reiserfs: don't wank with EFBIG before calling do_sync_write()
look for file_capable() in there...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 6165bd4..dcaafcf 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -234,68 +234,9 @@
return ret;
}
-/* Write @count bytes at position @ppos in a file indicated by @file
- from the buffer @buf.
-
- generic_file_write() is only appropriate for filesystems that are not seeking to optimize performance and want
- something simple that works. It is not for serious use by general purpose filesystems, excepting the one that it was
- written for (ext2/3). This is for several reasons:
-
- * It has no understanding of any filesystem specific optimizations.
-
- * It enters the filesystem repeatedly for each page that is written.
-
- * It depends on reiserfs_get_block() function which if implemented by reiserfs performs costly search_by_key
- * operation for each page it is supplied with. By contrast reiserfs_file_write() feeds as much as possible at a time
- * to reiserfs which allows for fewer tree traversals.
-
- * Each indirect pointer insertion takes a lot of cpu, because it involves memory moves inside of blocks.
-
- * Asking the block allocation code for blocks one at a time is slightly less efficient.
-
- All of these reasons for not using only generic file write were understood back when reiserfs was first miscoded to
- use it, but we were in a hurry to make code freeze, and so it couldn't be revised then. This new code should make
- things right finally.
-
- Future Features: providing search_by_key with hints.
-
-*/
-static ssize_t reiserfs_file_write(struct file *file, /* the file we are going to write into */
- const char __user * buf, /* pointer to user supplied data
- (in userspace) */
- size_t count, /* amount of bytes to write */
- loff_t * ppos /* pointer to position in file that we start writing at. Should be updated to
- * new current position before returning. */
- )
-{
- struct inode *inode = file_inode(file); // Inode of the file that we are writing to.
- /* To simplify coding at this time, we store
- locked pages in array for now */
- struct reiserfs_transaction_handle th;
- th.t_trans_id = 0;
-
- /* If a filesystem is converted from 3.5 to 3.6, we'll have v3.5 items
- * lying around (most of the disk, in fact). Despite the filesystem
- * now being a v3.6 format, the old items still can't support large
- * file sizes. Catch this case here, as the rest of the VFS layer is
- * oblivious to the different limitations between old and new items.
- * reiserfs_setattr catches this for truncates. This chunk is lifted
- * from generic_write_checks. */
- if (get_inode_item_key_version (inode) == KEY_FORMAT_3_5 &&
- *ppos + count > MAX_NON_LFS) {
- if (*ppos >= MAX_NON_LFS) {
- return -EFBIG;
- }
- if (count > MAX_NON_LFS - (unsigned long)*ppos)
- count = MAX_NON_LFS - (unsigned long)*ppos;
- }
-
- return do_sync_write(file, buf, count, ppos);
-}
-
const struct file_operations reiserfs_file_operations = {
.read = do_sync_read,
- .write = reiserfs_file_write,
+ .write = do_sync_write,
.unlocked_ioctl = reiserfs_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = reiserfs_compat_ioctl,