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OpenZFS 7431 - ZFS Channel Programs

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Authored by: Chris Williamson <chris.williamson@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>
Ported-by: Don Brady <don.brady@delphix.com>
Ported-by: John Kennedy <john.kennedy@delphix.com>

OpenZFS-issue: https://www.illumos.org/issues/7431
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/dfc11533

Porting Notes:
* The CLI long option arguments for '-t' and '-m' don't parse on linux
* Switched from kmem_alloc to vmem_alloc in zcp_lua_alloc
* Lua implementation is built as its own module (zlua.ko)
* Lua headers consumed directly by zfs code moved to 'include/sys/lua/'
* There is no native setjmp/longjump available in stock Linux kernel.
  Brought over implementations from illumos and FreeBSD
* The get_temporary_prop() was adapted due to VFS platform differences
* Use of inline functions in lua parser to reduce stack usage per C call
* Skip some ZFS Test Suite ZCP tests on sparc64 to avoid stack overflow
This commit is contained in:
Chris Williamson
2018-02-08 09:16:23 -07:00
committed by Brian Behlendorf
parent 8824a7f133
commit d99a015343
179 changed files with 27056 additions and 273 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/zfs_vfsops.c
+14 -2
View File
@@ -1053,13 +1053,26 @@ zfsvfs_create(const char *osname, zfsvfs_t **zfvp)
* We claim to always be readonly so we can open snapshots;
* other ZPL code will prevent us from writing to snapshots.
*/
error = dmu_objset_own(osname, DMU_OST_ZFS, B_TRUE, B_TRUE,
zfsvfs, &os);
if (error) {
if (error != 0) {
kmem_free(zfsvfs, sizeof (zfsvfs_t));
return (error);
}
error = zfsvfs_create_impl(zfvp, zfsvfs, os);
if (error != 0) {
dmu_objset_disown(os, B_TRUE, zfsvfs);
}
return (error);
}
int
zfsvfs_create_impl(zfsvfs_t **zfvp, zfsvfs_t *zfsvfs, objset_t *os)
{
int error;
zfsvfs->z_vfs = NULL;
zfsvfs->z_sb = NULL;
zfsvfs->z_parent = zfsvfs;
@@ -1086,7 +1099,6 @@ zfsvfs_create(const char *osname, zfsvfs_t **zfvp)
error = zfsvfs_init(zfsvfs, os);
if (error != 0) {
dmu_objset_disown(os, B_TRUE, zfsvfs);
*zfvp = NULL;
kmem_free(zfsvfs, sizeof (zfsvfs_t));
return (error);