[PATCH 12/25] vfs: pass remap flags to generic_remap_checks

[Darrick J. Wong]

From: Darrick J. Wong <darrick.w...@oracle.com>

Pass the same remap flags to generic_remap_checks for consistency.

Signed-off-by: Darrick J. Wong <darrick.w...@oracle.com>
Reviewed-by: Amir Goldstein <amir7...@gmail.com>
---
 fs/read_write.c    |    2 +-
 include/linux/fs.h |    2 +-
 mm/filemap.c       |    4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)


diff --git a/fs/read_write.c b/fs/read_write.c
index 5d24e9854765..0c43997bd4a1 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1755,7 +1755,7 @@ int generic_remap_file_range_prep(struct file *file_in, 
loff_t pos_in,
 
        /* Check that we don't violate system file offset limits. */
        ret = generic_remap_checks(file_in, pos_in, file_out, pos_out, len,
-                       is_dedupe);
+                       remap_flags);
        if (ret)
                return ret;
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index b67f108932a5..b59637b2f484 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2990,7 +2990,7 @@ extern int generic_file_readonly_mmap(struct file *, 
struct vm_area_struct *);
 extern ssize_t generic_write_checks(struct kiocb *, struct iov_iter *);
 extern int generic_remap_checks(struct file *file_in, loff_t pos_in,
                                struct file *file_out, loff_t pos_out,
-                               uint64_t *count, bool is_dedupe);
+                               uint64_t *count, unsigned int remap_flags);
 extern ssize_t generic_file_read_iter(struct kiocb *, struct iov_iter *);
 extern ssize_t __generic_file_write_iter(struct kiocb *, struct iov_iter *);
 extern ssize_t generic_file_write_iter(struct kiocb *, struct iov_iter *);
diff --git a/mm/filemap.c b/mm/filemap.c
index 08ad210fee49..c34a89a35d5a 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3001,7 +3001,7 @@ EXPORT_SYMBOL(generic_write_checks);
  */
 int generic_remap_checks(struct file *file_in, loff_t pos_in,
                         struct file *file_out, loff_t pos_out,
-                        uint64_t *req_count, bool is_dedupe)
+                        uint64_t *req_count, unsigned int remap_flags)
 {
        struct inode *inode_in = file_in->f_mapping->host;
        struct inode *inode_out = file_out->f_mapping->host;
@@ -3023,7 +3023,7 @@ int generic_remap_checks(struct file *file_in, loff_t 
pos_in,
        size_out = i_size_read(inode_out);
 
        /* Dedupe requires both ranges to be within EOF. */
-       if (is_dedupe &&
+       if ((remap_flags & RFR_SAME_DATA) &&
            (pos_in >= size_in || pos_in + count > size_in ||
             pos_out >= size_out || pos_out + count > size_out))
                return -EINVAL;