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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-31 14:35:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-31 14:35:28 -0700
commitcc8362b1f6d724e46f515121d442779924b19fec (patch)
tree86fb5c3767e538ec9ded57dd7b3ce5d69dcde691 /fs/ceph
parent2e3ee613480563a6d5c01b57d342e65cc58c06df (diff)
parent1fe5e9932156f6122c3b1ff6ba7541c27c86718c (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph changes from Sage Weil: "Lots of stuff this time around: - lots of cleanup and refactoring in the libceph messenger code, and many hard to hit races and bugs closed as a result. - lots of cleanup and refactoring in the rbd code from Alex Elder, mostly in preparation for the layering functionality that will be coming in 3.7. - some misc rbd cleanups from Josh Durgin that are finally going upstream - support for CRUSH tunables (used by newer clusters to improve the data placement) - some cleanup in our use of d_parent that Al brought up a while back - a random collection of fixes across the tree There is another patch coming that fixes up our ->atomic_open() behavior, but I'm going to hammer on it a bit more before sending it." Fix up conflicts due to commits that were already committed earlier in drivers/block/rbd.c, net/ceph/{messenger.c, osd_client.c} * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (132 commits) rbd: create rbd_refresh_helper() rbd: return obj version in __rbd_refresh_header() rbd: fixes in rbd_header_from_disk() rbd: always pass ops array to rbd_req_sync_op() rbd: pass null version pointer in add_snap() rbd: make rbd_create_rw_ops() return a pointer rbd: have __rbd_add_snap_dev() return a pointer libceph: recheck con state after allocating incoming message libceph: change ceph_con_in_msg_alloc convention to be less weird libceph: avoid dropping con mutex before fault libceph: verify state after retaking con lock after dispatch libceph: revoke mon_client messages on session restart libceph: fix handling of immediate socket connect failure ceph: update MAINTAINERS file libceph: be less chatty about stray replies libceph: clear all flags on con_close libceph: clean up con flags libceph: replace connection state bits with states libceph: drop unnecessary CLOSED check in socket state change callback libceph: close socket directly from ceph_con_close() ...
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/dir.c7
-rw-r--r--fs/ceph/mds_client.c23
-rw-r--r--fs/ceph/snap.c18
-rw-r--r--fs/ceph/super.c1
-rw-r--r--fs/ceph/super.h4
-rw-r--r--fs/ceph/xattr.c1
6 files changed, 23 insertions, 31 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 00894ff9246..f391f1e7541 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -51,8 +51,7 @@ int ceph_init_dentry(struct dentry *dentry)
goto out_unlock;
}
- if (dentry->d_parent == NULL || /* nfs fh_to_dentry */
- ceph_snap(dentry->d_parent->d_inode) == CEPH_NOSNAP)
+ if (ceph_snap(dentry->d_parent->d_inode) == CEPH_NOSNAP)
d_set_d_op(dentry, &ceph_dentry_ops);
else if (ceph_snap(dentry->d_parent->d_inode) == CEPH_SNAPDIR)
d_set_d_op(dentry, &ceph_snapdir_dentry_ops);
@@ -79,7 +78,7 @@ struct inode *ceph_get_dentry_parent_inode(struct dentry *dentry)
return NULL;
spin_lock(&dentry->d_lock);
- if (dentry->d_parent) {
+ if (!IS_ROOT(dentry)) {
inode = dentry->d_parent->d_inode;
ihold(inode);
}
@@ -1154,7 +1153,7 @@ static void ceph_d_prune(struct dentry *dentry)
dout("ceph_d_prune %p\n", dentry);
/* do we have a valid parent? */
- if (!dentry->d_parent || IS_ROOT(dentry))
+ if (IS_ROOT(dentry))
return;
/* if we are not hashed, we don't affect D_COMPLETE */
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 200bc87eceb..a5a735422aa 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -10,6 +10,7 @@
#include "super.h"
#include "mds_client.h"
+#include <linux/ceph/ceph_features.h>
#include <linux/ceph/messenger.h>
#include <linux/ceph/decode.h>
#include <linux/ceph/pagelist.h>
@@ -394,11 +395,7 @@ static struct ceph_mds_session *register_session(struct ceph_mds_client *mdsc,
s->s_seq = 0;
mutex_init(&s->s_mutex);
- ceph_con_init(mdsc->fsc->client->msgr, &s->s_con);
- s->s_con.private = s;
- s->s_con.ops = &mds_con_ops;
- s->s_con.peer_name.type = CEPH_ENTITY_TYPE_MDS;
- s->s_con.peer_name.num = cpu_to_le64(mds);
+ ceph_con_init(&s->s_con, s, &mds_con_ops, &mdsc->fsc->client->msgr);
spin_lock_init(&s->s_gen_ttl_lock);
s->s_cap_gen = 0;
@@ -440,7 +437,8 @@ static struct ceph_mds_session *register_session(struct ceph_mds_client *mdsc,
mdsc->sessions[mds] = s;
atomic_inc(&s->s_ref); /* one ref to sessions[], one to caller */
- ceph_con_open(&s->s_con, ceph_mdsmap_get_addr(mdsc->mdsmap, mds));
+ ceph_con_open(&s->s_con, CEPH_ENTITY_TYPE_MDS, mds,
+ ceph_mdsmap_get_addr(mdsc->mdsmap, mds));
return s;
@@ -1472,11 +1470,6 @@ retry:
else
len += 1 + temp->d_name.len;
temp = temp->d_parent;
- if (temp == NULL) {
- rcu_read_unlock();
- pr_err("build_path corrupt dentry %p\n", dentry);
- return ERR_PTR(-EINVAL);
- }
}
rcu_read_unlock();
if (len)
@@ -1513,12 +1506,6 @@ retry:
if (pos)
path[--pos] = '/';
temp = temp->d_parent;
- if (temp == NULL) {
- rcu_read_unlock();
- pr_err("build_path corrupt dentry\n");
- kfree(path);
- return ERR_PTR(-EINVAL);
- }
}
rcu_read_unlock();
if (pos != 0 || read_seqretry(&rename_lock, seq)) {
@@ -2531,7 +2518,9 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc,
session->s_state = CEPH_MDS_SESSION_RECONNECTING;
session->s_seq = 0;
+ ceph_con_close(&session->s_con);
ceph_con_open(&session->s_con,
+ CEPH_ENTITY_TYPE_MDS, mds,
ceph_mdsmap_get_addr(mdsc->mdsmap, mds));
/* replay unsafe requests */
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index e5206fc7656..cbb2f54a301 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -296,8 +296,7 @@ static int build_snap_context(struct ceph_snap_realm *realm)
struct ceph_snap_realm *parent = realm->parent;
struct ceph_snap_context *snapc;
int err = 0;
- int i;
- int num = realm->num_prior_parent_snaps + realm->num_snaps;
+ u32 num = realm->num_prior_parent_snaps + realm->num_snaps;
/*
* build parent context, if it hasn't been built.
@@ -321,11 +320,11 @@ static int build_snap_context(struct ceph_snap_realm *realm)
realm->cached_context->seq == realm->seq &&
(!parent ||
realm->cached_context->seq >= parent->cached_context->seq)) {
- dout("build_snap_context %llx %p: %p seq %lld (%d snaps)"
+ dout("build_snap_context %llx %p: %p seq %lld (%u snaps)"
" (unchanged)\n",
realm->ino, realm, realm->cached_context,
realm->cached_context->seq,
- realm->cached_context->num_snaps);
+ (unsigned int) realm->cached_context->num_snaps);
return 0;
}
@@ -342,6 +341,8 @@ static int build_snap_context(struct ceph_snap_realm *realm)
num = 0;
snapc->seq = realm->seq;
if (parent) {
+ u32 i;
+
/* include any of parent's snaps occurring _after_ my
parent became my parent */
for (i = 0; i < parent->cached_context->num_snaps; i++)
@@ -361,8 +362,9 @@ static int build_snap_context(struct ceph_snap_realm *realm)
sort(snapc->snaps, num, sizeof(u64), cmpu64_rev, NULL);
snapc->num_snaps = num;
- dout("build_snap_context %llx %p: %p seq %lld (%d snaps)\n",
- realm->ino, realm, snapc, snapc->seq, snapc->num_snaps);
+ dout("build_snap_context %llx %p: %p seq %lld (%u snaps)\n",
+ realm->ino, realm, snapc, snapc->seq,
+ (unsigned int) snapc->num_snaps);
if (realm->cached_context)
ceph_put_snap_context(realm->cached_context);
@@ -402,9 +404,9 @@ static void rebuild_snap_realms(struct ceph_snap_realm *realm)
* helper to allocate and decode an array of snapids. free prior
* instance, if any.
*/
-static int dup_array(u64 **dst, __le64 *src, int num)
+static int dup_array(u64 **dst, __le64 *src, u32 num)
{
- int i;
+ u32 i;
kfree(*dst);
if (num) {
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 7076109f014..b982239f38f 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -18,6 +18,7 @@
#include "super.h"
#include "mds_client.h"
+#include <linux/ceph/ceph_features.h>
#include <linux/ceph/decode.h>
#include <linux/ceph/mon_client.h>
#include <linux/ceph/auth.h>
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index f4d5522cb61..ebc95cc652b 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -612,9 +612,9 @@ struct ceph_snap_realm {
u64 parent_since; /* snapid when our current parent became so */
u64 *prior_parent_snaps; /* snaps inherited from any parents we */
- int num_prior_parent_snaps; /* had prior to parent_since */
+ u32 num_prior_parent_snaps; /* had prior to parent_since */
u64 *snaps; /* snaps specific to this realm */
- int num_snaps;
+ u32 num_snaps;
struct ceph_snap_realm *parent;
struct list_head children; /* list of child realms */
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 785cb3057c9..2c2ae5be990 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -457,6 +457,7 @@ start:
for (i = 0; i < numattr; i++)
kfree(xattrs[i]);
kfree(xattrs);
+ xattrs = NULL;
goto start;
}
err = -EIO;