switch simple cases of fget_light to fdget

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-08-28 12:52:22 -04:00
parent a5b470ba06
commit 2903ff019b
44 changed files with 631 additions and 761 deletions

View File

@@ -1746,11 +1746,10 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
long fd;
int sectsize;
char *p = (char *)page;
struct file *filp = NULL;
struct inode *inode = NULL;
struct fd f;
struct inode *inode;
ssize_t ret = -EINVAL;
int live_threshold;
int fput_needed;
if (reg->hr_bdev)
goto out;
@@ -1767,26 +1766,26 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
if (fd < 0 || fd >= INT_MAX)
goto out;
filp = fget_light(fd, &fput_needed);
if (filp == NULL)
f = fdget(fd);
if (f.file == NULL)
goto out;
if (reg->hr_blocks == 0 || reg->hr_start_block == 0 ||
reg->hr_block_bytes == 0)
goto out;
goto out2;
inode = igrab(filp->f_mapping->host);
inode = igrab(f.file->f_mapping->host);
if (inode == NULL)
goto out;
goto out2;
if (!S_ISBLK(inode->i_mode))
goto out;
goto out3;
reg->hr_bdev = I_BDEV(filp->f_mapping->host);
reg->hr_bdev = I_BDEV(f.file->f_mapping->host);
ret = blkdev_get(reg->hr_bdev, FMODE_WRITE | FMODE_READ, NULL);
if (ret) {
reg->hr_bdev = NULL;
goto out;
goto out3;
}
inode = NULL;
@@ -1798,7 +1797,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
"blocksize %u incorrect for device, expected %d",
reg->hr_block_bytes, sectsize);
ret = -EINVAL;
goto out;
goto out3;
}
o2hb_init_region_params(reg);
@@ -1812,13 +1811,13 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
ret = o2hb_map_slot_data(reg);
if (ret) {
mlog_errno(ret);
goto out;
goto out3;
}
ret = o2hb_populate_slot_data(reg);
if (ret) {
mlog_errno(ret);
goto out;
goto out3;
}
INIT_DELAYED_WORK(&reg->hr_write_timeout_work, o2hb_write_timeout);
@@ -1848,7 +1847,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
if (IS_ERR(hb_task)) {
ret = PTR_ERR(hb_task);
mlog_errno(ret);
goto out;
goto out3;
}
spin_lock(&o2hb_live_lock);
@@ -1864,7 +1863,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
if (reg->hr_aborted_start) {
ret = -EIO;
goto out;
goto out3;
}
/* Ok, we were woken. Make sure it wasn't by drop_item() */
@@ -1883,11 +1882,11 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
printk(KERN_NOTICE "o2hb: Heartbeat started on region %s (%s)\n",
config_item_name(&reg->hr_item), reg->hr_dev_name);
out3:
iput(inode);
out2:
fdput(f);
out:
if (filp)
fput_light(filp, fput_needed);
if (inode)
iput(inode);
if (ret < 0) {
if (reg->hr_bdev) {
blkdev_put(reg->hr_bdev, FMODE_READ|FMODE_WRITE);