Commit 5717144a authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Eric Van Hensbergen

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
...@@ -887,6 +887,8 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, ...@@ -887,6 +887,8 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
struct super_block *sb) struct super_block *sb)
{ {
char ext[32]; char ext[32];
char tag_name[14];
unsigned int i_nlink;
struct v9fs_session_info *v9ses = sb->s_fs_info; struct v9fs_session_info *v9ses = sb->s_fs_info;
inode->i_nlink = 1; inode->i_nlink = 1;
...@@ -902,7 +904,22 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, ...@@ -902,7 +904,22 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
inode->i_uid = stat->n_uid; inode->i_uid = stat->n_uid;
inode->i_gid = stat->n_gid; 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); inode->i_mode = p9mode2unixmode(v9ses, stat->mode);
if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode))) { if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode))) {
char type = 0; char type = 0;
......
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