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Groups > linux.kernel > #1723432
| From | Christoph Hellwig <hch@lst.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 09/16] net/9p: switch p9_fd_read to kernel_write |
| Date | 2017-08-30 17:10 +0200 |
| Message-ID | <ukcMY-1sy-41@gated-at.bofh.it> (permalink) |
| References | <ukcMW-1sy-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Instead of playing with the addressing limits.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
net/9p/trans_fd.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index f12815777beb..903a190319b9 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -422,8 +422,7 @@ static void p9_read_work(struct work_struct *work)
static int p9_fd_write(struct p9_client *client, void *v, int len)
{
- int ret;
- mm_segment_t oldfs;
+ ssize_t ret;
struct p9_trans_fd *ts = NULL;
if (client && client->status != Disconnected)
@@ -435,12 +434,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len)
if (!(ts->wr->f_flags & O_NONBLOCK))
p9_debug(P9_DEBUG_ERROR, "blocking write ...\n");
- oldfs = get_fs();
- set_fs(get_ds());
- /* The cast to a user pointer is valid due to the set_fs() */
- ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos);
- set_fs(oldfs);
-
+ ret = kernel_write(ts->wr, v, len, &ts->wr->f_pos);
if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
client->status = Disconnected;
return ret;
--
2.11.0
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switch in-kernel read/write calls to kernel_read/write Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
[PATCH 08/16] mm/nommu: switch do_mmap_private to kernel_read Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
Re: [PATCH 08/16] mm/nommu: switch do_mmap_private to kernel_read Al Viro <viro@ZenIV.linux.org.uk> - 2017-08-30 17:50 +0200
Re: [PATCH 08/16] mm/nommu: switch do_mmap_private to kernel_read Christoph Hellwig <hch@lst.de> - 2017-09-01 12:50 +0200
[PATCH 09/16] net/9p: switch p9_fd_read to kernel_write Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
[PATCH 15/16] fs: unexport vfs_read and vfs_write Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
[PATCH 02/16] autofs4: switch autofs4_write to __kernel_write Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
Re: [PATCH 02/16] autofs4: switch autofs4_write to __kernel_write Al Viro <viro@ZenIV.linux.org.uk> - 2017-08-30 17:40 +0200
Re: [PATCH 02/16] autofs4: switch autofs4_write to __kernel_write Christoph Hellwig <hch@lst.de> - 2017-09-01 12:30 +0200
[PATCH 13/16] lustre: switch to kernel_write Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
[PATCH 03/16] fs: move kernel_write to fs/read_write.c Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
[PATCH 04/16] fs: move kernel_read to fs/read_write.c Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
[PATCH 06/16] fs: fix kernel_write prototype Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
Re: [PATCH 06/16] fs: fix kernel_write prototype Al Viro <viro@ZenIV.linux.org.uk> - 2017-08-30 17:40 +0200
Re: [PATCH 06/16] fs: fix kernel_write prototype Christoph Hellwig <hch@lst.de> - 2017-09-01 12:50 +0200
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