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authorArnd Bergmann <arnd@arndb.de>2010-04-27 16:24:20 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2010-05-17 05:27:03 +0200
commit7cc4bcc6f152d365eb27acba5dcb7b38b36b3e50 (patch)
treed419f8f70942691cebabf94fd4d218f61a7736d7
parente40152ee1e1c7a63f4777791863215e3faa37a86 (diff)
hfsplus: Push down BKL into ioctl function
HFS is one of the remaining users of the ->ioctl function, convert it blindly to unlocked_ioctl by pushing down the BKL. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
-rw-r--r--fs/hfsplus/dir.c2
-rw-r--r--fs/hfsplus/hfsplus_fs.h3
-rw-r--r--fs/hfsplus/inode.c2
-rw-r--r--fs/hfsplus/ioctl.c12
4 files changed, 12 insertions, 7 deletions
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index 5f4023678251..764fd1bdca88 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -494,7 +494,7 @@ const struct inode_operations hfsplus_dir_inode_operations = {
const struct file_operations hfsplus_dir_operations = {
.read = generic_read_dir,
.readdir = hfsplus_readdir,
- .ioctl = hfsplus_ioctl,
+ .unlocked_ioctl = hfsplus_ioctl,
.llseek = generic_file_llseek,
.release = hfsplus_dir_release,
};
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index 5c10d803d9df..6505c30ad965 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -337,8 +337,7 @@ struct inode *hfsplus_new_inode(struct super_block *, int);
void hfsplus_delete_inode(struct inode *);
/* ioctl.c */
-int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg);
+long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
int hfsplus_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 1bcf597c0562..9bbb82924a22 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -285,7 +285,7 @@ static const struct file_operations hfsplus_file_operations = {
.fsync = file_fsync,
.open = hfsplus_file_open,
.release = hfsplus_file_release,
- .ioctl = hfsplus_ioctl,
+ .unlocked_ioctl = hfsplus_ioctl,
};
struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c
index f457d2ca51ab..ac405f099026 100644
--- a/fs/hfsplus/ioctl.c
+++ b/fs/hfsplus/ioctl.c
@@ -17,14 +17,16 @@
#include <linux/mount.h>
#include <linux/sched.h>
#include <linux/xattr.h>
+#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#include "hfsplus_fs.h"
-int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
+long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
+ struct inode *inode = filp->f_path.dentry->d_inode;
unsigned int flags;
+ lock_kernel();
switch (cmd) {
case HFSPLUS_IOC_EXT2_GETFLAGS:
flags = 0;
@@ -38,8 +40,10 @@ int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
case HFSPLUS_IOC_EXT2_SETFLAGS: {
int err = 0;
err = mnt_want_write(filp->f_path.mnt);
- if (err)
+ if (err) {
+ unlock_kernel();
return err;
+ }
if (!is_owner_or_cap(inode)) {
err = -EACCES;
@@ -85,9 +89,11 @@ int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
mark_inode_dirty(inode);
setflags_out:
mnt_drop_write(filp->f_path.mnt);
+ unlock_kernel();
return err;
}
default:
+ unlock_kernel();
return -ENOTTY;
}
}