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Make inode extra time fields updating logic more closer to linux.

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Found using pjdfstest:
pjdfstest/tests/utimensat/09.t

Reviewed by:    pfg
MFC after:      2 weeks
Differential Revision:  https://reviews.freebsd.org/D29933
This commit is contained in:
Fedor Uporov 2021-05-07 10:46:55 +03:00
parent b3f4665639
commit c40a160fd0
2 changed files with 43 additions and 19 deletions
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53
sys/fs/ext2fs/ext2_inode_cnv.c
View File

@ -94,8 +94,6 @@ ext2_print_inode(struct inode *in)
}
#endif /* EXT2FS_PRINT_EXTENTS */
#define XTIME_TO_NSEC(x) ((le32toh(x) & EXT3_NSEC_MASK) >> 2)
static inline bool
ext2_old_valid_dev(dev_t dev)
{
@ -132,6 +130,15 @@ ext2_new_decode_dev(uint32_t dev)
return (makedev(maj, min));
}
static void
ext2_decode_extra_time(ext_time_t *sec, int32_t *nsec, uint32_t extra)
{
if (extra & htole32(EXT3_EPOCH_MASK))
*sec += (uint64_t)(le32toh(extra) & EXT3_EPOCH_MASK) << 32;
*nsec = (le32toh(extra) & EXT3_NSEC_MASK) >> EXT3_EPOCH_BITS;
}
/*
* raw ext2 inode LE to host inode conversion
*/
@ -177,15 +184,19 @@ ext2_ei2i(struct ext2fs_dinode *ei, struct inode *ip)
ip->i_size = le32toh(ei->e2di_size);
if (S_ISREG(ip->i_mode))
ip->i_size |= (uint64_t)le32toh(ei->e2di_size_high) << 32;
ip->i_atime = le32toh(ei->e2di_atime);
ip->i_mtime = le32toh(ei->e2di_mtime);
ip->i_ctime = le32toh(ei->e2di_ctime);
ip->i_atime = (signed)le32toh(ei->e2di_atime);
ip->i_mtime = (signed)le32toh(ei->e2di_mtime);
ip->i_ctime = (signed)le32toh(ei->e2di_ctime);
if (E2DI_HAS_XTIME(ip)) {
ip->i_atimensec = XTIME_TO_NSEC(ei->e2di_atime_extra);
ip->i_mtimensec = XTIME_TO_NSEC(ei->e2di_mtime_extra);
ip->i_ctimensec = XTIME_TO_NSEC(ei->e2di_ctime_extra);
ip->i_birthtime = le32toh(ei->e2di_crtime);
ip->i_birthnsec = XTIME_TO_NSEC(ei->e2di_crtime_extra);
ext2_decode_extra_time(&ip->i_atime, &ip->i_atimensec,
ei->e2di_atime_extra);
ext2_decode_extra_time(&ip->i_mtime, &ip->i_mtimensec,
ei->e2di_mtime_extra);
ext2_decode_extra_time(&ip->i_ctime, &ip->i_ctimensec,
ei->e2di_ctime_extra);
ip->i_birthtime = (signed)le32toh(ei->e2di_crtime);
ext2_decode_extra_time(&ip->i_birthtime, &ip->i_birthnsec,
ei->e2di_crtime_extra);
}
ip->i_flags = 0;
ei_flags_host = le32toh(ei->e2di_flags);
@ -226,7 +237,15 @@ ext2_ei2i(struct ext2fs_dinode *ei, struct inode *ip)
return (ext2_ei_csum_verify(ip, ei));
}
#define NSEC_TO_XTIME(t) (htole32((t << 2) & EXT3_NSEC_MASK))
static uint32_t
ext2_encode_extra_time(int64_t sec, int32_t nsec)
{
uint32_t extra;
extra = ((sec - (int32_t)sec) >> 32) & EXT3_EPOCH_MASK;
return (htole32(extra | (nsec << EXT3_EPOCH_BITS)));
}
/*
* inode to raw ext2 LE inode conversion
@ -253,11 +272,15 @@ ext2_i2ei(struct inode *ip, struct ext2fs_dinode *ei)
ei->e2di_dtime = htole32(le16toh(ei->e2di_nlink) ? 0 :
le32toh(ei->e2di_mtime));
if (E2DI_HAS_XTIME(ip)) {
ei->e2di_ctime_extra = NSEC_TO_XTIME(ip->i_ctimensec);
ei->e2di_mtime_extra = NSEC_TO_XTIME(ip->i_mtimensec);
ei->e2di_atime_extra = NSEC_TO_XTIME(ip->i_atimensec);
ei->e2di_ctime_extra = ext2_encode_extra_time(ip->i_ctime,
ip->i_ctimensec);
ei->e2di_mtime_extra = ext2_encode_extra_time(ip->i_mtime,
ip->i_mtimensec);
ei->e2di_atime_extra = ext2_encode_extra_time(ip->i_atime,
ip->i_atimensec);
ei->e2di_crtime = htole32(ip->i_birthtime);
ei->e2di_crtime_extra = NSEC_TO_XTIME(ip->i_birthnsec);
ei->e2di_crtime_extra = ext2_encode_extra_time(ip->i_birthtime,
ip->i_birthnsec);
}
/* Keep these in host endian for a while since they change a lot */
ei->e2di_flags = 0;

9
sys/fs/ext2fs/inode.h
View File

@ -62,6 +62,7 @@
typedef uint32_t e2fs_daddr_t;
typedef int64_t e2fs_lbn_t;
typedef int64_t e4fs_daddr_t;
typedef int64_t ext_time_t;
/*
* The inode is used to describe each active (or recently active) file in the
@ -99,10 +100,10 @@ struct inode {
uint32_t i_gid; /* File group. */
uint64_t i_size; /* File byte count. */
uint64_t i_blocks; /* Blocks actually held. */
int32_t i_atime; /* Last access time. */
int32_t i_mtime; /* Last modified time. */
int32_t i_ctime; /* Last inode change time. */
int32_t i_birthtime; /* Inode creation time. */
ext_time_t i_atime; /* Last access time. */
ext_time_t i_mtime; /* Last modified time. */
ext_time_t i_ctime; /* Last inode change time. */
ext_time_t i_birthtime; /* Inode creation time. */
int32_t i_mtimensec; /* Last modified time. */
int32_t i_atimensec; /* Last access time. */
int32_t i_ctimensec; /* Last inode change time. */