| From | Greg Kroah-Hartman <> | Subject | [ 166/171] ceph: Fix __ceph_do_pending_vmtruncate | Date | Tue, 15 Jan 2013 14:45:31 -0800 |
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3.4-stable review patch. If anyone has any objections, please let me know.
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From: "Yan, Zheng" <zheng.z.yan@intel.com>
we should set i_truncate_pending to 0 after page cache is truncated to i_truncate_size
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: Sage Weil <sage@inktank.com> (cherry picked from commit a85f50b6ef93fbbb2ae932ce9b2376509d172796) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- fs/ceph/inode.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-)
--- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -1466,7 +1466,7 @@ void __ceph_do_pending_vmtruncate(struct { struct ceph_inode_info *ci = ceph_inode(inode); u64 to; - int wrbuffer_refs, wake = 0; + int wrbuffer_refs, finish = 0; retry: spin_lock(&ci->i_ceph_lock); @@ -1498,15 +1498,18 @@ retry: truncate_inode_pages(inode->i_mapping, to); spin_lock(&ci->i_ceph_lock); - ci->i_truncate_pending--; - if (ci->i_truncate_pending == 0) - wake = 1; + if (to == ci->i_truncate_size) { + ci->i_truncate_pending = 0; + finish = 1; + } spin_unlock(&ci->i_ceph_lock); + if (!finish) + goto retry; if (wrbuffer_refs == 0) ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL); - if (wake) - wake_up_all(&ci->i_cap_wq); + + wake_up_all(&ci->i_cap_wq); }
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