From 43e52eddb13d8accbd052fac9a242ce979531aa4 Mon Sep 17 00:00:00 2001 From: Brian Behlendorf Date: Thu, 9 Jun 2016 17:04:12 -0700 Subject: Implement zfs_ioc_recv_new() for OpenZFS 2605 Adds ZFS_IOC_RECV_NEW for resumable streams and preserves the legacy ZFS_IOC_RECV user/kernel interface. The new interface supports all stream options but is currently only used for resumable streams. This way updated user space utilities will interoperate with older kernel modules. ZFS_IOC_RECV_NEW is modeled after the existing ZFS_IOC_SEND_NEW handler. Non-Linux OpenZFS platforms have opted to change the legacy interface in an incompatible fashion instead of adding a new ioctl. Signed-off-by: Brian Behlendorf --- include/libzfs_core.h | 3 +++ include/sys/fs/zfs.h | 4 +++- include/sys/zfs_ioctl.h | 5 ++--- 3 files changed, 8 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/libzfs_core.h b/include/libzfs_core.h index d2d79175f..9e761004a 100644 --- a/include/libzfs_core.h +++ b/include/libzfs_core.h @@ -69,6 +69,9 @@ int lzc_receive_resumable(const char *, nvlist_t *, const char *, boolean_t, int); int lzc_receive_with_header(const char *, nvlist_t *, const char *, boolean_t, boolean_t, int, const struct dmu_replay_record *); +int lzc_receive_one(const char *, nvlist_t *, const char *, boolean_t, + boolean_t, int, const struct dmu_replay_record *, int, uint64_t *, + uint64_t *, uint64_t *, nvlist_t **); boolean_t lzc_exists(const char *); diff --git a/include/sys/fs/zfs.h b/include/sys/fs/zfs.h index 8a581eee5..e802454b9 100644 --- a/include/sys/fs/zfs.h +++ b/include/sys/fs/zfs.h @@ -232,6 +232,7 @@ typedef enum { #define ZPROP_SOURCE_VAL_RECVD "$recvd" #define ZPROP_N_MORE_ERRORS "N_MORE_ERRORS" + /* * Dataset flag implemented as a special entry in the props zap object * indicating that the dataset has received properties on or after @@ -923,7 +924,7 @@ typedef struct ddt_histogram { */ typedef enum zfs_ioc { /* - * Illumos - 70/128 numbers reserved. + * Illumos - 71/128 numbers reserved. */ ZFS_IOC_FIRST = ('Z' << 8), ZFS_IOC = ZFS_IOC_FIRST, @@ -997,6 +998,7 @@ typedef enum zfs_ioc { ZFS_IOC_BOOKMARK, ZFS_IOC_GET_BOOKMARKS, ZFS_IOC_DESTROY_BOOKMARKS, + ZFS_IOC_RECV_NEW, /* * Linux - 3/64 numbers reserved. diff --git a/include/sys/zfs_ioctl.h b/include/sys/zfs_ioctl.h index 7b751fea6..5157c6704 100644 --- a/include/sys/zfs_ioctl.h +++ b/include/sys/zfs_ioctl.h @@ -389,15 +389,14 @@ typedef struct zfs_cmd { uint64_t zc_iflags; /* internal to zfs(7fs) */ zfs_share_t zc_share; dmu_objset_stats_t zc_objset_stats; - dmu_replay_record_t zc_begin_record; + struct drr_begin zc_begin_record; zinject_record_t zc_inject_record; uint32_t zc_defer_destroy; uint32_t zc_flags; uint64_t zc_action_handle; int zc_cleanup_fd; uint8_t zc_simple; - boolean_t zc_resumable; - uint8_t zc_pad[2]; /* alignment */ + uint8_t zc_pad[3]; /* alignment */ uint64_t zc_sendobj; uint64_t zc_fromobj; uint64_t zc_createtxg; -- cgit v1.2.3