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authorRichard Kennedy <richard@rsk.demon.co.uk>2008-05-15 12:09:15 +0100
committerIngo Molnar <mingo@elte.hu>2008-06-06 15:19:35 +0200
commitc7aceaba042702538b23cf4e0de1b2891ad8e671 (patch)
treeaecf427f32aba870d7beed983e6e3917bb6aed6b /include/linux/sched.h
parent81d41d7ece23a1c3b4bcd1604026d3a06cc4dc79 (diff)
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/linux/sched.h')
-rw-r--r--include/linux/sched.h16
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;