[PATCH v2 0/3] Convert vmcore to use an iov_iter

From: Matthew Wilcox (Oracle)
Date: Mon Dec 13 2021 - 09:19:26 EST


For some reason several people have been sending bad patches to fix
compiler warnings in vmcore recently. Here's how it should be done.
Compile-tested only on x86. As noted in the first patch, s390 should
take this conversion a bit further, but I'm not inclined to do that
work myself.

v2:
- Removed unnecessary kernel-doc
- Included uio.h to fix compilation problems
- Made read_from_oldmem_iter static to avoid compile warnings during the
conversion
- Use iov_iter_truncate() (Christoph)

Matthew Wilcox (Oracle) (3):
vmcore: Convert __read_vmcore to use an iov_iter
vmcore: Convert read_from_oldmem() to take an iov_iter
iov-kaddr

arch/x86/kernel/crash_dump_64.c | 7 +-
fs/9p/vfs_dir.c | 5 +-
fs/9p/xattr.c | 6 +-
fs/proc/vmcore.c | 119 ++++++++++++--------------------
include/linux/crash_dump.h | 10 ++-
include/linux/uio.h | 9 +++
lib/iov_iter.c | 32 +++++++++
7 files changed, 97 insertions(+), 91 deletions(-)

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2.33.0