Revision e1cbbfa5f5aaf40a1fe70856fac4dfcc33e0e651 authored by Josef Bacik on 17 March 2015, 14:52:28 UTC, committed by Josef Bacik on 17 March 2015, 20:36:35 UTC
We are keeping track of how many extents we need to reserve properly based on
the amount we want to write, but we were still incrementing outstanding_extents
if we wrote less than what we requested.  This isn't quite right since we will
be limited to our max extent size.  So instead lets do something horrible!  Keep
track of how many outstanding_extents we reserved, and decrement each time we
allocate an extent.  If we use our entire reserve make sure to jack up
outstanding_extents on the inode so the accounting works out properly.  Thanks,

Reported-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
1 parent 6a3891c
Raw File
xip.h
/*
 *  linux/fs/ext2/xip.h
 *
 * Copyright (C) 2005 IBM Corporation
 * Author: Carsten Otte (cotte@de.ibm.com)
 */

#ifdef CONFIG_EXT2_FS_XIP
extern void ext2_xip_verify_sb (struct super_block *);
extern int ext2_clear_xip_target (struct inode *, sector_t);

static inline int ext2_use_xip (struct super_block *sb)
{
	struct ext2_sb_info *sbi = EXT2_SB(sb);
	return (sbi->s_mount_opt & EXT2_MOUNT_XIP);
}
int ext2_get_xip_mem(struct address_space *, pgoff_t, int,
				void **, unsigned long *);
#define mapping_is_xip(map) unlikely(map->a_ops->get_xip_mem)
#else
#define mapping_is_xip(map)			0
#define ext2_xip_verify_sb(sb)			do { } while (0)
#define ext2_use_xip(sb)			0
#define ext2_clear_xip_target(inode, chain)	0
#define ext2_get_xip_mem			NULL
#endif
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