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Date: Thu, 5 Sep 2013 18:22:49 -0400 From: Milosz Tanski <milosz@...in.com> To: ceph-devel@...r.kernel.org Cc: sage@...tank.com, zheng.z.yan@...el.com, dhowells@...hat.com, jiayisuse@...il.com, linux-cachefs@...hat.com, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH 6/8] ceph: ceph_readpage_to_fscache didn't check if marked Previously ceph_readpage_to_fscache did not call if page was marked as cached before calling fscache_write_page resulting in a BUG inside of fscache. FS-Cache: Assertion failed ------------[ cut here ]------------ kernel BUG at fs/fscache/page.c:874! invalid opcode: 0000 [#1] SMP Call Trace: [<ffffffffa02e6566>] __ceph_readpage_to_fscache+0x66/0x80 [ceph] [<ffffffffa02caf84>] readpage_nounlock+0x124/0x210 [ceph] [<ffffffffa02cb08d>] ceph_readpage+0x1d/0x40 [ceph] [<ffffffff81126db6>] generic_file_aio_read+0x1f6/0x700 [<ffffffffa02c6fcc>] ceph_aio_read+0x5fc/0xab0 [ceph] Signed-off-by: Milosz Tanski <milosz@...in.com> Signed-off-by: Sage Weil <sage@...tank.com> --- fs/ceph/cache.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/ceph/cache.c b/fs/ceph/cache.c index 5c413ec..c737ae9 100644 --- a/fs/ceph/cache.c +++ b/fs/ceph/cache.c @@ -311,6 +311,9 @@ void ceph_readpage_to_fscache(struct inode *inode, struct page *page) struct ceph_inode_info *ci = ceph_inode(inode); int ret; + if (!PageFsCache(page)) + return; + if (!cache_valid(ci)) return; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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