| Message ID | 1481727270-12666-4-git-send-email-jlayton@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
> On 14 Dec 2016, at 22:54, Jeff Layton <jlayton@redhat.com> wrote: > > In the event that we have a parent inode reference in the request, we > can use that instead of mucking about in the dcache. Pass any parent > inode info we have down to build_dentry_path so it can make use of it. > > Link: http://tracker.ceph.com/issues/18148 > Signed-off-by: Jeff Layton <jlayton@redhat.com> > --- > fs/ceph/mds_client.c | 15 ++++++++------- > 1 file changed, 8 insertions(+), 7 deletions(-) > > diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c > index 2cd9e6b04e29..26cc17ee6d65 100644 > --- a/fs/ceph/mds_client.c > +++ b/fs/ceph/mds_client.c > @@ -1797,15 +1797,15 @@ char *ceph_mdsc_build_path(struct dentry *dentry, int *plen, u64 *base, > return path; > } > > -static int build_dentry_path(struct dentry *dentry, > +static int build_dentry_path(struct dentry *dentry, struct inode *dir, > const char **ppath, int *ppathlen, u64 *pino, > int *pfreepath) > { > char *path; > - struct inode *dir; > > rcu_read_lock(); > - dir = d_inode_rcu(dentry->d_parent); > + if (!dir) > + dir = d_inode_rcu(dentry->d_parent); > if (dir && ceph_snap(dir) == CEPH_NOSNAP) { > *pino = ceph_ino(dir); > rcu_read_unlock(); > @@ -1849,8 +1849,8 @@ static int build_inode_path(struct inode *inode, > * an explicit ino+path. > */ > static int set_request_path_attr(struct inode *rinode, struct dentry *rdentry, > - const char *rpath, u64 rino, > - const char **ppath, int *pathlen, > + struct inode *rdirino, const char *rpath, ‘rdirino' looks strange (it’s not inode number), how about changing it to rdiri? Regards Yan, Zheng > + u64 rino, const char **ppath, int *pathlen, > u64 *ino, int *freepath) > { > int r = 0; > @@ -1860,7 +1860,7 @@ static int set_request_path_attr(struct inode *rinode, struct dentry *rdentry, > dout(" inode %p %llx.%llx\n", rinode, ceph_ino(rinode), > ceph_snap(rinode)); > } else if (rdentry) { > - r = build_dentry_path(rdentry, ppath, pathlen, ino, freepath); > + r = build_dentry_path(rdentry, rdirino, ppath, pathlen, ino, freepath); > dout(" dentry %p %llx/%.*s\n", rdentry, *ino, *pathlen, > *ppath); > } else if (rpath || rino) { > @@ -1893,7 +1893,7 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc, > int ret; > > ret = set_request_path_attr(req->r_inode, req->r_dentry, > - req->r_path1, req->r_ino1.ino, > + req->r_locked_dir, req->r_path1, req->r_ino1.ino, > &path1, &pathlen1, &ino1, &freepath1); > if (ret < 0) { > msg = ERR_PTR(ret); > @@ -1901,6 +1901,7 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc, > } > > ret = set_request_path_attr(NULL, req->r_old_dentry, > + req->r_old_dentry_dir, > req->r_path2, req->r_ino2.ino, > &path2, &pathlen2, &ino2, &freepath2); > if (ret < 0) { > -- > 2.7.4 > -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 2cd9e6b04e29..26cc17ee6d65 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -1797,15 +1797,15 @@ char *ceph_mdsc_build_path(struct dentry *dentry, int *plen, u64 *base, return path; } -static int build_dentry_path(struct dentry *dentry, +static int build_dentry_path(struct dentry *dentry, struct inode *dir, const char **ppath, int *ppathlen, u64 *pino, int *pfreepath) { char *path; - struct inode *dir; rcu_read_lock(); - dir = d_inode_rcu(dentry->d_parent); + if (!dir) + dir = d_inode_rcu(dentry->d_parent); if (dir && ceph_snap(dir) == CEPH_NOSNAP) { *pino = ceph_ino(dir); rcu_read_unlock(); @@ -1849,8 +1849,8 @@ static int build_inode_path(struct inode *inode, * an explicit ino+path. */ static int set_request_path_attr(struct inode *rinode, struct dentry *rdentry, - const char *rpath, u64 rino, - const char **ppath, int *pathlen, + struct inode *rdirino, const char *rpath, + u64 rino, const char **ppath, int *pathlen, u64 *ino, int *freepath) { int r = 0; @@ -1860,7 +1860,7 @@ static int set_request_path_attr(struct inode *rinode, struct dentry *rdentry, dout(" inode %p %llx.%llx\n", rinode, ceph_ino(rinode), ceph_snap(rinode)); } else if (rdentry) { - r = build_dentry_path(rdentry, ppath, pathlen, ino, freepath); + r = build_dentry_path(rdentry, rdirino, ppath, pathlen, ino, freepath); dout(" dentry %p %llx/%.*s\n", rdentry, *ino, *pathlen, *ppath); } else if (rpath || rino) { @@ -1893,7 +1893,7 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc, int ret; ret = set_request_path_attr(req->r_inode, req->r_dentry, - req->r_path1, req->r_ino1.ino, + req->r_locked_dir, req->r_path1, req->r_ino1.ino, &path1, &pathlen1, &ino1, &freepath1); if (ret < 0) { msg = ERR_PTR(ret); @@ -1901,6 +1901,7 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc, } ret = set_request_path_attr(NULL, req->r_old_dentry, + req->r_old_dentry_dir, req->r_path2, req->r_ino2.ino, &path2, &pathlen2, &ino2, &freepath2); if (ret < 0) {
In the event that we have a parent inode reference in the request, we can use that instead of mucking about in the dcache. Pass any parent inode info we have down to build_dentry_path so it can make use of it. Link: http://tracker.ceph.com/issues/18148 Signed-off-by: Jeff Layton <jlayton@redhat.com> --- fs/ceph/mds_client.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-)