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block: Request child permissions in filter drivers 

All callers will have to request permissions for all of their child
nodes. Block drivers that act as simply filters can use the default
implementation of .bdrv_child_perm().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Fam Zheng <famz@redhat.com>
This commit is contained in:
Kevin Wolf 2016-12-15 12:28:58 +01:00
parent 6a1b9ee152
commit d7010dfb68
6 changed files with 8 additions and 0 deletions
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2
block/blkdebug.c
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@ -734,6 +734,8 @@ static BlockDriver bdrv_blkdebug = {
.bdrv_file_open = blkdebug_open,
.bdrv_close = blkdebug_close,
.bdrv_reopen_prepare = blkdebug_reopen_prepare,
.bdrv_child_perm = bdrv_filter_default_perms,
.bdrv_getlength = blkdebug_getlength,
.bdrv_truncate = blkdebug_truncate,
.bdrv_refresh_filename = blkdebug_refresh_filename,

1
block/blkreplay.c
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@ -137,6 +137,7 @@ static BlockDriver bdrv_blkreplay = {
.bdrv_file_open = blkreplay_open,
.bdrv_close = blkreplay_close,
.bdrv_child_perm = bdrv_filter_default_perms,
.bdrv_getlength = blkreplay_getlength,
.bdrv_co_preadv = blkreplay_co_preadv,

1
block/blkverify.c
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@ -320,6 +320,7 @@ static BlockDriver bdrv_blkverify = {
.bdrv_parse_filename = blkverify_parse_filename,
.bdrv_file_open = blkverify_open,
.bdrv_close = blkverify_close,
.bdrv_child_perm = bdrv_filter_default_perms,
.bdrv_getlength = blkverify_getlength,
.bdrv_refresh_filename = blkverify_refresh_filename,

2
block/quorum.c
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@ -1133,6 +1133,8 @@ static BlockDriver bdrv_quorum = {
.bdrv_add_child = quorum_add_child,
.bdrv_del_child = quorum_del_child,
.bdrv_child_perm = bdrv_filter_default_perms,
.is_filter = true,
.bdrv_recurse_is_first_non_filter = quorum_recurse_is_first_non_filter,
};

1
block/raw-format.c
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@ -467,6 +467,7 @@ BlockDriver bdrv_raw = {
.bdrv_reopen_abort = &raw_reopen_abort,
.bdrv_open = &raw_open,
.bdrv_close = &raw_close,
.bdrv_child_perm = bdrv_filter_default_perms,
.bdrv_create = &raw_create,
.bdrv_co_preadv = &raw_co_preadv,
.bdrv_co_pwritev = &raw_co_pwritev,

1
block/replication.c
View File

@ -660,6 +660,7 @@ BlockDriver bdrv_replication = {
.bdrv_open = replication_open,
.bdrv_close = replication_close,
.bdrv_child_perm = bdrv_filter_default_perms,
.bdrv_getlength = replication_getlength,
.bdrv_co_readv = replication_co_readv,