From 078cd8279e659989b103359bb22373cc79445bde Mon Sep 17 00:00:00 2001 From: Deepa Dinamani Date: Wed, 14 Sep 2016 07:48:04 -0700 Subject: fs: Replace CURRENT_TIME with current_time() for inode timestamps CURRENT_TIME macro is not appropriate for filesystems as it doesn't use the right granularity for filesystem timestamps. Use current_time() instead. CURRENT_TIME is also not y2038 safe. This is also in preparation for the patch that transitions vfs timestamps to use 64 bit time and hence make them y2038 safe. As part of the effort current_time() will be extended to do range checks. Hence, it is necessary for all file system timestamps to use current_time(). Also, current_time() will be transitioned along with vfs to be y2038 safe. Note that whenever a single call to current_time() is used to change timestamps in different inodes, it is because they share the same time granularity. Signed-off-by: Deepa Dinamani Reviewed-by: Arnd Bergmann Acked-by: Felipe Balbi Acked-by: Steven Whitehouse Acked-by: Ryusuke Konishi Acked-by: David Sterba Signed-off-by: Al Viro --- fs/nilfs2/dir.c | 6 +++--- fs/nilfs2/inode.c | 4 ++-- fs/nilfs2/ioctl.c | 2 +- fs/nilfs2/namei.c | 6 +++--- 4 files changed, 9 insertions(+), 9 deletions(-) (limited to 'fs/nilfs2') diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c index 908ebbf..582831a 100644 --- a/fs/nilfs2/dir.c +++ b/fs/nilfs2/dir.c @@ -438,7 +438,7 @@ void nilfs_set_link(struct inode *dir, struct nilfs_dir_entry *de, nilfs_set_de_type(de, inode); nilfs_commit_chunk(page, mapping, from, to); nilfs_put_page(page); - dir->i_mtime = dir->i_ctime = CURRENT_TIME; + dir->i_mtime = dir->i_ctime = current_time(dir); } /* @@ -528,7 +528,7 @@ got_it: de->inode = cpu_to_le64(inode->i_ino); nilfs_set_de_type(de, inode); nilfs_commit_chunk(page, page->mapping, from, to); - dir->i_mtime = dir->i_ctime = CURRENT_TIME; + dir->i_mtime = dir->i_ctime = current_time(dir); nilfs_mark_inode_dirty(dir); /* OFFSET_CACHE */ out_put: @@ -576,7 +576,7 @@ int nilfs_delete_entry(struct nilfs_dir_entry *dir, struct page *page) pde->rec_len = nilfs_rec_len_to_disk(to - from); dir->inode = 0; nilfs_commit_chunk(page, mapping, from, to); - inode->i_ctime = inode->i_mtime = CURRENT_TIME; + inode->i_ctime = inode->i_mtime = current_time(inode); out: nilfs_put_page(page); return err; diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index af04f55..bf08403 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -367,7 +367,7 @@ struct inode *nilfs_new_inode(struct inode *dir, umode_t mode) atomic64_inc(&root->inodes_count); inode_init_owner(inode, dir, mode); inode->i_ino = ino; - inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; + inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) { err = nilfs_bmap_read(ii->i_bmap, NULL); @@ -749,7 +749,7 @@ void nilfs_truncate(struct inode *inode) nilfs_truncate_bmap(ii, blkoff); - inode->i_mtime = inode->i_ctime = CURRENT_TIME; + inode->i_mtime = inode->i_ctime = current_time(inode); if (IS_SYNC(inode)) nilfs_set_transaction_flag(NILFS_TI_SYNC); diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index f1d7989..1d2c3d7 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -174,7 +174,7 @@ static int nilfs_ioctl_setflags(struct inode *inode, struct file *filp, (flags & FS_FL_USER_MODIFIABLE); nilfs_set_inode_flags(inode); - inode->i_ctime = CURRENT_TIME; + inode->i_ctime = current_time(inode); if (IS_SYNC(inode)) nilfs_set_transaction_flag(NILFS_TI_SYNC); diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c index dbcf1dc..ace5ebf 100644 --- a/fs/nilfs2/namei.c +++ b/fs/nilfs2/namei.c @@ -194,7 +194,7 @@ static int nilfs_link(struct dentry *old_dentry, struct inode *dir, if (err) return err; - inode->i_ctime = CURRENT_TIME; + inode->i_ctime = current_time(inode); inode_inc_link_count(inode); ihold(inode); @@ -391,7 +391,7 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry, goto out_dir; nilfs_set_link(new_dir, new_de, new_page, old_inode); nilfs_mark_inode_dirty(new_dir); - new_inode->i_ctime = CURRENT_TIME; + new_inode->i_ctime = current_time(new_inode); if (dir_de) drop_nlink(new_inode); drop_nlink(new_inode); @@ -410,7 +410,7 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry, * Like most other Unix systems, set the ctime for inodes on a * rename. */ - old_inode->i_ctime = CURRENT_TIME; + old_inode->i_ctime = current_time(old_inode); nilfs_delete_entry(old_de, old_page); -- cgit v1.1