linux/fs/quota/quota_tree.h
Jiaying Zhang 1907131bbe dquot: Detect partial write error to quota file in write_blk() and add printk_ratelimit for quota error messages
This patch changes quota_tree.c:write_blk() to detect error caused by partial
write to quota file and add a macro to limit control printed quota error
messages so we won't fill up dmesg with a corrupted quota file.

Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2010-05-21 19:30:49 +02:00

32 lines
792 B
C

/*
* Definitions of structures for vfsv0 quota format
*/
#ifndef _LINUX_QUOTA_TREE_H
#define _LINUX_QUOTA_TREE_H
#include <linux/types.h>
#include <linux/quota.h>
/*
* Structure of header of block with quota structures. It is padded to 16 bytes so
* there will be space for exactly 21 quota-entries in a block
*/
struct qt_disk_dqdbheader {
__le32 dqdh_next_free; /* Number of next block with free entry */
__le32 dqdh_prev_free; /* Number of previous block with free entry */
__le16 dqdh_entries; /* Number of valid entries in block */
__le16 dqdh_pad1;
__le32 dqdh_pad2;
};
#define QT_TREEOFF 1 /* Offset of tree in file in blocks */
#define q_warn(fmt, args...) \
do { \
if (printk_ratelimit()) \
printk(fmt, ## args); \
} while(0)
#endif /* _LINUX_QUOTAIO_TREE_H */