nathan/Chromebook-Device-Nyan-NVIDIA-Tegra-K1-T124-Upstream-Linux-3.10-LTS-Kernel
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Added swap support

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Nathan 2025-04-07 00:17:00 -05:00
parent 4822424518
commit dd8b7f2b10
1 changed files with 0 additions and 11 deletions
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11
mm/swapfile.c
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@ -1889,17 +1889,8 @@ static struct swap_info_struct *alloc_swap_info(void)
static int claim_swapfile(struct swap_info_struct *p, struct inode *inode) static int claim_swapfile(struct swap_info_struct *p, struct inode *inode)
{ {
int error; int error;
/* On Chromium OS, we only support zram swap devices. */
if (S_ISBLK(inode->i_mode)) { if (S_ISBLK(inode->i_mode)) {
char name[BDEVNAME_SIZE];
p->bdev = bdgrab(I_BDEV(inode)); p->bdev = bdgrab(I_BDEV(inode));
bdevname(p->bdev, name);
if (strncmp(name, "zram", strlen("zram")) &&
strncmp(name, "ram", strlen("ram"))) {
bdput(p->bdev);
p->bdev = NULL;
return -EINVAL;
}
error = blkdev_get(p->bdev, error = blkdev_get(p->bdev,
FMODE_READ | FMODE_WRITE | FMODE_EXCL, FMODE_READ | FMODE_WRITE | FMODE_EXCL,
sys_swapon); sys_swapon);
@ -1912,13 +1903,11 @@ static int claim_swapfile(struct swap_info_struct *p, struct inode *inode)
if (error < 0) if (error < 0)
return error; return error;
p->flags |= SWP_BLKDEV; p->flags |= SWP_BLKDEV;
#if 0
} else if (S_ISREG(inode->i_mode)) { } else if (S_ISREG(inode->i_mode)) {
p->bdev = inode->i_sb->s_bdev; p->bdev = inode->i_sb->s_bdev;
mutex_lock(&inode->i_mutex); mutex_lock(&inode->i_mutex);
if (IS_SWAPFILE(inode)) if (IS_SWAPFILE(inode))
return -EBUSY; return -EBUSY;
#endif
} else } else
return -EINVAL; return -EINVAL;