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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_dir.c
+13 -12
View File
@@ -20,6 +20,7 @@
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2013 by Delphix. All rights reserved.
*/
@@ -171,7 +172,7 @@ zfs_dirent_lock(zfs_dirlock_t **dlpp, znode_t *dzp, char *name, znode_t **zpp,
if ((name[0] == '.' &&
(name[1] == '\0' || (name[1] == '.' && name[2] == '\0'))) ||
(zfs_has_ctldir(dzp) && strcmp(name, ZFS_CTLDIR_NAME) == 0))
return (EEXIST);
return (SET_ERROR(EEXIST));
/*
* Case sensitivity and normalization preferences are set when
@@ -242,7 +243,7 @@ zfs_dirent_lock(zfs_dirlock_t **dlpp, znode_t *dzp, char *name, znode_t **zpp,
mutex_exit(&dzp->z_lock);
if (!(flag & ZHAVELOCK))
rw_exit(&dzp->z_name_lock);
return (ENOENT);
return (SET_ERROR(ENOENT));
}
for (dl = dzp->z_dirlocks; dl != NULL; dl = dl->dl_next) {
if ((u8_strcmp(name, dl->dl_name, 0, cmpflags,
@@ -253,7 +254,7 @@ zfs_dirent_lock(zfs_dirlock_t **dlpp, znode_t *dzp, char *name, znode_t **zpp,
mutex_exit(&dzp->z_lock);
if (!(flag & ZHAVELOCK))
rw_exit(&dzp->z_name_lock);
return (ENOENT);
return (SET_ERROR(ENOENT));
}
if (dl == NULL) {
/*
@@ -307,19 +308,19 @@ zfs_dirent_lock(zfs_dirlock_t **dlpp, znode_t *dzp, char *name, znode_t **zpp,
error = sa_lookup(dzp->z_sa_hdl, SA_ZPL_XATTR(zsb), &zoid,
sizeof (zoid));
if (error == 0)
error = (zoid == 0 ? ENOENT : 0);
error = (zoid == 0 ? SET_ERROR(ENOENT) : 0);
} else {
#ifdef HAVE_DNLC
if (update)
vp = dnlc_lookup(ZTOI(dzp), name);
if (vp == DNLC_NO_VNODE) {
iput(vp);
error = ENOENT;
error = SET_ERROR(ENOENT);
} else if (vp) {
if (flag & ZNEW) {
zfs_dirent_unlock(dl);
iput(vp);
return (EEXIST);
return (SET_ERROR(EEXIST));
}
*dlpp = dl;
*zpp = VTOZ(vp);
@@ -341,7 +342,7 @@ zfs_dirent_lock(zfs_dirlock_t **dlpp, znode_t *dzp, char *name, znode_t **zpp,
} else {
if (flag & ZNEW) {
zfs_dirent_unlock(dl);
return (EEXIST);
return (SET_ERROR(EEXIST));
}
error = zfs_zget(zsb, zoid, zpp);
if (error) {
@@ -762,7 +763,7 @@ zfs_link_create(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag)
if (zp->z_unlinked) { /* no new links to unlinked zp */
ASSERT(!(flag & (ZNEW | ZEXISTS)));
mutex_exit(&zp->z_lock);
return (ENOENT);
return (SET_ERROR(ENOENT));
}
zp->z_links++;
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zsb), NULL,
@@ -865,7 +866,7 @@ zfs_link_destroy(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag,
if (zp_is_dir && !zfs_dirempty(zp)) {
mutex_exit(&zp->z_lock);
return (ENOTEMPTY);
return (SET_ERROR(ENOTEMPTY));
}
/*
@@ -969,7 +970,7 @@ zfs_make_xattrdir(znode_t *zp, vattr_t *vap, struct inode **xipp, cred_t *cr)
return (error);
if (zfs_acl_ids_overquota(zsb, &acl_ids)) {
zfs_acl_ids_free(&acl_ids);
return (EDQUOT);
return (SET_ERROR(EDQUOT));
}
top:
@@ -1051,12 +1052,12 @@ top:
if (!(flags & CREATE_XATTR_DIR)) {
zfs_dirent_unlock(dl);
return (ENOENT);
return (SET_ERROR(ENOENT));
}
if (zfs_is_readonly(zsb)) {
zfs_dirent_unlock(dl);
return (EROFS);
return (SET_ERROR(EROFS));
}
/*