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Illumos #3598

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3598 want to dtrace when errors are generated in zfs
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>

References:
  https://www.illumos.org/issues/3598
  illumos/illumos-gate@be6fd75a69

Ported-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1775

Porting notes:

1. include/sys/zfs_context.h has been modified to render some new
   macros inert until dtrace is available on Linux.

2. Linux-specific changes have been adapted to use SET_ERROR().

3. I'm NOT happy about this change.  It does nothing but ugly
   up the code under Linux.  Unfortunately we need to take it to
   avoid more merge conflicts in the future.  -Brian
This commit is contained in:
Matthew Ahrens
2013-03-08 10:41:28 -08:00
committed by Brian Behlendorf
parent 7011fb6004
commit 2e528b49f8
56 changed files with 830 additions and 793 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/zfs_znode.c
+9 -9
View File
@@ -20,7 +20,7 @@
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012 by Delphix. All rights reserved.
* Copyright (c) 2013 by Delphix. All rights reserved.
*/
/* Portions Copyright 2007 Jeremy Teo */
@@ -881,7 +881,7 @@ again:
sa_buf_rele(db, NULL);
ZFS_OBJ_HOLD_EXIT(zsb, obj_num);
iput(ip);
return (EINVAL);
return (SET_ERROR(EINVAL));
}
hdl = dmu_buf_get_user(db);
@@ -913,7 +913,7 @@ again:
mutex_enter(&zp->z_lock);
ASSERT3U(zp->z_id, ==, obj_num);
if (zp->z_unlinked) {
err = ENOENT;
err = SET_ERROR(ENOENT);
} else {
igrab(ZTOI(zp));
*zpp = zp;
@@ -941,7 +941,7 @@ again:
zp = zfs_znode_alloc(zsb, db, doi.doi_data_block_size,
doi.doi_bonus_type, obj_num, NULL, NULL);
if (zp == NULL) {
err = ENOENT;
err = SET_ERROR(ENOENT);
} else {
*zpp = zp;
}
@@ -997,7 +997,7 @@ zfs_rezget(znode_t *zp)
doi.doi_bonus_size < sizeof (znode_phys_t)))) {
sa_buf_rele(db, NULL);
ZFS_OBJ_HOLD_EXIT(zsb, obj_num);
return (EINVAL);
return (SET_ERROR(EINVAL));
}
zfs_znode_sa_init(zsb, zp, db, doi.doi_bonus_type, NULL);
@@ -1023,7 +1023,7 @@ zfs_rezget(znode_t *zp)
if (sa_bulk_lookup(zp->z_sa_hdl, bulk, count)) {
zfs_znode_dmu_fini(zp);
ZFS_OBJ_HOLD_EXIT(zsb, obj_num);
return (EIO);
return (SET_ERROR(EIO));
}
zp->z_mode = mode;
@@ -1031,7 +1031,7 @@ zfs_rezget(znode_t *zp)
if (gen != zp->z_gen) {
zfs_znode_dmu_fini(zp);
ZFS_OBJ_HOLD_EXIT(zsb, obj_num);
return (EIO);
return (SET_ERROR(EIO));
}
zp->z_unlinked = (zp->z_links == 0);
@@ -1408,7 +1408,7 @@ zfs_freesp(znode_t *zp, uint64_t off, uint64_t len, int flag, boolean_t log)
if (ip->i_flock && mandatory_lock(ip)) {
uint64_t length = (len ? len : zp->z_size - off);
if (!lock_may_write(ip, off, length))
return (EAGAIN);
return (SET_ERROR(EAGAIN));
}
if (len == 0) {
@@ -1629,7 +1629,7 @@ zfs_grab_sa_handle(objset_t *osp, uint64_t obj, sa_handle_t **hdlp,
(doi.doi_bonus_type == DMU_OT_ZNODE &&
doi.doi_bonus_size < sizeof (znode_phys_t))) {
sa_buf_rele(*db, tag);
return (ENOTSUP);
return (SET_ERROR(ENOTSUP));
}
error = sa_handle_get(osp, obj, NULL, SA_HDL_PRIVATE, hdlp);