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mnt: add matching on fs kernel subtypes

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Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Tycho Andersen
2015-04-09 21:54:00 +03:00
committed by Pavel Emelyanov
parent dfa96b5514
commit 71398f5cf5
1 changed files with 17 additions and 2 deletions
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19
mount.c
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@@ -1127,11 +1127,26 @@ struct fstype *find_fstype_by_name(char *fst)
* anything is wrong, almost every fs has its own features) * anything is wrong, almost every fs has its own features)
* 2nd -- save some space in the image (since we scan all * 2nd -- save some space in the image (since we scan all
* names anyway) * names anyway)
*
* The kernel reports "subtypes" sometimes and the valid
* type-vs-subtype delimiter is the dot symbol. We disregard any
* subtypes for the purpose of finding the fstype.
*/ */
char fstype[1024];
for (i = 0; i < ARRAY_SIZE(fstypes); i++) for (i = 0; fst[i] && i < sizeof(fstype) - 1; i++) {
if (!strcmp(fstypes[i].name, fst)) if (fst[i] == '.')
break;
fstype[i] = fst[i];
}
fstype[i] = 0;
for (i = 0; i < ARRAY_SIZE(fstypes); i++) {
if (!strcmp(fstypes[i].name, fstype))
return fstypes + i; return fstypes + i;
}
return &fstypes[0]; return &fstypes[0];
} }