aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/exit.c
diff options
context:
space:
mode:
authorJens Axboe <axboe@suse.de>2006-04-11 07:52:07 -0400
committerJens Axboe <axboe@suse.de>2006-04-11 07:52:07 -0400
commitb92ce55893745e011edae70830b8bc863be881f9 (patch)
treee2afd62d2e63d74157905140f5907d07bdfe31b9 /kernel/exit.c
parent529565dcb1581c9a1e3f6df1c1763ca3e0f0d512 (diff)
[PATCH] splice: add direct fd <-> fd splicing support
It's more efficient for sendfile() emulation. Basically we cache an internal private pipe and just use that as the intermediate area for pages. Direct splicing is not available from sys_splice(), it is only meant to be used for sendfile() emulation. Additional patch from Ingo Molnar to avoid the PIPE_BUFFERS loop at exit for the normal fast path. Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'kernel/exit.c')
-rw-r--r--kernel/exit.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 6c2eeb8f6390..1a9787ac6173 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -34,6 +34,7 @@
34#include <linux/mutex.h> 34#include <linux/mutex.h>
35#include <linux/futex.h> 35#include <linux/futex.h>
36#include <linux/compat.h> 36#include <linux/compat.h>
37#include <linux/pipe_fs_i.h>
37 38
38#include <asm/uaccess.h> 39#include <asm/uaccess.h>
39#include <asm/unistd.h> 40#include <asm/unistd.h>
@@ -941,6 +942,9 @@ fastcall NORET_TYPE void do_exit(long code)
941 if (tsk->io_context) 942 if (tsk->io_context)
942 exit_io_context(); 943 exit_io_context();
943 944
945 if (tsk->splice_pipe)
946 __free_pipe_info(tsk->splice_pipe);
947
944 /* PF_DEAD causes final put_task_struct after we schedule. */ 948 /* PF_DEAD causes final put_task_struct after we schedule. */
945 preempt_disable(); 949 preempt_disable();
946 BUG_ON(tsk->flags & PF_DEAD); 950 BUG_ON(tsk->flags & PF_DEAD);