OpenE2K/qemu-e2k
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qemu-e2k/block
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Kevin Wolf 35b7f4abd5 block: Add BDRV_O_NO_SHARE for blk_new_open() 
Normally, blk_new_open() just shares all permissions. This was fine
originally when permissions only protected against uses in the same
process because no other part of the code would actually get to access
the block nodes opened with blk_new_open(). However, since we use it for
file locking now, unsharing permissions becomes desirable.

Add a new BDRV_O_NO_SHARE flag that is used in blk_new_open() to unshare
any permissions that can be unshared.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210422164344.283389-2-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-04-30 12:27:48 +02:00
..
export block/export: disable VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD for now 2021-03-19 10:15:06 +01:00
monitor block: Remove monitor command block_passwd 2021-03-23 22:31:56 +01:00
accounting.c
aio_task.c
amend.c
backup-top.c block/backup-top: drop .active 2021-04-30 12:27:48 +02:00
backup-top.h qapi: backup: add perf.use-copy-range parameter 2021-01-26 14:36:37 +01:00
backup.c backup: Remove nodes from job in .clean() 2021-03-08 14:55:18 +01:00
blkdebug.c block: check return value of bdrv_open_child and drop error propagation 2021-03-08 15:07:09 -06:00
blklogwrites.c block: check return value of bdrv_open_child and drop error propagation 2021-03-08 15:07:09 -06:00
blkreplay.c block: check return value of bdrv_open_child and drop error propagation 2021-03-08 15:07:09 -06:00
blkverify.c block: check return value of bdrv_open_child and drop error propagation 2021-03-08 15:07:09 -06:00
block-backend.c block: Add BDRV_O_NO_SHARE for blk_new_open() 2021-04-30 12:27:48 +02:00
block-copy.c block/block-copy: drop unused argument of block_copy() 2021-01-26 14:36:37 +01:00
block-gen.h
bochs.c
cloop.c
commit.c block: bdrv_append(): don't consume reference 2021-04-30 12:27:47 +02:00
copy-on-read.c copy-on-read: skip non-guest reads if no copy needed 2021-01-26 14:36:37 +01:00
copy-on-read.h copy-on-read: add filter drop function 2021-01-26 11:26:54 +01:00
coroutines.h
create.c
crypto.c block: add bdrv_co_delete_file_noerr 2021-02-15 15:10:14 +01:00
crypto.h
curl.c curl: Disconnect sockets from CURLState 2021-03-19 10:15:06 +01:00
dirty-bitmap.c block: remove dirty bitmaps 'status' field 2021-03-18 09:22:55 +00:00
dmg-bz2.c
dmg-lzfse.c
dmg.c
dmg.h
file-posix.c block: bdrv_reopen_multiple: refresh permissions on updated graph 2021-04-30 12:27:48 +02:00
file-win32.c
filter-compress.c
gluster.c qapi: More complex uses of QAPI_LIST_APPEND 2021-01-28 08:08:45 +01:00
io_uring.c
io.c block: make bdrv_refresh_limits() to be a transaction action 2021-04-30 12:27:48 +02:00
iscsi-opts.c
iscsi.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
linux-aio.c
meson.build parallels: support bitmap extension for read-only mode 2021-03-08 14:56:55 +01:00
mirror.c block: bdrv_append(): don't consume reference 2021-04-30 12:27:47 +02:00
nbd.c block/nbd: fix possible use after free of s->connect_thread 2021-04-13 15:35:12 +02:00
nfs.c
null.c
nvme.c block/nvme: Trace NVMe spec version supported by the controller 2021-02-02 17:05:38 +01:00
parallels-ext.c parallels: support bitmap extension for read-only mode 2021-03-08 14:56:55 +01:00
parallels.c parallels: support bitmap extension for read-only mode 2021-03-08 14:56:55 +01:00
parallels.h parallels: support bitmap extension for read-only mode 2021-03-08 14:56:55 +01:00
preallocate.c
qapi-sysemu.c
qapi.c block: remove 'dirty-bitmaps' field from 'BlockInfo' struct 2021-03-18 09:22:55 +00:00
qcow2-bitmap.c nbd patches for 2021-03-09 2021-03-11 13:57:08 +00:00
qcow2-cache.c
qcow2-cluster.c
qcow2-refcount.c
qcow2-snapshot.c
qcow2-threads.c
qcow2.c qcow2: Force preallocation with data-file-raw 2021-03-30 13:02:10 +02:00
qcow2.h block/qcow2-bitmap: return status from qcow2_store_persistent_dirty_bitmaps 2021-03-08 16:03:21 -06:00
qcow.c
qed-check.c
qed-cluster.c
qed-l2-cache.c
qed-table.c
qed.c block/qed: bdrv_qed_do_open: deal with errp 2021-03-08 16:03:32 -06:00
qed.h
quorum.c block: check return value of bdrv_open_child and drop error propagation 2021-03-08 15:07:09 -06:00
raw-format.c block/raw-format: implement .bdrv_cancel_in_flight handler 2021-02-12 09:45:18 -06:00
rbd.c block/rbd: fix memory leak in qemu_rbd_co_create_opts() 2021-04-09 18:00:29 +02:00
replication.c qapi: backup: add max-chunk and max-workers to x-perf struct 2021-01-26 14:36:37 +01:00
sheepdog.c
snapshot.c block: rename and alter bdrv_all_find_snapshot semantics 2021-02-08 11:19:51 +00:00
ssh.c
stream.c stream: Don't crash when node permission is denied 2021-03-19 10:15:06 +01:00
throttle-groups.c block/throttle-groups: throttle_group_co_io_limits_intercept(): 64bit bytes 2021-02-03 08:14:00 -06:00
throttle.c
trace-events block/io: use int64_t bytes in copy_range 2021-02-03 08:17:12 -06:00
trace.h
vdi.c block/vdi: Don't assume that blocks are larger than VdiHeader 2021-03-31 10:44:21 +01:00
vhdx-endian.c
vhdx-log.c
vhdx.c
vhdx.h
vmdk.c qapi: Use QAPI_LIST_APPEND in trivial cases 2021-01-28 08:08:45 +01:00
vpc.c block/vpc: Use sizeof() instead of HEADER_SIZE for footer size 2020-12-18 12:43:30 +01:00
vvfat.c
win32-aio.c
write-threshold.c