AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 08:40:53 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

xfs: reject swapext ioctl on swapfiles

Browse Source 
Swapfiles are magic - I/O is directly initialized by the VM without
involving the filesystem.  Swapping out extents underneath the VM thus
can cause severe problems.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
This commit is contained in:
Christoph Hellwig 2009-02-12 19:56:00 +01:00 committed by Christoph Hellwig
parent 264307520b
commit 7c8f7af67d
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
fs/xfs/xfs_dfrag.c
View File

@ -79,6 +79,12 @@ xfs_swapext(
goto out_put_target_file;
}
if (IS_SWAPFILE(file->f_path.dentry->d_inode) ||
IS_SWAPFILE(target_file->f_path.dentry->d_inode)) {
error = XFS_ERROR(EINVAL);
goto out_put_target_file;
}
ip = XFS_I(file->f_path.dentry->d_inode);
tip = XFS_I(target_file->f_path.dentry->d_inode);