Hi Jaegeuk, On 2018/3/30 13:51, Jaegeuk Kim wrote: > This fixes xfstests/generic/392.
Hmm... Could you please give more details about this issue and solution in commit message, since I can catch up the solution only with the code. Thanks, > > Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org> > --- > fs/f2fs/f2fs.h | 15 +++++++++++++++ > fs/f2fs/inode.c | 4 ++++ > 2 files changed, 19 insertions(+) > > diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h > index 000f93f6767e..675c39d85111 100644 > --- a/fs/f2fs/f2fs.h > +++ b/fs/f2fs/f2fs.h > @@ -664,6 +664,7 @@ struct f2fs_inode_info { > kprojid_t i_projid; /* id for project quota */ > int i_inline_xattr_size; /* inline xattr size */ > struct timespec i_crtime; /* inode creation time */ > + struct timespec i_disk_time[4]; /* inode disk times */ > }; > > static inline void get_extent_info(struct extent_info *ext, > @@ -2457,6 +2458,11 @@ static inline void clear_file(struct inode *inode, int > type) > f2fs_mark_inode_dirty_sync(inode, true); > } > > +static inline bool time_equal(struct timespec a, struct timespec b) > +{ > + return (a.tv_sec == b.tv_sec) && (a.tv_nsec == b.tv_nsec); > +} > + > static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) > { > bool ret; > @@ -2474,6 +2480,15 @@ static inline bool f2fs_skip_inode_update(struct inode > *inode, int dsync) > i_size_read(inode) & ~PAGE_MASK) > return false; > > + if (!time_equal(F2FS_I(inode)->i_disk_time[0], inode->i_atime)) > + return false; > + if (!time_equal(F2FS_I(inode)->i_disk_time[1], inode->i_ctime)) > + return false; > + if (!time_equal(F2FS_I(inode)->i_disk_time[2], inode->i_mtime)) > + return false; > + if (!time_equal(F2FS_I(inode)->i_disk_time[3], F2FS_I(inode)->i_crtime)) > + return false; > + > down_read(&F2FS_I(inode)->i_sem); > ret = F2FS_I(inode)->last_disk_size == i_size_read(inode); > up_read(&F2FS_I(inode)->i_sem); > diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c > index 401f09ccce7e..70aba580f4b0 100644 > --- a/fs/f2fs/inode.c > +++ b/fs/f2fs/inode.c > @@ -444,6 +444,10 @@ void update_inode(struct inode *inode, struct page > *node_page) > if (inode->i_nlink == 0) > clear_inline_node(node_page); > > + F2FS_I(inode)->i_disk_time[0] = inode->i_atime; > + F2FS_I(inode)->i_disk_time[1] = inode->i_ctime; > + F2FS_I(inode)->i_disk_time[2] = inode->i_mtime; > + F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; > } > > void update_inode_page(struct inode *inode) >