Commit 5717144a authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Eric Van Hensbergen
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fs/9p: Add hardlink support to .u extension 



For regular file and directories we put the link
count in th extension field in a tagged string format.

Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatarEric Van Hensbergen <ericvh@gmail.com>
parent c5a7697d

fs/9p/vfs_inode.c

+18 −1
Original line number Diff line number Diff line
@@ -887,6 +887,8 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, 
	struct super_block *sb)

{

	char ext[32];

	char tag_name[14];

	unsigned int i_nlink;

	struct v9fs_session_info *v9ses = sb->s_fs_info;



	inode->i_nlink = 1;
@@ -902,7 +904,22 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, 
		inode->i_uid = stat->n_uid;

		inode->i_gid = stat->n_gid;

	}



	if ((S_ISREG(inode->i_mode)) || (S_ISDIR(inode->i_mode))) {

		if (v9fs_proto_dotu(v9ses) && (stat->extension[0] != '\0')) {

			/*

			 * Hadlink support got added later to

			 * to the .u extension. So there can be

			 * server out there that doesn't support

			 * this even with .u extension. So check

			 * for non NULL stat->extension

			 */

			strncpy(ext, stat->extension, sizeof(ext));

			/* HARDLINKCOUNT %u */

			sscanf(ext, "%13s %u", tag_name, &i_nlink);

			if (!strncmp(tag_name, "HARDLINKCOUNT", 13))

				inode->i_nlink = i_nlink;

		}

	}

	inode->i_mode = p9mode2unixmode(v9ses, stat->mode);

	if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode))) {

		char type = 0;