#include <linux/string.h> /* memset */
#include <linux/capability.h>
#include <linux/errno.h>
-#include <linux/smp_lock.h>
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
#include <linux/aio.h>
size_t count = iocb->ki_left;
struct udf_inode_info *iinfo = UDF_I(inode);
+ down_write(&iinfo->i_data_sem);
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
if (file->f_flags & O_APPEND)
pos = inode->i_size;
udf_expand_file_adinicb(inode, pos + count, &err);
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
udf_debug("udf_expand_adinicb: err=%d\n", err);
+ up_write(&iinfo->i_data_sem);
return err;
}
} else {
iinfo->i_lenAlloc = inode->i_size;
}
}
+ up_write(&iinfo->i_data_sem);
retval = generic_file_aio_write(iocb, iov, nr_segs, ppos);
if (retval > 0)
long old_block, new_block;
int result = -EINVAL;
- lock_kernel();
-
if (file_permission(filp, MAY_READ) != 0) {
udf_debug("no permission to access inode %lu\n", inode->i_ino);
result = -EPERM;
}
out:
- unlock_kernel();
return result;
}
{
if (filp->f_mode & FMODE_WRITE) {
mutex_lock(&inode->i_mutex);
- lock_kernel();
+ down_write(&UDF_I(inode)->i_data_sem);
udf_discard_prealloc(inode);
udf_truncate_tail_extent(inode);
- unlock_kernel();
+ up_write(&UDF_I(inode)->i_data_sem);
mutex_unlock(&inode->i_mutex);
}
return 0;