diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-12-15 09:45:05 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2021-12-18 08:04:52 -0800 |
| commit | e17f7a0bc4daa44a4809f5f2f947aa2aa74d1369 (patch) | |
| tree | e7b0741be49ef6eba9ec0bc8ede91a986fc97d5e | |
| parent | de291b5902860d18d6e02000808aeb833ec1feb6 (diff) | |
uio: remove copy_from_iter_flushcache() and copy_mc_to_iter()
These two wrappers are never used.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211215084508.435401-2-hch@lst.de
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| -rw-r--r-- | drivers/nvdimm/pmem.c | 4 | ||||
| -rw-r--r-- | include/linux/uio.h | 20 |
2 files changed, 2 insertions, 22 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 4190c8c46ca8..d225bcfa67cf 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -302,9 +302,7 @@ static long pmem_dax_direct_access(struct dax_device *dax_dev, } /* - * Use the 'no check' versions of copy_from_iter_flushcache() and - * copy_mc_to_iter() to bypass HARDENED_USERCOPY overhead. Bounds - * checking, both file offset and device offset, is handled by + * Bounds checking, both file offset and device offset, is handled by * dax_iomap_actor() */ static size_t pmem_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, diff --git a/include/linux/uio.h b/include/linux/uio.h index 6350354f97e9..494d552c1d66 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -196,7 +196,7 @@ bool copy_from_iter_full_nocache(void *addr, size_t bytes, struct iov_iter *i) #ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE /* * Note, users like pmem that depend on the stricter semantics of - * copy_from_iter_flushcache() than copy_from_iter_nocache() must check for + * _copy_from_iter_flushcache() than _copy_from_iter_nocache() must check for * IS_ENABLED(CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE) before assuming that the * destination is flushed from the cache on return. */ @@ -211,24 +211,6 @@ size_t _copy_mc_to_iter(const void *addr, size_t bytes, struct iov_iter *i); #define _copy_mc_to_iter _copy_to_iter #endif -static __always_inline __must_check -size_t copy_from_iter_flushcache(void *addr, size_t bytes, struct iov_iter *i) -{ - if (unlikely(!check_copy_size(addr, bytes, false))) - return 0; - else - return _copy_from_iter_flushcache(addr, bytes, i); -} - -static __always_inline __must_check -size_t copy_mc_to_iter(void *addr, size_t bytes, struct iov_iter *i) -{ - if (unlikely(!check_copy_size(addr, bytes, true))) - return 0; - else - return _copy_mc_to_iter(addr, bytes, i); -} - size_t iov_iter_zero(size_t bytes, struct iov_iter *); unsigned long iov_iter_alignment(const struct iov_iter *i); unsigned long iov_iter_gap_alignment(const struct iov_iter *i); |