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02ef04e432
linux/fs/nfs
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Chuck Lever 02ef04e432 NFS: Account for XDR pad of buf->pages 
Certain NFS results (eg. READLINK) might expect a data payload that
is not an exact multiple of 4 bytes. In this case, XDR encoding
is required to pad that payload so its length on the wire is a
multiple of 4 bytes. The constants that define the maximum size of
each NFS result do not appear to account for this extra word.

In each case where the data payload is to be received into pages:

- 1 word is added to the size of the receive buffer allocated by
  call_allocate

- rpc_inline_rcv_pages subtracts 1 word from @hdrsize so that the
  extra buffer space falls into the rcv_buf's tail iovec

- If buf->pagelen is word-aligned, an XDR pad is not needed and
  is thus removed from the tail

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-02-14 10:13:49 -05:00
..
blocklayout NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
filelayout pNFS: Don't allocate more pages than we need to fit a layoutget response 2018-09-30 15:35:16 -04:00
flexfilelayout SUNRPC: Add xdr_stream::rqst field 2019-02-13 11:05:50 -05:00
cache_lib.c NFS client updates for Linux 4.15 2017-11-17 14:18:00 -08:00
cache_lib.h NFS client updates for Linux 4.15 2017-11-17 14:18:00 -08:00
callback_proc.c NFSv4.2 copy do not allocate memory under the lock 2018-11-22 13:54:46 -05:00
callback_xdr.c NFS: Remove print_overflow_msg() 2019-02-13 11:53:45 -05:00
callback.c nfs: fixed broken compilation in nfs_callback_up_net() 2018-12-31 11:25:16 -05:00
callback.h NFS CB_OFFLOAD xdr 2018-08-09 12:56:38 -04:00
client.c NFS/SUNRPC: don't lookup machine credential until rpcauth_bindcred(). 2018-12-19 13:52:45 -05:00
delegation.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
delegation.h NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
dir.c NFS: struct nfs_open_dir_context: convert rpc_cred pointer to cred. 2018-12-19 13:52:46 -05:00
direct.c nfs: don't dirty kernel pages read by direct-io 2018-12-02 09:43:56 -05:00
dns_resolve.c NFS: Fix up a typo in nfs_dns_ent_put 2018-10-29 16:58:04 -04:00
dns_resolve.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
export.c NFS: Pass the inode down to the getattr() callback 2018-06-04 12:07:07 -04:00
file.c fs: nfs: Adding new return type vm_fault_t 2018-07-30 13:19:40 -04:00
fscache-index.c vfs: change inode times to use struct timespec64 2018-06-05 16:57:31 -07:00
fscache.c vfs: change inode times to use struct timespec64 2018-06-05 16:57:31 -07:00
fscache.h fscache: Pass object size in rather than calling back for it 2018-04-06 14:05:14 +01:00
getroot.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
inode.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
internal.h Merge branch 'mount.part1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-01-05 13:25:58 -08:00
io.c NFS: Fix a race between mmap() and O_DIRECT 2018-01-28 22:00:15 -05:00
iostat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig pnfs/blocklayout: require 64-bit sector_t 2017-08-11 14:10:13 -04:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mount_clnt.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
namespace.c NFS: Use ERR_CAST() to avoid cross-structure cast 2017-05-28 10:11:47 -07:00
netns.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs2super.c
nfs2xdr.c NFS: Account for XDR pad of buf->pages 2019-02-14 10:13:49 -05:00
nfs3_fs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs3acl.c NFS: Mark expected switch fall-throughs 2018-08-08 16:50:02 -04:00
nfs3client.c NFS: Remove unused authflavour parameter from nfs_get_client() 2016-12-01 17:46:32 -05:00
nfs3proc.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs3super.c nfsv3: introduce nfs3_set_ds_client 2015-02-03 11:06:34 -08:00
nfs3xdr.c NFS: Account for XDR pad of buf->pages 2019-02-14 10:13:49 -05:00
nfs4_fs.h sunrpc: Add xprt after nfs4_test_session_trunk() 2019-01-02 12:05:19 -05:00
nfs4client.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs4file.c NFSv4.2 fix unnecessary retry in nfs4_copy_file_range 2019-01-15 11:24:49 -05:00
nfs4getroot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs4idmap.c NFS: Mark expected switch fall-throughs 2018-08-08 16:50:02 -04:00
nfs4idmap.h NFS: Move nfs_idmap.h into fs/nfs/ 2015-04-23 15:16:14 -04:00
nfs4namespace.c nfs: Referrals should use the same proto setting as their parent 2018-01-14 23:06:30 -05:00
nfs4proc.c NFS client updates for Linux 4.21 2019-01-02 16:35:23 -08:00
nfs4renewd.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs4session.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs4session.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs4state.c NFSv4.2 fix async copy reboot recovery 2019-01-02 12:05:19 -05:00
nfs4super.c NFS: Move nfs_idmap.h into fs/nfs/ 2015-04-23 15:16:14 -04:00
nfs4sysctl.c nfs: Do not convert nfs_idmap_cache_timeout to jiffies 2018-01-18 15:10:47 -05:00
nfs4trace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs4trace.h NFS: Add trace events to report non-zero NFS status codes 2019-02-13 12:03:21 -05:00
nfs4xdr.c NFS: Account for XDR pad of buf->pages 2019-02-14 10:13:49 -05:00
nfs42.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs42proc.c NFSv4.2 copy do not allocate memory under the lock 2018-11-22 13:54:46 -05:00
nfs42xdr.c NFS: Remove print_overflow_msg() 2019-02-13 11:53:45 -05:00
nfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfsroot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfstrace.c NFS: Add trace events to report non-zero NFS status codes 2019-02-13 12:03:21 -05:00
nfstrace.h NFS: Add trace events to report non-zero NFS status codes 2019-02-13 12:03:21 -05:00
pagelist.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
pnfs_dev.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
pnfs_nfs.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
pnfs.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
pnfs.h NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
proc.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
read.c NFS: Remove private spinlock in struct nfs_pgio_header 2018-09-30 15:35:17 -04:00
super.c nfs: Fix NULL pointer dereference of dev_name 2019-01-28 12:08:30 -05:00
symlink.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysctl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unlink.c NFS: remove unnecessary test for IS_ERR(cred) 2019-01-02 12:05:19 -05:00
write.c NFS: Fix up return value on fatal errors in nfs_page_async_flush() 2019-01-29 16:33:24 -05:00