The patch titled task_struct: make journal_info conditional has been added to the -mm tree. Its filename is task_struct-make-journal_info-conditional.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: task_struct: make journal_info conditional From: Hiroshi Shimamoto <h-shimamoto@xxxxxxxxxxxxx> journal_info in task_struct is used in journaling file system only. So introduce CONFIG_FS_JOURNAL_INFO and make it conditional. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@xxxxxxxxxxxxx> Cc: Chris Mason <chris.mason@xxxxxxxxxx> Cc: "Theodore Ts'o" <tytso@xxxxxxx> Cc: Steven Whitehouse <swhiteho@xxxxxxxxxx> Cc: KONISHI Ryusuke <konishi.ryusuke@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/Kconfig | 4 ++++ fs/btrfs/Kconfig | 1 + fs/ext4/Kconfig | 1 + fs/gfs2/Kconfig | 1 + fs/jbd/Kconfig | 1 + fs/jbd2/Kconfig | 1 + fs/nilfs2/Kconfig | 1 + fs/reiserfs/Kconfig | 1 + include/linux/init_task.h | 8 +++++++- include/linux/sched.h | 2 ++ 10 files changed, 20 insertions(+), 1 deletion(-) diff -puN fs/Kconfig~task_struct-make-journal_info-conditional fs/Kconfig --- a/fs/Kconfig~task_struct-make-journal_info-conditional +++ a/fs/Kconfig @@ -6,6 +6,10 @@ menu "File systems" if BLOCK +config FS_JOURNAL_INFO + bool + default n + source "fs/ext2/Kconfig" source "fs/ext3/Kconfig" source "fs/ext4/Kconfig" diff -puN fs/btrfs/Kconfig~task_struct-make-journal_info-conditional fs/btrfs/Kconfig --- a/fs/btrfs/Kconfig~task_struct-make-journal_info-conditional +++ a/fs/btrfs/Kconfig @@ -4,6 +4,7 @@ config BTRFS_FS select LIBCRC32C select ZLIB_INFLATE select ZLIB_DEFLATE + select FS_JOURNAL_INFO help Btrfs is a new filesystem with extents, writable snapshotting, support for multiple devices and many more features. diff -puN fs/ext4/Kconfig~task_struct-make-journal_info-conditional fs/ext4/Kconfig --- a/fs/ext4/Kconfig~task_struct-make-journal_info-conditional +++ a/fs/ext4/Kconfig @@ -2,6 +2,7 @@ config EXT4_FS tristate "The Extended 4 (ext4) filesystem" select JBD2 select CRC16 + select FS_JOURNAL_INFO help This is the next generation of the ext3 filesystem. diff -puN fs/gfs2/Kconfig~task_struct-make-journal_info-conditional fs/gfs2/Kconfig --- a/fs/gfs2/Kconfig~task_struct-make-journal_info-conditional +++ a/fs/gfs2/Kconfig @@ -10,6 +10,7 @@ config GFS2_FS select SLOW_WORK select QUOTA select QUOTACTL + select FS_JOURNAL_INFO help A cluster filesystem. diff -puN fs/jbd/Kconfig~task_struct-make-journal_info-conditional fs/jbd/Kconfig --- a/fs/jbd/Kconfig~task_struct-make-journal_info-conditional +++ a/fs/jbd/Kconfig @@ -1,5 +1,6 @@ config JBD tristate + select FS_JOURNAL_INFO help This is a generic journalling layer for block devices. It is currently used by the ext3 file system, but it could also be diff -puN fs/jbd2/Kconfig~task_struct-make-journal_info-conditional fs/jbd2/Kconfig --- a/fs/jbd2/Kconfig~task_struct-make-journal_info-conditional +++ a/fs/jbd2/Kconfig @@ -1,6 +1,7 @@ config JBD2 tristate select CRC32 + select FS_JOURNAL_INFO help This is a generic journaling layer for block devices that support both 32-bit and 64-bit block numbers. It is currently used by diff -puN fs/nilfs2/Kconfig~task_struct-make-journal_info-conditional fs/nilfs2/Kconfig --- a/fs/nilfs2/Kconfig~task_struct-make-journal_info-conditional +++ a/fs/nilfs2/Kconfig @@ -2,6 +2,7 @@ config NILFS2_FS tristate "NILFS2 file system support (EXPERIMENTAL)" depends on EXPERIMENTAL select CRC32 + select FS_JOURNAL_INFO help NILFS2 is a log-structured file system (LFS) supporting continuous snapshotting. In addition to versioning capability of the entire diff -puN fs/reiserfs/Kconfig~task_struct-make-journal_info-conditional fs/reiserfs/Kconfig --- a/fs/reiserfs/Kconfig~task_struct-make-journal_info-conditional +++ a/fs/reiserfs/Kconfig @@ -1,6 +1,7 @@ config REISERFS_FS tristate "Reiserfs support" select CRC32 + select FS_JOURNAL_INFO help Stores not just filenames but the files themselves in a balanced tree. Uses journalling. diff -puN include/linux/init_task.h~task_struct-make-journal_info-conditional include/linux/init_task.h --- a/include/linux/init_task.h~task_struct-make-journal_info-conditional +++ a/include/linux/init_task.h @@ -111,6 +111,12 @@ extern struct cred init_cred; # define INIT_PERF_EVENTS(tsk) #endif +#ifdef CONFIG_FS_JOURNAL_INFO +#define INIT_JOURNAL_INFO .journal_info = NULL, +#else +#define INIT_JOURNAL_INFO +#endif + /* * INIT_TASK is used to set up the first task table, touch at * your own risk!. Base=0, limit=0x1fffff (=2MB) @@ -162,7 +168,6 @@ extern struct cred init_cred; .signal = {{0}}}, \ .blocked = {{0}}, \ .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \ - .journal_info = NULL, \ .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ .fs_excl = ATOMIC_INIT(0), \ .pi_lock = __SPIN_LOCK_UNLOCKED(tsk.pi_lock), \ @@ -173,6 +178,7 @@ extern struct cred init_cred; [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \ }, \ .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \ + INIT_JOURNAL_INFO \ INIT_IDS \ INIT_PERF_EVENTS(tsk) \ INIT_TRACE_IRQFLAGS \ diff -puN include/linux/sched.h~task_struct-make-journal_info-conditional include/linux/sched.h --- a/include/linux/sched.h~task_struct-make-journal_info-conditional +++ a/include/linux/sched.h @@ -1452,8 +1452,10 @@ struct task_struct { gfp_t lockdep_reclaim_gfp; #endif +#ifdef CONFIG_FS_JOURNAL_INFO /* journalling filesystem info */ void *journal_info; +#endif /* stacked block device info */ struct bio *bio_list, **bio_tail; _ Patches currently in -mm which might be from h-shimamoto@xxxxxxxxxxxxx are linux-next.patch kernelh-add-printk_ratelimited-and-pr_level_rl.patch kernelh-add-printk_ratelimited-and-pr_level_rl-checkpatch-fixes.patch kernelh-add-printk_ratelimited-and-pr_level_rl-rename.patch task_struct-make-journal_info-conditional.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html