CURRENT_TIME_SEC is not y2038 safe. current_time() will be transitioned to use 64 bit time along with vfs in a separate patch. There is no plan to transition CURRENT_TIME_SEC to use y2038 safe time interfaces.
current_time() returns timestamps according to the granularities set in the inode's super_block. The granularity check to call current_fs_time() or CURRENT_TIME_SEC is not required.
Use current_time() directly to update inode timestamp. Use timespec_trunc during file system creation, before the first inode is created.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Reviewed-by: Arnd Bergmann arnd@arndb.de Cc: Artem Bityutskiy dedekind1@gmail.com Cc: Adrian Hunter adrian.hunter@intel.com Cc: linux-mtd@lists.infradead.org --- fs/ubifs/dir.c | 10 +++++----- fs/ubifs/file.c | 12 ++++++------ fs/ubifs/ioctl.c | 2 +- fs/ubifs/misc.h | 10 ---------- fs/ubifs/sb.c | 14 ++++++++++---- fs/ubifs/xattr.c | 6 +++--- 6 files changed, 25 insertions(+), 29 deletions(-)
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c index 4b86d3a..6e2dff9 100644 --- a/fs/ubifs/dir.c +++ b/fs/ubifs/dir.c @@ -106,7 +106,7 @@ struct inode *ubifs_new_inode(struct ubifs_info *c, const struct inode *dir,
inode_init_owner(inode, dir, mode); inode->i_mtime = inode->i_atime = inode->i_ctime = - ubifs_current_time(inode); + current_time(inode); inode->i_mapping->nrpages = 0;
switch (mode & S_IFMT) { @@ -529,7 +529,7 @@ static int ubifs_link(struct dentry *old_dentry, struct inode *dir, lock_2_inodes(dir, inode); inc_nlink(inode); ihold(inode); - inode->i_ctime = ubifs_current_time(inode); + inode->i_ctime = current_time(inode); dir->i_size += sz_change; dir_ui->ui_size = dir->i_size; dir->i_mtime = dir->i_ctime = inode->i_ctime; @@ -586,7 +586,7 @@ static int ubifs_unlink(struct inode *dir, struct dentry *dentry) }
lock_2_inodes(dir, inode); - inode->i_ctime = ubifs_current_time(dir); + inode->i_ctime = current_time(dir); drop_nlink(inode); dir->i_size -= sz_change; dir_ui->ui_size = dir->i_size; @@ -675,7 +675,7 @@ static int ubifs_rmdir(struct inode *dir, struct dentry *dentry) }
lock_2_inodes(dir, inode); - inode->i_ctime = ubifs_current_time(dir); + inode->i_ctime = current_time(dir); clear_nlink(inode); drop_nlink(dir); dir->i_size -= sz_change; @@ -1023,7 +1023,7 @@ static int ubifs_rename(struct inode *old_dir, struct dentry *old_dentry, * Like most other Unix systems, set the @i_ctime for inodes on a * rename. */ - time = ubifs_current_time(old_dir); + time = current_time(old_dir); old_inode->i_ctime = time;
/* We must adjust parent link count when renaming directories */ diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index 7bbf420..45e3d71 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -1182,7 +1182,7 @@ static int do_truncation(struct ubifs_info *c, struct inode *inode, mutex_lock(&ui->ui_mutex); ui->ui_size = inode->i_size; /* Truncation changes inode [mc]time */ - inode->i_mtime = inode->i_ctime = ubifs_current_time(inode); + inode->i_mtime = inode->i_ctime = current_time(inode); /* Other attributes may be changed at the same time as well */ do_attr_changes(inode, attr); err = ubifs_jnl_truncate(c, inode, old_size, new_size); @@ -1229,7 +1229,7 @@ static int do_setattr(struct ubifs_info *c, struct inode *inode, mutex_lock(&ui->ui_mutex); if (attr->ia_valid & ATTR_SIZE) { /* Truncation changes inode [mc]time */ - inode->i_mtime = inode->i_ctime = ubifs_current_time(inode); + inode->i_mtime = inode->i_ctime = current_time(inode); /* 'truncate_setsize()' changed @i_size, update @ui_size */ ui->ui_size = inode->i_size; } @@ -1406,7 +1406,7 @@ int ubifs_update_time(struct inode *inode, struct timespec *time, */ static int update_mctime(struct inode *inode) { - struct timespec now = ubifs_current_time(inode); + struct timespec now = current_time(inode); struct ubifs_inode *ui = ubifs_inode(inode); struct ubifs_info *c = inode->i_sb->s_fs_info;
@@ -1420,7 +1420,7 @@ static int update_mctime(struct inode *inode) return err;
mutex_lock(&ui->ui_mutex); - inode->i_mtime = inode->i_ctime = ubifs_current_time(inode); + inode->i_mtime = inode->i_ctime = current_time(inode); release = ui->dirty; mark_inode_dirty_sync(inode); mutex_unlock(&ui->ui_mutex); @@ -1498,7 +1498,7 @@ static int ubifs_vm_page_mkwrite(struct vm_area_struct *vma, struct page *page = vmf->page; struct inode *inode = file_inode(vma->vm_file); struct ubifs_info *c = inode->i_sb->s_fs_info; - struct timespec now = ubifs_current_time(inode); + struct timespec now = current_time(inode); struct ubifs_budget_req req = { .new_page = 1 }; int err, update_time;
@@ -1566,7 +1566,7 @@ static int ubifs_vm_page_mkwrite(struct vm_area_struct *vma, struct ubifs_inode *ui = ubifs_inode(inode);
mutex_lock(&ui->ui_mutex); - inode->i_mtime = inode->i_ctime = ubifs_current_time(inode); + inode->i_mtime = inode->i_ctime = current_time(inode); release = ui->dirty; mark_inode_dirty_sync(inode); mutex_unlock(&ui->ui_mutex); diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c index 3c7b29d..a81603d 100644 --- a/fs/ubifs/ioctl.c +++ b/fs/ubifs/ioctl.c @@ -126,7 +126,7 @@ static int setflags(struct inode *inode, int flags)
ui->flags = ioctl2ubifs(flags); ubifs_set_inode_flags(inode); - inode->i_ctime = ubifs_current_time(inode); + inode->i_ctime = current_time(inode); release = ui->dirty; mark_inode_dirty_sync(inode); mutex_unlock(&ui->ui_mutex); diff --git a/fs/ubifs/misc.h b/fs/ubifs/misc.h index 8ece6ca..caf83d6 100644 --- a/fs/ubifs/misc.h +++ b/fs/ubifs/misc.h @@ -225,16 +225,6 @@ static inline void *ubifs_idx_key(const struct ubifs_info *c, }
/** - * ubifs_current_time - round current time to time granularity. - * @inode: inode - */ -static inline struct timespec ubifs_current_time(struct inode *inode) -{ - return (inode->i_sb->s_time_gran < NSEC_PER_SEC) ? - current_fs_time(inode->i_sb) : CURRENT_TIME_SEC; -} - -/** * ubifs_tnc_lookup - look up a file-system node. * @c: UBIFS file-system description object * @key: node key to lookup diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c index 3cbb904..907bfff 100644 --- a/fs/ubifs/sb.c +++ b/fs/ubifs/sb.c @@ -84,6 +84,8 @@ static int create_default_filesystem(struct ubifs_info *c) int min_leb_cnt = UBIFS_MIN_LEB_CNT; long long tmp64, main_bytes; __le64 tmp_le64; + __le32 tmp_le32; + struct timespec ts;
/* Some functions called from here depend on the @c->key_len filed */ c->key_len = UBIFS_SK_LEN; @@ -297,13 +299,17 @@ static int create_default_filesystem(struct ubifs_info *c) ino->ch.node_type = UBIFS_INO_NODE; ino->creat_sqnum = cpu_to_le64(++c->max_sqnum); ino->nlink = cpu_to_le32(2); - tmp_le64 = cpu_to_le64(CURRENT_TIME_SEC.tv_sec); + + ktime_get_real_ts(&ts); + ts = timespec_trunc(ts, DEFAULT_TIME_GRAN); + tmp_le64 = cpu_to_le64(ts.tv_sec); ino->atime_sec = tmp_le64; ino->ctime_sec = tmp_le64; ino->mtime_sec = tmp_le64; - ino->atime_nsec = 0; - ino->ctime_nsec = 0; - ino->mtime_nsec = 0; + tmp_le32 = cpu_to_le32(ts.tv_nsec); + ino->atime_nsec = tmp_le32; + ino->ctime_nsec = tmp_le32; + ino->mtime_nsec = tmp_le32; ino->mode = cpu_to_le32(S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO); ino->size = cpu_to_le64(UBIFS_INO_NODE_SZ);
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c index e237811..60b407b 100644 --- a/fs/ubifs/xattr.c +++ b/fs/ubifs/xattr.c @@ -152,7 +152,7 @@ static int create_xattr(struct ubifs_info *c, struct inode *host, ui->data_len = size;
mutex_lock(&host_ui->ui_mutex); - host->i_ctime = ubifs_current_time(host); + host->i_ctime = current_time(host); host_ui->xattr_cnt += 1; host_ui->xattr_size += CALC_DENT_SIZE(nm->len); host_ui->xattr_size += CALC_XATTR_BYTES(size); @@ -221,7 +221,7 @@ static int change_xattr(struct ubifs_info *c, struct inode *host, mutex_unlock(&ui->ui_mutex);
mutex_lock(&host_ui->ui_mutex); - host->i_ctime = ubifs_current_time(host); + host->i_ctime = current_time(host); host_ui->xattr_size -= CALC_XATTR_BYTES(ui->data_len); host_ui->xattr_size += CALC_XATTR_BYTES(size);
@@ -458,7 +458,7 @@ static int remove_xattr(struct ubifs_info *c, struct inode *host, return err;
mutex_lock(&host_ui->ui_mutex); - host->i_ctime = ubifs_current_time(host); + host->i_ctime = current_time(host); host_ui->xattr_cnt -= 1; host_ui->xattr_size -= CALC_DENT_SIZE(nm->len); host_ui->xattr_size -= CALC_XATTR_BYTES(ui->data_len);