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| author | Mike Kravetz <mike.kravetz@oracle.com> | 2020-06-03 16:00:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-03 20:09:46 -0700 |
| commit | c2833a5bf75b3657c4dd20b3709c8c702754cb1f (patch) | |
| tree | d44de99a5e889c226ac8c84d6313fd6f733e71ac /mm | |
| parent | 282f4214384ee2e2ca39b2532a5296fddf762518 (diff) | |
| download | linux-c2833a5bf75b3657c4dd20b3709c8c702754cb1f.tar.bz2 | |
hugetlbfs: fix changes to command line processing
Previously, a check for hugepages_supported was added before processing
hugetlb command line parameters. On some architectures such as powerpc,
hugepages_supported() is not set to true until after command line
processing. Therefore, no hugetlb command line parameters would be
accepted.
Remove the additional checks for hugepages_supported. In hugetlb_init,
print a warning if !hugepages_supported and command line parameters were
specified.
Reported-by: Sandipan Das <sandipan.osd@gmail.com>
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Link: http://lkml.kernel.org/r/b1f04f9f-fa46-c2a0-7693-4a0679d2a1ee@oracle.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/hugetlb.c | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 786004514d10..8852b0b12270 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3212,8 +3212,11 @@ static int __init hugetlb_init(void) { int i; - if (!hugepages_supported()) + if (!hugepages_supported()) { + if (hugetlb_max_hstate || default_hstate_max_huge_pages) + pr_warn("HugeTLB: huge pages not supported, ignoring associated command-line parameters\n"); return 0; + } /* * Make sure HPAGE_SIZE (HUGETLB_PAGE_ORDER) hstate exists. Some @@ -3315,11 +3318,6 @@ static int __init hugepages_setup(char *s) unsigned long *mhp; static unsigned long *last_mhp; - if (!hugepages_supported()) { - pr_warn("HugeTLB: huge pages not supported, ignoring hugepages = %s\n", s); - return 0; - } - if (!parsed_valid_hugepagesz) { pr_warn("HugeTLB: hugepages=%s does not follow a valid hugepagesz, ignoring\n", s); parsed_valid_hugepagesz = true; @@ -3372,11 +3370,6 @@ static int __init hugepagesz_setup(char *s) struct hstate *h; parsed_valid_hugepagesz = false; - if (!hugepages_supported()) { - pr_warn("HugeTLB: huge pages not supported, ignoring hugepagesz = %s\n", s); - return 0; - } - size = (unsigned long)memparse(s, NULL); if (!arch_hugetlb_valid_size(size)) { @@ -3424,11 +3417,6 @@ static int __init default_hugepagesz_setup(char *s) unsigned long size; parsed_valid_hugepagesz = false; - if (!hugepages_supported()) { - pr_warn("HugeTLB: huge pages not supported, ignoring default_hugepagesz = %s\n", s); - return 0; - } - if (parsed_default_hugepagesz) { pr_err("HugeTLB: default_hugepagesz previously specified, ignoring %s\n", s); return 0; |