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pass writeback_control to ->write_inode

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This gives the filesystem more information about the writeback that
is happening.  Trond requested this for the NFS unstable write handling,
and other filesystems might benefit from this too by beeing able to
distinguish between the different callers in more detail.

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Christoph Hellwig 2010-03-05 09:21:37 +01:00 • committed by Al Viro
commit a9185b41a4
45 changed files with 115 additions and 72 deletions
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10
fs/sysv/inode.c
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@ -26,6 +26,7 @@
#include <linux/init.h>
#include <linux/buffer_head.h>
#include <linux/vfs.h>
#include <linux/writeback.h>
#include <linux/namei.h>
#include <asm/byteorder.h>
#include "sysv.h"
@ -246,7 +247,7 @@ bad_inode:
return ERR_PTR(-EIO);
}
int sysv_write_inode(struct inode *inode, int wait)
static int __sysv_write_inode(struct inode *inode, int wait)
{
struct super_block * sb = inode->i_sb;
struct sysv_sb_info * sbi = SYSV_SB(sb);
@ -296,9 +297,14 @@ int sysv_write_inode(struct inode *inode, int wait)
return 0;
}
int sysv_write_inode(struct inode *inode, struct writeback_control *wbc)
{
return __sysv_write_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
}
int sysv_sync_inode(struct inode *inode)
{
return sysv_write_inode(inode, 1);
return __sysv_write_inode(inode, 1);
}
static void sysv_delete_inode(struct inode *inode)

2
fs/sysv/sysv.h
View file

@ -142,7 +142,7 @@ extern int __sysv_write_begin(struct file *file, struct address_space *mapping,
/* inode.c */
extern struct inode *sysv_iget(struct super_block *, unsigned int);
extern int sysv_write_inode(struct inode *, int);
extern int sysv_write_inode(struct inode *, struct writeback_control *wbc);
extern int sysv_sync_inode(struct inode *);
extern void sysv_set_inode(struct inode *, dev_t);
extern int sysv_getattr(struct vfsmount *, struct dentry *, struct kstat *);