kernel: remove PF_FLUSHER
Peter Zijlstra [Tue, 26 Oct 2010 21:22:45 +0000 (14:22 -0700)]
PF_FLUSHER is only ever set, not tested, remove it.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/fs-writeback.c
include/linux/sched.h
mm/backing-dev.c

index b5aae4b..9e46aec 100644 (file)
@@ -794,7 +794,7 @@ int bdi_writeback_thread(void *data)
        struct backing_dev_info *bdi = wb->bdi;
        long pages_written;
 
-       current->flags |= PF_FLUSHER | PF_SWAPWRITE;
+       current->flags |= PF_SWAPWRITE;
        set_freezable();
        wb->last_active = jiffies;
 
index 56154bb..393ce94 100644 (file)
@@ -1706,7 +1706,6 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *
 #define PF_DUMPCORE    0x00000200      /* dumped core */
 #define PF_SIGNALED    0x00000400      /* killed by a signal */
 #define PF_MEMALLOC    0x00000800      /* Allocating memory */
-#define PF_FLUSHER     0x00001000      /* responsible for disk writeback */
 #define PF_USED_MATH   0x00002000      /* if unset the fpu must be initialized before use */
 #define PF_FREEZING    0x00004000      /* freeze in progress. do not account to load */
 #define PF_NOFREEZE    0x00008000      /* this thread should not be frozen */
index 5ad3c10..f2eb278 100644 (file)
@@ -362,7 +362,7 @@ static int bdi_forker_thread(void *ptr)
 {
        struct bdi_writeback *me = ptr;
 
-       current->flags |= PF_FLUSHER | PF_SWAPWRITE;
+       current->flags |= PF_SWAPWRITE;
        set_freezable();
 
        /*