Re: [PATCH 07/11] iomap: fix the iomap_fiemap prototype

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On 4/27/20 11:49 PM, Christoph Hellwig wrote:
iomap_fiemap should take u64 start and len arguments, just like the
->fiemap prototype.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>

hmm.. I guess,
it's only ->fiemap ops in inode_operations which has
start and len arguments as u64.

While such other ops in struct file_operations have the
arguments of type loff_t. (e.g. ->fallocate, -->llseek etc).

But sure to match the ->fiemap prototype, this patch looks ok to me.

Feel free to add:
Reviewed-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>

---
  fs/iomap/fiemap.c     | 2 +-
  include/linux/iomap.h | 2 +-
  2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/iomap/fiemap.c b/fs/iomap/fiemap.c
index fca3dfb9d964a..dd04e4added15 100644
--- a/fs/iomap/fiemap.c
+++ b/fs/iomap/fiemap.c
@@ -66,7 +66,7 @@ iomap_fiemap_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
  }
int iomap_fiemap(struct inode *inode, struct fiemap_extent_info *fi,
-		loff_t start, loff_t len, const struct iomap_ops *ops)
+		u64 start, u64 len, const struct iomap_ops *ops)
  {
  	struct fiemap_ctx ctx;
  	loff_t ret;
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index 8b09463dae0db..63db02528b702 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -178,7 +178,7 @@ int iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,
  vm_fault_t iomap_page_mkwrite(struct vm_fault *vmf,
  			const struct iomap_ops *ops);
  int iomap_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
-		loff_t start, loff_t len, const struct iomap_ops *ops);
+		u64 start, u64 len, const struct iomap_ops *ops);
  loff_t iomap_seek_hole(struct inode *inode, loff_t offset,
  		const struct iomap_ops *ops);
  loff_t iomap_seek_data(struct inode *inode, loff_t offset,




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