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Subject[PATCH] f2fs-tools: support inode creation time
Date
This patch supports inode_crtime feature to enable recording inode
creation time in inode layout.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
fsck/mount.c | 7 +++++++
include/f2fs_fs.h | 3 +++
mkfs/f2fs_format.c | 5 +++++
mkfs/f2fs_format_main.c | 7 +++++++
4 files changed, 22 insertions(+)

diff --git a/fsck/mount.c b/fsck/mount.c
index 0a5b986..f264571 100644
--- 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..7d136f3 100644
--- 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

@@ -785,6 +786,8 @@ 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 */
};
__le32 i_addr[DEF_ADDRS_PER_INODE]; /* Pointers to data blocks */
diff --git a/mkfs/f2fs_format.c b/mkfs/f2fs_format.c
index 9d7e180..0fc8b30 100644
--- 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
--- 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) {
--
2.14.1.145.gb3622a4ee
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