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Hallyn" , Stephen Smalley , Eric Paris , Kent Overstreet , Brian Foster Date: Wed, 4 Oct 2023 14:55:29 -0400 Message-ID: <20231004185530.82088-2-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231004185530.82088-1-jlayton@kernel.org> References: <20231004185530.82088-1-jlayton@kernel.org> MIME-Version: 1.0 X-Headers-End: 1qo72V-0005FH-U3 Subject: [f2fs-dev] [PATCH v2 88/89] fs: switch timespec64 fields in inode to discrete integers X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jfs-discussion@lists.sourceforge.net, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org, gfs2@lists.linux.dev, linux-mm@kvack.org, linux-mtd@lists.infradead.org, linux-hardening@vger.kernel.org, linux-afs@lists.infradead.org, linux-s390@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-rdma@vger.kernel.org, linux-unionfs@vger.kernel.org, codalist@coda.cs.cmu.edu, linux-bcachefs@vger.kernel.org, linux-serial@vger.kernel.org, linux-ext4@vger.kernel.org, devel@lists.orangefs.org, linux-trace-kernel@vger.kernel.org, linux-cifs@vger.kernel.org, selinux@vger.kernel.org, apparmor@lists.ubuntu.com, autofs@vger.kernel.org, linux-um@lists.infradead.org, reiserfs-devel@vger.kernel.org, ocfs2-devel@lists.linux.dev, ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, linuxppc-dev@lists.ozlabs.org, v9fs@lists.linux.dev, linux-usb@vger.kernel.org, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-security-module@vger.kernel.org, netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, bpf@vger.kernel.org, ntfs3@lists.linux.dev, linux-erofs@lists.ozlabs.org, linux-karma-devel@lists.sourceforge.net, linux-btrfs@vger.kernel.org Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net This shaves 8 bytes off struct inode with a garden-variety Fedora Kconfig. Signed-off-by: Jeff Layton --- include/linux/fs.h | 53 ++++++++++++++++++++++++++-------------------- 1 file changed, 30 insertions(+), 23 deletions(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index 84fdaf399fbe..485b5e21c8e5 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -671,9 +671,12 @@ struct inode { }; dev_t i_rdev; loff_t i_size; - struct timespec64 __i_atime; - struct timespec64 __i_mtime; - struct timespec64 __i_ctime; /* use inode_*_ctime accessors! */ + time64_t i_atime_sec; + time64_t i_mtime_sec; + time64_t i_ctime_sec; + u32 i_atime_nsec; + u32 i_mtime_nsec; + u32 i_ctime_nsec; spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */ unsigned short i_bytes; u8 i_blkbits; @@ -1517,23 +1520,27 @@ struct timespec64 inode_set_ctime_current(struct inode *inode); static inline time64_t inode_get_atime_sec(const struct inode *inode) { - return inode->__i_atime.tv_sec; + return inode->i_atime_sec; } static inline long inode_get_atime_nsec(const struct inode *inode) { - return inode->__i_atime.tv_nsec; + return inode->i_atime_nsec; } static inline struct timespec64 inode_get_atime(const struct inode *inode) { - return inode->__i_atime; + struct timespec64 ts = { .tv_sec = inode_get_atime_sec(inode), + .tv_nsec = inode_get_atime_nsec(inode) }; + + return ts; } static inline struct timespec64 inode_set_atime_to_ts(struct inode *inode, struct timespec64 ts) { - inode->__i_atime = ts; + inode->i_atime_sec = ts.tv_sec; + inode->i_atime_nsec = ts.tv_nsec; return ts; } @@ -1542,28 +1549,32 @@ static inline struct timespec64 inode_set_atime(struct inode *inode, { struct timespec64 ts = { .tv_sec = sec, .tv_nsec = nsec }; + return inode_set_atime_to_ts(inode, ts); } static inline time64_t inode_get_mtime_sec(const struct inode *inode) { - return inode->__i_mtime.tv_sec; + return inode->i_mtime_sec; } static inline long inode_get_mtime_nsec(const struct inode *inode) { - return inode->__i_mtime.tv_nsec; + return inode->i_mtime_nsec; } static inline struct timespec64 inode_get_mtime(const struct inode *inode) { - return inode->__i_mtime; + struct timespec64 ts = { .tv_sec = inode_get_mtime_sec(inode), + .tv_nsec = inode_get_mtime_nsec(inode) }; + return ts; } static inline struct timespec64 inode_set_mtime_to_ts(struct inode *inode, struct timespec64 ts) { - inode->__i_mtime = ts; + inode->i_mtime_sec = ts.tv_sec; + inode->i_mtime_nsec = ts.tv_nsec; return ts; } @@ -1577,34 +1588,30 @@ static inline struct timespec64 inode_set_mtime(struct inode *inode, static inline time64_t inode_get_ctime_sec(const struct inode *inode) { - return inode->__i_ctime.tv_sec; + return inode->i_ctime_sec; } static inline long inode_get_ctime_nsec(const struct inode *inode) { - return inode->__i_ctime.tv_nsec; + return inode->i_ctime_nsec; } static inline struct timespec64 inode_get_ctime(const struct inode *inode) { - return inode->__i_ctime; + struct timespec64 ts = { .tv_sec = inode_get_ctime_sec(inode), + .tv_nsec = inode_get_ctime_nsec(inode) }; + + return ts; } static inline struct timespec64 inode_set_ctime_to_ts(struct inode *inode, struct timespec64 ts) { - inode->__i_ctime = ts; + inode->i_ctime_sec = ts.tv_sec; + inode->i_ctime_nsec = ts.tv_nsec; return ts; } -/** - * inode_set_ctime - set the ctime in the inode - * @inode: inode in which to set the ctime - * @sec: tv_sec value to set - * @nsec: tv_nsec value to set - * - * Set the ctime in @inode to { @sec, @nsec } - */ static inline struct timespec64 inode_set_ctime(struct inode *inode, time64_t sec, long nsec) {