redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

ceph: fix truncation when not holding caps

Browse source 
A truncation should occur when either we have the
specified caps for the file, or (in cases where we are
not the only ones referencing the file) when it is mapped
or when it is opened. The latter two cases were not
handled.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Yehuda Sadeh 2010-02-09 11:08:40 -08:00 committed by Sage Weil
parent 4af6b2257e
commit 3d497d858a
1 changed files with 10 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
fs/ceph/inode.c
View file

@ -416,9 +416,17 @@ int ceph_fill_file_size(struct inode *inode, int issued,
dout("truncate_seq %u -> %u\n",
ci->i_truncate_seq, truncate_seq);
ci->i_truncate_seq = truncate_seq;
if (issued & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_RD|
/*
* If we hold relevant caps, or in the case where we're
* not the only client referencing this file and we
* don't hold those caps, then we need to check whether
* the file is either opened or mmaped
*/
if ((issued & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_RD|
CEPH_CAP_FILE_WR|CEPH_CAP_FILE_BUFFER|
CEPH_CAP_FILE_EXCL)) {
CEPH_CAP_FILE_EXCL)) ||
mapping_mapped(inode->i_mapping) ||
__ceph_caps_file_wanted(ci)) {
ci->i_truncate_pending++;
queue_trunc = 1;
}