diff options
Diffstat (limited to 'cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c')
-rw-r--r-- | cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c | 51 |
1 files changed, 40 insertions, 11 deletions
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)); } |