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authorArnd Bergmann <arnd@arndb.de>2018-06-14 14:51:13 +0200
committerArnd Bergmann <arnd@arndb.de>2018-06-14 14:54:00 +0200
commit15eefe2a99b2b208f512047e7bc404c3efcf0a44 (patch)
treef5d977cb790bd9cedbfed851d3d5d16b442a41e0 /fs/ext4
parent93b7f7ad2018d2037559b1d0892417864c78b371 (diff)
parent95582b00838837fc07e042979320caf917ce3fe6 (diff)
downloadlinux-15eefe2a99b2b208f512047e7bc404c3efcf0a44.tar.bz2
Merge branch 'vfs_timespec64' of https://github.com/deepa-hub/vfs into vfs-timespec64
Pull the timespec64 conversion from Deepa Dinamani: "The series aims to switch vfs timestamps to use struct timespec64. Currently vfs uses struct timespec, which is not y2038 safe. The flag patch applies cleanly. I've not seen the timestamps update logic change often. The series applies cleanly on 4.17-rc6 and linux-next tip (top commit: next-20180517). I'm not sure how to merge this kind of a series with a flag patch. We are targeting 4.18 for this. Let me know if you have other suggestions. The series involves the following: 1. Add vfs helper functions for supporting struct timepec64 timestamps. 2. Cast prints of vfs timestamps to avoid warnings after the switch. 3. Simplify code using vfs timestamps so that the actual replacement becomes easy. 4. Convert vfs timestamps to use struct timespec64 using a script. This is a flag day patch. I've tried to keep the conversions with the script simple, to aid in the reviews. I've kept all the internal filesystem data structures and function signatures the same. Next steps: 1. Convert APIs that can handle timespec64, instead of converting timestamps at the boundaries. 2. Update internal data structures to avoid timestamp conversions." I've pulled it into a branch based on top of the NFS changes that are now in mainline, so I could resolve the non-obvious conflict between the two while merging. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/ext4.h34
-rw-r--r--fs/ext4/ialloc.c4
-rw-r--r--fs/ext4/namei.c2
3 files changed, 23 insertions, 17 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index a42e71203e53..f76d0777f7ad 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -817,12 +817,14 @@ static inline void ext4_decode_extra_time(struct timespec *time, __le32 extra)
time->tv_nsec = (le32_to_cpu(extra) & EXT4_NSEC_MASK) >> EXT4_EPOCH_BITS;
}
-#define EXT4_INODE_SET_XTIME(xtime, inode, raw_inode) \
-do { \
- (raw_inode)->xtime = cpu_to_le32((inode)->xtime.tv_sec); \
- if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra)) \
- (raw_inode)->xtime ## _extra = \
- ext4_encode_extra_time(&(inode)->xtime); \
+#define EXT4_INODE_SET_XTIME(xtime, inode, raw_inode) \
+do { \
+ (raw_inode)->xtime = cpu_to_le32((inode)->xtime.tv_sec); \
+ if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra)) {\
+ struct timespec ts = timespec64_to_timespec((inode)->xtime); \
+ (raw_inode)->xtime ## _extra = \
+ ext4_encode_extra_time(&ts); \
+ } \
} while (0)
#define EXT4_EINODE_SET_XTIME(xtime, einode, raw_inode) \
@@ -834,16 +836,20 @@ do { \
ext4_encode_extra_time(&(einode)->xtime); \
} while (0)
-#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; \
+#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)) { \
+ struct timespec ts = timespec64_to_timespec((inode)->xtime); \
+ ext4_decode_extra_time(&ts, \
+ raw_inode->xtime ## _extra); \
+ (inode)->xtime = timespec_to_timespec64(ts); \
+ } \
+ else \
+ (inode)->xtime.tv_nsec = 0; \
} while (0)
+
#define EXT4_EINODE_GET_XTIME(xtime, einode, raw_inode) \
do { \
if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime)) \
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index df92e3ec9913..751e1be2c652 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -1078,8 +1078,8 @@ got:
inode->i_ino = ino + group * EXT4_INODES_PER_GROUP(sb);
/* This is the optimal IO size (for stat), not the fs block size */
inode->i_blocks = 0;
- inode->i_mtime = inode->i_atime = inode->i_ctime = ei->i_crtime =
- current_time(inode);
+ inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
+ ei->i_crtime = timespec64_to_timespec(inode->i_mtime);
memset(ei->i_data, 0, sizeof(ei->i_data));
ei->i_dir_start_lookup = 0;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 4a09063ce1d2..2a4c25c4681d 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -3673,7 +3673,7 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
};
u8 new_file_type;
int retval;
- struct timespec ctime;
+ struct timespec64 ctime;
if ((ext4_test_inode_flag(new_dir, EXT4_INODE_PROJINHERIT) &&
!projid_eq(EXT4_I(new_dir)->i_projid,