* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_LOV
-#ifdef __KERNEL__
#include <libcfs/libcfs.h>
-#else
-#include <liblustre.h>
-#endif
#include <obd_class.h>
-#include <obd_lov.h>
-
#include "lov_internal.h"
/** Merge the lock value block(&lvb) attributes and KMS from each of the
obd_time current_ctime = lvb->lvb_ctime;
int i;
int rc = 0;
- struct lu_fid fid;
- LASSERT_SPIN_LOCKED(&lsm->lsm_lock);
-#ifdef __KERNEL__
- LASSERT(lsm->lsm_lock_owner == cfs_curproc_pid());
-#endif
+ assert_spin_locked(&lsm->lsm_lock);
+ LASSERT(lsm->lsm_lock_owner == current_pid());
- ostid_fid_unpack(&lsm->lsm_oi, &fid);
- CDEBUG(D_INODE, "MDT FID "DFID" initial value: s="LPU64" m="LPU64
- " a="LPU64" c="LPU64" b="LPU64"\n", PFID(&fid), lvb->lvb_size,
- lvb->lvb_mtime, lvb->lvb_atime, lvb->lvb_ctime, lvb->lvb_blocks);
+ CDEBUG(D_INODE, "MDT ID "DOSTID" initial value: s="LPU64" m="LPU64
+ " a="LPU64" c="LPU64" b="LPU64"\n", POSTID(&lsm->lsm_oi),
+ lvb->lvb_size, lvb->lvb_mtime, lvb->lvb_atime, lvb->lvb_ctime,
+ lvb->lvb_blocks);
for (i = 0; i < lsm->lsm_stripe_count; i++) {
struct lov_oinfo *loi = lsm->lsm_oinfo[i];
obd_size lov_size, tmpsize;
if (loi->loi_lvb.lvb_ctime > current_ctime)
current_ctime = loi->loi_lvb.lvb_ctime;
- CDEBUG(D_INODE, "MDT FID "DFID" on OST[%u]: s="LPU64" m="LPU64
- " a="LPU64" c="LPU64" b="LPU64"\n", PFID(&fid),
+ CDEBUG(D_INODE, "MDT ID "DOSTID" on OST[%u]: s="LPU64" m="LPU64
+ " a="LPU64" c="LPU64" b="LPU64"\n", POSTID(&lsm->lsm_oi),
loi->loi_ost_idx, loi->loi_lvb.lvb_size,
loi->loi_lvb.lvb_mtime, loi->loi_lvb.lvb_atime,
loi->loi_lvb.lvb_ctime, loi->loi_lvb.lvb_blocks);
RETURN(rc);
}
-/** Merge the lock value block(&lvb) attributes from each of the stripes in a
- * file into a single lvb. It is expected that the caller initializes the
- * current atime, mtime, ctime to avoid regressing a more uptodate time on
- * the local client.
- *
- * If \a kms_only is set then we do not consider the recently seen size (rss)
- * when updating the known minimum size (kms). Even when merging RSS, we will
- * take the KMS value if it's larger. This prevents getattr from stomping on
- * dirty cached pages which extend the file size. */
-int lov_merge_lvb(struct obd_export *exp,
- struct lov_stripe_md *lsm, struct ost_lvb *lvb, int kms_only)
-{
- struct lu_fid fid;
- int rc;
- __u64 kms;
-
- ENTRY;
- lov_stripe_lock(lsm);
- rc = lov_merge_lvb_kms(lsm, lvb, &kms);
- lov_stripe_unlock(lsm);
- if (kms_only)
- lvb->lvb_size = kms;
-
- ostid_fid_unpack(&lsm->lsm_oi, &fid);
- CDEBUG(D_INODE, "merged for FID "DFID" s="LPU64" m="LPU64" a="LPU64
- " c="LPU64" b="LPU64"\n", PFID(&fid), lvb->lvb_size,
- lvb->lvb_mtime, lvb->lvb_atime, lvb->lvb_ctime, lvb->lvb_blocks);
- RETURN(rc);
-}
-
-/* Must be called under the lov_stripe_lock() */
-int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
- obd_off size, int shrink)
-{
- struct lov_oinfo *loi;
- int stripe = 0;
- __u64 kms;
- ENTRY;
-
- LASSERT_SPIN_LOCKED(&lsm->lsm_lock);
-#ifdef __KERNEL__
- LASSERT(lsm->lsm_lock_owner == cfs_curproc_pid());
-#endif
-
- if (shrink) {
- for (; stripe < lsm->lsm_stripe_count; stripe++) {
- struct lov_oinfo *loi = lsm->lsm_oinfo[stripe];
- kms = lov_size_to_stripe(lsm, size, stripe);
- CDEBUG(D_INODE,
- "stripe %d KMS %sing "LPU64"->"LPU64"\n",
- stripe, kms > loi->loi_kms ? "increas":"shrink",
- loi->loi_kms, kms);
- loi_kms_set(loi, loi->loi_lvb.lvb_size = kms);
- }
- RETURN(0);
- }
-
- if (size > 0)
- stripe = lov_stripe_number(lsm, size - 1);
- kms = lov_size_to_stripe(lsm, size, stripe);
- loi = lsm->lsm_oinfo[stripe];
-
- CDEBUG(D_INODE, "stripe %d KMS %sincreasing "LPU64"->"LPU64"\n",
- stripe, kms > loi->loi_kms ? "" : "not ", loi->loi_kms, kms);
- if (kms > loi->loi_kms)
- loi_kms_set(loi, kms);
-
- RETURN(0);
-}
-
void lov_merge_attrs(struct obdo *tgt, struct obdo *src, obd_valid valid,
struct lov_stripe_md *lsm, int stripeno, int *set)
{
- valid &= src->o_valid;
-
- if (*set) {
- if (valid & OBD_MD_FLSIZE) {
- /* this handles sparse files properly */
- obd_size lov_size;
-
- lov_size = lov_stripe_size(lsm, src->o_size, stripeno);
- if (lov_size > tgt->o_size)
- tgt->o_size = lov_size;
- }
- if (valid & OBD_MD_FLBLOCKS)
- tgt->o_blocks += src->o_blocks;
- if (valid & OBD_MD_FLBLKSZ)
- tgt->o_blksize += src->o_blksize;
- if (valid & OBD_MD_FLCTIME && tgt->o_ctime < src->o_ctime)
- tgt->o_ctime = src->o_ctime;
- if (valid & OBD_MD_FLMTIME && tgt->o_mtime < src->o_mtime)
- tgt->o_mtime = src->o_mtime;
- if (valid & OBD_MD_FLDATAVERSION)
- tgt->o_data_version += src->o_data_version;
+ valid &= src->o_valid;
+
+ if (*set != 0) {
+ tgt->o_valid &= valid;
+ if (valid & OBD_MD_FLSIZE) {
+ /* this handles sparse files properly */
+ obd_size lov_size;
+
+ lov_size = lov_stripe_size(lsm, src->o_size, stripeno);
+ if (lov_size > tgt->o_size)
+ tgt->o_size = lov_size;
+ }
+ if (valid & OBD_MD_FLBLOCKS)
+ tgt->o_blocks += src->o_blocks;
+ if (valid & OBD_MD_FLBLKSZ)
+ tgt->o_blksize += src->o_blksize;
+ if (valid & OBD_MD_FLCTIME && tgt->o_ctime < src->o_ctime)
+ tgt->o_ctime = src->o_ctime;
+ if (valid & OBD_MD_FLMTIME && tgt->o_mtime < src->o_mtime)
+ tgt->o_mtime = src->o_mtime;
+ if (valid & OBD_MD_FLDATAVERSION)
+ tgt->o_data_version += src->o_data_version;
+
+ /* handle flags */
+ if (valid & OBD_MD_FLFLAGS)
+ tgt->o_flags &= src->o_flags;
+ else
+ tgt->o_flags = 0;
} else {
memcpy(tgt, src, sizeof(*tgt));
tgt->o_oi = lsm->lsm_oi;
+ tgt->o_valid = valid;
if (valid & OBD_MD_FLSIZE)
tgt->o_size = lov_stripe_size(lsm, src->o_size,
stripeno);
+ tgt->o_flags = 0;
+ if (valid & OBD_MD_FLFLAGS)
+ tgt->o_flags = src->o_flags;
}
- /* data_version needs to be valid on all stripes to be correct! */
- if (!(valid & OBD_MD_FLDATAVERSION))
- tgt->o_valid &= ~OBD_MD_FLDATAVERSION;
+ /* data_version needs to be valid on all stripes to be correct! */
+ if (!(valid & OBD_MD_FLDATAVERSION))
+ tgt->o_valid &= ~OBD_MD_FLDATAVERSION;
- *set += 1;
+ *set += 1;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff