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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2010-07-25 14:29:18 +0300 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-08-07 18:53:56 +0200 |
| commit | ecd584030da67ede1bf17955746a6ce834d9fc6b (patch) | |
| tree | 3f26260102a84e8cb047249e65cdde6b9aadcb96 /include/linux/backing-dev.h | |
| parent | 78c40cb6581a74adc48821f3de6b864a54d4c34d (diff) | |
| download | op-kernel-dev-ecd584030da67ede1bf17955746a6ce834d9fc6b.zip op-kernel-dev-ecd584030da67ede1bf17955746a6ce834d9fc6b.tar.gz | |
writeback: move last_active to bdi
Currently bdi threads use local variable 'last_active' which stores last time
when the bdi thread did some useful work. Move this local variable to 'struct
bdi_writeback'. This is just a preparation for the further patches which will
make the forker thread decide when bdi threads should be killed.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'include/linux/backing-dev.h')
| -rw-r--r-- | include/linux/backing-dev.h | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 95ecb2b..71b6223 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -45,15 +45,16 @@ enum bdi_stat_item { #define BDI_STAT_BATCH (8*(1+ilog2(nr_cpu_ids))) struct bdi_writeback { - struct backing_dev_info *bdi; /* our parent bdi */ + struct backing_dev_info *bdi; /* our parent bdi */ unsigned int nr; - unsigned long last_old_flush; /* last old data flush */ + unsigned long last_old_flush; /* last old data flush */ + unsigned long last_active; /* last time bdi thread was active */ - struct task_struct *task; /* writeback thread */ - struct list_head b_dirty; /* dirty inodes */ - struct list_head b_io; /* parked for writeback */ - struct list_head b_more_io; /* parked for more writeback */ + struct task_struct *task; /* writeback thread */ + struct list_head b_dirty; /* dirty inodes */ + struct list_head b_io; /* parked for writeback */ + struct list_head b_more_io; /* parked for more writeback */ }; struct backing_dev_info { |
