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Diffstat (limited to 'fs/ceph/mds_client.c')
-rw-r--r--fs/ceph/mds_client.c129
1 files changed, 75 insertions, 54 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index bd13a3267ae0..163fc74bf221 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1232,13 +1232,13 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap,
dout("removing cap %p, ci is %p, inode is %p\n",
cap, ci, &ci->vfs_inode);
spin_lock(&ci->i_ceph_lock);
+ if (cap->mds_wanted | cap->issued)
+ ci->i_ceph_flags |= CEPH_I_CAP_DROPPED;
__ceph_remove_cap(cap, false);
if (!ci->i_auth_cap) {
struct ceph_cap_flush *cf;
struct ceph_mds_client *mdsc = fsc->mdsc;
- ci->i_ceph_flags |= CEPH_I_CAP_DROPPED;
-
if (ci->i_wrbuffer_ref > 0 &&
READ_ONCE(fsc->mount_state) == CEPH_MOUNT_SHUTDOWN)
invalidate = true;
@@ -1355,6 +1355,12 @@ static void remove_session_caps(struct ceph_mds_session *session)
dispose_cap_releases(session->s_mdsc, &dispose);
}
+enum {
+ RECONNECT,
+ RENEWCAPS,
+ FORCE_RO,
+};
+
/*
* wake up any threads waiting on this session's caps. if the cap is
* old (didn't get renewed on the client reconnect), remove it now.
@@ -1365,23 +1371,34 @@ static int wake_up_session_cb(struct inode *inode, struct ceph_cap *cap,
void *arg)
{
struct ceph_inode_info *ci = ceph_inode(inode);
+ unsigned long ev = (unsigned long)arg;
- if (arg) {
+ if (ev == RECONNECT) {
spin_lock(&ci->i_ceph_lock);
ci->i_wanted_max_size = 0;
ci->i_requested_max_size = 0;
spin_unlock(&ci->i_ceph_lock);
+ } else if (ev == RENEWCAPS) {
+ if (cap->cap_gen < cap->session->s_cap_gen) {
+ /* mds did not re-issue stale cap */
+ spin_lock(&ci->i_ceph_lock);
+ cap->issued = cap->implemented = CEPH_CAP_PIN;
+ /* make sure mds knows what we want */
+ if (__ceph_caps_file_wanted(ci) & ~cap->mds_wanted)
+ ci->i_ceph_flags |= CEPH_I_CAP_DROPPED;
+ spin_unlock(&ci->i_ceph_lock);
+ }
+ } else if (ev == FORCE_RO) {
}
wake_up_all(&ci->i_cap_wq);
return 0;
}
-static void wake_up_session_caps(struct ceph_mds_session *session,
- int reconnect)
+static void wake_up_session_caps(struct ceph_mds_session *session, int ev)
{
dout("wake_up_session_caps %p mds%d\n", session, session->s_mds);
iterate_session_caps(session, wake_up_session_cb,
- (void *)(unsigned long)reconnect);
+ (void *)(unsigned long)ev);
}
/*
@@ -1466,7 +1483,7 @@ static void renewed_caps(struct ceph_mds_client *mdsc,
spin_unlock(&session->s_cap_lock);
if (wake)
- wake_up_session_caps(session, 0);
+ wake_up_session_caps(session, RENEWCAPS);
}
/*
@@ -2847,7 +2864,7 @@ static void handle_session(struct ceph_mds_session *session,
spin_lock(&session->s_cap_lock);
session->s_readonly = true;
spin_unlock(&session->s_cap_lock);
- wake_up_session_caps(session, 0);
+ wake_up_session_caps(session, FORCE_RO);
break;
case CEPH_SESSION_REJECT:
@@ -2943,11 +2960,8 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
struct ceph_inode_info *ci = cap->ci;
struct ceph_reconnect_state *recon_state = arg;
struct ceph_pagelist *pagelist = recon_state->pagelist;
- char *path;
- int pathlen, err;
- u64 pathbase;
+ int err;
u64 snap_follows;
- struct dentry *dentry;
dout(" adding %p ino %llx.%llx cap %p %lld %s\n",
inode, ceph_vinop(inode), cap, cap->cap_id,
@@ -2956,19 +2970,6 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
if (err)
return err;
- dentry = d_find_alias(inode);
- if (dentry) {
- path = ceph_mdsc_build_path(dentry, &pathlen, &pathbase, 0);
- if (IS_ERR(path)) {
- err = PTR_ERR(path);
- goto out_dput;
- }
- } else {
- path = NULL;
- pathlen = 0;
- pathbase = 0;
- }
-
spin_lock(&ci->i_ceph_lock);
cap->seq = 0; /* reset cap seq */
cap->issue_seq = 0; /* and issue_seq */
@@ -2980,7 +2981,7 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
rec.v2.wanted = cpu_to_le32(__ceph_caps_wanted(ci));
rec.v2.issued = cpu_to_le32(cap->issued);
rec.v2.snaprealm = cpu_to_le64(ci->i_snap_realm->ino);
- rec.v2.pathbase = cpu_to_le64(pathbase);
+ rec.v2.pathbase = 0;
rec.v2.flock_len = (__force __le32)
((ci->i_ceph_flags & CEPH_I_ERROR_FILELOCK) ? 0 : 1);
} else {
@@ -2991,7 +2992,7 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
ceph_encode_timespec64(&rec.v1.mtime, &inode->i_mtime);
ceph_encode_timespec64(&rec.v1.atime, &inode->i_atime);
rec.v1.snaprealm = cpu_to_le64(ci->i_snap_realm->ino);
- rec.v1.pathbase = cpu_to_le64(pathbase);
+ rec.v1.pathbase = 0;
}
if (list_empty(&ci->i_cap_snaps)) {
@@ -3023,7 +3024,7 @@ encode_again:
GFP_NOFS);
if (!flocks) {
err = -ENOMEM;
- goto out_free;
+ goto out_err;
}
err = ceph_encode_locks_to_buffer(inode, flocks,
num_fcntl_locks,
@@ -3033,7 +3034,7 @@ encode_again:
flocks = NULL;
if (err == -ENOSPC)
goto encode_again;
- goto out_free;
+ goto out_err;
}
} else {
kfree(flocks);
@@ -3053,44 +3054,64 @@ encode_again:
sizeof(struct ceph_filelock);
rec.v2.flock_len = cpu_to_le32(struct_len);
- struct_len += sizeof(rec.v2);
- struct_len += sizeof(u32) + pathlen;
+ struct_len += sizeof(u32) + sizeof(rec.v2);
if (struct_v >= 2)
struct_len += sizeof(u64); /* snap_follows */
total_len += struct_len;
err = ceph_pagelist_reserve(pagelist, total_len);
+ if (err) {
+ kfree(flocks);
+ goto out_err;
+ }
- if (!err) {
- if (recon_state->msg_version >= 3) {
- ceph_pagelist_encode_8(pagelist, struct_v);
- ceph_pagelist_encode_8(pagelist, 1);
- ceph_pagelist_encode_32(pagelist, struct_len);
- }
- ceph_pagelist_encode_string(pagelist, path, pathlen);
- ceph_pagelist_append(pagelist, &rec, sizeof(rec.v2));
- ceph_locks_to_pagelist(flocks, pagelist,
- num_fcntl_locks,
- num_flock_locks);
- if (struct_v >= 2)
- ceph_pagelist_encode_64(pagelist, snap_follows);
+ if (recon_state->msg_version >= 3) {
+ ceph_pagelist_encode_8(pagelist, struct_v);
+ ceph_pagelist_encode_8(pagelist, 1);
+ ceph_pagelist_encode_32(pagelist, struct_len);
}
+ ceph_pagelist_encode_string(pagelist, NULL, 0);
+ ceph_pagelist_append(pagelist, &rec, sizeof(rec.v2));
+ ceph_locks_to_pagelist(flocks, pagelist,
+ num_fcntl_locks, num_flock_locks);
+ if (struct_v >= 2)
+ ceph_pagelist_encode_64(pagelist, snap_follows);
+
kfree(flocks);
} else {
- size_t size = sizeof(u32) + pathlen + sizeof(rec.v1);
- err = ceph_pagelist_reserve(pagelist, size);
- if (!err) {
- ceph_pagelist_encode_string(pagelist, path, pathlen);
- ceph_pagelist_append(pagelist, &rec, sizeof(rec.v1));
+ u64 pathbase = 0;
+ int pathlen = 0;
+ char *path = NULL;
+ struct dentry *dentry;
+
+ dentry = d_find_alias(inode);
+ if (dentry) {
+ path = ceph_mdsc_build_path(dentry,
+ &pathlen, &pathbase, 0);
+ dput(dentry);
+ if (IS_ERR(path)) {
+ err = PTR_ERR(path);
+ goto out_err;
+ }
+ rec.v1.pathbase = cpu_to_le64(pathbase);
}
+
+ err = ceph_pagelist_reserve(pagelist,
+ pathlen + sizeof(u32) + sizeof(rec.v1));
+ if (err) {
+ kfree(path);
+ goto out_err;
+ }
+
+ ceph_pagelist_encode_string(pagelist, path, pathlen);
+ ceph_pagelist_append(pagelist, &rec, sizeof(rec.v1));
+
+ kfree(path);
}
recon_state->nr_caps++;
-out_free:
- kfree(path);
-out_dput:
- dput(dentry);
+out_err:
return err;
}
@@ -3339,7 +3360,7 @@ static void check_new_map(struct ceph_mds_client *mdsc,
pr_info("mds%d recovery completed\n", s->s_mds);
kick_requests(mdsc, i);
ceph_kick_flushing_caps(mdsc, s);
- wake_up_session_caps(s, 1);
+ wake_up_session_caps(s, RECONNECT);
}
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-19 10:18:59 +0300