diff options
Diffstat (limited to 'fs/open.c')
-rw-r--r-- | fs/open.c | 64 |
1 files changed, 30 insertions, 34 deletions
diff --git a/fs/open.c b/fs/open.c index 3c741eae6b99..85603262d8db 100644 --- a/fs/open.c +++ b/fs/open.c @@ -134,25 +134,25 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small) { struct inode *inode; struct dentry *dentry; - struct file *file; - int error, fput_needed; + struct fd f; + int error; error = -EINVAL; if (length < 0) goto out; error = -EBADF; - file = fget_light(fd, &fput_needed); - if (!file) + f = fdget(fd); + if (!f.file) goto out; /* explicitly opened as large or we are on 64-bit box */ - if (file->f_flags & O_LARGEFILE) + if (f.file->f_flags & O_LARGEFILE) small = 0; - dentry = file->f_path.dentry; + dentry = f.file->f_path.dentry; inode = dentry->d_inode; error = -EINVAL; - if (!S_ISREG(inode->i_mode) || !(file->f_mode & FMODE_WRITE)) + if (!S_ISREG(inode->i_mode) || !(f.file->f_mode & FMODE_WRITE)) goto out_putf; error = -EINVAL; @@ -165,14 +165,14 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small) goto out_putf; sb_start_write(inode->i_sb); - error = locks_verify_truncate(inode, file, length); + error = locks_verify_truncate(inode, f.file, length); if (!error) - error = security_path_truncate(&file->f_path); + error = security_path_truncate(&f.file->f_path); if (!error) - error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, file); + error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, f.file); sb_end_write(inode->i_sb); out_putf: - fput_light(file, fput_needed); + fdput(f); out: return error; } @@ -276,15 +276,13 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len) SYSCALL_DEFINE(fallocate)(int fd, int mode, loff_t offset, loff_t len) { - struct file *file; - int error = -EBADF, fput_needed; + struct fd f = fdget(fd); + int error = -EBADF; - file = fget_light(fd, &fput_needed); - if (file) { - error = do_fallocate(file, mode, offset, len); - fput_light(file, fput_needed); + if (f.file) { + error = do_fallocate(f.file, mode, offset, len); + fdput(f); } - return error; } @@ -400,16 +398,15 @@ out: SYSCALL_DEFINE1(fchdir, unsigned int, fd) { - struct file *file; + struct fd f = fdget_raw(fd); struct inode *inode; - int error, fput_needed; + int error = -EBADF; error = -EBADF; - file = fget_raw_light(fd, &fput_needed); - if (!file) + if (!f.file) goto out; - inode = file->f_path.dentry->d_inode; + inode = f.file->f_path.dentry->d_inode; error = -ENOTDIR; if (!S_ISDIR(inode->i_mode)) @@ -417,9 +414,9 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd) error = inode_permission(inode, MAY_EXEC | MAY_CHDIR); if (!error) - set_fs_pwd(current->fs, &file->f_path); + set_fs_pwd(current->fs, &f.file->f_path); out_putf: - fput_light(file, fput_needed); + fdput(f); out: return error; } @@ -582,21 +579,20 @@ SYSCALL_DEFINE3(lchown, const char __user *, filename, uid_t, user, gid_t, group SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group) { - struct file *file; - int error = -EBADF, fput_needed; + struct fd f = fdget(fd); + int error = -EBADF; - file = fget_light(fd, &fput_needed); - if (!file) + if (!f.file) goto out; - error = mnt_want_write_file(file); + error = mnt_want_write_file(f.file); if (error) goto out_fput; - audit_inode(NULL, file->f_path.dentry); - error = chown_common(&file->f_path, user, group); - mnt_drop_write_file(file); + audit_inode(NULL, f.file->f_path.dentry); + error = chown_common(&f.file->f_path, user, group); + mnt_drop_write_file(f.file); out_fput: - fput_light(file, fput_needed); + fdput(f); out: return error; } |