summaryrefslogtreecommitdiff
path: root/staging
diff options
context:
space:
mode:
authorKartik Mistry <kartik.mistry@gmail.com>2014-05-02 11:10:57 +0530
committerTobias Klauser <tklauser@distanz.ch>2014-05-03 13:39:55 +0200
commit5381fe4fed17e813d41424ae29995d8624197a54 (patch)
tree5e6fc601789ddc558aa2f29d036219f7add17648 /staging
parent7aa9f970e88382f2508ee55122e27cdcfd8cdbda (diff)
doc: Fix typos in mausezahn and trafgen manpages
Fixed typos in mausezahn.8 and trafgen.8 [tklauser: Slightly edited commit message] Signed-off-by: Kartik Mistry <kartik.mistry@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'staging')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-01-22 20:39:27 +0000
et-next.git/diff/tools/lib/traceevent/parse-utils.c?h=nds-private-remove&id=b0b9b3df27d100a975b4e8818f35382b64a5e35c&id2=87bc610730a944b49f1c53ab9f4230d85f35df0c'>diff)
mm: stop leaking PageTables
4.10-rc loadtest (even on x86, and even without THPCache) fails with "fork: Cannot allocate memory" or some such; and /proc/meminfo shows PageTables growing. Commit 953c66c2b22a ("mm: THP page cache support for ppc64") that got merged in rc1 removed the freeing of an unused preallocated pagetable after do_fault_around() has called map_pages(). This is usually a good optimization, so that the followup doesn't have to reallocate one; but it's not sufficient to shift the freeing into alloc_set_pte(), since there are failure cases (most commonly VM_FAULT_RETRY) which never reach finish_fault(). Check and free it at the outer level in do_fault(), then we don't need to worry in alloc_set_pte(), and can restore that to how it was (I cannot find any reason to pte_free() under lock as it was doing). And fix a separate pagetable leak, or crash, introduced by the same change, that could only show up on some ppc64: why does do_set_pmd()'s failure case attempt to withdraw a pagetable when it never deposited one, at the same time overwriting (so leaking) the vmf->prealloc_pte? Residue of an earlier implementation, perhaps? Delete it. Fixes: 953c66c2b22a ("mm: THP page cache support for ppc64") Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Neuling <mikey@neuling.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Balbir Singh <bsingharora@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/lib/traceevent/parse-utils.c')