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proc_pid_readdir(): stop wanking with proc_fill_cache() for /proc/self 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-06-15 10:45:10 +04:00
parent 147ce69974
commit db96316487
1 changed files with 3 additions and 3 deletions
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6
fs/proc/base.c
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@ -2882,21 +2882,21 @@ retry:
int proc_pid_readdir(struct file *file, struct dir_context *ctx) int proc_pid_readdir(struct file *file, struct dir_context *ctx)
{ {
struct tgid_iter iter; struct tgid_iter iter;
struct pid_namespace *ns; struct pid_namespace *ns = file->f_dentry->d_sb->s_fs_info;
loff_t pos = ctx->pos; loff_t pos = ctx->pos;
if (pos >= PID_MAX_LIMIT + TGID_OFFSET) if (pos >= PID_MAX_LIMIT + TGID_OFFSET)
return 0; return 0;
if (pos == TGID_OFFSET - 1) { if (pos == TGID_OFFSET - 1) {
if (!proc_fill_cache(file, ctx, "self", 4, NULL, NULL, NULL)) struct inode *inode = ns->proc_self->d_inode;
if (!dir_emit(ctx, "self", 4, inode->i_ino, DT_LNK))
return 0; return 0;
iter.tgid = 0; iter.tgid = 0;
} else { } else {
iter.tgid = pos - TGID_OFFSET; iter.tgid = pos - TGID_OFFSET;
} }
iter.task = NULL; iter.task = NULL;
ns = file->f_dentry->d_sb->s_fs_info;
for (iter = next_tgid(ns, iter); for (iter = next_tgid(ns, iter);
iter.task; iter.task;
iter.tgid += 1, iter = next_tgid(ns, iter)) { iter.tgid += 1, iter = next_tgid(ns, iter)) {