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Scott Mayhew c98e9daa59 NFS: Adjust fs_context error logging 
Several existing dprink()/dfprintk() calls were converted to use the new
mount API logging macros by commit ce8866f091 ("NFS: Attach
supplementary error information to fs_context").  If the fs_context was
not created using fsopen() then it will not have had a log buffer
allocated for it, and the new mount API logging macros will wind up
calling printk().

This can result in syslog messages being logged where previously there
were none... most notably "NFS4: Couldn't follow remote path", which can
happen if the client is auto-negotiating a protocol version with an NFS
server that doesn't support the higher v4.x versions.

Convert the nfs_errorf(), nfs_invalf(), and nfs_warnf() macros to check
for the existence of the fs_context's log buffer and call dprintk() if
it doesn't exist.  Add nfs_ferrorf(), nfs_finvalf(), and nfs_warnf(),
which do the same thing but take an NFS debug flag as an argument and
call dfprintk().  Finally, modify the "NFS4: Couldn't follow remote
path" message to use nfs_ferrorf().

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=207385
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Fixes: ce8866f091 ("NFS: Attach supplementary error information to fs_context.")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-01-10 13:32:39 -05:00
arch - Update defconfigs and sort config select list. 2021-01-02 12:22:46 -08:00
block SCSI fixes on 20210101 2021-01-01 12:58:07 -08:00
certs .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
crypto crypto: aegis128 - avoid spurious references crypto_aegis128_update_simd 2020-12-04 18:16:53 +11:00
Documentation A small set of late-arriving, small documentation fixes. 2020-12-24 14:20:33 -08:00
drivers Power management updates for 5.11-rc2 2021-01-02 11:53:05 -08:00
fs NFS: Adjust fs_context error logging 2021-01-10 13:32:39 -05:00
include SCSI fixes on 20210101 2021-01-01 12:58:07 -08:00
init kasan, arm64: only use kasan_depth for software modes 2020-12-22 12:55:07 -08:00
ipc Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
kernel io_uring-5.11-2021-01-01 2021-01-01 12:29:49 -08:00
lib zlib: move EXPORT_SYMBOL() and MODULE_LICENSE() out of dfltcc_syms.c 2020-12-29 15:36:49 -08:00
LICENSES LICENSES: Add the CC-BY-4.0 license 2020-12-08 10:33:27 -07:00
mm mm: slub: call account_slab_page() after slab page initialization 2020-12-29 15:36:49 -08:00
net libceph: align session_key and con_secret to 16 bytes 2020-12-28 20:34:33 +01:00
samples ARM: SoC drivers for v5.11 2020-12-16 16:38:41 -08:00
scripts depmod: handle the case of /sbin/depmod without /sbin in PATH 2021-01-01 12:26:39 -08:00
security Provide a fix for the incorrect handling of privilege 2020-12-24 14:08:43 -08:00
sound sound fixes for 5.11-rc1 2020-12-23 15:11:08 -08:00
tools selftests/vm: fix building protection keys test 2020-12-29 15:36:49 -08:00
usr Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-08-07 13:29:39 -07:00
virt ARM: 2020-12-20 10:44:05 -08:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: docs: ignore sphinx_*/ directories 2020-09-10 10:44:31 -06:00
.mailmap RDMA 5.11 pull request 2020-12-16 13:42:26 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-12-11 22:29:38 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Merge branches 'pm-cpufreq' and 'pm-cpuidle' 2021-01-02 10:16:32 +01:00
Makefile Linux 5.11-rc2 2021-01-03 15:55:30 -08:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.