diff options
| author | Richard Kennedy <richard@rsk.demon.co.uk> | 2008-05-15 12:09:15 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-06 15:19:35 +0200 |
| commit | c7aceaba042702538b23cf4e0de1b2891ad8e671 (patch) | |
| tree | aecf427f32aba870d7beed983e6e3917bb6aed6b /include | |
| parent | 81d41d7ece23a1c3b4bcd1604026d3a06cc4dc79 (diff) | |
| download | blackbird-op-linux-c7aceaba042702538b23cf4e0de1b2891ad8e671.tar.gz blackbird-op-linux-c7aceaba042702538b23cf4e0de1b2891ad8e671.zip | |
sched: reorder task_struct to reduce padding on 64bit builds
This patch removes 24 bytes of padding and allows 1 extra object per
slab on my fedora based config.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sched.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index dc36c3aea018..ea2857b99596 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1021,6 +1021,7 @@ struct task_struct { #endif int prio, static_prio, normal_prio; + unsigned int rt_priority; const struct sched_class *sched_class; struct sched_entity se; struct sched_rt_entity rt; @@ -1104,7 +1105,6 @@ struct task_struct { int __user *set_child_tid; /* CLONE_CHILD_SETTID */ int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */ - unsigned int rt_priority; cputime_t utime, stime, utimescaled, stimescaled; cputime_t gtime; cputime_t prev_utime, prev_stime; @@ -1123,12 +1123,12 @@ struct task_struct { gid_t gid,egid,sgid,fsgid; struct group_info *group_info; kernel_cap_t cap_effective, cap_inheritable, cap_permitted, cap_bset; - unsigned securebits; struct user_struct *user; + unsigned securebits; #ifdef CONFIG_KEYS + unsigned char jit_keyring; /* default keyring to attach requested keys to */ struct key *request_key_auth; /* assumed request_key authority */ struct key *thread_keyring; /* keyring private to this thread */ - unsigned char jit_keyring; /* default keyring to attach requested keys to */ #endif char comm[TASK_COMM_LEN]; /* executable name excluding path - access with [gs]et_task_comm (which lock @@ -1215,8 +1215,8 @@ struct task_struct { # define MAX_LOCK_DEPTH 48UL u64 curr_chain_key; int lockdep_depth; - struct held_lock held_locks[MAX_LOCK_DEPTH]; unsigned int lockdep_recursion; + struct held_lock held_locks[MAX_LOCK_DEPTH]; #endif /* journalling filesystem info */ @@ -1244,10 +1244,6 @@ struct task_struct { u64 acct_vm_mem1; /* accumulated virtual memory usage */ cputime_t acct_stimexpd;/* stime since last update */ #endif -#ifdef CONFIG_NUMA - struct mempolicy *mempolicy; - short il_next; -#endif #ifdef CONFIG_CPUSETS nodemask_t mems_allowed; int cpuset_mems_generation; @@ -1267,6 +1263,10 @@ struct task_struct { struct list_head pi_state_list; struct futex_pi_state *pi_state_cache; #endif +#ifdef CONFIG_NUMA + struct mempolicy *mempolicy; + short il_next; +#endif atomic_t fs_excl; /* holding fs exclusive resources */ struct rcu_head rcu; |
