diff options
Diffstat (limited to 'fs/xfs/xfs_ioctl.c')
| -rw-r--r-- | fs/xfs/xfs_ioctl.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index c1df3c623de2..c1c3ef88a260 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -42,6 +42,7 @@ #include "xfs_inode_item.h" #include "xfs_export.h" #include "xfs_trace.h" +#include "xfs_icache.h" #include <linux/capability.h> #include <linux/dcache.h> @@ -1602,6 +1603,26 @@ xfs_file_ioctl( error = xfs_errortag_clearall(mp, 1); return -error; + case XFS_IOC_FREE_EOFBLOCKS: { + struct xfs_eofblocks eofb; + + if (copy_from_user(&eofb, arg, sizeof(eofb))) + return -XFS_ERROR(EFAULT); + + if (eofb.eof_version != XFS_EOFBLOCKS_VERSION) + return -XFS_ERROR(EINVAL); + + if (eofb.eof_flags & ~XFS_EOF_FLAGS_VALID) + return -XFS_ERROR(EINVAL); + + if (memchr_inv(&eofb.pad32, 0, sizeof(eofb.pad32)) || + memchr_inv(eofb.pad64, 0, sizeof(eofb.pad64))) + return -XFS_ERROR(EINVAL); + + error = xfs_icache_free_eofblocks(mp, &eofb); + return -error; + } + default: return -ENOTTY; } |