From 6eb0b8df9f74f33d1a69100117630a7a87a9cc96 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Fri, 7 Jul 2017 08:37:26 -0700 Subject: xfs: rename MAXPATHLEN to XFS_SYMLINK_MAXLEN XFS has a maximum symlink target length of 1024 bytes; this is a holdover from the Irix days. Unfortunately, the constant establishing this is 'MAXPATHLEN' and is /not/ the same as the Linux MAXPATHLEN, which is 4096. The kernel enforces its 1024 byte MAXPATHLEN on symlink targets, but xfsprogs picks up the (Linux) system 4096 byte MAXPATHLEN, which means that xfs_repair doesn't complain about oversized symlinks. Since this is an on-disk format constraint, put the define in the XFS namespace and move everything over to use the new name. Signed-off-by: Darrick J. Wong Reviewed-by: Brian Foster --- fs/xfs/libxfs/xfs_format.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/xfs/libxfs/xfs_format.h') diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index e204a942e5bf..23229f0c5b15 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -1211,6 +1211,7 @@ struct xfs_dsymlink_hdr { #define XFS_SYMLINK_CRC_OFF offsetof(struct xfs_dsymlink_hdr, sl_crc) +#define XFS_SYMLINK_MAXLEN 1024 /* * The maximum pathlen is 1024 bytes. Since the minimum file system * blocksize is 512 bytes, we can get a max of 3 extents back from -- cgit v1.2.3