diff options
12 files changed, 232 insertions, 85 deletions
diff --git a/cddl/contrib/opensolaris/cmd/zfs/zfs-program.8 b/cddl/contrib/opensolaris/cmd/zfs/zfs-program.8 index 0ede564..f7587a5 100644 --- a/cddl/contrib/opensolaris/cmd/zfs/zfs-program.8 +++ b/cddl/contrib/opensolaris/cmd/zfs/zfs-program.8 @@ -18,6 +18,7 @@ .Nd executes ZFS channel programs .Sh SYNOPSIS .Cm zfs program +.Op Fl n .Op Fl t Ar instruction-limit .Op Fl m Ar memory-limit .Ar pool @@ -45,6 +46,14 @@ will be run on and any attempts to access or modify other pools will cause an error. .Sh OPTIONS .Bl -tag -width "-t" +.It Fl n +Executes a read-only channel program, which runs faster. +The program cannot change on-disk state by calling functions from the +zfs.sync submodule. +The program can be used to gather information such as properties and +determining if changes would succeed (zfs.check.*). +Without this flag, all pending changes must be synced to disk before a +channel program can complete. .It Fl t Ar instruction-limit Execution time limit, in number of Lua instructions to execute. If a channel program executes more than the specified number of instructions, diff --git a/cddl/contrib/opensolaris/cmd/zfs/zfs.8 b/cddl/contrib/opensolaris/cmd/zfs/zfs.8 index d52b30f..ff43798 100644 --- a/cddl/contrib/opensolaris/cmd/zfs/zfs.8 +++ b/cddl/contrib/opensolaris/cmd/zfs/zfs.8 @@ -287,6 +287,7 @@ .Op Ar snapshot Ns | Ns Ar filesystem .Nm .Cm program +.Op Fl n .Op Fl t Ar timeout .Op Fl m Ar memory_limit .Ar pool script @@ -3294,6 +3295,7 @@ Display the path's inode change time as the first column of output. .It Xo .Nm .Cm program +.Op Fl n .Op Fl t Ar timeout .Op Fl m Ar memory_limit .Ar pool script @@ -3316,6 +3318,14 @@ For full documentation of the ZFS channel program interface, see the manual page for .Xr zfs-program 8 . .Bl -tag -width indent +.It Fl n +Executes a read-only channel program, which runs faster. +The program cannot change on-disk state by calling functions from +the zfs.sync submodule. +The program can be used to gather information such as properties and +determining if changes would succeed (zfs.check.*). +Without this flag, all pending changes must be synced to disk before +a channel program can complete. .It Fl t Ar timeout Execution time limit, in milliseconds. If a channel program executes for longer than the provided timeout, it will diff --git a/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c b/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c index 4727b9f..80e5163 100644 --- a/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c +++ b/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c @@ -345,7 +345,7 @@ get_usage(zfs_help_t idx) case HELP_BOOKMARK: return (gettext("\tbookmark <snapshot> <bookmark>\n")); case HELP_CHANNEL_PROGRAM: - return (gettext("\tprogram [-t <instruction limit>] " + return (gettext("\tprogram [-n] [-t <instruction limit>] " "[-m <memory limit (b)>] <pool> <program file> " "[lua args...]\n")); } @@ -7131,11 +7131,12 @@ zfs_do_channel_program(int argc, char **argv) nvlist_t *outnvl; uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT; uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT; + boolean_t sync_flag = B_TRUE; zpool_handle_t *zhp; /* check options */ while (-1 != - (c = getopt(argc, argv, "t:(instr-limit)m:(memory-limit)"))) { + (c = getopt(argc, argv, "nt:(instr-limit)m:(memory-limit)"))) { switch (c) { case 't': case 'm': { @@ -7173,6 +7174,10 @@ zfs_do_channel_program(int argc, char **argv) } break; } + case 'n': { + sync_flag = B_FALSE; + break; + } case '?': (void) fprintf(stderr, gettext("invalid option '%c'\n"), optopt); @@ -7244,8 +7249,13 @@ zfs_do_channel_program(int argc, char **argv) nvlist_t *argnvl = fnvlist_alloc(); fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, argv + 2, argc - 2); - ret = lzc_channel_program(poolname, progbuf, instrlimit, memlimit, - argnvl, &outnvl); + if (sync_flag) { + ret = lzc_channel_program(poolname, progbuf, + instrlimit, memlimit, argnvl, &outnvl); + } else { + ret = lzc_channel_program_nosync(poolname, progbuf, + instrlimit, memlimit, argnvl, &outnvl); + } if (ret != 0) { /* diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c index b6355b5..d49cb13 100644 --- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c +++ b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c @@ -2381,7 +2381,7 @@ zcp_check(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t intval, fnvlist_add_string(argnvl, "dataset", zhp->zfs_name); fnvlist_add_string(argnvl, "property", zfs_prop_to_name(prop)); - error = lzc_channel_program(poolname, program, + error = lzc_channel_program_nosync(poolname, program, 10 * 1000 * 1000, 10 * 1024 * 1024, argnvl, &outnvl); if (error == 0) { diff --git a/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c b/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c index ec32486..6766083 100644 --- a/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c +++ b/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c @@ -918,6 +918,25 @@ lzc_destroy_bookmarks(nvlist_t *bmarks, nvlist_t **errlist) return (error); } +static int +lzc_channel_program_impl(const char *pool, const char *program, boolean_t sync, + uint64_t instrlimit, uint64_t memlimit, nvlist_t *argnvl, nvlist_t **outnvl) +{ + int error; + nvlist_t *args; + + args = fnvlist_alloc(); + fnvlist_add_string(args, ZCP_ARG_PROGRAM, program); + fnvlist_add_nvlist(args, ZCP_ARG_ARGLIST, argnvl); + fnvlist_add_boolean_value(args, ZCP_ARG_SYNC, sync); + fnvlist_add_uint64(args, ZCP_ARG_INSTRLIMIT, instrlimit); + fnvlist_add_uint64(args, ZCP_ARG_MEMLIMIT, memlimit); + error = lzc_ioctl(ZFS_IOC_CHANNEL_PROGRAM, pool, args, outnvl); + fnvlist_free(args); + + return (error); +} + /* * Executes a channel program. * @@ -955,16 +974,26 @@ int lzc_channel_program(const char *pool, const char *program, uint64_t instrlimit, uint64_t memlimit, nvlist_t *argnvl, nvlist_t **outnvl) { - int error; - nvlist_t *args; - - args = fnvlist_alloc(); - fnvlist_add_string(args, ZCP_ARG_PROGRAM, program); - fnvlist_add_nvlist(args, ZCP_ARG_ARGLIST, argnvl); - fnvlist_add_uint64(args, ZCP_ARG_INSTRLIMIT, instrlimit); - fnvlist_add_uint64(args, ZCP_ARG_MEMLIMIT, memlimit); - error = lzc_ioctl(ZFS_IOC_CHANNEL_PROGRAM, pool, args, outnvl); - fnvlist_free(args); + return (lzc_channel_program_impl(pool, program, B_TRUE, instrlimit, + memlimit, argnvl, outnvl)); +} - return (error); +/* + * Executes a read-only channel program. + * + * A read-only channel program works programmatically the same way as a + * normal channel program executed with lzc_channel_program(). The only + * difference is it runs exclusively in open-context and therefore can + * return faster. The downside to that, is that the program cannot change + * on-disk state by calling functions from the zfs.sync submodule. + * + * The return values of this function (and their meaning) are exactly the + * same as the ones described in lzc_channel_program(). + */ +int +lzc_channel_program_nosync(const char *pool, const char *program, + uint64_t timeout, uint64_t memlimit, nvlist_t *argnvl, nvlist_t **outnvl) +{ + return (lzc_channel_program_impl(pool, program, B_FALSE, timeout, + memlimit, argnvl, outnvl)); } diff --git a/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h b/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h index 234dda4..c61ad52 100644 --- a/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h +++ b/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h @@ -86,8 +86,10 @@ boolean_t lzc_exists(const char *); int lzc_rollback(const char *, char *, int); int lzc_rollback_to(const char *, const char *); -int lzc_channel_program(const char *, const char *, uint64_t, uint64_t, - nvlist_t *, nvlist_t **); +int lzc_channel_program(const char *, const char *, uint64_t, + uint64_t, nvlist_t *, nvlist_t **); +int lzc_channel_program_nosync(const char *, const char *, uint64_t, + uint64_t, nvlist_t *, nvlist_t **); #ifdef __cplusplus } diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_destroy.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_destroy.c index d11d8c5..c8cf60d 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_destroy.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_destroy.c @@ -542,6 +542,7 @@ dsl_destroy_snapshots_nvl(nvlist_t *snaps, boolean_t defer, nvlist_t *result = fnvlist_alloc(); int error = zcp_eval(nvpair_name(nvlist_next_nvpair(snaps, NULL)), program, + B_TRUE, 0, zfs_lua_max_memlimit, nvlist_next_nvpair(wrapper, NULL), result); diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zcp.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zcp.h index 2e4ad7a..5713a74 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zcp.h +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zcp.h @@ -38,20 +38,25 @@ extern uint64_t zfs_lua_max_memlimit; int zcp_argerror(lua_State *, int, const char *, ...); -int zcp_eval(const char *, const char *, uint64_t, uint64_t, nvpair_t *, - nvlist_t *); +int zcp_eval(const char *, const char *, boolean_t, uint64_t, uint64_t, + nvpair_t *, nvlist_t *); int zcp_load_list_lib(lua_State *); int zcp_load_synctask_lib(lua_State *, boolean_t); typedef void (zcp_cleanup_t)(void *); +typedef struct zcp_cleanup_handler { + zcp_cleanup_t *zch_cleanup_func; + void *zch_cleanup_arg; + list_node_t zch_node; +} zcp_cleanup_handler_t; typedef struct zcp_run_info { dsl_pool_t *zri_pool; /* - * An estimate of the total ammount of space consumed by all + * An estimate of the total amount of space consumed by all * synctasks we have successfully performed so far in this * channel program. Used to generate ENOSPC errors for syncfuncs. */ @@ -89,16 +94,21 @@ typedef struct zcp_run_info { boolean_t zri_timed_out; /* - * The currently registered cleanup function, which will be called - * with the stored argument if a fatal error occurs. + * Boolean indicating whether or not we are running in syncing + * context. */ - zcp_cleanup_t *zri_cleanup; - void *zri_cleanup_arg; + boolean_t zri_sync; + + /* + * List of currently registered cleanup handlers, which will be + * triggered in the event of a fatal error. + */ + list_t zri_cleanup_handlers; } zcp_run_info_t; zcp_run_info_t *zcp_run_info(lua_State *); -void zcp_register_cleanup(lua_State *, zcp_cleanup_t, void *); -void zcp_clear_cleanup(lua_State *); +zcp_cleanup_handler_t *zcp_register_cleanup(lua_State *, zcp_cleanup_t, void *); +void zcp_deregister_cleanup(lua_State *, zcp_cleanup_handler_t *); void zcp_cleanup(lua_State *); /* diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp.c index 56ccbf1..1e76960 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp.c @@ -137,13 +137,6 @@ typedef struct zcp_eval_arg { uint64_t ea_instrlimit; } zcp_eval_arg_t; -/*ARGSUSED*/ -static int -zcp_eval_check(void *arg, dmu_tx_t *tx) -{ - return (0); -} - /* * The outer-most error callback handler for use with lua_pcall(). On * error Lua will call this callback with a single argument that @@ -187,41 +180,45 @@ zcp_argerror(lua_State *state, int narg, const char *msg, ...) * * If an error occurs, the cleanup function will be invoked exactly once and * then unreigstered. + * + * Returns the registered cleanup handler so the caller can deregister it + * if no error occurs. */ -void +zcp_cleanup_handler_t * zcp_register_cleanup(lua_State *state, zcp_cleanup_t cleanfunc, void *cleanarg) { zcp_run_info_t *ri = zcp_run_info(state); - /* - * A cleanup function should always be explicitly removed before - * installing a new one to avoid accidental clobbering. - */ - ASSERT3P(ri->zri_cleanup, ==, NULL); - ri->zri_cleanup = cleanfunc; - ri->zri_cleanup_arg = cleanarg; + zcp_cleanup_handler_t *zch = kmem_alloc(sizeof (*zch), KM_SLEEP); + zch->zch_cleanup_func = cleanfunc; + zch->zch_cleanup_arg = cleanarg; + list_insert_head(&ri->zri_cleanup_handlers, zch); + + return (zch); } void -zcp_clear_cleanup(lua_State *state) +zcp_deregister_cleanup(lua_State *state, zcp_cleanup_handler_t *zch) { zcp_run_info_t *ri = zcp_run_info(state); - - ri->zri_cleanup = NULL; - ri->zri_cleanup_arg = NULL; + list_remove(&ri->zri_cleanup_handlers, zch); + kmem_free(zch, sizeof (*zch)); } /* - * If it exists, execute the currently set cleanup function then unregister it. + * Execute the currently registered cleanup handlers then free them and + * destroy the handler list. */ void zcp_cleanup(lua_State *state) { zcp_run_info_t *ri = zcp_run_info(state); - if (ri->zri_cleanup != NULL) { - ri->zri_cleanup(ri->zri_cleanup_arg); - zcp_clear_cleanup(state); + for (zcp_cleanup_handler_t *zch = + list_remove_head(&ri->zri_cleanup_handlers); zch != NULL; + zch = list_remove_head(&ri->zri_cleanup_handlers)) { + zch->zch_cleanup_func(zch->zch_cleanup_arg); + kmem_free(zch, sizeof (*zch)); } } @@ -822,19 +819,12 @@ zcp_panic_cb(lua_State *state) } static void -zcp_eval_sync(void *arg, dmu_tx_t *tx) +zcp_eval_impl(dmu_tx_t *tx, boolean_t sync, zcp_eval_arg_t *evalargs) { int err; zcp_run_info_t ri; - zcp_eval_arg_t *evalargs = arg; lua_State *state = evalargs->ea_state; - /* - * Open context should have setup the stack to contain: - * 1: Error handler callback - * 2: Script to run (converted to a Lua function) - * 3: nvlist input to function (converted to Lua table or nil) - */ VERIFY3U(3, ==, lua_gettop(state)); /* @@ -847,8 +837,9 @@ zcp_eval_sync(void *arg, dmu_tx_t *tx) ri.zri_cred = evalargs->ea_cred; ri.zri_tx = tx; ri.zri_timed_out = B_FALSE; - ri.zri_cleanup = NULL; - ri.zri_cleanup_arg = NULL; + ri.zri_sync = sync; + list_create(&ri.zri_cleanup_handlers, sizeof (zcp_cleanup_handler_t), + offsetof(zcp_cleanup_handler_t, zch_node)); ri.zri_curinstrs = 0; ri.zri_maxinstrs = evalargs->ea_instrlimit; @@ -885,10 +876,10 @@ zcp_eval_sync(void *arg, dmu_tx_t *tx) /* * Remove the error handler callback from the stack. At this point, - * if there is a cleanup function registered, then it was registered - * but never run or removed, which should never occur. + * there shouldn't be any cleanup handler registered in the handler + * list (zri_cleanup_handlers), regardless of whether it ran or not. */ - ASSERT3P(ri.zri_cleanup, ==, NULL); + list_destroy(&ri.zri_cleanup_handlers); lua_remove(state, 1); switch (err) { @@ -970,9 +961,73 @@ zcp_eval_sync(void *arg, dmu_tx_t *tx) } } +static void +zcp_pool_error(zcp_eval_arg_t *evalargs, const char *poolname) +{ + evalargs->ea_result = SET_ERROR(ECHRNG); + (void) lua_pushfstring(evalargs->ea_state, "Could not open pool: %s", + poolname); + zcp_convert_return_values(evalargs->ea_state, evalargs->ea_outnvl, + ZCP_RET_ERROR, evalargs); + +} + +static void +zcp_eval_sync(void *arg, dmu_tx_t *tx) +{ + zcp_eval_arg_t *evalargs = arg; + + /* + * Open context should have setup the stack to contain: + * 1: Error handler callback + * 2: Script to run (converted to a Lua function) + * 3: nvlist input to function (converted to Lua table or nil) + */ + VERIFY3U(3, ==, lua_gettop(evalargs->ea_state)); + + zcp_eval_impl(tx, B_TRUE, evalargs); +} + +static void +zcp_eval_open(zcp_eval_arg_t *evalargs, const char *poolname) +{ + + int error; + dsl_pool_t *dp; + dmu_tx_t *tx; + + /* + * See comment from the same assertion in zcp_eval_sync(). + */ + VERIFY3U(3, ==, lua_gettop(evalargs->ea_state)); + + error = dsl_pool_hold(poolname, FTAG, &dp); + if (error != 0) { + zcp_pool_error(evalargs, poolname); + return; + } + + /* + * As we are running in open-context, we have no transaction associated + * with the channel program. At the same time, functions from the + * zfs.check submodule need to be associated with a transaction as + * they are basically dry-runs of their counterparts in the zfs.sync + * submodule. These functions should be able to run in open-context. + * Therefore we create a new transaction that we later abort once + * the channel program has been evaluated. + */ + tx = dmu_tx_create_dd(dp->dp_mos_dir); + + zcp_eval_impl(tx, B_FALSE, evalargs); + + dmu_tx_abort(tx); + + dsl_pool_rele(dp, FTAG); +} + int -zcp_eval(const char *poolname, const char *program, uint64_t instrlimit, - uint64_t memlimit, nvpair_t *nvarg, nvlist_t *outnvl) +zcp_eval(const char *poolname, const char *program, boolean_t sync, + uint64_t instrlimit, uint64_t memlimit, nvpair_t *nvarg, nvlist_t *outnvl) { int err; lua_State *state; @@ -1083,9 +1138,14 @@ zcp_eval(const char *poolname, const char *program, uint64_t instrlimit, evalargs.ea_outnvl = outnvl; evalargs.ea_result = 0; - VERIFY0(dsl_sync_task(poolname, zcp_eval_check, - zcp_eval_sync, &evalargs, 0, ZFS_SPACE_CHECK_NONE)); - + if (sync) { + err = dsl_sync_task(poolname, NULL, + zcp_eval_sync, &evalargs, 0, ZFS_SPACE_CHECK_NONE); + if (err != 0) + zcp_pool_error(&evalargs, poolname); + } else { + zcp_eval_open(&evalargs, poolname); + } lua_close(state); return (evalargs.ea_result); diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp_synctask.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp_synctask.c index f63773b..0812d24 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp_synctask.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp_synctask.c @@ -55,6 +55,10 @@ typedef struct zcp_synctask_info { * * If 'sync' is false, executes a dry run and returns the error code. * + * If we are not running in syncing context and we are not doing a dry run + * (meaning we are running a zfs.sync function in open-context) then we + * return a Lua error. + * * This function also handles common fatal error cases for channel program * library functions. If a fatal error occurs, err_dsname will be the dataset * name reported in error messages, if supplied. @@ -70,6 +74,13 @@ zcp_sync_task(lua_State *state, dsl_checkfunc_t *checkfunc, if (!sync) return (err); + if (!ri->zri_sync) { + return (luaL_error(state, "running functions from the zfs.sync " + "submodule requires passing sync=TRUE to " + "lzc_channel_program() (i.e. do not specify the \"-n\" " + "command line argument)")); + } + if (err == 0) { syncfunc(arg, ri->zri_tx); } else if (err == EIO) { @@ -234,6 +245,15 @@ zcp_synctask_snapshot(lua_State *state, boolean_t sync, nvlist_t *err_details) zcp_run_info_t *ri = zcp_run_info(state); /* + * On old pools, the ZIL must not be active when a snapshot is created, + * but we can't suspend the ZIL because we're already in syncing + * context. + */ + if (spa_version(ri->zri_pool->dp_spa) < SPA_VERSION_FAST_SNAP) { + return (ENOTSUP); + } + + /* * We only allow for a single snapshot rather than a list, so the * error list output is unnecessary. */ @@ -243,33 +263,23 @@ zcp_synctask_snapshot(lua_State *state, boolean_t sync, nvlist_t *err_details) ddsa.ddsa_snaps = fnvlist_alloc(); fnvlist_add_boolean(ddsa.ddsa_snaps, dsname); - /* - * On old pools, the ZIL must not be active when a snapshot is created, - * but we can't suspend the ZIL because we're already in syncing - * context. - */ - if (spa_version(ri->zri_pool->dp_spa) < SPA_VERSION_FAST_SNAP) { - return (ENOTSUP); - } + zcp_cleanup_handler_t *zch = zcp_register_cleanup(state, + (zcp_cleanup_t *)&fnvlist_free, ddsa.ddsa_snaps); err = zcp_sync_task(state, dsl_dataset_snapshot_check, dsl_dataset_snapshot_sync, &ddsa, sync, dsname); + zcp_deregister_cleanup(state, zch); fnvlist_free(ddsa.ddsa_snaps); return (err); } -void -zcp_synctask_wrapper_cleanup(void *arg) -{ - fnvlist_free(arg); -} - static int zcp_synctask_wrapper(lua_State *state) { int err; + zcp_cleanup_handler_t *zch; int num_ret = 1; nvlist_t *err_details = fnvlist_alloc(); @@ -277,7 +287,8 @@ zcp_synctask_wrapper(lua_State *state) * Make sure err_details is properly freed, even if a fatal error is * thrown during the synctask. */ - zcp_register_cleanup(state, &zcp_synctask_wrapper_cleanup, err_details); + zch = zcp_register_cleanup(state, + (zcp_cleanup_t *)&fnvlist_free, err_details); zcp_synctask_info_t *info = lua_touserdata(state, lua_upvalueindex(1)); boolean_t sync = lua_toboolean(state, lua_upvalueindex(2)); @@ -317,7 +328,7 @@ zcp_synctask_wrapper(lua_State *state) num_ret++; } - zcp_clear_cleanup(state); + zcp_deregister_cleanup(state, zch); fnvlist_free(err_details); return (num_ret); diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c index b38709a..c54cc1c 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c @@ -3777,11 +3777,15 @@ zfs_ioc_channel_program(const char *poolname, nvlist_t *innvl, { char *program; uint64_t instrlimit, memlimit; + boolean_t sync_flag; nvpair_t *nvarg = NULL; if (0 != nvlist_lookup_string(innvl, ZCP_ARG_PROGRAM, &program)) { return (EINVAL); } + if (0 != nvlist_lookup_boolean_value(innvl, ZCP_ARG_SYNC, &sync_flag)) { + sync_flag = B_TRUE; + } if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_INSTRLIMIT, &instrlimit)) { instrlimit = ZCP_DEFAULT_INSTRLIMIT; } @@ -3797,7 +3801,7 @@ zfs_ioc_channel_program(const char *poolname, nvlist_t *innvl, if (memlimit == 0 || memlimit > zfs_lua_max_memlimit) return (EINVAL); - return (zcp_eval(poolname, program, instrlimit, memlimit, + return (zcp_eval(poolname, program, sync_flag, instrlimit, memlimit, nvarg, outnvl)); } diff --git a/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h b/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h index bd5e024..19de812 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h +++ b/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h @@ -984,6 +984,7 @@ typedef enum { */ #define ZCP_ARG_PROGRAM "program" #define ZCP_ARG_ARGLIST "arg" +#define ZCP_ARG_SYNC "sync" #define ZCP_ARG_INSTRLIMIT "instrlimit" #define ZCP_ARG_MEMLIMIT "memlimit" |
