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| author | Matthew Wilcox (Oracle) <[email protected]> | 2023-09-20 03:53:35 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2023-09-30 00:20:45 +0000 |
| commit | a501a0703044f00180d7697b32cacd7ff46d02d8 (patch) | |
| tree | 5f64bdf00b33bd11203e270d0b8d0ab2912d86dd /mm/hugetlb.c | |
| parent | fs: binfmt_elf_efpic: fix personality for ELF-FDPIC (diff) | |
| download | kernel-a501a0703044f00180d7697b32cacd7ff46d02d8.tar.gz kernel-a501a0703044f00180d7697b32cacd7ff46d02d8.zip | |
mm: report success more often from filemap_map_folio_range()
Even though we had successfully mapped the relevant page, we would rarely
return success from filemap_map_folio_range(). That leads to falling back
from the VMA lock path to the mmap_lock path, which is a speed &
scalability issue. Found by inspection.
Link: https://lkml.kernel.org/r/[email protected]
Fixes: 617c28ecab22 ("filemap: batch PTE mappings")
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Reviewed-by: Yin Fengwei <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'mm/hugetlb.c')
0 files changed, 0 insertions, 0 deletions