提交 b9d7e6ae 编写于 作者: H Hugh Dickins 提交者: Linus Torvalds

[PATCH] hugetlb: fix size=4G parsing

On 32-bit machines, mount -t hugetlbfs -o size=4G gave a 0GB filesystem,
size=5G gave a 1GB filesystem etc: there's no point in masking size with
HPAGE_MASK just before shifting its lower bits away, and since HPAGE_MASK is a
UL, that removed all the higher bits of the unsigned long long size.
Signed-off-by: NHugh Dickins <hugh@veritas.com>
Cc: Adam Litke <agl@us.ibm.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 7b92aadf
...@@ -624,7 +624,6 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig) ...@@ -624,7 +624,6 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
do_div(size, 100); do_div(size, 100);
rest++; rest++;
} }
size &= HPAGE_MASK;
pconfig->nr_blocks = (size >> HPAGE_SHIFT); pconfig->nr_blocks = (size >> HPAGE_SHIFT);
value = rest; value = rest;
} else if (!strcmp(opt,"nr_inodes")) { } else if (!strcmp(opt,"nr_inodes")) {
......
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