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fuse-overlayfs: create hard link in the workdir first

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Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2018-07-12 15:49:10 +02:00
parent c851b9bfda
commit 382b0d8e0c
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GPG Key ID: E4730F97F60286ED
1 changed files with 11 additions and 1 deletions
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12
main.c
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@ -2191,6 +2191,7 @@ ovl_link (fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent, const char *newn
char path[PATH_MAX + 10];
int ret;
struct fuse_entry_param e;
char wd_tmp_file_name[32];
if (ovl_debug (req))
fprintf (stderr, "ovl_link(ino=%" PRIu64 "s, newparent=%" PRIu64 "s, newname=%s)\n", ino, newparent, newname);
@ -2236,8 +2237,17 @@ ovl_link (fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent, const char *newn
return;
}
sprintf (wd_tmp_file_name, "%lu", get_next_wd_counter ());
sprintf (path, "%s/%s", newparentnode->path, newname);
if (linkat (node_dirfd (newparentnode), node->path, node_dirfd (newparentnode), path, 0) < 0)
if (linkat (node_dirfd (newparentnode), node->path, lo->workdir_fd, wd_tmp_file_name, 0) < 0)
{
fuse_reply_err (req, errno);
return;
}
if (renameat (lo->workdir_fd, wd_tmp_file_name, node_dirfd (newparentnode), path) < 0)
{
fuse_reply_err (req, errno);
return;