f2fs-tools: support inode creation time

This patch supports inode_crtime feature to enable recording inode
creation time in inode layout.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fsck/mount.c b/fsck/mount.c
index fe0d510..54eb061 100644 (file)
--- a/fsck/mount.c
+++ b/fsck/mount.c
@@ -233,6 +233,10 @@ void print_inode_info(struct f2fs_sb_info *sbi,
                        DISP_u32(inode, i_projid);
                if (c.feature & cpu_to_le32(F2FS_FEATURE_INODE_CHKSUM))
                        DISP_u32(inode, i_inode_checksum);
+               if (c.feature & cpu_to_le32(F2FS_FEATURE_INODE_CRTIME)) {
+                       DISP_u64(inode, i_crtime);
+                       DISP_u32(inode, i_crtime_nsec);
+               }
        }
 
        DISP_u32(inode, i_addr[ofs]);           /* Pointers to data blocks */
@@ -453,6 +457,9 @@ void print_sb_state(struct f2fs_super_block *sb)
        if (f & cpu_to_le32(F2FS_FEATURE_QUOTA_INO)) {
                MSG(0, "%s", " quota_ino");
        }
+       if (f & cpu_to_le32(F2FS_FEATURE_INODE_CRTIME)) {
+               MSG(0, "%s", " inode_crtime");
+       }
        MSG(0, "\n");
        MSG(0, "Info: superblock encrypt level = %d, salt = ",
                                        sb->encryption_level);

diff --git a/include/f2fs_fs.h b/include/f2fs_fs.h
index 67f31d8..053ccbe 100644 (file)
--- a/include/f2fs_fs.h
+++ b/include/f2fs_fs.h
@@ -550,6 +550,7 @@ enum {
 #define F2FS_FEATURE_INODE_CHKSUM      0x0020
 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR     0x0040
 #define F2FS_FEATURE_QUOTA_INO         0x0080
+#define F2FS_FEATURE_INODE_CRTIME      0x0100
 
 #define MAX_VOLUME_NAME                512
 
@@ -785,8 +786,10 @@ struct f2fs_inode {
                        __le16 i_inline_xattr_size;     /* inline xattr size, unit: 4 bytes */
                        __le32 i_projid;        /* project id */
                        __le32 i_inode_checksum;/* inode meta checksum */
+                       __le64 i_crtime;        /* creation time */
+                       __le32 i_crtime_nsec;   /* creation time in nano scale */
                        __le32 i_extra_end[0];  /* for attribute size calculation */
-               };
+               } __attribute__((packed));
                __le32 i_addr[DEF_ADDRS_PER_INODE];     /* Pointers to data blocks */
        };
        __le32 i_nid[5];                /* direct(2), indirect(2),

diff --git a/mkfs/f2fs_format.c b/mkfs/f2fs_format.c
index 9d7e180..0fc8b30 100644 (file)
--- a/mkfs/f2fs_format.c
+++ b/mkfs/f2fs_format.c
@@ -1021,6 +1021,11 @@ static int f2fs_write_root_inode(void)
        if (c.feature & cpu_to_le32(F2FS_FEATURE_PRJQUOTA))
                raw_node->i.i_projid = cpu_to_le32(F2FS_DEF_PROJID);
 
+       if (c.feature & cpu_to_le32(F2FS_FEATURE_INODE_CRTIME)) {
+               raw_node->i.i_crtime = cpu_to_le32(time(NULL));
+               raw_node->i.i_crtime_nsec = 0;
+       }
+
        data_blk_nor = get_sb(main_blkaddr) +
                c.cur_seg[CURSEG_HOT_DATA] * c.blks_per_seg;
        raw_node->i.i_addr[get_extra_isize(raw_node)] = cpu_to_le32(data_blk_nor);

diff --git a/mkfs/f2fs_format_main.c b/mkfs/f2fs_format_main.c
index e41bcb1..e522b2f 100644 (file)
--- a/mkfs/f2fs_format_main.c
+++ b/mkfs/f2fs_format_main.c
@@ -92,6 +92,8 @@ static void parse_feature(const char *features)
                c.feature |= cpu_to_le32(F2FS_FEATURE_FLEXIBLE_INLINE_XATTR);
        } else if (!strcmp(features, "quota")) {
                c.feature |= cpu_to_le32(F2FS_FEATURE_QUOTA_INO);
+       } else if (!strcmp(features, "inode_crtime")) {
+               c.feature |= cpu_to_le32(F2FS_FEATURE_INODE_CRTIME);
        } else {
                MSG(0, "Error: Wrong features\n");
                mkfs_usage();
@@ -187,6 +189,11 @@ static void f2fs_parse_options(int argc, char *argv[])
                                "enabled with extra attr feature\n");
                        exit(1);
                }
+               if (c.feature & cpu_to_le32(F2FS_FEATURE_INODE_CRTIME)) {
+                       MSG(0, "\tInfo: inode crtime feature should always been"
+                               "enabled with extra attr feature\n");
+                       exit(1);
+               }
        }
 
        if (optind >= argc) {