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Diffstat (limited to 'fs/ext4/ext4.h')
-rw-r--r--fs/ext4/ext4.h90
1 files changed, 48 insertions, 42 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 0a2d55faa095..1e2259d9967d 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -868,64 +868,70 @@ struct ext4_inode {
* affected filesystem before 2242.
*/
-static inline __le32 ext4_encode_extra_time(struct timespec64 *time)
+static inline __le32 ext4_encode_extra_time(struct timespec64 ts)
{
- u32 extra =((time->tv_sec - (s32)time->tv_sec) >> 32) & EXT4_EPOCH_MASK;
- return cpu_to_le32(extra | (time->tv_nsec << EXT4_EPOCH_BITS));
+ u32 extra = ((ts.tv_sec - (s32)ts.tv_sec) >> 32) & EXT4_EPOCH_MASK;
+ return cpu_to_le32(extra | (ts.tv_nsec << EXT4_EPOCH_BITS));
}
-static inline void ext4_decode_extra_time(struct timespec64 *time,
- __le32 extra)
+static inline struct timespec64 ext4_decode_extra_time(__le32 base,
+ __le32 extra)
{
+ struct timespec64 ts = { .tv_sec = (signed)le32_to_cpu(base) };
+
if (unlikely(extra & cpu_to_le32(EXT4_EPOCH_MASK)))
- time->tv_sec += (u64)(le32_to_cpu(extra) & EXT4_EPOCH_MASK) << 32;
- time->tv_nsec = (le32_to_cpu(extra) & EXT4_NSEC_MASK) >> EXT4_EPOCH_BITS;
+ ts.tv_sec += (u64)(le32_to_cpu(extra) & EXT4_EPOCH_MASK) << 32;
+ ts.tv_nsec = (le32_to_cpu(extra) & EXT4_NSEC_MASK) >> EXT4_EPOCH_BITS;
+ return ts;
}
-#define EXT4_INODE_SET_XTIME(xtime, inode, raw_inode) \
+#define EXT4_INODE_SET_XTIME_VAL(xtime, inode, raw_inode, ts) \
do { \
- if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra)) {\
- (raw_inode)->xtime = cpu_to_le32((inode)->xtime.tv_sec); \
- (raw_inode)->xtime ## _extra = \
- ext4_encode_extra_time(&(inode)->xtime); \
- } \
- else \
- (raw_inode)->xtime = cpu_to_le32(clamp_t(int32_t, (inode)->xtime.tv_sec, S32_MIN, S32_MAX)); \
+ if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra)) { \
+ (raw_inode)->xtime = cpu_to_le32((ts).tv_sec); \
+ (raw_inode)->xtime ## _extra = ext4_encode_extra_time(ts); \
+ } else \
+ (raw_inode)->xtime = cpu_to_le32(clamp_t(int32_t, (ts).tv_sec, S32_MIN, S32_MAX)); \
} while (0)
-#define EXT4_EINODE_SET_XTIME(xtime, einode, raw_inode) \
-do { \
- if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime)) \
- (raw_inode)->xtime = cpu_to_le32((einode)->xtime.tv_sec); \
- if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime ## _extra)) \
- (raw_inode)->xtime ## _extra = \
- ext4_encode_extra_time(&(einode)->xtime); \
-} while (0)
+#define EXT4_INODE_SET_XTIME(xtime, inode, raw_inode) \
+ EXT4_INODE_SET_XTIME_VAL(xtime, inode, raw_inode, (inode)->xtime)
+
+#define EXT4_INODE_SET_CTIME(inode, raw_inode) \
+ EXT4_INODE_SET_XTIME_VAL(i_ctime, inode, raw_inode, inode_get_ctime(inode))
+
+#define EXT4_EINODE_SET_XTIME(xtime, einode, raw_inode) \
+ if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime)) \
+ EXT4_INODE_SET_XTIME_VAL(xtime, &((einode)->vfs_inode), \
+ raw_inode, (einode)->xtime)
+
+#define EXT4_INODE_GET_XTIME_VAL(xtime, inode, raw_inode) \
+ (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra) ? \
+ ext4_decode_extra_time((raw_inode)->xtime, \
+ (raw_inode)->xtime ## _extra) : \
+ (struct timespec64) { \
+ .tv_sec = (signed)le32_to_cpu((raw_inode)->xtime) \
+ })
#define EXT4_INODE_GET_XTIME(xtime, inode, raw_inode) \
do { \
- (inode)->xtime.tv_sec = (signed)le32_to_cpu((raw_inode)->xtime); \
- if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra)) { \
- ext4_decode_extra_time(&(inode)->xtime, \
- raw_inode->xtime ## _extra); \
- } \
- else \
- (inode)->xtime.tv_nsec = 0; \
+ (inode)->xtime = EXT4_INODE_GET_XTIME_VAL(xtime, inode, raw_inode); \
} while (0)
+#define EXT4_INODE_GET_CTIME(inode, raw_inode) \
+do { \
+ inode_set_ctime_to_ts(inode, \
+ EXT4_INODE_GET_XTIME_VAL(i_ctime, inode, raw_inode)); \
+} while (0)
-#define EXT4_EINODE_GET_XTIME(xtime, einode, raw_inode) \
-do { \
- if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime)) \
- (einode)->xtime.tv_sec = \
- (signed)le32_to_cpu((raw_inode)->xtime); \
- else \
- (einode)->xtime.tv_sec = 0; \
- if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime ## _extra)) \
- ext4_decode_extra_time(&(einode)->xtime, \
- raw_inode->xtime ## _extra); \
- else \
- (einode)->xtime.tv_nsec = 0; \
+#define EXT4_EINODE_GET_XTIME(xtime, einode, raw_inode) \
+do { \
+ if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime)) \
+ (einode)->xtime = \
+ EXT4_INODE_GET_XTIME_VAL(xtime, &(einode->vfs_inode), \
+ raw_inode); \
+ else \
+ (einode)->xtime = (struct timespec64){0, 0}; \
} while (0)
#define i_disk_version osd1.linux1.l_i_version