fs: fix kernel_write prototype
Make the position an in/out argument like all the other read/write
helpers and and make the buf argument a void pointer.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index a808965..3300a77 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -1395,7 +1395,7 @@
if (err)
return err;
noreclaim_flag = memalloc_noreclaim_save();
- tx = kernel_write(file, buf, count, pos);
+ tx = kernel_write(file, buf, count, &pos);
memalloc_noreclaim_restore(noreclaim_flag);
put_pages(ns);
return tx;
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index a91b7c2..9281276 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -896,13 +896,14 @@
u32 md_buf_len)
{
struct file *file = filp_open(path, O_RDWR | O_CREAT | O_TRUNC, 0600);
+ loff_t pos = 0;
int ret;
if (IS_ERR(file)) {
pr_err("filp_open(%s) for ALUA metadata failed\n", path);
return -ENODEV;
}
- ret = kernel_write(file, md_buf, md_buf_len, 0);
+ ret = kernel_write(file, md_buf, md_buf_len, &pos);
if (ret < 0)
pr_err("Error writing ALUA metadata file: %s\n", path);
fput(file);
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 24cf11d..c629817 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -443,7 +443,7 @@
for (prot = 0; prot < prot_length;) {
sector_t len = min_t(sector_t, bufsize, prot_length - prot);
- ssize_t ret = kernel_write(prot_fd, buf, len, pos + prot);
+ ssize_t ret = kernel_write(prot_fd, buf, len, &pos);
if (ret != len) {
pr_err("vfs_write to prot file failed: %zd\n", ret);
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 6d5def6..dd2cd80 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -1974,6 +1974,7 @@
char path[512];
u32 pr_aptpl_buf_len;
int ret;
+ loff_t pos = 0;
memset(path, 0, 512);
@@ -1993,7 +1994,7 @@
pr_aptpl_buf_len = (strlen(buf) + 1); /* Add extra for NULL */
- ret = kernel_write(file, buf, pr_aptpl_buf_len, 0);
+ ret = kernel_write(file, buf, pr_aptpl_buf_len, &pos);
if (ret < 0)
pr_debug("Error writing APTPL metadata file: %s\n", path);
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index d8af0e9..c596e7c 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -47,7 +47,7 @@
lower_file = ecryptfs_inode_to_private(ecryptfs_inode)->lower_file;
if (!lower_file)
return -EIO;
- rc = kernel_write(lower_file, data, size, offset);
+ rc = kernel_write(lower_file, data, size, &offset);
mark_inode_dirty_sync(ecryptfs_inode);
return rc;
}
diff --git a/fs/read_write.c b/fs/read_write.c
index 9cf1de8..9f3aeb1 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -512,8 +512,8 @@
}
EXPORT_SYMBOL(__kernel_write);
-ssize_t kernel_write(struct file *file, const char *buf, size_t count,
- loff_t pos)
+ssize_t kernel_write(struct file *file, const void *buf, size_t count,
+ loff_t *pos)
{
mm_segment_t old_fs;
ssize_t res;
@@ -521,7 +521,7 @@
old_fs = get_fs();
set_fs(get_ds());
/* The cast to a user pointer is valid due to the set_fs() */
- res = vfs_write(file, (__force const char __user *)buf, count, &pos);
+ res = vfs_write(file, (__force const char __user *)buf, count, pos);
set_fs(old_fs);
return res;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2ba8f38..0e7d3da8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2779,7 +2779,7 @@
extern int kernel_read_file_from_fd(int, void **, loff_t *, loff_t,
enum kernel_read_file_id);
extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
-extern ssize_t kernel_write(struct file *, const char *, size_t, loff_t);
+extern ssize_t kernel_write(struct file *, const void *, size_t, loff_t *);
extern ssize_t __kernel_write(struct file *, const char *, size_t, loff_t *);
extern struct file * open_exec(const char *);
diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index 243fa1c..58ea8c0 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -1017,6 +1017,7 @@
size_t length = newlen / sizeof(*vec);
char *str, *end;
int i;
+ loff_t pos = 0;
str = buffer;
end = str + BUFSZ;
@@ -1030,7 +1031,7 @@
str += scnprintf(str, end - str, "%lu\t", value);
}
- result = kernel_write(file, buffer, str - buffer, 0);
+ result = kernel_write(file, buffer, str - buffer, &pos);
if (result < 0)
goto out_kfree;
}
@@ -1089,6 +1090,7 @@
size_t length = newlen / sizeof(*vec);
char *str, *end;
int i;
+ loff_t pos = 0;
str = buffer;
end = str + BUFSZ;
@@ -1102,7 +1104,7 @@
str += scnprintf(str, end - str, "%lu\t", value);
}
- result = kernel_write(file, buffer, str - buffer, 0);
+ result = kernel_write(file, buffer, str - buffer, &pos);
if (result < 0)
goto out_kfree;
}
@@ -1192,6 +1194,7 @@
__le16 dnaddr;
char buf[15];
int len;
+ loff_t pos = 0;
result = -EINVAL;
if (newlen != sizeof(dnaddr))
@@ -1205,7 +1208,7 @@
le16_to_cpu(dnaddr) >> 10,
le16_to_cpu(dnaddr) & 0x3ff);
- result = kernel_write(file, buf, len, 0);
+ result = kernel_write(file, buf, len, &pos);
if (result < 0)
goto out;
}
diff --git a/security/keys/big_key.c b/security/keys/big_key.c
index 9f4c86c..6acb00f 100644
--- a/security/keys/big_key.c
+++ b/security/keys/big_key.c
@@ -147,6 +147,7 @@
* File content is stored encrypted with randomly generated key.
*/
size_t enclen = ALIGN(datalen, crypto_skcipher_blocksize(big_key_skcipher));
+ loff_t pos = 0;
/* prepare aligned data to encrypt */
data = kmalloc(enclen, GFP_KERNEL);
@@ -179,7 +180,7 @@
goto err_enckey;
}
- written = kernel_write(file, data, enclen, 0);
+ written = kernel_write(file, data, enclen, &pos);
if (written != enclen) {
ret = written;
if (written >= 0)