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lib9: do not fetch disk size for character devices

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Real disk devices should be block devices anyway.
One user reported the disksize check causing a
system reboot during vac of a tree with an "interesting"
device.

Fixes #103.
This commit is contained in:
Russ Cox 2020-01-13 19:30:02 -05:00
parent 6c17f63090
commit 3a62e56307
1 changed files with 1 additions and 1 deletions
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2
src/lib9/_p9dir.c
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@ -230,7 +230,7 @@ _p9dir(struct stat *lst, struct stat *st, char *name, Dir *d, char **str, char *
d->qid.path = ('c'<<16)|st->st_rdev;
}
/* fetch real size for disks */
if(S_ISBLK(lst->st_mode) || S_ISCHR(lst->st_mode)){
if(S_ISBLK(lst->st_mode)){
if((fd = open(name, O_RDONLY)) >= 0){
d->length = disksize(fd, st);
close(fd);