AcoSail/kernel_optimize_test
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repair sysv_write_inode(), switch sysv to simple_fsync()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2009-06-07 15:29:45 -04:00
parent 0d7916d7e9
commit 05459ca81a
4 changed files with 19 additions and 48 deletions
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2
fs/sysv/dir.c
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@ -24,7 +24,7 @@ static int sysv_readdir(struct file *, void *, filldir_t);
const struct file_operations sysv_dir_operations = {
.read = generic_read_dir,
.readdir = sysv_readdir,
.fsync = sysv_sync_file,
.fsync = simple_fsync,
};
static inline void dir_put_page(struct page *page)

17
fs/sysv/file.c
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@ -26,7 +26,7 @@ const struct file_operations sysv_file_operations = {
.write = do_sync_write,
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
.fsync = sysv_sync_file,
.fsync = simple_fsync,
.splice_read = generic_file_splice_read,
};
@ -34,18 +34,3 @@ const struct inode_operations sysv_file_inode_operations = {
.truncate = sysv_truncate,
.getattr = sysv_getattr,
};
int sysv_sync_file(struct file * file, struct dentry *dentry, int datasync)
{
struct inode *inode = dentry->d_inode;
int err;
err = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY))
return err;
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
return err;
err |= sysv_sync_inode(inode);
return err ? -EIO : 0;
}

47
fs/sysv/inode.c
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@ -247,7 +247,7 @@ struct inode *sysv_iget(struct super_block *sb, unsigned int ino)
return ERR_PTR(-EIO);
}
static struct buffer_head * sysv_update_inode(struct inode * inode)
int sysv_write_inode(struct inode *inode, int wait)
{
struct super_block * sb = inode->i_sb;
struct sysv_sb_info * sbi = SYSV_SB(sb);
@ -255,19 +255,21 @@ static struct buffer_head * sysv_update_inode(struct inode * inode)
struct sysv_inode * raw_inode;
struct sysv_inode_info * si;
unsigned int ino, block;
int err = 0;
ino = inode->i_ino;
if (!ino || ino > sbi->s_ninodes) {
printk("Bad inode number on dev %s: %d is out of range\n",
inode->i_sb->s_id, ino);
return NULL;
return -EIO;
}
raw_inode = sysv_raw_inode(sb, ino, &bh);
if (!raw_inode) {
printk("unable to read i-node block\n");
return NULL;
return -EIO;
}
lock_kernel();
raw_inode->i_mode = cpu_to_fs16(sbi, inode->i_mode);
raw_inode->i_uid = cpu_to_fs16(sbi, fs_high2lowuid(inode->i_uid));
raw_inode->i_gid = cpu_to_fs16(sbi, fs_high2lowgid(inode->i_gid));
@ -283,38 +285,23 @@ static struct buffer_head * sysv_update_inode(struct inode * inode)
for (block = 0; block < 10+1+1+1; block++)
write3byte(sbi, (u8 *)&si->i_data[block],
&raw_inode->i_data[3*block]);
mark_buffer_dirty(bh);
return bh;
}
int sysv_write_inode(struct inode * inode, int wait)
{
struct buffer_head *bh;
lock_kernel();
bh = sysv_update_inode(inode);
brelse(bh);
unlock_kernel();
mark_buffer_dirty(bh);
if (wait) {
sync_dirty_buffer(bh);
if (buffer_req(bh) && !buffer_uptodate(bh)) {
printk ("IO error syncing sysv inode [%s:%08x]\n",
sb->s_id, ino);
err = -EIO;
}
}
brelse(bh);
return 0;
}
int sysv_sync_inode(struct inode * inode)
int sysv_sync_inode(struct inode *inode)
{
int err = 0;
struct buffer_head *bh;
bh = sysv_update_inode(inode);
if (bh && buffer_dirty(bh)) {
sync_dirty_buffer(bh);
if (buffer_req(bh) && !buffer_uptodate(bh)) {
printk ("IO error syncing sysv inode [%s:%08lx]\n",
inode->i_sb->s_id, inode->i_ino);
err = -1;
}
}
else if (!bh)
err = -1;
brelse (bh);
return err;
return sysv_write_inode(inode, 1);
}
static void sysv_delete_inode(struct inode *inode)

1
fs/sysv/sysv.h
View File

@ -144,7 +144,6 @@ extern int __sysv_write_begin(struct file *file, struct address_space *mapping,
extern struct inode *sysv_iget(struct super_block *, unsigned int);
extern int sysv_write_inode(struct inode *, int);
extern int sysv_sync_inode(struct inode *);
extern int sysv_sync_file(struct file *, struct dentry *, int);
extern void sysv_set_inode(struct inode *, dev_t);
extern int sysv_getattr(struct vfsmount *, struct dentry *, struct kstat *);
extern int sysv_init_icache(void);