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Searched refs:_refcount (Results 1 – 13 of 13) sorted by relevance

/openbmc/linux/include/linux/
H A Dpage_ref.h67 return atomic_read(&page->_refcount); in page_ref_count()
99 atomic_set(&page->_refcount, v); in set_page_count()
120 atomic_add(nr, &page->_refcount); in page_ref_add()
132 atomic_sub(nr, &page->_refcount); in page_ref_sub()
144 int ret = atomic_sub_return(nr, &page->_refcount); in page_ref_sub_return()
158 atomic_inc(&page->_refcount); in page_ref_inc()
170 atomic_dec(&page->_refcount); in page_ref_dec()
182 int ret = atomic_sub_and_test(nr, &page->_refcount); in page_ref_sub_and_test()
196 int ret = atomic_inc_return(&page->_refcount); in page_ref_inc_return()
210 int ret = atomic_dec_and_test(&page->_refcount); in page_ref_dec_and_test()
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H A Dmm_types.h181 atomic_t _refcount; member
317 atomic_t _refcount; member
372 FOLIO_MATCH(_refcount, _refcount);
442 atomic_t _refcount; member
456 TABLE_MATCH(_refcount, _refcount);
/openbmc/linux/arch/s390/mm/
H A Dpgalloc.c258 mask = atomic_read(&ptdesc->_refcount) >> 24; in page_table_alloc()
274 atomic_xor_bits(&ptdesc->_refcount, in page_table_alloc()
297 atomic_xor_bits(&ptdesc->_refcount, 0x03U << 24); in page_table_alloc()
302 atomic_xor_bits(&ptdesc->_refcount, 0x01U << 24); in page_table_alloc()
349 mask = atomic_xor_bits(&ptdesc->_refcount, 0x11U << (bit + 24)); in page_table_free()
363 mask = atomic_xor_bits(&ptdesc->_refcount, 0x10U << (bit + 24)); in page_table_free()
370 mask = atomic_xor_bits(&ptdesc->_refcount, 0x03U << 24); in page_table_free()
402 mask = atomic_xor_bits(&ptdesc->_refcount, 0x11U << (bit + 24)); in page_table_free_rcu()
433 mask = atomic_xor_bits(&ptdesc->_refcount, mask << (4 + 24)); in __tlb_remove_table()
439 mask = atomic_xor_bits(&ptdesc->_refcount, 0x03U << 24); in __tlb_remove_table()
/openbmc/linux/Documentation/mm/
H A Dtranshuge.rst113 - get_page()/put_page() and GUP operate on the folio->_refcount.
115 - ->_refcount in tail pages is always zero: get_page_unless_zero() never
137 split_huge_page uses migration entries to stabilize page->_refcount and
143 All tail pages have zero ->_refcount until atomic_add(). This prevents the
145 atomic_add() we don't care about the ->_refcount value. We already know how
/openbmc/linux/Documentation/core-api/
H A Dpin_user_pages.rst104 * Given the above, we can overload the page->_refcount field by using, sort of,
106 rather than dividing page->_refcount into bit fields, we simple add a medium-
108 page->_refcount. This provides fuzzy behavior: if a page has get_page() called
/openbmc/linux/mm/
H A Dmemremap.c546 wake_up_var(&page->_refcount); in __put_devmap_managed_page_refs()
H A Dslab.h113 SLAB_MATCH(_refcount, __page_refcount);
/openbmc/linux/fs/fuse/
H A Ddax.c679 return ___wait_var_event(&page->_refcount, in __fuse_dax_break_layouts()
680 atomic_read(&page->_refcount) == 1, TASK_INTERRUPTIBLE, in __fuse_dax_break_layouts()
/openbmc/linux/fs/xfs/
H A Dxfs_file.c882 return ___wait_var_event(&page->_refcount, in xfs_break_dax_layouts()
883 atomic_read(&page->_refcount) == 1, TASK_INTERRUPTIBLE, in xfs_break_dax_layouts()
/openbmc/linux/kernel/
H A Dcrash_core.c641 VMCOREINFO_OFFSET(page, _refcount); in crash_save_vmcoreinfo_init()
/openbmc/linux/Documentation/admin-guide/kdump/
H A Dvmcoreinfo.rst144 (page, flags|_refcount|mapping|lru|_mapcount|private|compound_order|compound_head)
/openbmc/linux/drivers/net/ethernet/cavium/thunder/
H A Dnicvf_queues.c170 prefetch(&page->_refcount); in nicvf_alloc_page()
/openbmc/linux/fs/ext4/
H A Dinode.c3914 error = ___wait_var_event(&page->_refcount, in ext4_break_layouts()
3915 atomic_read(&page->_refcount) == 1, in ext4_break_layouts()