diff options
Diffstat (limited to 'fs/hfsplus')
| -rw-r--r-- | fs/hfsplus/hfsplus_fs.h | 28 | ||||
| -rw-r--r-- | fs/hfsplus/inode.c | 12 |
2 files changed, 29 insertions, 11 deletions
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h index b8471bf05def..3b03fff68543 100644 --- a/fs/hfsplus/hfsplus_fs.h +++ b/fs/hfsplus/hfsplus_fs.h @@ -533,13 +533,31 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf, void **data, int op, int op_flags); int hfsplus_read_wrapper(struct super_block *sb); -/* time macros */ -#define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U) -#define __hfsp_ut2mt(t) (cpu_to_be32(t + 2082844800U)) +/* + * time helpers: convert between 1904-base and 1970-base timestamps + * + * HFS+ implementations are highly inconsistent, this one matches the + * traditional behavior of 64-bit Linux, giving the most useful + * time range between 1970 and 2106, by treating any on-disk timestamp + * under HFSPLUS_UTC_OFFSET (Jan 1 1970) as a time between 2040 and 2106. + */ +#define HFSPLUS_UTC_OFFSET 2082844800U + +static inline time64_t __hfsp_mt2ut(__be32 mt) +{ + time64_t ut = (u32)(be32_to_cpu(mt) - HFSPLUS_UTC_OFFSET); + + return ut; +} + +static inline __be32 __hfsp_ut2mt(time64_t ut) +{ + return cpu_to_be32(lower_32_bits(ut) + HFSPLUS_UTC_OFFSET); +} /* compatibility */ -#define hfsp_mt2ut(t) (struct timespec){ .tv_sec = __hfsp_mt2ut(t) } +#define hfsp_mt2ut(t) (struct timespec64){ .tv_sec = __hfsp_mt2ut(t) } #define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec) -#define hfsp_now2mt() __hfsp_ut2mt(get_seconds()) +#define hfsp_now2mt() __hfsp_ut2mt(ktime_get_real_seconds()) #endif diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c index d131c8ea7eb6..94bd83b36644 100644 --- a/fs/hfsplus/inode.c +++ b/fs/hfsplus/inode.c @@ -504,9 +504,9 @@ int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd) hfsplus_get_perms(inode, &folder->permissions, 1); set_nlink(inode, 1); inode->i_size = 2 + be32_to_cpu(folder->valence); - inode->i_atime = timespec_to_timespec64(hfsp_mt2ut(folder->access_date)); - inode->i_mtime = timespec_to_timespec64(hfsp_mt2ut(folder->content_mod_date)); - inode->i_ctime = timespec_to_timespec64(hfsp_mt2ut(folder->attribute_mod_date)); + inode->i_atime = hfsp_mt2ut(folder->access_date); + inode->i_mtime = hfsp_mt2ut(folder->content_mod_date); + inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date); HFSPLUS_I(inode)->create_date = folder->create_date; HFSPLUS_I(inode)->fs_blocks = 0; if (folder->flags & cpu_to_be16(HFSPLUS_HAS_FOLDER_COUNT)) { @@ -542,9 +542,9 @@ int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd) init_special_inode(inode, inode->i_mode, be32_to_cpu(file->permissions.dev)); } - inode->i_atime = timespec_to_timespec64(hfsp_mt2ut(file->access_date)); - inode->i_mtime = timespec_to_timespec64(hfsp_mt2ut(file->content_mod_date)); - inode->i_ctime = timespec_to_timespec64(hfsp_mt2ut(file->attribute_mod_date)); + inode->i_atime = hfsp_mt2ut(file->access_date); + inode->i_mtime = hfsp_mt2ut(file->content_mod_date); + inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date); HFSPLUS_I(inode)->create_date = file->create_date; } else { pr_err("bad catalog entry used to create inode\n"); |