[PATCH v10 4/8] fsdax: Convert dax_iomap_zero to iter model
From: Shiyang Ruan <hidden>
Date: 2021-09-28 06:23:53
Also in:
linux-fsdevel, lkml, nvdimm
Subsystem:
filesystem direct access (dax), filesystems (vfs and infrastructure), filesystems [iomap], the rest · Maintainers:
Dan Williams, Alexander Viro, Christian Brauner, Linus Torvalds
Let dax_iomap_zero() support iter model. Signed-off-by: Shiyang Ruan <redacted> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> --- fs/dax.c | 3 ++- fs/iomap/buffered-io.c | 3 +-- include/linux/dax.h | 3 ++- 3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/fs/dax.c b/fs/dax.c
index b437badfe0dd..debe459680f2 100644
--- a/fs/dax.c
+++ b/fs/dax.c@@ -1209,8 +1209,9 @@ static vm_fault_t dax_pmd_load_hole(struct xa_state *xas, struct vm_fault *vmf, } #endif /* CONFIG_FS_DAX_PMD */ -s64 dax_iomap_zero(loff_t pos, u64 length, struct iomap *iomap) +s64 dax_iomap_zero(const struct iomap_iter *iter, loff_t pos, u64 length) { + const struct iomap *iomap = &iter->iomap; sector_t sector = iomap_sector(iomap, pos & PAGE_MASK); pgoff_t pgoff; long rc, id;
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 9cc5798423d1..84a861d3b3e0 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c@@ -889,7 +889,6 @@ static s64 __iomap_zero_iter(struct iomap_iter *iter, loff_t pos, u64 length) static loff_t iomap_zero_iter(struct iomap_iter *iter, bool *did_zero) { - struct iomap *iomap = &iter->iomap; const struct iomap *srcmap = iomap_iter_srcmap(iter); loff_t pos = iter->pos; loff_t length = iomap_length(iter);
@@ -903,7 +902,7 @@ static loff_t iomap_zero_iter(struct iomap_iter *iter, bool *did_zero) s64 bytes; if (IS_DAX(iter->inode)) - bytes = dax_iomap_zero(pos, length, iomap); + bytes = dax_iomap_zero(iter, pos, length); else bytes = __iomap_zero_iter(iter, pos, length); if (bytes < 0)
diff --git a/include/linux/dax.h b/include/linux/dax.h
index 2619d94c308d..b6f5d0d30065 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h@@ -13,6 +13,7 @@ typedef unsigned long dax_entry_t; struct iomap_ops; struct iomap; +struct iomap_iter; struct dax_device; struct dax_operations { /*
@@ -210,7 +211,7 @@ vm_fault_t dax_finish_sync_fault(struct vm_fault *vmf, int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index); int dax_invalidate_mapping_entry_sync(struct address_space *mapping, pgoff_t index); -s64 dax_iomap_zero(loff_t pos, u64 length, struct iomap *iomap); +s64 dax_iomap_zero(const struct iomap_iter *iter, loff_t pos, u64 length); static inline bool dax_mapping(struct address_space *mapping) { return mapping->host && IS_DAX(mapping->host);
--
2.33.0