diff options
| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-07-25 10:42:44 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-07-25 10:42:44 +1000 |
| commit | 11d6308c773253cc202b09488767e4c2e86c7e1b (patch) | |
| tree | 428fa33f7eabcee7e85882342ba0352731e3e7dc /fs/ceph | |
| parent | 543d1b776a23a0e83c7cae5df93d50a8b92182f0 (diff) | |
| parent | 71b43258fca50da88f9d800c7f05ccc742dc7937 (diff) | |
Merge remote-tracking branch 'ceph/master'
Diffstat (limited to 'fs/ceph')
| -rw-r--r-- | fs/ceph/dir.c | 2 | ||||
| -rw-r--r-- | fs/ceph/inode.c | 9 | ||||
| -rw-r--r-- | fs/ceph/ioctl.c | 4 |
3 files changed, 13 insertions, 2 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index a40ceda47a32..868b61d56cac 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -793,6 +793,8 @@ static int ceph_link(struct dentry *old_dentry, struct inode *dir, req->r_locked_dir = dir; req->r_dentry_drop = CEPH_CAP_FILE_SHARED; req->r_dentry_unless = CEPH_CAP_FILE_EXCL; + /* release LINK_SHARED on source inode (mds will lock it) */ + req->r_old_inode_drop = CEPH_CAP_LINK_SHARED; err = ceph_mdsc_do_request(mdsc, dir, req); if (err) { d_drop(dentry); diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index f3a2abf28a77..2f5edff2f980 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -1465,7 +1465,14 @@ static void ceph_vmtruncate_work(struct work_struct *work) struct inode *inode = &ci->vfs_inode; dout("vmtruncate_work %p\n", inode); - mutex_lock(&inode->i_mutex); + if (!mutex_trylock(&inode->i_mutex)) { + /* + * the i_mutex can be hold by a writer who is waiting for + * caps. wake up waiters, they will do pending vmtruncate. + */ + wake_up_all(&ci->i_cap_wq); + mutex_lock(&inode->i_mutex); + } __ceph_do_pending_vmtruncate(inode); mutex_unlock(&inode->i_mutex); iput(inode); diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c index e0b4ef31d3c8..a5ce62eb7806 100644 --- a/fs/ceph/ioctl.c +++ b/fs/ceph/ioctl.c @@ -196,8 +196,10 @@ static long ceph_ioctl_get_dataloc(struct file *file, void __user *arg) r = ceph_calc_file_object_mapping(&ci->i_layout, dl.file_offset, len, &dl.object_no, &dl.object_offset, &olen); - if (r < 0) + if (r < 0) { + up_read(&osdc->map_sem); return -EIO; + } dl.file_offset -= dl.object_offset; dl.object_size = ceph_file_layout_object_size(ci->i_layout); dl.block_size = ceph_file_layout_su(ci->i_layout); |