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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: do not use i_wrbuffer_ref as refcount for Fb cap
  ceph: fix list_add in ceph_put_snap_realm
  ceph: print debug message before put mds session
This commit is contained in:
Linus Torvalds 2011-05-11 19:13:34 -07:00
commit 3568bd9720
5 changed files with 12 additions and 11 deletions
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16
fs/ceph/caps.c
View file

@ -819,7 +819,7 @@ int __ceph_caps_used(struct ceph_inode_info *ci)
used |= CEPH_CAP_FILE_CACHE;
if (ci->i_wr_ref)
used |= CEPH_CAP_FILE_WR;
if (ci->i_wrbuffer_ref)
if (ci->i_wb_ref || ci->i_wrbuffer_ref)
used |= CEPH_CAP_FILE_BUFFER;
return used;
}
@ -1990,11 +1990,11 @@ static void __take_cap_refs(struct ceph_inode_info *ci, int got)
if (got & CEPH_CAP_FILE_WR)
ci->i_wr_ref++;
if (got & CEPH_CAP_FILE_BUFFER) {
if (ci->i_wrbuffer_ref == 0)
if (ci->i_wb_ref == 0)
ihold(&ci->vfs_inode);
ci->i_wrbuffer_ref++;
dout("__take_cap_refs %p wrbuffer %d -> %d (?)\n",
&ci->vfs_inode, ci->i_wrbuffer_ref-1, ci->i_wrbuffer_ref);
ci->i_wb_ref++;
dout("__take_cap_refs %p wb %d -> %d (?)\n",
&ci->vfs_inode, ci->i_wb_ref-1, ci->i_wb_ref);
}
}
@ -2169,12 +2169,12 @@ void ceph_put_cap_refs(struct ceph_inode_info *ci, int had)
if (--ci->i_rdcache_ref == 0)
last++;
if (had & CEPH_CAP_FILE_BUFFER) {
if (--ci->i_wrbuffer_ref == 0) {
if (--ci->i_wb_ref == 0) {
last++;
put++;
}
dout("put_cap_refs %p wrbuffer %d -> %d (?)\n",
inode, ci->i_wrbuffer_ref+1, ci->i_wrbuffer_ref);
dout("put_cap_refs %p wb %d -> %d (?)\n",
inode, ci->i_wb_ref+1, ci->i_wb_ref);
}
if (had & CEPH_CAP_FILE_WR)
if (--ci->i_wr_ref == 0) {

1
fs/ceph/inode.c
View file

@ -355,6 +355,7 @@ struct inode *ceph_alloc_inode(struct super_block *sb)
ci->i_rd_ref = 0;
ci->i_rdcache_ref = 0;
ci->i_wr_ref = 0;
ci->i_wb_ref = 0;
ci->i_wrbuffer_ref = 0;
ci->i_wrbuffer_ref_head = 0;
ci->i_shared_gen = 0;

2
fs/ceph/mds_client.c
View file

@ -3304,8 +3304,8 @@ static void con_put(struct ceph_connection *con)
{
struct ceph_mds_session *s = con->private;
dout("mdsc con_put %p (%d)\n", s, atomic_read(&s->s_ref) - 1);
ceph_put_mds_session(s);
dout("mdsc con_put %p (%d)\n", s, atomic_read(&s->s_ref));
}
/*

2
fs/ceph/snap.c
View file

@ -206,7 +206,7 @@ void ceph_put_snap_realm(struct ceph_mds_client *mdsc,
up_write(&mdsc->snap_rwsem);
} else {
spin_lock(&mdsc->snap_empty_lock);
list_add(&mdsc->snap_empty, &realm->empty_item);
list_add(&realm->empty_item, &mdsc->snap_empty);
spin_unlock(&mdsc->snap_empty_lock);
}
}

2
fs/ceph/super.h
View file

@ -293,7 +293,7 @@ struct ceph_inode_info {
/* held references to caps */
int i_pin_ref;
int i_rd_ref, i_rdcache_ref, i_wr_ref;
int i_rd_ref, i_rdcache_ref, i_wr_ref, i_wb_ref;
int i_wrbuffer_ref, i_wrbuffer_ref_head;
u32 i_shared_gen; /* increment each time we get FILE_SHARED */
u32 i_rdcache_gen; /* incremented each time we get FILE_CACHE. */