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Subject[PATCH] Tiny reordering of some fields of task_struct
(First post & first patch so please be kind O:))

Playing with some things (I'm just beginning with this whole kernel stuff) I
found that there are three filesystem-related members in task_struct that
aren't together:

/* file system info */
int link_count, total_link_count;
/* ipc stuff */
struct sysv_sem sysvsem;
/* CPU-specific state of this task */
struct thread_struct thread;
/* filesystem information */
struct fs_struct *fs;

[...]

/* journalling filesystem info */
void *journal_info;

Perhaps there is some reason to have them as they are now but if that's not
the case, this joins them together. It's against 2.6.12-rc3.

Signed-off-by: David Serrano <dserrano5@gmail.com>

--- linux-2.6.12-rc3/include/linux/sched.h.orig 2005-04-28 22:05:05.000000000 +0200
+++ linux-2.6.12-rc3/include/linux/sched.h 2005-04-28 22:05:07.000000000 +0200
@@ -616,14 +616,14 @@ struct task_struct {
#endif
int oomkilladj; /* OOM kill score adjustment (bit shift). */
char comm[TASK_COMM_LEN];
-/* file system info */
+/* filesystem information */
int link_count, total_link_count;
+ struct fs_struct *fs;
+ void *journal_info;
/* ipc stuff */
struct sysv_sem sysvsem;
/* CPU-specific state of this task */
struct thread_struct thread;
-/* filesystem information */
- struct fs_struct *fs;
/* open file information */
struct files_struct *files;
/* namespace */
@@ -654,9 +654,6 @@ struct task_struct {
/* context-switch lock */
spinlock_t switch_lock;

-/* journalling filesystem info */
- void *journal_info;
-
/* VM state */
struct reclaim_state *reclaim_state;


--
David Serrano
-
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