This adds the palloc cache to DAT file. The palloc cache is allocated on the extended region of nilfs_mdt_info struct. The struct nilfs_dat_info defines the extended on memory structure of DAT.
Signed-off-by: Ryusuke Konishi <[email protected]> --- fs/nilfs2/dat.c | 18 ++++++++++++++++-- 1 files changed, 16 insertions(+), 2 deletions(-) diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c index eff3169..187dd07 100644 --- a/fs/nilfs2/dat.c +++ b/fs/nilfs2/dat.c @@ -33,6 +33,16 @@ #define NILFS_CNO_MIN ((__u64)1) #define NILFS_CNO_MAX (~(__u64)0) +struct nilfs_dat_info { + struct nilfs_mdt_info mi; + struct nilfs_palloc_cache palloc_cache; +}; + +static inline struct nilfs_dat_info *NILFS_DAT_I(struct inode *dat) +{ + return (struct nilfs_dat_info *)NILFS_MDT(dat); +} + static int nilfs_dat_prepare_entry(struct inode *dat, struct nilfs_palloc_req *req, int create) { @@ -445,16 +455,20 @@ struct inode *nilfs_dat_new(struct the_nilfs *nilfs, size_t entry_size) { static struct lock_class_key dat_lock_key; struct inode *dat; + struct nilfs_dat_info *di; int err; - dat = nilfs_mdt_new(nilfs, NULL, NILFS_DAT_INO, 0); + dat = nilfs_mdt_new(nilfs, NULL, NILFS_DAT_INO, sizeof(*di)); if (dat) { err = nilfs_palloc_init_blockgroup(dat, entry_size); if (unlikely(err)) { nilfs_mdt_destroy(dat); return NULL; } - lockdep_set_class(&NILFS_MDT(dat)->mi_sem, &dat_lock_key); + + di = NILFS_DAT_I(dat); + lockdep_set_class(&di->mi.mi_sem, &dat_lock_key); + nilfs_palloc_setup_cache(dat, &di->palloc_cache); } return dat; } -- 1.6.3.4 _______________________________________________ users mailing list [email protected] https://www.nilfs.org/mailman/listinfo/users
