nfs4: Fix double free when NFS4Inode::ReadDirOnce fails

nfs4: fix incrementing owner sequence id in some cases

If in a compound request an error occurs before the operation that takes
sequence id is executed (e.g. OPEN or LOCK) do not increment sequence id
regardless of the error code.

nfs4: use exponential backoff when the server ask to wait

nfs4: support hard links properly

The main purpose of this patch is to prevent VFS from removing a vnode to early
what might have happened if the NFS client knew it had more than one name but
then one of them was deleted. Moreover, all discovered and still valid names
are stored what may be useful in proper file handle recovery when they are
volatile.

This patch fixes both #9558 and #9561.

nfs4: update vnode objects and cached data when rename overrides a file
* this patch also fixes unnecessary cache invalidation when a file is renamed
without changing its parent directory

nfs4: Fix memory leaks in case of errors while reading a directory

This fixes CID 991497.

nfs4: Remove RequestBuilder::ReadDir() count argument

The argument is ignored anyway. This fixes CID 991593.

nfs4: check for presence of FATTR4_CHANGE is not required

This fixes CID 991501.

nfs4: Fix CID 991174: improve error checking in NFS4Inode::OpenFile()

nfs4: Do not increment open owner sequence number when reusing lock owner

nfs4: Add numerous assertion checks

nfs4, dns_resolver: fix numerous style violations

nfs4: Properly handle NFS4ERR_DELAY during node rename

nfs4: Update FileInfo at rename

nfs4: Fix node removal

nfs4: Make the client more configurable

nfs4: Fix gcc4 warnings

nfs4: Get correct change value for attribute directories

nfs4: Add basic emulation of named attributes

nfs4: Setting owner and owner group at creation is not needed

nfs4: Make sure that request are properly sequenced

nfs4: Fix server reboot recovery

nfs4: Fix WriteState when state == NULL

nfs4: Add basic support for extended attributes

nfs4: Inode::GetDirSnapshot should not require OpenDirCookie

nfs4: Add attribute directory related hooks

nfs4: Implement node monitoring

nfs4: Repair O_TRUNC support

nfs4: Support delegations of created files

nfs4: Reclaim delegations after server reboot

nfs4: Use one open state per inode

nfs4: Use global open owner, check whether delegation was granted

nfs4: NFS4Object::HandleErrors needs OpenState or OpenFileCookie object

nfs4: Do not open too much files on server

nfs4: Move low level NFS4 code to Inode's base class

nfs4: Fix double free when NFS4Inode::ReadDirOnce fails

nfs4: fix incrementing owner sequence id in some cases

If in a compound request an error occurs before the operation that takes
sequence id is executed (e.g. OPEN or LOCK) do not increment sequence id
regardless of the error code.

nfs4: use exponential backoff when the server ask to wait

nfs4: support hard links properly

The main purpose of this patch is to prevent VFS from removing a vnode to early
what might have happened if the NFS client knew it had more than one name but
then one of them was deleted. Moreover, all discovered and still valid names
are stored what may be useful in proper file handle recovery when they are
volatile.

This patch fixes both #9558 and #9561.

nfs4: update vnode objects and cached data when rename overrides a file
* this patch also fixes unnecessary cache invalidation when a file is renamed
without changing its parent directory

nfs4: Fix memory leaks in case of errors while reading a directory

This fixes CID 991497.

nfs4: Remove RequestBuilder::ReadDir() count argument

The argument is ignored anyway. This fixes CID 991593.

nfs4: check for presence of FATTR4_CHANGE is not required

This fixes CID 991501.

nfs4: Fix CID 991174: improve error checking in NFS4Inode::OpenFile()

nfs4: Do not increment open owner sequence number when reusing lock owner

nfs4: Add numerous assertion checks

nfs4, dns_resolver: fix numerous style violations

nfs4: Properly handle NFS4ERR_DELAY during node rename

nfs4: Update FileInfo at rename

nfs4: Fix node removal

nfs4: Make the client more configurable

nfs4: Fix gcc4 warnings

nfs4: Get correct change value for attribute directories

nfs4: Add basic emulation of named attributes

nfs4: Setting owner and owner group at creation is not needed

nfs4: Make sure that request are properly sequenced

nfs4: Fix server reboot recovery

nfs4: Fix WriteState when state == NULL

nfs4: Add basic support for extended attributes

nfs4: Inode::GetDirSnapshot should not require OpenDirCookie

nfs4: Add attribute directory related hooks

nfs4: Implement node monitoring

nfs4: Repair O_TRUNC support

nfs4: Support delegations of created files

nfs4: Reclaim delegations after server reboot

nfs4: Use one open state per inode

nfs4: Use global open owner, check whether delegation was granted

nfs4: NFS4Object::HandleErrors needs OpenState or OpenFileCookie object

nfs4: Do not open too much files on server

nfs4: Move low level NFS4 code to Inode's base class