The patch titled
preadv/pwritev: create compat_writev()
has been added to the -mm tree. Its filename is
preadv-pwritev-create-compat_writev.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: preadv/pwritev: create compat_writev()
From: Gerd Hoffmann <[email protected]>
Factor out some code from compat_sys_writev() which can be shared with the
upcoming compat_sys_pwritev().
Signed-off-by: Gerd Hoffmann <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Al Viro <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: Ralf Baechle <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
fs/compat.c | 25 ++++++++++++++++++-------
1 file changed, 18 insertions(+), 7 deletions(-)
diff -puN fs/compat.c~preadv-pwritev-create-compat_writev fs/compat.c
--- a/fs/compat.c~preadv-pwritev-create-compat_writev
+++ a/fs/compat.c
@@ -1204,15 +1204,12 @@ compat_sys_readv(unsigned long fd, const
return ret;
}
-asmlinkage ssize_t
-compat_sys_writev(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen)
+static size_t compat_writev(struct file *file,
+ const struct compat_iovec __user *vec,
+ unsigned long vlen, loff_t *pos)
{
- struct file *file;
ssize_t ret = -EBADF;
- file = fget(fd);
- if (!file)
- return -EBADF;
if (!(file->f_mode & FMODE_WRITE))
goto out;
@@ -1220,12 +1217,26 @@ compat_sys_writev(unsigned long fd, cons
if (!file->f_op || (!file->f_op->aio_write && !file->f_op->write))
goto out;
- ret = compat_do_readv_writev(WRITE, file, vec, vlen, &file->f_pos);
+ ret = compat_do_readv_writev(WRITE, file, vec, vlen, pos);
out:
if (ret > 0)
add_wchar(current, ret);
inc_syscw(current);
+ return ret;
+}
+
+asmlinkage ssize_t
+compat_sys_writev(unsigned long fd, const struct compat_iovec __user *vec,
+ unsigned long vlen)
+{
+ struct file *file;
+ ssize_t ret;
+
+ file = fget(fd);
+ if (!file)
+ return -EBADF;
+ ret = compat_writev(file, vec, vlen, &file->f_pos);
fput(file);
return ret;
}
_
Patches currently in -mm which might be from [email protected] are
linux-next.patch
preadv-pwritev-create-compat_readv.patch
preadv-pwritev-create-compat_writev.patch
preadv-pwritev-add-preadv-and-pwritev-system-calls.patch
preadv-pwritev-mips-add-preadv2-and-pwritev2-syscalls.patch
preadv-pwritev-switch-compat-readv-preadv-writev-pwritev-from-fget-to-fget_light.patch
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