-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011 Whamcloud, Inc.
- *
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
cnt += radix_tree_gang_lookup_tag(&inode->i_mapping->page_tree,
results, 0, 1,
PAGECACHE_TAG_DIRTY);
- if (cnt == 0 && cfs_atomic_read(&vob->cob_mmap_cnt) > 0)
- cnt = 1;
+ if (cnt == 0 && atomic_read(&vob->cob_mmap_cnt) > 0)
+ cnt = 1;
#endif
return (cnt > 0) ? 1 : 0;
result = 0;
if (!(lli->lli_flags & LLIF_MDS_SIZE_LOCK)) {
CDEBUG(D_DLMTRACE, "Glimpsing inode "DFID"\n", PFID(fid));
- if (lli->lli_smd) {
+ if (lli->lli_has_smd) {
/* NOTE: this looks like DLM lock request, but it may
* not be one. Due to CEF_ASYNC flag (translated
* to LDLM_FL_HAS_INTENT by osc), this is
if (agl)
descr->cld_enq_flags |= CEF_AGL;
cio->cui_glimpse = 1;
- /*
- * CEF_ASYNC is used because glimpse sub-locks cannot
- * deadlock (because they never conflict with other
- * locks) and, hence, can be enqueued out-of-order.
- *
- * CEF_MUST protects glimpse lock from conversion into
- * a lockless mode.
- */
- lock = cl_lock_request(env, io, descr, "glimpse",
- cfs_current());
- cio->cui_glimpse = 0;
+ /*
+ * CEF_ASYNC is used because glimpse sub-locks cannot
+ * deadlock (because they never conflict with other
+ * locks) and, hence, can be enqueued out-of-order.
+ *
+ * CEF_MUST protects glimpse lock from conversion into
+ * a lockless mode.
+ */
+ lock = cl_lock_request(env, io, descr, "glimpse",
+ current);
+ cio->cui_glimpse = 0;
- if (lock == NULL)
- RETURN(0);
+ if (lock == NULL)
+ RETURN(0);
- if (IS_ERR(lock))
- RETURN(PTR_ERR(lock));
+ if (IS_ERR(lock))
+ RETURN(PTR_ERR(lock));
- LASSERT(agl == 0);
- result = cl_wait(env, lock);
- if (result == 0) {
- cl_merge_lvb(inode);
- if (cl_isize_read(inode) > 0 &&
- inode->i_blocks == 0) {
- /*
- * LU-417: Add dirty pages block count
- * lest i_blocks reports 0, some "cp" or
- * "tar" may think it's a completely
- * sparse file and skip it.
- */
- inode->i_blocks = dirty_cnt(inode);
- }
- cl_unuse(env, lock);
- }
- cl_lock_release(env, lock, "glimpse", cfs_current());
- } else {
- CDEBUG(D_DLMTRACE, "No objects for inode\n");
- }
- }
+ LASSERT(agl == 0);
+ result = cl_wait(env, lock);
+ if (result == 0) {
+ cl_merge_lvb(env, inode);
+ if (cl_isize_read(inode) > 0 &&
+ inode->i_blocks == 0) {
+ /*
+ * LU-417: Add dirty pages block count
+ * lest i_blocks reports 0, some "cp" or
+ * "tar" may think it's a completely
+ * sparse file and skip it.
+ */
+ inode->i_blocks = dirty_cnt(inode);
+ }
+ cl_unuse(env, lock);
+ }
+ cl_lock_release(env, lock, "glimpse", current);
+ } else {
+ CDEBUG(D_DLMTRACE, "No objects for inode\n");
+ cl_merge_lvb(env, inode);
+ }
+ }
- RETURN(result);
+ RETURN(result);
}
static int cl_io_get(struct inode *inode, struct lu_env **envout,
result = cl_io_get(inode, &env, &io, &refcheck);
if (result > 0) {
+ again:
+ io->ci_verify_layout = 1;
result = cl_io_init(env, io, CIT_MISC, io->ci_obj);
if (result > 0)
/*
else if (result == 0)
result = cl_glimpse_lock(env, io, inode, io->ci_obj,
agl);
+
+ OBD_FAIL_TIMEOUT(OBD_FAIL_GLIMPSE_DELAY, 2);
cl_io_fini(env, io);
- cl_env_put(env, &refcheck);
- }
- RETURN(result);
+ if (unlikely(io->ci_need_restart))
+ goto again;
+ cl_env_put(env, &refcheck);
+ }
+ RETURN(result);
}
int cl_local_size(struct inode *inode)
ENTRY;
- if (!cl_i2info(inode)->lli_smd)
+ if (!cl_i2info(inode)->lli_has_smd)
RETURN(0);
result = cl_io_get(inode, &env, &io, &refcheck);
result = cl_io_init(env, io, CIT_MISC, clob);
if (result > 0)
result = io->ci_result;
- else if (result == 0) {
- cti = ccc_env_info(env);
- descr = &cti->cti_descr;
+ else if (result == 0) {
+ cti = ccc_env_info(env);
+ descr = &cti->cti_descr;
- *descr = whole_file;
- descr->cld_obj = clob;
- lock = cl_lock_peek(env, io, descr, "localsize", cfs_current());
- if (lock != NULL) {
- cl_merge_lvb(inode);
- cl_unuse(env, lock);
- cl_lock_release(env, lock, "localsize", cfs_current());
- result = 0;
- } else
- result = -ENODATA;
- }
- cl_io_fini(env, io);
- cl_env_put(env, &refcheck);
- RETURN(result);
+ *descr = whole_file;
+ descr->cld_obj = clob;
+ lock = cl_lock_peek(env, io, descr, "localsize", current);
+ if (lock != NULL) {
+ cl_merge_lvb(env, inode);
+ cl_unuse(env, lock);
+ cl_lock_release(env, lock, "localsize", current);
+ result = 0;
+ } else
+ result = -ENODATA;
+ }
+ cl_io_fini(env, io);
+ cl_env_put(env, &refcheck);
+ RETURN(result);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff