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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-24 07:41:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-24 07:41:47 -0700
commit3e766fd41ddc31c47ec5b2840c6a45803d35ff40 (patch)
treef007442f20757918aa024dda848baa7670baa580 /fs/fat
parent4fd5ec509bd486b5dd8cac1a4d4d7e2cbdf7c546 (diff)
parent7845bc3e132605e3e8a1f37748e29281164b65f5 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6: fat: convert to unlocked_ioctl fat: Cleanup nls_unload() usage fat: use pack_hex_byte() instead of custom one
Diffstat (limited to 'fs/fat')
-rw-r--r--fs/fat/dir.c28
-rw-r--r--fs/fat/fat.h4
-rw-r--r--fs/fat/file.c19
-rw-r--r--fs/fat/inode.c6
4 files changed, 32 insertions, 25 deletions
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index 530b4ca01510..ee42b9e0b16a 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -19,6 +19,7 @@
#include <linux/buffer_head.h>
#include <linux/compat.h>
#include <asm/uaccess.h>
+#include <linux/kernel.h>
#include "fat.h"
/*
@@ -140,28 +141,22 @@ static int uni16_to_x8(unsigned char *ascii, const wchar_t *uni, int len,
{
const wchar_t *ip;
wchar_t ec;
- unsigned char *op, nc;
+ unsigned char *op;
int charlen;
- int k;
ip = uni;
op = ascii;
while (*ip && ((len - NLS_MAX_CHARSET_SIZE) > 0)) {
ec = *ip++;
- if ( (charlen = nls->uni2char(ec, op, NLS_MAX_CHARSET_SIZE)) > 0) {
+ if ((charlen = nls->uni2char(ec, op, NLS_MAX_CHARSET_SIZE)) > 0) {
op += charlen;
len -= charlen;
} else {
if (uni_xlate == 1) {
- *op = ':';
- for (k = 4; k > 0; k--) {
- nc = ec & 0xF;
- op[k] = nc > 9 ? nc + ('a' - 10)
- : nc + '0';
- ec >>= 4;
- }
- op += 5;
+ *op++ = ':';
+ op = pack_hex_byte(op, ec >> 8);
+ op = pack_hex_byte(op, ec);
len -= 5;
} else {
*op++ = '?';
@@ -758,9 +753,10 @@ static int fat_ioctl_readdir(struct inode *inode, struct file *filp,
return ret;
}
-static int fat_dir_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+static long fat_dir_ioctl(struct file *filp, unsigned int cmd,
+ unsigned long arg)
{
+ struct inode *inode = filp->f_path.dentry->d_inode;
struct __fat_dirent __user *d1 = (struct __fat_dirent __user *)arg;
int short_only, both;
@@ -774,7 +770,7 @@ static int fat_dir_ioctl(struct inode *inode, struct file *filp,
both = 1;
break;
default:
- return fat_generic_ioctl(inode, filp, cmd, arg);
+ return fat_generic_ioctl(filp, cmd, arg);
}
if (!access_ok(VERIFY_WRITE, d1, sizeof(struct __fat_dirent[2])))
@@ -814,7 +810,7 @@ static long fat_compat_dir_ioctl(struct file *filp, unsigned cmd,
both = 1;
break;
default:
- return -ENOIOCTLCMD;
+ return fat_generic_ioctl(filp, cmd, (unsigned long)arg);
}
if (!access_ok(VERIFY_WRITE, d1, sizeof(struct compat_dirent[2])))
@@ -836,7 +832,7 @@ const struct file_operations fat_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
.readdir = fat_readdir,
- .ioctl = fat_dir_ioctl,
+ .unlocked_ioctl = fat_dir_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = fat_compat_dir_ioctl,
#endif
diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index e6efdfa0f6db..eb821ee1a333 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -298,8 +298,8 @@ extern int fat_free_clusters(struct inode *inode, int cluster);
extern int fat_count_free_clusters(struct super_block *sb);
/* fat/file.c */
-extern int fat_generic_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
+extern long fat_generic_ioctl(struct file *filp, unsigned int cmd,
+ unsigned long arg);
extern const struct file_operations fat_file_operations;
extern const struct inode_operations fat_file_inode_operations;
extern int fat_setattr(struct dentry * dentry, struct iattr * attr);
diff --git a/fs/fat/file.c b/fs/fat/file.c
index e8c159de236b..a14c2f6a489e 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -8,6 +8,7 @@
#include <linux/capability.h>
#include <linux/module.h>
+#include <linux/compat.h>
#include <linux/mount.h>
#include <linux/time.h>
#include <linux/buffer_head.h>
@@ -114,9 +115,9 @@ out:
return err;
}
-int fat_generic_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+long fat_generic_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
+ struct inode *inode = filp->f_path.dentry->d_inode;
u32 __user *user_attr = (u32 __user *)arg;
switch (cmd) {
@@ -129,6 +130,15 @@ int fat_generic_ioctl(struct inode *inode, struct file *filp,
}
}
+#ifdef CONFIG_COMPAT
+static long fat_generic_compat_ioctl(struct file *filp, unsigned int cmd,
+ unsigned long arg)
+
+{
+ return fat_generic_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));
+}
+#endif
+
static int fat_file_release(struct inode *inode, struct file *filp)
{
if ((filp->f_mode & FMODE_WRITE) &&
@@ -159,7 +169,10 @@ const struct file_operations fat_file_operations = {
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
.release = fat_file_release,
- .ioctl = fat_generic_ioctl,
+ .unlocked_ioctl = fat_generic_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = fat_generic_compat_ioctl,
+#endif
.fsync = fat_file_fsync,
.splice_read = generic_file_splice_read,
};
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 0ce143bd7d56..c611818893b2 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1497,10 +1497,8 @@ out_fail:
iput(fat_inode);
if (root_inode)
iput(root_inode);
- if (sbi->nls_io)
- unload_nls(sbi->nls_io);
- if (sbi->nls_disk)
- unload_nls(sbi->nls_disk);
+ unload_nls(sbi->nls_io);
+ unload_nls(sbi->nls_disk);
if (sbi->options.iocharset != fat_default_iocharset)
kfree(sbi->options.iocharset);
sb->s_fs_info = NULL;