[PATCH] reiserfs: reiserfs: check for files > 2GB on 3.5.x disks
When a filesystem has been converted from 3.5.x to 3.6.x, we need an extra check during file write to make sure we are not trying to make a 3.5.x file > 2GB. Signed-off-by: Chris Mason <mason@suse.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -1287,6 +1287,23 @@ static ssize_t reiserfs_file_write(struct file *file, /* the file we are going t
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struct reiserfs_transaction_handle th;
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struct reiserfs_transaction_handle th;
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th.t_trans_id = 0;
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th.t_trans_id = 0;
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/* If a filesystem is converted from 3.5 to 3.6, we'll have v3.5 items
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* lying around (most of the disk, in fact). Despite the filesystem
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* now being a v3.6 format, the old items still can't support large
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* file sizes. Catch this case here, as the rest of the VFS layer is
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* oblivious to the different limitations between old and new items.
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* reiserfs_setattr catches this for truncates. This chunk is lifted
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* from generic_write_checks. */
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if (get_inode_item_key_version (inode) == KEY_FORMAT_3_5 &&
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*ppos + count > MAX_NON_LFS) {
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if (*ppos >= MAX_NON_LFS) {
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send_sig(SIGXFSZ, current, 0);
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return -EFBIG;
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}
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if (count > MAX_NON_LFS - (unsigned long)*ppos)
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count = MAX_NON_LFS - (unsigned long)*ppos;
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}
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if (file->f_flags & O_DIRECT) { // Direct IO needs treatment
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if (file->f_flags & O_DIRECT) { // Direct IO needs treatment
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ssize_t result, after_file_end = 0;
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ssize_t result, after_file_end = 0;
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if ((*ppos + count >= inode->i_size)
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if ((*ppos + count >= inode->i_size)
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