97b141ac6
Eric Andersen
2002-11-03
Subject
Test for holes in swapfiles -Erik
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util-linux/swaponoff.c+12 -0
| @@ -48,6 +48,18 @@ static const int SWAPOFF_APP = 1; | |
| static int swap_enable_disable(const char *device) | |
| { | |
| int status; | |
| + | struct stat st; |
| + | |
| + | if (stat(device, &st) < 0) { |
| + | perror_msg_and_die("cannot stat %s"); |
| + | } |
| + | |
| + | /* test for holes */ |
| + | if (S_ISREG(st.st_mode)) { |
| + | if (st.st_blocks * 512 < st.st_size) { |
| + | error_msg_and_die("swap file has holes"); |
| + | } |
| + | } |
| if (whichApp == SWAPON_APP) | |
| status = swapon(device, 0); | |