lkml.org 
[lkml]   [2017]   [Sep]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 02/17] autofs4: switch autofs4_write to __kernel_write
Date
Instead of playing games with the address limit..

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/autofs4/waitq.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 24a58bf9ca72..4ac49d038bf3 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -56,19 +56,14 @@ static int autofs4_write(struct autofs_sb_info *sbi,
struct file *file, const void *addr, int bytes)
{
unsigned long sigpipe, flags;
- mm_segment_t fs;
const char *data = (const char *)addr;
ssize_t wr = 0;

sigpipe = sigismember(&current->pending.signal, SIGPIPE);

- /* Save pointer to user space and point back to kernel space */
- fs = get_fs();
- set_fs(KERNEL_DS);
-
mutex_lock(&sbi->pipe_mutex);
while (bytes) {
- wr = __vfs_write(file, data, bytes, &file->f_pos);
+ wr = __kernel_write(file, data, bytes, &file->f_pos);
if (wr <= 0)
break;
data += wr;
@@ -76,8 +71,6 @@ static int autofs4_write(struct autofs_sb_info *sbi,
}
mutex_unlock(&sbi->pipe_mutex);

- set_fs(fs);
-
/* Keep the currently executing process from receiving a
* SIGPIPE unless it was already supposed to get one
*/
--
2.11.0
\
 
 \ /
  Last update: 2017-09-01 17:39    [W:0.116 / U:4.036 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site