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[BTRFS] Upgrade to 1.1

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CORE-15452
This commit is contained in:
Pierre Schweitzer 2018-12-16 12:03:16 +01:00
parent e8d16d0a7d
commit eb7fbc253f
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GPG key ID: 7545556C3D585B0B
61 changed files with 22605 additions and 596 deletions
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21
drivers/filesystems/btrfs/fastio.c
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@ -296,11 +296,21 @@ static NTSTATUS fast_io_acquire_for_mod_write(PFILE_OBJECT FileObject, PLARGE_IN
if (!fcb)
return STATUS_INVALID_PARAMETER;
*ResourceToRelease = fcb->Header.PagingIoResource;
// Make sure we don't get interrupted by the flush thread, which can cause a deadlock
if (!ExAcquireResourceSharedLite(*ResourceToRelease, FALSE))
if (!ExAcquireResourceSharedLite(&fcb->Vcb->tree_lock, FALSE))
return STATUS_CANT_WAIT;
// Ideally this would be PagingIoResource, but that doesn't play well with copy-on-write,
// as we can't guarantee that we won't need to do any reallocations.
*ResourceToRelease = fcb->Header.Resource;
if (!ExAcquireResourceExclusiveLite(*ResourceToRelease, FALSE)) {
ExReleaseResourceLite(&fcb->Vcb->tree_lock);
return STATUS_CANT_WAIT;
}
return STATUS_SUCCESS;
}
@ -310,11 +320,16 @@ static NTSTATUS NTAPI fast_io_release_for_mod_write(PFILE_OBJECT FileObject, str
#else
static NTSTATUS fast_io_release_for_mod_write(PFILE_OBJECT FileObject, struct _ERESOURCE *ResourceToRelease, PDEVICE_OBJECT DeviceObject) {
#endif
UNUSED(FileObject);
fcb* fcb;
UNUSED(DeviceObject);
fcb = FileObject->FsContext;
ExReleaseResourceLite(ResourceToRelease);
ExReleaseResourceLite(&fcb->Vcb->tree_lock);
return STATUS_SUCCESS;
}