Added swap support
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4822424518
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dd8b7f2b10
@ -1889,17 +1889,8 @@ static struct swap_info_struct *alloc_swap_info(void)
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static int claim_swapfile(struct swap_info_struct *p, struct inode *inode)
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{
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int error;
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/* On Chromium OS, we only support zram swap devices. */
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if (S_ISBLK(inode->i_mode)) {
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char name[BDEVNAME_SIZE];
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p->bdev = bdgrab(I_BDEV(inode));
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bdevname(p->bdev, name);
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if (strncmp(name, "zram", strlen("zram")) &&
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strncmp(name, "ram", strlen("ram"))) {
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bdput(p->bdev);
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p->bdev = NULL;
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return -EINVAL;
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}
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error = blkdev_get(p->bdev,
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FMODE_READ | FMODE_WRITE | FMODE_EXCL,
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sys_swapon);
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@ -1912,13 +1903,11 @@ static int claim_swapfile(struct swap_info_struct *p, struct inode *inode)
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if (error < 0)
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return error;
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p->flags |= SWP_BLKDEV;
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#if 0
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} else if (S_ISREG(inode->i_mode)) {
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p->bdev = inode->i_sb->s_bdev;
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mutex_lock(&inode->i_mutex);
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if (IS_SWAPFILE(inode))
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return -EBUSY;
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#endif
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} else
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return -EINVAL;
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