)[F2FS_SLOT_LEN], int max) > +{ > + int i; > + int name_len; > + > + for (i = 0; i < max; i++) { > + if (test_bit_le(i, bitmap) == 0) > + continue; > + name_len = le16_to_cpu(dentry[i].name_len); > + if (name_len == 1 && filenames[i][0] == '.') > + continue; > + if (name_len == 2 && filenames[i][0] == '.' && filenames[i][1] == '.') > + continue; > + dump_node(sbi, le32_to_cpu(dentry[i].ino), 1, NULL, 0, 1); > + } > +} > + > +static void dump_data_blk(struct f2fs_sb_info *sbi, __u64 offset, u32 blkaddr, bool is_folder) > { > char buf[F2FS_BLKSIZE]; > > @@ -288,12 +307,19 @@ static void dump_data_blk(struct f2fs_sb_info *sbi, __u64 offset, u32 blkaddr) > ASSERT(ret >= 0); > } > > - /* write blkaddr */ > - dev_write_dump(buf, offset, F2FS_BLKSIZE); > + if (is_folder) { > + struct f2fs_dentry_block *d = (struct f2fs_dentry_block *) buf; > + > + dump_folder_contents(sbi, d->dentry_bitmap, F2FS_DENTRY_BLOCK_DENTRIES(d), > + F2FS_DENTRY_BLOCK_FILENAMES(d), NR_DENTRY_IN_BLOCK); > + } else { > + /* write blkaddr */ > + dev_write_dump(buf, offset, F2FS_BLKSIZE); > + } > } > > static void dump_node_blk(struct f2fs_sb_info *sbi, int ntype, > - u32 nid, u32 addr_per_block, u64 *ofs) > + u32 nid, u32 addr_per_block, u64 *ofs, int is_dir) > { > struct node_info ni; > struct f2fs_node *node_blk; > @@ -330,20 +356,20 @@ static void dump_node_blk(struct f2fs_sb_info *sbi, int ntype, > switch (ntype) { > case TYPE_DIRECT_NODE: > dump_data_blk(sbi, *ofs * F2FS_BLKSIZE, > - le32_to_cpu(node_blk->dn.addr[i])); > + le32_to_cpu(node_blk->dn.addr[i]), is_dir); > (*ofs)++; > break; > case TYPE_INDIRECT_NODE: > dump_node_blk(sbi, TYPE_DIRECT_NODE, > le32_to_cpu(node_blk->in.nid[i]), > addr_per_block, > - ofs); > + ofs, is_dir); > break; > case TYPE_DOUBLE_INDIRECT_NODE: > dump_node_blk(sbi, TYPE_INDIRECT_NODE, > le32_to_cpu(node_blk->in.nid[i]), > addr_per_block, > - ofs); > + ofs, is_dir); > break; > } > } > @@ -435,8 +461,9 @@ static int dump_inode_blk(struct f2fs_sb_info *sbi, u32 nid, > u32 i = 0; > u64 ofs = 0; > u32 addr_per_block; > + bool is_dir = S_ISDIR(le16_to_cpu(node_blk->i.i_mode)); > > - if((node_blk->i.i_inline & F2FS_INLINE_DATA)) { > + if ((node_blk->i.i_inline & F2FS_INLINE_DATA)) { > DBG(3, "ino[0x%x] has inline data!\n", nid); > /* recover from inline data */ > dev_write_dump(((unsigned char *)node_blk) + INLINE_DATA_OFFSET, > @@ -444,13 +471,25 @@ static int dump_inode_blk(struct f2fs_sb_info *sbi, u32 nid, > return -1; > } > > + if ((node_blk->i.i_inline & F2FS_INLINE_DENTRY)) { > + void *inline_dentry = inline_data_addr(node_blk); > + struct f2fs_dentry_ptr d; > + > + make_dentry_ptr(&d, node_blk, inline_dentry, 2); > + > + DBG(3, "ino[0x%x] has inline dentries!\n", nid); > + /* recover from inline dentry */ > + dump_folder_contents(sbi, d.bitmap, d.dentry, d.filename, d.max); > + return -1; > + } > + > c.show_file_map_max_offset = f2fs_max_file_offset(&node_blk->i); > addr_per_block = ADDRS_PER_BLOCK(&node_blk->i); > > /* check data blocks in inode */ > for (i = 0; i < ADDRS_PER_INODE(&node_blk->i); i++, ofs++) > dump_data_blk(sbi, ofs * F2FS_BLKSIZE, le32_to_cpu( > - node_blk->i.i_addr[get_extra_isize(node_blk) + i])); > + node_blk->i.i_addr[get_extra_isize(node_blk) + i]), is_dir); > > /* check node blocks in inode */ > for (i = 0; i < 5; i++) { > @@ -458,17 +497,20 @@ static int dump_inode_blk(struct f2fs_sb_info *sbi, u32 nid, > dump_node_blk(sbi, TYPE_DIRECT_NODE, > le32_to_cpu(F2FS_INODE_I_NID(&node_blk->i, i)), > addr_per_block, > - &ofs); > + &ofs, > + is_dir); > else if (i == 2 || i == 3) > dump_node_blk(sbi, TYPE_INDIRECT_NODE, > le32_to_cpu(F2FS_INODE_I_NID(&node_blk->i, i)), > addr_per_block, > - &ofs); > + &ofs, > + is_dir); > else if (i == 4) > dump_node_blk(sbi, TYPE_DOUBLE_INDIRECT_NODE, > le32_to_cpu(F2FS_INODE_I_NID(&node_blk->i, i)), > addr_per_block, > - &ofs); > + &ofs, > + is_dir); > else > ASSERT(0); > } > @@ -479,8 +521,51 @@ static int dump_inode_blk(struct f2fs_sb_info *sbi, u32 nid, > return 0; > } > > -static int dump_file(struct f2fs_sb_info *sbi, struct node_info *ni, > - struct f2fs_node *node_blk, int force) > +static void dump_file(struct f2fs_sb_info *sbi, struct node_info *ni, > + struct f2fs_node *node_blk, char *path) > +{ > + struct f2fs_inode *inode = &node_blk->i; > + int ret; > + > + c.dump_fd = open(path, O_TRUNC|O_CREAT|O_RDWR, 0666); > + ASSERT(c.dump_fd >= 0); > + > + /* dump file's data */ > + dump_inode_blk(sbi, ni->ino, node_blk); > + > + /* adjust file size */ > + ret = ftruncate(c.dump_fd, le32_to_cpu(inode->i_size)); > + ASSERT(ret >= 0); > + > + close(c.dump_fd); > +} > + > +static void dump_folder(struct f2fs_sb_info *sbi, struct node_info *ni, > + struct f2fs_node *node_blk, char *path, int is_root) > +{ > + if (!is_root) { > +#if defined(__MINGW32__) > + if (mkdir(path) < 0 && errno != EEXIST) { > + MSG(0, "Failed to create directory %s\n", path); > + return; > + } > +#else > + if (mkdir(path, 0777) < 0 && errno != EEXIST) { > + MSG(0, "Failed to create directory %s\n", path); > + return; > + } > +#endif > + ASSERT(chdir(path) == 0); > + } > + /* dump folder data */ > + dump_inode_blk(sbi, ni->ino, node_blk); > + if (!is_root) > + ASSERT(chdir("..") == 0); > +} > + > +static int dump_filesystem(struct f2fs_sb_info *sbi, struct node_info *ni, > + struct f2fs_node *node_blk, int force, char *base_path, > + bool is_base, bool allow_folder) > { > struct f2fs_inode *inode = &node_blk->i; > u32 imode = le16_to_cpu(inode->i_mode); > @@ -489,6 +574,7 @@ static int dump_file(struct f2fs_sb_info *sbi, struct node_info *ni, > char path[1024] = {0}; > char ans[255] = {0}; > int is_encrypted = file_is_encrypt(inode); > + int is_root = sbi->root_ino_num == ni->nid; > int ret; > > if (is_encrypted) { > @@ -496,11 +582,15 @@ static int dump_file(struct f2fs_sb_info *sbi, struct node_info *ni, > return -1; > } > > - if ((!S_ISREG(imode) && !S_ISLNK(imode)) || > - namelen == 0 || namelen > F2FS_NAME_LEN) { > - MSG(force, "Not a regular file or wrong name info\n\n"); > + if ((!S_ISREG(imode) && !S_ISLNK(imode) && !(S_ISDIR(imode) && allow_folder))) { > + MSG(force, "Not a valid file type\n\n"); > + return -1; > + } > + if (!is_root && (namelen == 0 || namelen > F2FS_NAME_LEN)) { > + MSG(force, "Wrong name info\n\n"); > return -1; > } > + base_path = base_path ?: "./lost_found"; > if (force) > goto dump; > > @@ -508,31 +598,49 @@ static int dump_file(struct f2fs_sb_info *sbi, struct node_info *ni, > if (c.show_file_map) > return dump_inode_blk(sbi, ni->ino, node_blk); > > - printf("Do you want to dump this file into ./lost_found/? [Y/N] "); > + printf("Do you want to dump this %s into %s/? [Y/N] ", > + S_ISREG(imode) || S_ISLNK(imode) ? "file" : "folder", > + base_path); > ret = scanf("%s", ans); > ASSERT(ret >= 0); > > if (!strcasecmp(ans, "y")) { > dump: > - ret = system("mkdir -p ./lost_found"); > - ASSERT(ret >= 0); > - > - /* make a file */ > - strncpy(name, (const char *)inode->i_name, namelen); > - name[namelen] = 0; > - sprintf(path, "./lost_found/%s", name); > + if (is_base) { > + ASSERT(getcwd(path, sizeof(path)) != NULL); > +#if defined(__MINGW32__) > + ret = mkdir(base_path); > +#else > + ret = mkdir(base_path, 0777); > +#endif > > - c.dump_fd = open(path, O_TRUNC|O_CREAT|O_RDWR, 0666); > - ASSERT(c.dump_fd >= 0); > + ASSERT(ret == 0 || errno == EEXIST); > + ASSERT(chdir(base_path) == 0); > + } > > - /* dump file's data */ > - dump_inode_blk(sbi, ni->ino, node_blk); > + /* make a file */ > + if (!is_root) { > + strncpy(name, (const char *)inode->i_name, namelen); > + name[namelen] = 0; > + } > > - /* adjust file size */ > - ret = ftruncate(c.dump_fd, le32_to_cpu(inode->i_size)); > - ASSERT(ret >= 0); > + if (S_ISREG(imode) || S_ISLNK(imode)) { > + dump_file(sbi, ni, node_blk, name); > + } else { > + dump_folder(sbi, ni, node_blk, name, is_root); > + } > > - close(c.dump_fd); > +#if !defined(__MINGW32__) > + /* fix up mode/owner */ > + if (c.preserve_perms) { > + if (is_root) > + strncpy(name, ".", 2); > + ASSERT(chmod(name, imode) == 0); > + ASSERT(chown(name, inode->i_uid, inode->i_gid) == 0); > + } > +#endif > + if (is_base) > + ASSERT(chdir(path) == 0); > } > return 0; > } > @@ -582,7 +690,7 @@ void dump_node_scan_disk(struct f2fs_sb_info *sbi, nid_t nid) > free(node_blk); > } > > -int dump_node(struct f2fs_sb_info *sbi, nid_t nid, int force) > +int dump_node(struct f2fs_sb_info *sbi, nid_t nid, int force, char *base_path, int base, int allow_folder) > { > struct node_info ni; > struct f2fs_node *node_blk; > @@ -617,7 +725,7 @@ int dump_node(struct f2fs_sb_info *sbi, nid_t nid, int force) > print_node_info(sbi, node_blk, force); > > if (ni.ino == ni.nid) > - ret = dump_file(sbi, &ni, node_blk, force); > + ret = dump_filesystem(sbi, &ni, node_blk, force, base_path, base, allow_folder); > } else { > print_node_info(sbi, node_blk, force); > MSG(force, "Invalid (i)node block\n\n"); > diff --git a/fsck/fsck.c b/fsck/fsck.c > index 5d345d0..7400dcf 100644 > --- a/fsck/fsck.c > +++ b/fsck/fsck.c > @@ -1651,7 +1651,7 @@ static void print_dentry(struct f2fs_sb_info *sbi, __u8 *name, > d = d->next; > } > printf("/%s", new); > - if (dump_node(sbi, le32_to_cpu(dentry[idx].ino), 0)) > + if (dump_node(sbi, le32_to_cpu(dentry[idx].ino), 0, NULL, 0, 0)) > printf("\33[2K\r"); > } else { > for (i = 1; i < depth; i++) > @@ -3632,7 +3632,7 @@ int fsck_verify(struct f2fs_sb_info *sbi) > if (!strcasecmp(ans, "y")) { > for (i = 0; i < fsck->nr_nat_entries; i++) { > if (f2fs_test_bit(i, fsck->nat_area_bitmap)) > - dump_node(sbi, i, 1); > + dump_node(sbi, i, 1, NULL, 1, 0); > } > } > } > diff --git a/fsck/fsck.h b/fsck/fsck.h > index f5282e2..6cac926 100644 > --- a/fsck/fsck.h > +++ b/fsck/fsck.h > @@ -270,12 +270,14 @@ struct dump_option { > int end_ssa; > int32_t blk_addr; > nid_t scan_nid; > + int use_root_nid; > + char *base_path; > }; > > extern void nat_dump(struct f2fs_sb_info *, nid_t, nid_t); > extern void sit_dump(struct f2fs_sb_info *, unsigned int, unsigned int); > extern void ssa_dump(struct f2fs_sb_info *, int, int); > -extern int dump_node(struct f2fs_sb_info *, nid_t, int); > +extern int dump_node(struct f2fs_sb_info *, nid_t, int, char *, int, int); > extern int dump_info_from_blkaddr(struct f2fs_sb_info *, u32); > extern unsigned int start_bidx_of_node(unsigned int, struct f2fs_node *); > extern void dump_node_scan_disk(struct f2fs_sb_info *sbi, nid_t nid); > diff --git a/fsck/main.c b/fsck/main.c > index c4d0956..6edc902 100644 > --- a/fsck/main.c > +++ b/fsck/main.c > @@ -34,7 +34,7 @@ struct f2fs_fsck gfsck; > > INIT_FEATURE_TABLE; > > -#ifdef WITH_SLOAD > +#if defined(WITH_SLOAD) || defined(WITH_DUMP) > static char *absolute_path(const char *file) > { > char *ret; > @@ -384,7 +384,7 @@ void f2fs_parse_options(int argc, char *argv[]) > } > } else if (!strcmp("dump.f2fs", prog)) { > #ifdef WITH_DUMP > - const char *option_string = "d:i:I:n:Ms:Sa:b:V"; > + const char *option_string = "d:fi:I:n:Mo:Prs:Sa:b:Vy"; > static struct dump_option dump_opt = { > .nid = 0, /* default root ino */ > .start_nat = -1, > @@ -395,6 +395,8 @@ void f2fs_parse_options(int argc, char *argv[]) > .end_ssa = -1, > .blk_addr = -1, > .scan_nid = 0, > + .use_root_nid = 0, > + .base_path = NULL, > }; > > c.func = DUMP; > @@ -456,6 +458,24 @@ void f2fs_parse_options(int argc, char *argv[]) > ret = sscanf(optarg, "%x", > &dump_opt.blk_addr); > break; > + case 'y': > + case 'f': > + c.force = 1; > + break; > + case 'r': > + dump_opt.use_root_nid = 1; > + break; > + case 'o': > + dump_opt.base_path = absolute_path(optarg); > + break; > + case 'P': > +#if defined(__MINGW32__) > + MSG(0, "-P not supported for Windows\n"); > + err = EWRONG_OPT; > +#else > + c.preserve_perms = 1; > +#endif > + break; > case 'V': > show_version(prog); > exit(0); > @@ -914,6 +934,9 @@ static void do_dump(struct f2fs_sb_info *sbi) > struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); > u32 flag = le32_to_cpu(ckpt->ckpt_flags); > > + if (opt->use_root_nid) > + opt->nid = sbi->root_ino_num; > + > if (opt->end_nat == -1) > opt->end_nat = NM_I(sbi)->max_nid; > if (opt->end_sit == -1) > @@ -929,7 +952,7 @@ static void do_dump(struct f2fs_sb_info *sbi) > if (opt->blk_addr != -1) > dump_info_from_blkaddr(sbi, opt->blk_addr); > if (opt->nid) > - dump_node(sbi, opt->nid, 0); > + dump_node(sbi, opt->nid, c.force, opt->base_path, 1, 1); > if (opt->scan_nid) > dump_node_scan_disk(sbi, opt->scan_nid); > > diff --git a/man/dump.f2fs.8 b/man/dump.f2fs.8 > index 94bf5f3..60d6783 100644 > --- a/man/dump.f2fs.8 > +++ b/man/dump.f2fs.8 > @@ -44,7 +44,8 @@ is used to retrieve f2fs metadata (usually in a disk partition). > \fIdevice\fP is the special file corresponding to the device (e.g. > \fI/dev/sdXX\fP). > > -Currently, it can retrieve 1) a file given its inode number, 2) NAT > +Currently, it can retrieve 1) a file or folder given its inode number > +(folders are dumped recursively), 2) NAT > entries into a file, 3) SIT entries into a file, 4) SSA entries into > a file, 5) reverse information from the given block address. > .PP > @@ -56,6 +57,20 @@ is 0 on success and -1 on failure. > .BI \-i " inode number" > Specify an inode number to dump out. > .TP > +.BI \-r > +Dump out from the root inode. > +.TP > +.BI \-f > +Do not prompt before dumping > +.TP > +.BI \-y > +Alias for \-f > +.TP > +.BI \-o " path" > +Dump inodes to the given path > +.BI \-P > +Preserve mode/owner/group for dumped inode > +.TP It needs to update dump_usage() as well. Seems f2fs mailing list is out-of-response previously, so I resend it. Thanks, > .BI \-I " inode number" > Specify an inode number and scan full disk to dump out, include history inode block > .TP > > base-commit: 5da4e5241503b385e4a7e75b1b2bb3367b38be96 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel