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Update GIT docs, removing remaining patches. They will soon me applies as topic branches

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This commit is contained in:
Brian Behlendorf 2008-11-21 10:55:10 -08:00
parent 9fc325737b
commit 5b1a72b342
9 changed files with 35 additions and 1505 deletions
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52
GIT
View File

@ -95,12 +95,13 @@ are a few rules you need to be aware of. The basic process involves
checking out the relevant topic branch where the changes need to be made,
making the changes, committing the changes to the branch and then merging
those changes in to dependent branches. TopGit provides some tools to make
this pretty easy, although it may be a little sluggish. Here is an example:
this pretty easy, although it may be a little sluggish depending on how many
dependent branches are impacted by the change. Here is an example:
> git checkout t/feature-commit-cb # Checkout the proper branch
> git checkout modify-topic-branch # Checkout the proper branch
> ...update branch... # Update the branch
> git commit -a # Commit your changes
> git checkout t/LAST # Checkout the LAST branch
> git checkout top # Checkout the top branch
> tg update # Recursively merge in new branch
Assuming you change does not introduce any conflicts your done. All branches
@ -110,25 +111,39 @@ continue on with the update.
========================== ADDING A TOPIC BRANCH =========================
Adding a topic branch in TopGit is a little more complicated. When adding
a new branch to the end of the patch graph things are pretty easy and TopGit
does all the work. However, I expect out common case to be adding patches
to the middle of the graph. TopGit will allow you to do this but you must
be careful to manually update the dependency information in the .topdeps
file.
Adding a topic branch in TopGit can be pretty straight forward. If your
adding a non-conflicting patch in parallel with other patches of the same
type, then things are pretty easy and TopGit does all the work.
> git co t/existing-topic-branch # Checkout the branch to add after
> tg create t/new-topic-branch # Create a new topic branch
> git co existing-topic-branch # Checkout the branch to add after
> tg create new-topic-branch # Create a new topic branch
> ...update .topmsg... # Update the branch message
> ...create patch... # Update with your changes
> git commit -a # Commit your changes
> git co t/dependent-topic-branch # Checkout dependent branch
> git co dependent-topic-branch # Checkout dependent branch
> tg depend add new-topic-branch # Update dependencies
> git checkout top # Checkout the top branch
> tg update # Recursively merge in new branch
If you need to add your patch in series with another change things are
a little more complicated. In this case TopGit does not yet support removing
dependencies so you will need to do it by hand, as follows.
> git co existing-topic-branch # Checkout the branch to add after
> tg create new-topic-branch # Create a new topic branch
> ...update .topmsg... # Update the branch message
> ...create patch... # Update with your changes
> git commit -a # Commit your changes
> git co dependent-topic-branch # Checkout dependent branch
> ...update .topdeps... # Manually update dependencies
> git commit -a # Commit your changes
> tg update # TopGit update
> git checkout t/LAST # Checkout the LAST branch
> git checkout top # Checkout the top branch
> tg update # Recursively merge in new branch
Once your done, I find it is a good idea view the repo using the
'tg summary --graphviz' command and verify the updated dependency graph.
========================= REMOVING A TOPIC BRANCH ========================
Removing a topic branch in TopGit is also currently not very easy. To remove
@ -137,15 +152,18 @@ changes on the branch. Then that reversion must be merged in to all dependent
branches, the dependencies manually updated and finally the branch removed.
If the branch is not empty you will not be able to remove it.
> git co t/del-topic-branch # Checkout the branch to delete
> git co delete-topic-branch # Checkout the branch to delete
> tg patch | patch -R -p1 # Revert all branch changes
> git commit -a # Commit your changes
> git checkout t/LAST # Checkout the LAST branch
> git checkout top # Checkout the top branch
> tg update # Recursively merge revert
> git co t/dependent-topic-branch # Checkout dependent branch
> git co dependent-topic-branch # Checkout dependent branch
> ...update .topdeps... # Manually update dependencies
> git commit -a # Commit your changes
> tg delete t/del-topic-branch # Delete empty topic branch
> tg delete delete-topic-branch # Delete empty topic branch
Once your done, I find it is a good idea view the repo using the
'tg summary --graphviz' command and verify the updated dependency graph.
============================ TOPGIT TODO =================================

17
patches/README
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@ -1,17 +0,0 @@
#
# Mostly patches for a userspace build. For now I'm leaving them all
# out until we go through the code base and sort out the userspace
# portion of the build system. We may find we do not want or need
# many of these patches anymore. -Brian
#
zap-cursor-move-to-key.patch # Add a ZAP API to move a ZAP cursor to a
given key.
spa-force-readonly.patch # Add API to discard all writes
no-debug-userspace.patch # Disable debug code on userspace
no-events.patch # Define away spa_event_notify() in userspace
pthreads.patch # Use POSIX threads in userspace.
port-no-zmod.patch # Do not use zmod.h in userspace.
port-pragma-init.patch # Use constructor attribute on non-Solaris
platforms.
lztest-lzdb.patch # Make lztest call lzdb from PATH.
zpool-force.patch # Change -f to -F in zpool command

40
patches/lztest-lzdb.patch
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@ -1,40 +0,0 @@
Make lztest call lzdb from PATH.
Index: zfs+chaos4/cmd/lztest/ztest.c
===================================================================
--- zfs+chaos4.orig/cmd/lztest/ztest.c
+++ zfs+chaos4/cmd/lztest/ztest.c
@@ -3043,30 +3043,17 @@ ztest_verify_blocks(char *pool)
char zbuf[1024];
char *bin;
char *ztest;
- char *isa;
- int isalen;
FILE *fp;
- (void) realpath(getexecname(), zdb);
-
- /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
- bin = strstr(zdb, "/usr/bin/");
- ztest = strstr(bin, "/ztest");
- isa = bin + 8;
- isalen = ztest - isa;
- isa = strdup(isa);
/* LINTED */
- (void) sprintf(bin,
- "/usr/sbin%.*s/zdb -bc%s%s -U /tmp/zpool.cache -O %s %s",
- isalen,
- isa,
+ (void) sprintf(zdb,
+ "lzdb -bc%s%s -U /tmp/zpool.cache -O %s %s",
zopt_verbose >= 3 ? "s" : "",
zopt_verbose >= 4 ? "v" : "",
ztest_random(2) == 0 ? "pre" : "post", pool);
- free(isa);
if (zopt_verbose >= 5)
- (void) printf("Executing %s\n", strstr(zdb, "zdb "));
+ (void) printf("Executing %s\n", strstr(zdb, "lzdb "));
fp = popen(zdb, "r");

184
patches/no-debug-userspace.patch
View File

@ -1,184 +0,0 @@
Disable debug code on userspace
Index: zfs+chaos4/lib/libzfscommon/include/sys/arc.h
===================================================================
--- zfs+chaos4.orig/lib/libzfscommon/include/sys/arc.h
+++ zfs+chaos4/lib/libzfscommon/include/sys/arc.h
@@ -82,7 +82,7 @@ int arc_released(arc_buf_t *buf);
int arc_has_callback(arc_buf_t *buf);
void arc_buf_freeze(arc_buf_t *buf);
void arc_buf_thaw(arc_buf_t *buf);
-#ifdef ZFS_DEBUG
+#if defined(ZFS_DEBUG) || (!defined(_KERNEL) && !defined(NDEBUG))
int arc_referenced(arc_buf_t *buf);
#endif
Index: zfs+chaos4/lib/libzfscommon/include/sys/refcount.h
===================================================================
--- zfs+chaos4.orig/lib/libzfscommon/include/sys/refcount.h
+++ zfs+chaos4/lib/libzfscommon/include/sys/refcount.h
@@ -43,7 +43,7 @@ extern "C" {
*/
#define FTAG ((char *)__func__)
-#if defined(DEBUG) || !defined(_KERNEL)
+#if defined(DEBUG)
typedef struct reference {
list_node_t ref_link;
void *ref_holder;
Index: zfs+chaos4/lib/libzfscommon/include/sys/zfs_context_user.h
===================================================================
--- zfs+chaos4.orig/lib/libzfscommon/include/sys/zfs_context_user.h
+++ zfs+chaos4/lib/libzfscommon/include/sys/zfs_context_user.h
@@ -96,6 +96,8 @@ extern "C" {
#ifdef ZFS_DEBUG
extern void dprintf_setup(int *argc, char **argv);
+#else
+#define dprintf_setup(ac,av) ((void) 0)
#endif /* ZFS_DEBUG */
extern void cmn_err(int, const char *, ...);
@@ -105,21 +107,26 @@ extern void vpanic(const char *, __va_li
#define fm_panic panic
+#ifndef zp_verify
/* This definition is copied from assert.h. */
#if defined(__STDC__)
#if __STDC_VERSION__ - 0 >= 199901L
-#define verify(EX) (void)((EX) || \
+#define zp_verify(EX) (void)((EX) || \
(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
#else
-#define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0))
+#define zp_verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0))
#endif /* __STDC_VERSION__ - 0 >= 199901L */
#else
-#define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0))
+#define zp_verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0))
#endif /* __STDC__ */
+#endif
-
-#define VERIFY verify
+#ifndef VERIFY
+#define VERIFY zp_verify
+#endif
+#ifndef ASSERT
#define ASSERT assert
+#endif
extern void __assert(const char *, const char *, int);
@@ -332,6 +339,7 @@ extern int taskq_member(taskq_t *, void
typedef struct vnode {
uint64_t v_size;
int v_fd;
+ mode_t v_mode;
char *v_path;
} vnode_t;
Index: zfs+chaos4/lib/libzfscommon/include/sys/zfs_debug.h
===================================================================
--- zfs+chaos4.orig/lib/libzfscommon/include/sys/zfs_debug.h
+++ zfs+chaos4/lib/libzfscommon/include/sys/zfs_debug.h
@@ -44,7 +44,7 @@ extern "C" {
* ZFS debugging
*/
-#if defined(DEBUG) || !defined(_KERNEL)
+#if defined(DEBUG)
#define ZFS_DEBUG
#endif
Index: zfs+chaos4/lib/libzpool/arc.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/arc.c
+++ zfs+chaos4/lib/libzpool/arc.c
@@ -1802,7 +1802,7 @@ arc_reclaim_needed(void)
return (1);
#endif
-#else
+#elif defined(ZFS_DEBUG)
if (spa_get_random(100) == 0)
return (1);
#endif
@@ -2881,7 +2881,7 @@ arc_has_callback(arc_buf_t *buf)
return (buf->b_efunc != NULL);
}
-#ifdef ZFS_DEBUG
+#if defined(ZFS_DEBUG) || (!defined(_KERNEL) && !defined(NDEBUG))
int
arc_referenced(arc_buf_t *buf)
{
Index: zfs+chaos4/lib/libzpool/kernel.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/kernel.c
+++ zfs+chaos4/lib/libzpool/kernel.c
@@ -384,6 +384,7 @@ vn_open(char *path, int x1, int flags, i
vp->v_fd = fd;
vp->v_size = st.st_size;
+ vp->v_mode = st.st_mode;
vp->v_path = spa_strdup(path);
return (0);
@@ -422,10 +423,17 @@ vn_rdwr(int uio, vnode_t *vp, void *addr
* To simulate partial disk writes, we split writes into two
* system calls so that the process can be killed in between.
*/
- split = (len > 0 ? rand() % len : 0);
- iolen = pwrite64(vp->v_fd, addr, split, offset);
- iolen += pwrite64(vp->v_fd, (char *)addr + split,
- len - split, offset + split);
+#ifdef ZFS_DEBUG
+ if (!S_ISBLK(vp->v_mode) && !S_ISCHR(vp->v_mode)) {
+ split = (len > 0 ? rand() % len : 0);
+ iolen = pwrite64(vp->v_fd, addr, split, offset);
+ iolen += pwrite64(vp->v_fd, (char *)addr + split,
+ len - split, offset + split);
+ } else
+ iolen = pwrite64(vp->v_fd, addr, len, offset);
+#else
+ iolen = pwrite64(vp->v_fd, addr, len, offset);
+#endif
}
if (iolen < 0)
Index: zfs+chaos4/lib/libzpool/refcount.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/refcount.c
+++ zfs+chaos4/lib/libzpool/refcount.c
@@ -28,7 +28,7 @@
#include <sys/zfs_context.h>
#include <sys/refcount.h>
-#if defined(DEBUG) || !defined(_KERNEL)
+#if defined(DEBUG)
#ifdef _KERNEL
int reference_tracking_enable = FALSE; /* runs out of memory too easily */
Index: zfs+chaos4/lib/libzpool/spa_misc.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/spa_misc.c
+++ zfs+chaos4/lib/libzpool/spa_misc.c
@@ -178,11 +178,15 @@ kmem_cache_t *spa_buffer_pool;
int spa_mode;
#ifdef ZFS_DEBUG
+#ifdef _KERNEL
/* Everything except dprintf is on by default in debug builds */
int zfs_flags = ~ZFS_DEBUG_DPRINTF;
#else
+int zfs_flags = ~0;
+#endif /* _KERNEL */
+#else
int zfs_flags = 0;
-#endif
+#endif /* ZFS_DEBUG */
/*
* zfs_recover can be set to nonzero to attempt to recover from

44
patches/no-events.patch
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@ -1,44 +0,0 @@
Define away spa_event_notify() in userspace - not necessary and breaks compilation in older Solaris builds.
Index: zfs+chaos4/lib/libzfscommon/include/sys/spa.h
===================================================================
--- zfs+chaos4.orig/lib/libzfscommon/include/sys/spa.h
+++ zfs+chaos4/lib/libzfscommon/include/sys/spa.h
@@ -516,7 +516,11 @@ extern int spa_prop_get(spa_t *spa, nvli
extern void spa_prop_clear_bootfs(spa_t *spa, uint64_t obj, dmu_tx_t *tx);
/* asynchronous event notification */
+#ifdef _KERNEL
extern void spa_event_notify(spa_t *spa, vdev_t *vdev, const char *name);
+#else
+#define spa_event_notify(s,v,n) ((void) 0)
+#endif
#ifdef ZFS_DEBUG
#define dprintf_bp(bp, fmt, ...) do { \
Index: zfs+chaos4/lib/libzpool/spa.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/spa.c
+++ zfs+chaos4/lib/libzpool/spa.c
@@ -4449,10 +4449,10 @@ spa_has_spare(spa_t *spa, uint64_t guid)
* in the userland libzpool, as we don't want consumers to misinterpret ztest
* or zdb as real changes.
*/
+#ifdef _KERNEL
void
spa_event_notify(spa_t *spa, vdev_t *vd, const char *name)
{
-#ifdef _KERNEL
sysevent_t *ev;
sysevent_attr_list_t *attr = NULL;
sysevent_value_t value;
@@ -4497,8 +4497,8 @@ done:
if (attr)
sysevent_free_attr(attr);
sysevent_free(ev);
-#endif
}
+#endif
void
spa_discard_io(spa_t *spa)

112
patches/port-no-zmod.patch
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@ -1,112 +0,0 @@
Do not use zmod.h in userspace.
Index: zfs+chaos4/lib/libzpool/gzip.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/gzip.c
+++ zfs+chaos4/lib/libzpool/gzip.c
@@ -28,22 +28,35 @@
#include <sys/debug.h>
#include <sys/types.h>
-#include <sys/zmod.h>
#ifdef _KERNEL
+
#include <sys/systm.h>
-#else
+#include <sys/zmod.h>
+
+typedef size_t zlen_t;
+#define compress_func z_compress_level
+#define uncompress_func z_uncompress
+
+#else /* _KERNEL */
+
#include <strings.h>
+#include <zlib.h>
+
+typedef uLongf zlen_t;
+#define compress_func compress2
+#define uncompress_func uncompress
+
#endif
size_t
gzip_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
{
- size_t dstlen = d_len;
+ zlen_t dstlen = d_len;
ASSERT(d_len <= s_len);
- if (z_compress_level(d_start, &dstlen, s_start, s_len, n) != Z_OK) {
+ if (compress_func(d_start, &dstlen, s_start, s_len, n) != Z_OK) {
if (d_len != s_len)
return (s_len);
@@ -51,18 +64,18 @@ gzip_compress(void *s_start, void *d_sta
return (s_len);
}
- return (dstlen);
+ return ((size_t) dstlen);
}
/*ARGSUSED*/
int
gzip_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
{
- size_t dstlen = d_len;
+ zlen_t dstlen = d_len;
ASSERT(d_len >= s_len);
- if (z_uncompress(d_start, &dstlen, s_start, s_len) != Z_OK)
+ if (uncompress_func(d_start, &dstlen, s_start, s_len) != Z_OK)
return (-1);
return (0);
Index: zfs+chaos4/lib/libzpool/kernel.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/kernel.c
+++ zfs+chaos4/lib/libzpool/kernel.c
@@ -36,7 +36,6 @@
#include <sys/stat.h>
#include <sys/processor.h>
#include <sys/zfs_context.h>
-#include <sys/zmod.h>
#include <sys/utsname.h>
#include <sys/time.h>
@@ -876,31 +875,6 @@ kernel_fini(void)
urandom_fd = -1;
}
-int
-z_uncompress(void *dst, size_t *dstlen, const void *src, size_t srclen)
-{
- int ret;
- uLongf len = *dstlen;
-
- if ((ret = uncompress(dst, &len, src, srclen)) == Z_OK)
- *dstlen = (size_t)len;
-
- return (ret);
-}
-
-int
-z_compress_level(void *dst, size_t *dstlen, const void *src, size_t srclen,
- int level)
-{
- int ret;
- uLongf len = *dstlen;
-
- if ((ret = compress2(dst, &len, src, srclen, level)) == Z_OK)
- *dstlen = (size_t)len;
-
- return (ret);
-}
-
/*ARGSUSED*/
size_t u8_textprep_str(char *i, size_t *il, char *o, size_t *ol, int nf,
size_t vers, int *err)

52
patches/port-pragma-init.patch
View File

@ -1,52 +0,0 @@
Use constructor attribute on non-Solaris platforms.
Index: zfs+chaos4/lib/libuutil/uu_misc.c
===================================================================
--- zfs+chaos4.orig/lib/libuutil/uu_misc.c
+++ zfs+chaos4/lib/libuutil/uu_misc.c
@@ -251,7 +251,13 @@ uu_release_child(void)
uu_release();
}
+#ifdef __GNUC__
+static void
+uu_init(void) __attribute__((constructor));
+#else
#pragma init(uu_init)
+#endif
+
static void
uu_init(void)
{
Index: zfs+chaos4/lib/libzfs/libzfs_mount.c
===================================================================
--- zfs+chaos4.orig/lib/libzfs/libzfs_mount.c
+++ zfs+chaos4/lib/libzfs/libzfs_mount.c
@@ -128,7 +128,13 @@ zfs_share_proto_t share_all_proto[] = {
PROTO_END
};
+#ifdef __GNUC__
+static void
+zfs_iscsi_init(void) __attribute__((constructor));
+#else
#pragma init(zfs_iscsi_init)
+#endif
+
static void
zfs_iscsi_init(void)
{
@@ -548,8 +554,12 @@ static void (*_sa_update_sharetab_ts)(sa
* values to be used later. This is triggered by the runtime loader.
* Make sure the correct ISA version is loaded.
*/
-
+#ifdef __GNUC__
+static void
+_zfs_init_libshare(void) __attribute__((constructor));
+#else
#pragma init(_zfs_init_libshare)
+#endif
static void
_zfs_init_libshare(void)
{

924
patches/pthreads.patch
View File

@ -1,924 +0,0 @@
Use POSIX threads in userspace.
Index: zfs+chaos4/cmd/lztest/ztest.c
===================================================================
--- zfs+chaos4.orig/cmd/lztest/ztest.c
+++ zfs+chaos4/cmd/lztest/ztest.c
@@ -141,7 +141,7 @@ typedef struct ztest_args {
spa_t *za_spa;
objset_t *za_os;
zilog_t *za_zilog;
- thread_t za_thread;
+ pthread_t za_thread;
uint64_t za_instance;
uint64_t za_random;
uint64_t za_diroff;
@@ -224,17 +224,17 @@ ztest_info_t ztest_info[] = {
* Stuff we need to share writably between parent and child.
*/
typedef struct ztest_shared {
- mutex_t zs_vdev_lock;
- rwlock_t zs_name_lock;
- uint64_t zs_vdev_primaries;
- uint64_t zs_enospc_count;
- hrtime_t zs_start_time;
- hrtime_t zs_stop_time;
- uint64_t zs_alloc;
- uint64_t zs_space;
- ztest_info_t zs_info[ZTEST_FUNCS];
- mutex_t zs_sync_lock[ZTEST_SYNC_LOCKS];
- uint64_t zs_seq[ZTEST_SYNC_LOCKS];
+ pthread_mutex_t zs_vdev_lock;
+ pthread_rwlock_t zs_name_lock;
+ uint64_t zs_vdev_primaries;
+ uint64_t zs_enospc_count;
+ hrtime_t zs_start_time;
+ hrtime_t zs_stop_time;
+ uint64_t zs_alloc;
+ uint64_t zs_space;
+ ztest_info_t zs_info[ZTEST_FUNCS];
+ pthread_mutex_t zs_sync_lock[ZTEST_SYNC_LOCKS];
+ uint64_t zs_seq[ZTEST_SYNC_LOCKS];
} ztest_shared_t;
static char ztest_dev_template[] = "%s/%s.%llua";
@@ -818,7 +818,7 @@ ztest_spa_create_destroy(ztest_args_t *z
* Attempt to create an existing pool. It shouldn't matter
* what's in the nvroot; we should fail with EEXIST.
*/
- (void) rw_rdlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock);
nvroot = make_vdev_root(0, 0, 0, 0, 1);
error = spa_create(za->za_pool, nvroot, NULL, NULL);
nvlist_free(nvroot);
@@ -834,7 +834,7 @@ ztest_spa_create_destroy(ztest_args_t *z
fatal(0, "spa_destroy() = %d", error);
spa_close(spa, FTAG);
- (void) rw_unlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock);
}
/*
@@ -851,7 +851,7 @@ ztest_vdev_add_remove(ztest_args_t *za)
if (zopt_verbose >= 6)
(void) printf("adding vdev\n");
- (void) mutex_lock(&ztest_shared->zs_vdev_lock);
+ (void) pthread_mutex_lock(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, RW_READER, FTAG);
@@ -869,7 +869,7 @@ ztest_vdev_add_remove(ztest_args_t *za)
error = spa_vdev_add(spa, nvroot);
nvlist_free(nvroot);
- (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
+ (void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock);
if (error == ENOSPC)
ztest_record_enospc("spa_vdev_add");
@@ -927,7 +927,7 @@ ztest_vdev_attach_detach(ztest_args_t *z
int error, expected_error;
int fd;
- (void) mutex_lock(&ztest_shared->zs_vdev_lock);
+ (void) pthread_mutex_lock(&ztest_shared->zs_vdev_lock);
spa_config_enter(spa, RW_READER, FTAG);
@@ -1054,7 +1054,7 @@ ztest_vdev_attach_detach(ztest_args_t *z
oldpath, newpath, replacing, error, expected_error);
}
- (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
+ (void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock);
}
/*
@@ -1071,7 +1071,7 @@ ztest_vdev_LUN_growth(ztest_args_t *za)
size_t fsize;
int fd;
- (void) mutex_lock(&ztest_shared->zs_vdev_lock);
+ (void) pthread_mutex_lock(&ztest_shared->zs_vdev_lock);
/*
* Pick a random leaf vdev.
@@ -1102,7 +1102,7 @@ ztest_vdev_LUN_growth(ztest_args_t *za)
(void) close(fd);
}
- (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
+ (void) pthread_mutex_unlock(&ztest_shared->zs_vdev_lock);
}
/* ARGSUSED */
@@ -1198,7 +1198,7 @@ ztest_dmu_objset_create_destroy(ztest_ar
uint64_t objects;
ztest_replay_t zr;
- (void) rw_rdlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock);
(void) snprintf(name, 100, "%s/%s_temp_%llu", za->za_pool, za->za_pool,
(u_longlong_t)za->za_instance);
@@ -1242,7 +1242,7 @@ ztest_dmu_objset_create_destroy(ztest_ar
if (error) {
if (error == ENOSPC) {
ztest_record_enospc("dmu_objset_create");
- (void) rw_unlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock);
return;
}
fatal(0, "dmu_objset_create(%s) = %d", name, error);
@@ -1321,7 +1321,7 @@ ztest_dmu_objset_create_destroy(ztest_ar
if (error)
fatal(0, "dmu_objset_destroy(%s) = %d", name, error);
- (void) rw_unlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock);
}
/*
@@ -1335,7 +1335,7 @@ ztest_dmu_snapshot_create_destroy(ztest_
char snapname[100];
char osname[MAXNAMELEN];
- (void) rw_rdlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock);
dmu_objset_name(os, osname);
(void) snprintf(snapname, 100, "%s@%llu", osname,
(u_longlong_t)za->za_instance);
@@ -1348,7 +1348,7 @@ ztest_dmu_snapshot_create_destroy(ztest_
ztest_record_enospc("dmu_take_snapshot");
else if (error != 0 && error != EEXIST)
fatal(0, "dmu_take_snapshot() = %d", error);
- (void) rw_unlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock);
}
#define ZTEST_TRAVERSE_BLOCKS 1000
@@ -1992,7 +1992,7 @@ ztest_dmu_write_parallel(ztest_args_t *z
int bs = ZTEST_DIROBJ_BLOCKSIZE;
int do_free = 0;
uint64_t off, txg_how;
- mutex_t *lp;
+ pthread_mutex_t *lp;
char osname[MAXNAMELEN];
char iobuf[SPA_MAXBLOCKSIZE];
blkptr_t blk = { 0 };
@@ -2041,7 +2041,7 @@ ztest_dmu_write_parallel(ztest_args_t *z
}
lp = &ztest_shared->zs_sync_lock[b];
- (void) mutex_lock(lp);
+ (void) pthread_mutex_lock(lp);
wbt->bt_objset = dmu_objset_id(os);
wbt->bt_object = ZTEST_DIROBJ;
@@ -2087,7 +2087,7 @@ ztest_dmu_write_parallel(ztest_args_t *z
dmu_write(os, ZTEST_DIROBJ, off, btsize, wbt, tx);
}
- (void) mutex_unlock(lp);
+ (void) pthread_mutex_unlock(lp);
if (ztest_random(1000) == 0)
(void) poll(NULL, 0, 1); /* open dn_notxholds window */
@@ -2106,7 +2106,7 @@ ztest_dmu_write_parallel(ztest_args_t *z
/*
* dmu_sync() the block we just wrote.
*/
- (void) mutex_lock(lp);
+ (void) pthread_mutex_lock(lp);
blkoff = P2ALIGN_TYPED(off, bs, uint64_t);
error = dmu_buf_hold(os, ZTEST_DIROBJ, blkoff, FTAG, &db);
@@ -2114,7 +2114,7 @@ ztest_dmu_write_parallel(ztest_args_t *z
if (error) {
dprintf("dmu_buf_hold(%s, %d, %llx) = %d\n",
osname, ZTEST_DIROBJ, blkoff, error);
- (void) mutex_unlock(lp);
+ (void) pthread_mutex_unlock(lp);
return;
}
blkoff = off - blkoff;
@@ -2122,7 +2122,7 @@ ztest_dmu_write_parallel(ztest_args_t *z
dmu_buf_rele(db, FTAG);
za->za_dbuf = NULL;
- (void) mutex_unlock(lp);
+ (void) pthread_mutex_unlock(lp);
if (error) {
dprintf("dmu_sync(%s, %d, %llx) = %d\n",
@@ -2502,7 +2502,7 @@ ztest_dsl_prop_get_set(ztest_args_t *za)
char osname[MAXNAMELEN];
int error;
- (void) rw_rdlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock);
dmu_objset_name(os, osname);
@@ -2541,7 +2541,7 @@ ztest_dsl_prop_get_set(ztest_args_t *za)
}
}
- (void) rw_unlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock);
}
static void
@@ -2693,7 +2693,7 @@ ztest_spa_rename(ztest_args_t *za)
int error;
spa_t *spa;
- (void) rw_wrlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_wrlock(&ztest_shared->zs_name_lock);
oldname = za->za_pool;
newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL);
@@ -2745,7 +2745,7 @@ ztest_spa_rename(ztest_args_t *za)
umem_free(newname, strlen(newname) + 1);
- (void) rw_unlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock);
}
@@ -3090,13 +3090,13 @@ ztest_run(char *pool)
ztest_args_t *za;
spa_t *spa;
char name[100];
- thread_t tid;
+ pthread_t tid;
- (void) _mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL);
- (void) rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL);
+ (void) pthread_mutex_init(&zs->zs_vdev_lock, NULL);
+ (void) pthread_rwlock_init(&zs->zs_name_lock, NULL);
for (t = 0; t < ZTEST_SYNC_LOCKS; t++)
- (void) _mutex_init(&zs->zs_sync_lock[t], USYNC_THREAD, NULL);
+ (void) pthread_mutex_init(&zs->zs_sync_lock[t], NULL);
/*
* Destroy one disk before we even start.
@@ -3153,7 +3153,7 @@ ztest_run(char *pool)
* start the thread before setting the zio_io_fail_shift, which
* will indicate our failure rate.
*/
- error = thr_create(0, 0, ztest_suspend_monitor, NULL, THR_BOUND, &tid);
+ error = pthread_create(&tid, NULL, ztest_suspend_monitor, NULL);
if (error) {
fatal(0, "can't create suspend monitor thread: error %d",
t, error);
@@ -3217,7 +3217,7 @@ ztest_run(char *pool)
if (t < zopt_datasets) {
ztest_replay_t zr;
int test_future = FALSE;
- (void) rw_rdlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock);
(void) snprintf(name, 100, "%s/%s_%d", pool, pool, d);
error = dmu_objset_create(name, DMU_OST_OTHER, NULL, 0,
ztest_create_cb, NULL);
@@ -3225,7 +3225,7 @@ ztest_run(char *pool)
test_future = TRUE;
} else if (error == ENOSPC) {
zs->zs_enospc_count++;
- (void) rw_unlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock);
break;
} else if (error != 0) {
fatal(0, "dmu_objset_create(%s) = %d",
@@ -3236,7 +3236,7 @@ ztest_run(char *pool)
if (error)
fatal(0, "dmu_objset_open('%s') = %d",
name, error);
- (void) rw_unlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock);
if (test_future)
ztest_dmu_check_future_leak(&za[t]);
zr.zr_os = za[d].za_os;
@@ -3245,15 +3245,15 @@ ztest_run(char *pool)
za[d].za_zilog = zil_open(za[d].za_os, NULL);
}
- error = thr_create(0, 0, ztest_thread, &za[t], THR_BOUND,
- &za[t].za_thread);
+ error = pthread_create(&za[t].za_thread, NULL, ztest_thread,
+ &za[t]);
if (error)
fatal(0, "can't create thread %d: error %d",
t, error);
}
while (--t >= 0) {
- error = thr_join(za[t].za_thread, NULL, NULL);
+ error = pthread_join(za[t].za_thread, NULL);
if (error)
fatal(0, "thr_join(%d) = %d", t, error);
if (za[t].za_th)
@@ -3276,14 +3276,14 @@ ztest_run(char *pool)
* If we had out-of-space errors, destroy a random objset.
*/
if (zs->zs_enospc_count != 0) {
- (void) rw_rdlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_rdlock(&ztest_shared->zs_name_lock);
d = (int)ztest_random(zopt_datasets);
(void) snprintf(name, 100, "%s/%s_%d", pool, pool, d);
if (zopt_verbose >= 3)
(void) printf("Destroying %s to free up space\n", name);
(void) dmu_objset_find(name, ztest_destroy_cb, &za[d],
DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
- (void) rw_unlock(&ztest_shared->zs_name_lock);
+ (void) pthread_rwlock_unlock(&ztest_shared->zs_name_lock);
}
txg_wait_synced(spa_get_dsl(spa), 0);
@@ -3301,7 +3301,7 @@ ztest_run(char *pool)
mutex_enter(&spa->spa_zio_lock);
cv_broadcast(&spa->spa_zio_cv);
mutex_exit(&spa->spa_zio_lock);
- error = thr_join(tid, NULL, NULL);
+ error = pthread_join(tid, NULL);
if (error)
fatal(0, "thr_join(%d) = %d", tid, error);
Index: zfs+chaos4/lib/libuutil/uu_misc.c
===================================================================
--- zfs+chaos4.orig/lib/libuutil/uu_misc.c
+++ zfs+chaos4/lib/libuutil/uu_misc.c
@@ -37,7 +37,6 @@
#include <stdlib.h>
#include <string.h>
#include <sys/debug.h>
-#include <thread.h>
#include <unistd.h>
#if !defined(TEXT_DOMAIN)
@@ -70,11 +69,12 @@ static va_list uu_panic_args;
static pthread_t uu_panic_thread;
static uint32_t _uu_main_error;
+static __thread int _uu_main_thread = 0;
void
uu_set_error(uint_t code)
{
- if (thr_main() != 0) {
+ if (_uu_main_thread) {
_uu_main_error = code;
return;
}
@@ -103,7 +103,7 @@ uu_set_error(uint_t code)
uint32_t
uu_error(void)
{
- if (thr_main() != 0)
+ if (_uu_main_thread)
return (_uu_main_error);
if (uu_error_key_setup < 0) /* can't happen? */
@@ -255,5 +255,6 @@ uu_release_child(void)
static void
uu_init(void)
{
+ _uu_main_thread = 1;
(void) pthread_atfork(uu_lockup, uu_release, uu_release_child);
}
Index: zfs+chaos4/lib/libzfscommon/include/sys/zfs_context_user.h
===================================================================
--- zfs+chaos4.orig/lib/libzfscommon/include/sys/zfs_context_user.h
+++ zfs+chaos4/lib/libzfscommon/include/sys/zfs_context_user.h
@@ -52,8 +52,7 @@ extern "C" {
#include <errno.h>
#include <string.h>
#include <strings.h>
-#include <synch.h>
-#include <thread.h>
+#include <pthread.h>
#include <assert.h>
#include <alloca.h>
#include <umem.h>
@@ -191,13 +190,15 @@ _NOTE(CONSTCOND) } while (0)
/*
* Threads
*/
-#define curthread ((void *)(uintptr_t)thr_self())
+
+/* XXX: not portable */
+#define curthread ((void *)(uintptr_t)pthread_self())
typedef struct kthread kthread_t;
#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
zk_thread_create(func, arg)
-#define thread_exit() thr_exit(NULL)
+#define thread_exit() pthread_exit(NULL)
extern kthread_t *zk_thread_create(void (*func)(), void *arg);
@@ -207,28 +208,18 @@ extern kthread_t *zk_thread_create(void
/*
* Mutexes
*/
+#define MTX_MAGIC 0x9522f51362a6e326ull
typedef struct kmutex {
void *m_owner;
- boolean_t initialized;
- mutex_t m_lock;
+ uint64_t m_magic;
+ pthread_mutex_t m_lock;
} kmutex_t;
-#define MUTEX_DEFAULT USYNC_THREAD
-#undef MUTEX_HELD
-#define MUTEX_HELD(m) _mutex_held(&(m)->m_lock)
-
-/*
- * Argh -- we have to get cheesy here because the kernel and userland
- * have different signatures for the same routine.
- */
-extern int _mutex_init(mutex_t *mp, int type, void *arg);
-extern int _mutex_destroy(mutex_t *mp);
-
-#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp))
-#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp))
+#define MUTEX_DEFAULT 0
+#define MUTEX_HELD(m) ((m)->m_owner == curthread)
-extern void zmutex_init(kmutex_t *mp);
-extern void zmutex_destroy(kmutex_t *mp);
+extern void mutex_init(kmutex_t *mp, char *name, int type, void *cookie);
+extern void mutex_destroy(kmutex_t *mp);
extern void mutex_enter(kmutex_t *mp);
extern void mutex_exit(kmutex_t *mp);
extern int mutex_tryenter(kmutex_t *mp);
@@ -237,23 +228,24 @@ extern void *mutex_owner(kmutex_t *mp);
/*
* RW locks
*/
+#define RW_MAGIC 0x4d31fb123648e78aull
typedef struct krwlock {
- void *rw_owner;
- boolean_t initialized;
- rwlock_t rw_lock;
+ void *rw_owner;
+ void *rw_wr_owner;
+ uint64_t rw_magic;
+ pthread_rwlock_t rw_lock;
+ uint_t rw_readers;
} krwlock_t;
typedef int krw_t;
#define RW_READER 0
#define RW_WRITER 1
-#define RW_DEFAULT USYNC_THREAD
-
-#undef RW_READ_HELD
-#define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock)
+#define RW_DEFAULT 0
-#undef RW_WRITE_HELD
-#define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock)
+#define RW_READ_HELD(x) ((x)->rw_readers > 0)
+#define RW_WRITE_HELD(x) ((x)->rw_wr_owner == curthread)
+#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
extern void rw_destroy(krwlock_t *rwlp);
@@ -271,9 +263,13 @@ extern gid_t *crgetgroups(cred_t *cr);
/*
* Condition variables
*/
-typedef cond_t kcondvar_t;
+#define CV_MAGIC 0xd31ea9a83b1b30c4ull
+typedef struct kcondvar {
+ uint64_t cv_magic;
+ pthread_cond_t cv;
+} kcondvar_t;
-#define CV_DEFAULT USYNC_THREAD
+#define CV_DEFAULT 0
extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
extern void cv_destroy(kcondvar_t *cv);
@@ -444,7 +440,8 @@ extern void delay(clock_t ticks);
#define minclsyspri 60
#define maxclsyspri 99
-#define CPU_SEQID (thr_self() & (max_ncpus - 1))
+/* XXX: not portable */
+#define CPU_SEQID (pthread_self() & (max_ncpus - 1))
#define kcred NULL
#define CRED() NULL
Index: zfs+chaos4/lib/libzpool/kernel.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/kernel.c
+++ zfs+chaos4/lib/libzpool/kernel.c
@@ -38,6 +38,7 @@
#include <sys/zfs_context.h>
#include <sys/zmod.h>
#include <sys/utsname.h>
+#include <sys/time.h>
/*
* Emulation of kernel services in userland.
@@ -60,11 +61,15 @@ struct utsname utsname = {
kthread_t *
zk_thread_create(void (*func)(), void *arg)
{
- thread_t tid;
+ pthread_t tid;
- VERIFY(thr_create(0, 0, (void *(*)(void *))func, arg, THR_DETACHED,
- &tid) == 0);
+ pthread_attr_t attr;
+ VERIFY(pthread_attr_init(&attr) == 0);
+ VERIFY(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED) == 0);
+ VERIFY(pthread_create(&tid, &attr, (void *(*)(void *))func, arg) == 0);
+
+ /* XXX: not portable */
return ((void *)(uintptr_t)tid);
}
@@ -97,30 +102,37 @@ kstat_delete(kstat_t *ksp)
* =========================================================================
*/
void
-zmutex_init(kmutex_t *mp)
+mutex_init(kmutex_t *mp, char *name, int type, void *cookie)
{
+ ASSERT(type == MUTEX_DEFAULT);
+ ASSERT(cookie == NULL);
+
+#ifdef IM_FEELING_LUCKY
+ ASSERT(mp->m_magic != MTX_MAGIC);
+#endif
+
mp->m_owner = NULL;
- mp->initialized = B_TRUE;
- (void) _mutex_init(&mp->m_lock, USYNC_THREAD, NULL);
+ mp->m_magic = MTX_MAGIC;
+ VERIFY3S(pthread_mutex_init(&mp->m_lock, NULL), ==, 0);
}
void
-zmutex_destroy(kmutex_t *mp)
+mutex_destroy(kmutex_t *mp)
{
- ASSERT(mp->initialized == B_TRUE);
+ ASSERT(mp->m_magic == MTX_MAGIC);
ASSERT(mp->m_owner == NULL);
- (void) _mutex_destroy(&(mp)->m_lock);
+ VERIFY3S(pthread_mutex_destroy(&(mp)->m_lock), ==, 0);
mp->m_owner = (void *)-1UL;
- mp->initialized = B_FALSE;
+ mp->m_magic = 0;
}
void
mutex_enter(kmutex_t *mp)
{
- ASSERT(mp->initialized == B_TRUE);
+ ASSERT(mp->m_magic == MTX_MAGIC);
ASSERT(mp->m_owner != (void *)-1UL);
ASSERT(mp->m_owner != curthread);
- VERIFY(mutex_lock(&mp->m_lock) == 0);
+ VERIFY3S(pthread_mutex_lock(&mp->m_lock), ==, 0);
ASSERT(mp->m_owner == NULL);
mp->m_owner = curthread;
}
@@ -128,9 +140,9 @@ mutex_enter(kmutex_t *mp)
int
mutex_tryenter(kmutex_t *mp)
{
- ASSERT(mp->initialized == B_TRUE);
+ ASSERT(mp->m_magic == MTX_MAGIC);
ASSERT(mp->m_owner != (void *)-1UL);
- if (0 == mutex_trylock(&mp->m_lock)) {
+ if (0 == pthread_mutex_trylock(&mp->m_lock)) {
ASSERT(mp->m_owner == NULL);
mp->m_owner = curthread;
return (1);
@@ -142,16 +154,16 @@ mutex_tryenter(kmutex_t *mp)
void
mutex_exit(kmutex_t *mp)
{
- ASSERT(mp->initialized == B_TRUE);
+ ASSERT(mp->m_magic == MTX_MAGIC);
ASSERT(mutex_owner(mp) == curthread);
mp->m_owner = NULL;
- VERIFY(mutex_unlock(&mp->m_lock) == 0);
+ VERIFY3S(pthread_mutex_unlock(&mp->m_lock), ==, 0);
}
void *
mutex_owner(kmutex_t *mp)
{
- ASSERT(mp->initialized == B_TRUE);
+ ASSERT(mp->m_magic == MTX_MAGIC);
return (mp->m_owner);
}
@@ -164,31 +176,48 @@ mutex_owner(kmutex_t *mp)
void
rw_init(krwlock_t *rwlp, char *name, int type, void *arg)
{
- rwlock_init(&rwlp->rw_lock, USYNC_THREAD, NULL);
+ ASSERT(type == RW_DEFAULT);
+ ASSERT(arg == NULL);
+
+#ifdef IM_FEELING_LUCKY
+ ASSERT(rwlp->rw_magic != RW_MAGIC);
+#endif
+
+ VERIFY3S(pthread_rwlock_init(&rwlp->rw_lock, NULL), ==, 0);
rwlp->rw_owner = NULL;
- rwlp->initialized = B_TRUE;
+ rwlp->rw_wr_owner = NULL;
+ rwlp->rw_readers = 0;
+ rwlp->rw_magic = RW_MAGIC;
}
void
rw_destroy(krwlock_t *rwlp)
{
- rwlock_destroy(&rwlp->rw_lock);
- rwlp->rw_owner = (void *)-1UL;
- rwlp->initialized = B_FALSE;
+ ASSERT(rwlp->rw_magic == RW_MAGIC);
+
+ VERIFY3S(pthread_rwlock_destroy(&rwlp->rw_lock), ==, 0);
+ rwlp->rw_magic = 0;
}
void
rw_enter(krwlock_t *rwlp, krw_t rw)
{
- ASSERT(!RW_LOCK_HELD(rwlp));
- ASSERT(rwlp->initialized == B_TRUE);
- ASSERT(rwlp->rw_owner != (void *)-1UL);
+ ASSERT(rwlp->rw_magic == RW_MAGIC);
ASSERT(rwlp->rw_owner != curthread);
+ ASSERT(rwlp->rw_wr_owner != curthread);
- if (rw == RW_READER)
- (void) rw_rdlock(&rwlp->rw_lock);
- else
- (void) rw_wrlock(&rwlp->rw_lock);
+ if (rw == RW_READER) {
+ VERIFY3S(pthread_rwlock_rdlock(&rwlp->rw_lock), ==, 0);
+ ASSERT(rwlp->rw_wr_owner == NULL);
+
+ atomic_inc_uint(&rwlp->rw_readers);
+ } else {
+ VERIFY3S(pthread_rwlock_wrlock(&rwlp->rw_lock), ==, 0);
+ ASSERT(rwlp->rw_wr_owner == NULL);
+ ASSERT3U(rwlp->rw_readers, ==, 0);
+
+ rwlp->rw_wr_owner = curthread;
+ }
rwlp->rw_owner = curthread;
}
@@ -196,11 +225,16 @@ rw_enter(krwlock_t *rwlp, krw_t rw)
void
rw_exit(krwlock_t *rwlp)
{
- ASSERT(rwlp->initialized == B_TRUE);
- ASSERT(rwlp->rw_owner != (void *)-1UL);
+ ASSERT(rwlp->rw_magic == RW_MAGIC);
+ ASSERT(RW_LOCK_HELD(rwlp));
+
+ if (RW_READ_HELD(rwlp))
+ atomic_dec_uint(&rwlp->rw_readers);
+ else
+ rwlp->rw_wr_owner = NULL;
rwlp->rw_owner = NULL;
- (void) rw_unlock(&rwlp->rw_lock);
+ VERIFY3S(pthread_rwlock_unlock(&rwlp->rw_lock), ==, 0);
}
int
@@ -208,19 +242,29 @@ rw_tryenter(krwlock_t *rwlp, krw_t rw)
{
int rv;
- ASSERT(rwlp->initialized == B_TRUE);
- ASSERT(rwlp->rw_owner != (void *)-1UL);
+ ASSERT(rwlp->rw_magic == RW_MAGIC);
if (rw == RW_READER)
- rv = rw_tryrdlock(&rwlp->rw_lock);
+ rv = pthread_rwlock_tryrdlock(&rwlp->rw_lock);
else
- rv = rw_trywrlock(&rwlp->rw_lock);
+ rv = pthread_rwlock_trywrlock(&rwlp->rw_lock);
if (rv == 0) {
+ ASSERT(rwlp->rw_wr_owner == NULL);
+
+ if (rw == RW_READER)
+ atomic_inc_uint(&rwlp->rw_readers);
+ else {
+ ASSERT3U(rwlp->rw_readers, ==, 0);
+ rwlp->rw_wr_owner = curthread;
+ }
+
rwlp->rw_owner = curthread;
return (1);
}
+ VERIFY3S(rv, ==, EBUSY);
+
return (0);
}
@@ -228,8 +272,7 @@ rw_tryenter(krwlock_t *rwlp, krw_t rw)
int
rw_tryupgrade(krwlock_t *rwlp)
{
- ASSERT(rwlp->initialized == B_TRUE);
- ASSERT(rwlp->rw_owner != (void *)-1UL);
+ ASSERT(rwlp->rw_magic == RW_MAGIC);
return (0);
}
@@ -243,22 +286,34 @@ rw_tryupgrade(krwlock_t *rwlp)
void
cv_init(kcondvar_t *cv, char *name, int type, void *arg)
{
- VERIFY(cond_init(cv, type, NULL) == 0);
+ ASSERT(type == CV_DEFAULT);
+
+#ifdef IM_FEELING_LUCKY
+ ASSERT(cv->cv_magic != CV_MAGIC);
+#endif
+
+ cv->cv_magic = CV_MAGIC;
+
+ VERIFY3S(pthread_cond_init(&cv->cv, NULL), ==, 0);
}
void
cv_destroy(kcondvar_t *cv)
{
- VERIFY(cond_destroy(cv) == 0);
+ ASSERT(cv->cv_magic == CV_MAGIC);
+ VERIFY3S(pthread_cond_destroy(&cv->cv), ==, 0);
+ cv->cv_magic = 0;
}
void
cv_wait(kcondvar_t *cv, kmutex_t *mp)
{
+ ASSERT(cv->cv_magic == CV_MAGIC);
ASSERT(mutex_owner(mp) == curthread);
mp->m_owner = NULL;
- int ret = cond_wait(cv, &mp->m_lock);
- VERIFY(ret == 0 || ret == EINTR);
+ int ret = pthread_cond_wait(&cv->cv, &mp->m_lock);
+ if (ret != 0)
+ VERIFY3S(ret, ==, EINTR);
mp->m_owner = curthread;
}
@@ -266,29 +321,38 @@ clock_t
cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime)
{
int error;
+ struct timeval tv;
timestruc_t ts;
clock_t delta;
+ ASSERT(cv->cv_magic == CV_MAGIC);
+
top:
delta = abstime - lbolt;
if (delta <= 0)
return (-1);
- ts.tv_sec = delta / hz;
- ts.tv_nsec = (delta % hz) * (NANOSEC / hz);
+ VERIFY(gettimeofday(&tv, NULL) == 0);
+
+ ts.tv_sec = tv.tv_sec + delta / hz;
+ ts.tv_nsec = tv.tv_usec * 1000 + (delta % hz) * (NANOSEC / hz);
+ if (ts.tv_nsec >= NANOSEC) {
+ ts.tv_sec++;
+ ts.tv_nsec -= NANOSEC;
+ }
ASSERT(mutex_owner(mp) == curthread);
mp->m_owner = NULL;
- error = cond_reltimedwait(cv, &mp->m_lock, &ts);
+ error = pthread_cond_timedwait(&cv->cv, &mp->m_lock, &ts);
mp->m_owner = curthread;
- if (error == ETIME)
+ if (error == ETIMEDOUT)
return (-1);
if (error == EINTR)
goto top;
- ASSERT(error == 0);
+ VERIFY3S(error, ==, 0);
return (1);
}
@@ -296,13 +360,15 @@ top:
void
cv_signal(kcondvar_t *cv)
{
- VERIFY(cond_signal(cv) == 0);
+ ASSERT(cv->cv_magic == CV_MAGIC);
+ VERIFY3S(pthread_cond_signal(&cv->cv), ==, 0);
}
void
cv_broadcast(kcondvar_t *cv)
{
- VERIFY(cond_broadcast(cv) == 0);
+ ASSERT(cv->cv_magic == CV_MAGIC);
+ VERIFY3S(pthread_cond_broadcast(&cv->cv), ==, 0);
}
/*
@@ -549,11 +615,11 @@ __dprintf(const char *file, const char *
dprintf_find_string(func)) {
/* Print out just the function name if requested */
flockfile(stdout);
- /* XXX: the following printf may not be portable */
+ /* XXX: the following 2 printfs may not be portable */
if (dprintf_find_string("pid"))
(void) printf("%llu ", (u_longlong_t) getpid());
if (dprintf_find_string("tid"))
- (void) printf("%u ", (uint_t) thr_self());
+ (void) printf("%u ", (uint_t) pthread_self());
if (dprintf_find_string("cpu"))
(void) printf("%u ", getcpuid());
if (dprintf_find_string("time"))
Index: zfs+chaos4/lib/libzpool/taskq.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/taskq.c
+++ zfs+chaos4/lib/libzpool/taskq.c
@@ -43,7 +43,7 @@ struct taskq {
krwlock_t tq_threadlock;
kcondvar_t tq_dispatch_cv;
kcondvar_t tq_wait_cv;
- thread_t *tq_threadlist;
+ pthread_t *tq_threadlist;
int tq_flags;
int tq_active;
int tq_nthreads;
@@ -186,7 +186,7 @@ taskq_create(const char *name, int nthre
tq->tq_maxalloc = maxalloc;
tq->tq_task.task_next = &tq->tq_task;
tq->tq_task.task_prev = &tq->tq_task;
- tq->tq_threadlist = kmem_alloc(nthreads * sizeof (thread_t), KM_SLEEP);
+ tq->tq_threadlist = kmem_alloc(nthreads * sizeof (pthread_t), KM_SLEEP);
if (flags & TASKQ_PREPOPULATE) {
mutex_enter(&tq->tq_lock);
@@ -196,8 +196,8 @@ taskq_create(const char *name, int nthre
}
for (t = 0; t < nthreads; t++)
- VERIFY(thr_create(0, 0, taskq_thread,
- tq, THR_BOUND, &tq->tq_threadlist[t]) == 0);
+ VERIFY(pthread_create(&tq->tq_threadlist[t],
+ NULL, taskq_thread, tq) == 0);
return (tq);
}
@@ -227,9 +227,9 @@ taskq_destroy(taskq_t *tq)
mutex_exit(&tq->tq_lock);
for (t = 0; t < nthreads; t++)
- VERIFY(thr_join(tq->tq_threadlist[t], NULL, NULL) == 0);
+ VERIFY(pthread_join(tq->tq_threadlist[t], NULL) == 0);
- kmem_free(tq->tq_threadlist, nthreads * sizeof (thread_t));
+ kmem_free(tq->tq_threadlist, nthreads * sizeof (pthread_t));
rw_destroy(&tq->tq_threadlock);
mutex_destroy(&tq->tq_lock);
@@ -248,7 +248,7 @@ taskq_member(taskq_t *tq, void *t)
return (1);
for (i = 0; i < tq->tq_nthreads; i++)
- if (tq->tq_threadlist[i] == (thread_t)(uintptr_t)t)
+ if (tq->tq_threadlist[i] == (pthread_t)(uintptr_t)t)
return (1);
return (0);

115
patches/zap-cursor-move-to-key.patch
View File

@ -1,115 +0,0 @@
Add a ZAP API to move a ZAP cursor to a given key.
Index: zfs+chaos4/lib/libzfscommon/include/sys/zap.h
===================================================================
--- zfs+chaos4.orig/lib/libzfscommon/include/sys/zap.h
+++ zfs+chaos4/lib/libzfscommon/include/sys/zap.h
@@ -302,6 +302,11 @@ void zap_cursor_advance(zap_cursor_t *zc
uint64_t zap_cursor_serialize(zap_cursor_t *zc);
/*
+ * Advance the cursor to the attribute having the key.
+ */
+int zap_cursor_move_to_key(zap_cursor_t *zc, const char *name, matchtype_t mt);
+
+/*
* Initialize a zap cursor pointing to the position recorded by
* zap_cursor_serialize (in the "serialized" argument). You can also
* use a "serialized" argument of 0 to start at the beginning of the
Index: zfs+chaos4/lib/libzfscommon/include/sys/zap_impl.h
===================================================================
--- zfs+chaos4.orig/lib/libzfscommon/include/sys/zap_impl.h
+++ zfs+chaos4/lib/libzfscommon/include/sys/zap_impl.h
@@ -210,6 +210,7 @@ int fzap_add_cd(zap_name_t *zn,
uint64_t integer_size, uint64_t num_integers,
const void *val, uint32_t cd, dmu_tx_t *tx);
void fzap_upgrade(zap_t *zap, dmu_tx_t *tx);
+int fzap_cursor_move_to_key(zap_cursor_t *zc, zap_name_t *zn);
#ifdef __cplusplus
}
Index: zfs+chaos4/lib/libzpool/zap.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/zap.c
+++ zfs+chaos4/lib/libzpool/zap.c
@@ -1029,6 +1029,30 @@ zap_stats_ptrtbl(zap_t *zap, uint64_t *t
}
}
+int fzap_cursor_move_to_key(zap_cursor_t *zc, zap_name_t *zn)
+{
+ int err;
+ zap_leaf_t *l;
+ zap_entry_handle_t zeh;
+ uint64_t hash;
+
+ if (zn->zn_name_orij && strlen(zn->zn_name_orij) > ZAP_MAXNAMELEN)
+ return (E2BIG);
+
+ err = zap_deref_leaf(zc->zc_zap, zn->zn_hash, NULL, RW_READER, &l);
+ if (err != 0)
+ return (err);
+
+ err = zap_leaf_lookup(l, zn, &zeh);
+ if (err != 0)
+ return (err);
+
+ zc->zc_leaf = l;
+ zc->zc_hash = zeh.zeh_hash;
+ zc->zc_cd = zeh.zeh_cd;
+ return 0;
+}
+
void
fzap_get_stats(zap_t *zap, zap_stats_t *zs)
{
Index: zfs+chaos4/lib/libzpool/zap_micro.c
===================================================================
--- zfs+chaos4.orig/lib/libzpool/zap_micro.c
+++ zfs+chaos4/lib/libzpool/zap_micro.c
@@ -1045,6 +1045,45 @@ zap_cursor_advance(zap_cursor_t *zc)
}
}
+int zap_cursor_move_to_key(zap_cursor_t *zc, const char *name, matchtype_t mt)
+{
+ int err = 0;
+ mzap_ent_t *mze;
+ zap_name_t *zn;
+
+ if (zc->zc_zap == NULL) {
+ err = zap_lockdir(zc->zc_objset, zc->zc_zapobj, NULL,
+ RW_READER, TRUE, FALSE, &zc->zc_zap);
+ if (err)
+ return (err);
+ } else {
+ rw_enter(&zc->zc_zap->zap_rwlock, RW_READER);
+ }
+
+ zn = zap_name_alloc(zc->zc_zap, name, mt);
+ if (zn == NULL) {
+ rw_exit(&zc->zc_zap->zap_rwlock);
+ return (ENOTSUP);
+ }
+
+ if (!zc->zc_zap->zap_ismicro) {
+ err = fzap_cursor_move_to_key(zc, zn);
+ } else {
+ mze = mze_find(zn);
+ if (mze == NULL) {
+ err = (ENOENT);
+ goto out;
+ }
+ zc->zc_hash = mze->mze_hash;
+ zc->zc_cd = mze->mze_phys.mze_cd;
+ }
+
+out:
+ zap_name_free(zn);
+ rw_exit(&zc->zc_zap->zap_rwlock);
+ return (err);
+}
+
int
zap_get_stats(objset_t *os, uint64_t zapobj, zap_stats_t *zs)
{