switch xattr syscalls to fget_light/fput_light

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/xattr.c b/fs/xattr.c
index 3c8c1cc..1d7ac37 100644 (file)
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -399,11 +399,12 @@ SYSCALL_DEFINE5(lsetxattr, const char __user *, pathname,
 SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
                const void __user *,value, size_t, size, int, flags)
 {
+       int fput_needed;
        struct file *f;
        struct dentry *dentry;
        int error = -EBADF;
 
-       f = fget(fd);
+       f = fget_light(fd, &fput_needed);
        if (!f)
                return error;
        dentry = f->f_path.dentry;
@@ -413,7 +414,7 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
                error = setxattr(dentry, name, value, size, flags);
                mnt_drop_write_file(f);
        }
-       fput(f);
+       fput_light(f, fput_needed);
        return error;
 }
 
@@ -486,15 +487,16 @@ SYSCALL_DEFINE4(lgetxattr, const char __user *, pathname,
 SYSCALL_DEFINE4(fgetxattr, int, fd, const char __user *, name,
                void __user *, value, size_t, size)
 {
+       int fput_needed;
        struct file *f;
        ssize_t error = -EBADF;
 
-       f = fget(fd);
+       f = fget_light(fd, &fput_needed);
        if (!f)
                return error;
        audit_inode(NULL, f->f_path.dentry);
        error = getxattr(f->f_path.dentry, name, value, size);
-       fput(f);
+       fput_light(f, fput_needed);
        return error;
 }
 
@@ -566,15 +568,16 @@ SYSCALL_DEFINE3(llistxattr, const char __user *, pathname, char __user *, list,
 
 SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size)
 {
+       int fput_needed;
        struct file *f;
        ssize_t error = -EBADF;
 
-       f = fget(fd);
+       f = fget_light(fd, &fput_needed);
        if (!f)
                return error;
        audit_inode(NULL, f->f_path.dentry);
        error = listxattr(f->f_path.dentry, list, size);
-       fput(f);
+       fput_light(f, fput_needed);
        return error;
 }
 
@@ -634,11 +637,12 @@ SYSCALL_DEFINE2(lremovexattr, const char __user *, pathname,
 
 SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
 {
+       int fput_needed;
        struct file *f;
        struct dentry *dentry;
        int error = -EBADF;
 
-       f = fget(fd);
+       f = fget_light(fd, &fput_needed);
        if (!f)
                return error;
        dentry = f->f_path.dentry;
@@ -648,7 +652,7 @@ SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
                error = removexattr(dentry, name);
                mnt_drop_write_file(f);
        }
-       fput(f);
+       fput_light(f, fput_needed);
        return error;
 }