The following is fixing the compilation of the fat FS as a runtime
loadable
module. I have tested the patch on my ZIP drive. Apparently there is
only
one one other filesystem out there which is using the same partial page
write interface, which appears as a leftover from older VFS versions.
(At least for fat I can't see what the special function was doing
different
then the generic one. At least it didn't touch any special FAT fields in
the inode.)
-- Marcin Dalecki --------------65D00679304DEBD2579F2E48 Content-Type: text/plain; charset=iso-8859-2; name="diff" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="diff"diff -ur linux/fs/fat/file.c linux-2.3.28/fs/fat/file.c --- linux/fs/fat/file.c Sun Nov 7 20:02:22 1999 +++ linux-2.3.28/fs/fat/file.c Sat Nov 13 05:21:13 1999 @@ -109,46 +109,6 @@ return 0; } -static int fat_write_partial_page(struct file *file, struct page *page, unsigned long offset, unsigned long bytes, const char * buf) -{ - struct dentry *dentry = file->f_dentry; - struct inode *inode = dentry->d_inode; - struct page *new_page, **hash; - unsigned long pgpos; - struct page *page_cache = NULL; - long status; - - pgpos = MSDOS_I(inode)->i_realsize >> PAGE_CACHE_SHIFT; - while (pgpos < page->index) { - hash = page_hash(&inode->i_data, pgpos); -repeat_find: new_page = __find_lock_page(&inode->i_data, pgpos, hash); - if (!new_page) { - if (!page_cache) { - page_cache = page_cache_alloc(); - if (page_cache) - goto repeat_find; - status = -ENOMEM; - goto out; - } - new_page = page_cache; - if (add_to_page_cache_unique(new_page,&inode->i_data,pgpos,hash)) - goto repeat_find; - page_cache = NULL; - } - status = block_write_cont_page(file, new_page, PAGE_SIZE, 0, NULL); - UnlockPage(new_page); - page_cache_release(new_page); - if (status < 0) - goto out; - pgpos = MSDOS_I(inode)->i_realsize >> PAGE_CACHE_SHIFT; - } - status = block_write_cont_page(file, page, offset, bytes, buf); -out: - if (page_cache) - page_cache_free(page_cache); - return status; -} - ssize_t fat_file_write( struct file *filp, const char *buf, @@ -171,7 +131,7 @@ int retval; retval = generic_file_write(filp, buf, count, ppos, - fat_write_partial_page); + block_write_partial_page); if (retval > 0) { inode->i_mtime = inode->i_ctime = CURRENT_TIME; MSDOS_I(inode)->i_attrs |= ATTR_ARCH;
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