From: Daniel Drake The current logic assumes that a /proc//task directory should have a hardlink count of 3, probably counting ".", "..", and a directory for a single child task. It's fairly obvious that this doesn't work out correctly when a PID has more than one child task, which is quite often the case. Signed-off-by: Daniel Drake Signed-off-by: Andrew Morton --- fs/proc/base.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-) diff -puN fs/proc/base.c~procfs-fix-hardlink-counts-for-proc-pid-task fs/proc/base.c --- 25/fs/proc/base.c~procfs-fix-hardlink-counts-for-proc-pid-task 2005-04-29 18:54:52.285195440 -0700 +++ 25-akpm/fs/proc/base.c 2005-04-29 18:54:52.291194528 -0700 @@ -1476,6 +1476,8 @@ static struct file_operations proc_tgid_ static struct inode_operations proc_tgid_attr_inode_operations; #endif +static int get_tid_list(int index, unsigned int *tids, struct inode *dir); + /* SMP-safe */ static struct dentry *proc_pident_lookup(struct inode *dir, struct dentry *dentry, @@ -1515,7 +1517,7 @@ static struct dentry *proc_pident_lookup */ switch(p->type) { case PROC_TGID_TASK: - inode->i_nlink = 3; + inode->i_nlink = 2 + get_tid_list(2, NULL, dir); inode->i_op = &proc_task_inode_operations; inode->i_fop = &proc_task_operations; break; @@ -2004,7 +2006,8 @@ static int get_tid_list(int index, unsig if (--index >= 0) continue; - tids[nr_tids] = tid; + if (tids != NULL) + tids[nr_tids] = tid; nr_tids++; if (nr_tids >= PROC_MAXPIDS) break; @@ -2104,6 +2107,7 @@ static int proc_task_readdir(struct file } nr_tids = get_tid_list(pos, tid_array, inode); + inode->i_nlink = pos + nr_tids; for (i = 0; i < nr_tids; i++) { unsigned long j = PROC_NUMBUF; _