Btrfs: Remove unused variable 'last_index' in file.c
The variable 'last_index' is calculated in the __btrfs_buffered_write function and passed as a parameter to the prepare_pages function, but is not used anywhere in the prepare_pages function. Remove instances of 'last_index' in these functions. Signed-off-by: Mitch Harder <mitch.harder@sabayonlinux.org> Signed-off-by: Chris Mason <chris.mason@oracle.com>
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@ -1059,7 +1059,7 @@ static int prepare_uptodate_page(struct page *page, u64 pos)
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static noinline int prepare_pages(struct btrfs_root *root, struct file *file,
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struct page **pages, size_t num_pages,
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loff_t pos, unsigned long first_index,
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unsigned long last_index, size_t write_bytes)
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size_t write_bytes)
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{
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struct extent_state *cached_state = NULL;
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int i;
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@ -1159,7 +1159,6 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
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struct btrfs_root *root = BTRFS_I(inode)->root;
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struct page **pages = NULL;
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unsigned long first_index;
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unsigned long last_index;
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size_t num_written = 0;
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int nrptrs;
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int ret = 0;
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@ -1172,7 +1171,6 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
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return -ENOMEM;
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first_index = pos >> PAGE_CACHE_SHIFT;
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last_index = (pos + iov_iter_count(i)) >> PAGE_CACHE_SHIFT;
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while (iov_iter_count(i) > 0) {
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size_t offset = pos & (PAGE_CACHE_SIZE - 1);
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@ -1206,8 +1204,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
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* contents of pages from loop to loop
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*/
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ret = prepare_pages(root, file, pages, num_pages,
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pos, first_index, last_index,
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write_bytes);
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pos, first_index, write_bytes);
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if (ret) {
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btrfs_delalloc_release_space(inode,
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num_pages << PAGE_CACHE_SHIFT);
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