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Searched refs:reservations (Results 1 – 23 of 23) sorted by relevance

/linux/Documentation/admin-guide/cgroup-v1/
H A Dhugetlb.rst24 …ugepagesize>.rsvd.limit_in_bytes # set/show limit of "hugepagesize" hugetlb reservations
25 …ize>.rsvd.max_usage_in_bytes # show max "hugepagesize" hugetlb reservations and no-reserve …
26 …hugetlb.<hugepagesize>.rsvd.usage_in_bytes # show current reservations and no-reserve f…
94 The HugeTLB controller allows to limit the HugeTLB reservations per control
127 When a HugeTLB cgroup goes offline with some reservations or faults still
134 reservations charged to it, that cgroup persists as a zombie until all HugeTLB
135 reservations are uncharged. HugeTLB reservations behave in this manner to match
137 memory is uncharged. Also, the tracking of HugeTLB reservations is a bit more
139 harder to reparent reservations at offline time.
/linux/Documentation/mm/
H A Dhugetlbfs_reserv.rst62 region in the reserv_map may indicate reservations exist for the
63 range, or reservations do not exist.
68 Indicates this task is the owner of the reservations
112 was specified, then this routine returns immediately as no reservations
122 in which reservations are represented in the reservation map.
125 exists or did exist for the corresponding page. As reservations are
128 a reservation exists for the corresponding page. As reservations are
130 reservation map can also be used to determine which reservations have
135 to indicate this VMA owns the reservations.
137 The reservation map is consulted to determine how many huge page reservations
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/linux/fs/bcachefs/
H A Djournal.c47 return __journal_entry_is_open(j->reservations); in journal_entry_is_open()
52 union journal_res_state s = READ_ONCE(j->reservations); in bch2_journal_buf_to_text()
198 if (!journal_state_count(j->reservations, idx)) { in bch2_journal_do_writes()
245 old.v = atomic64_read(&j->reservations.counter); in __journal_entry_close()
253 } while (!atomic64_try_cmpxchg(&j->reservations.counter, in __journal_entry_close()
459 old.v = atomic64_read(&j->reservations.counter); in journal_entry_open()
473 } while (!atomic64_try_cmpxchg(&j->reservations.counter, in journal_entry_open()
506 if (__journal_entry_is_open(j->reservations)) { in journal_write_work()
691 state = READ_ONCE(j->reservations); in bch2_journal_entry_res_resize()
924 j->reservations.cur_entry_offset == JOURNAL_ENTRY_BLOCKED_VAL) { in bch2_journal_unblock()
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H A Djournal.h126 return j->buf + j->reservations.idx; in journal_cur_buf()
262 }).v, &j->reservations.counter); in journal_state_buf_put()
332 old.v = atomic64_read(&j->reservations.counter); in journal_res_get_fast()
360 } while (!atomic64_try_cmpxchg(&j->reservations.counter, in journal_res_get_fast()
416 return j->reservations.cur_entry_offset == JOURNAL_ENTRY_ERROR_VAL in bch2_journal_error()
H A Djournal_types.h183 union journal_res_state reservations; member
H A Djournal_io.c1674 old.v = atomic64_read(&j->reservations.counter); in CLOSURE_CALLBACK()
1681 } while (!atomic64_try_cmpxchg(&j->reservations.counter, in CLOSURE_CALLBACK()
/linux/Documentation/filesystems/
H A Docfs2.rst99 resv_level=2 (*) Set how aggressive allocation reservations will be.
100 Valid values are between 0 (reservations off) to 8
101 (maximum space for reservations).
102 dir_resv_level= (*) By default, directory reservations will scale with file
103 reservations - users should rarely need to change this
104 value. If allocation reservations are turned off, this
/linux/Documentation/arch/arm64/
H A Dkdump.rst31 For kdump reservations, low memory is the memory area under a specific
66 reservations. The user would not need to know the system memory layout
75 many systems the low memory is precious and crashkernel reservations
/linux/fs/ocfs2/
H A DMakefile31 reservations.o \
/linux/Documentation/block/
H A Dpr.rst16 All implementations are expected to ensure the reservations survive
22 The following types of reservations are supported:
/linux/Documentation/filesystems/xfs/
H A Dxfs-delayed-logging-design.rst16 transaction reservations are structured and accounted, and then move into how we
18 reservations bounds. At this point we need to explain how relogging works. With
59 transactions. Permanent transaction reservations can take reservations that span
65 modifications, but one-shot reservations cannot be used for permanent
156 journal. This is achieved by the transaction reservations that are made when
157 a transaction is first allocated. For permanent transactions, these reservations
166 of the btree. As such, the reservations are quite complex because we have to
204 reservations. That multiple is defined by the reservation log count, and this
233 reservations currently held by active transactions. It is a purely in-memory
240 reservations amounts and the exact byte count that modifications actually make
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/linux/Documentation/admin-guide/nfs/
H A Dpnfs-scsi-server.rst21 option and the underlying SCSI device support persistent reservations.
/linux/fs/btrfs/
H A Dblock-group.h232 atomic_t reservations; member
H A Dblock-group.c372 if (atomic_dec_and_test(&bg->reservations)) in btrfs_dec_block_group_reservations()
373 wake_up_var(&bg->reservations); in btrfs_dec_block_group_reservations()
399 wait_var_event(&bg->reservations, !atomic_read(&bg->reservations)); in btrfs_wait_block_group_reservations()
H A Dextent-tree.c2708 atomic_inc(&bg->reservations); in btrfs_inc_block_group_reservations()
/linux/Documentation/bpf/
H A Dringbuf.rst179 a strict ordering between reservations. Commits, on the other hand, are
181 in the order of reservations, but only after all previous records where
/linux/Documentation/filesystems/iomap/
H A Ddesign.rst344 They need to avoid waiting on transaction reservations to allow
369 For example, a write might wish to commit the reservations for the bytes
/linux/Documentation/driver-api/
H A Ddma-buf.rst349 reservations for DMA fence workloads.
/linux/Documentation/arch/powerpc/
H A Dfirmware-assisted-dump.rst298 file will change to reflect the new memory reservations.
/linux/mm/
H A Dhugetlb.c1240 struct resv_map *reservations = vma_resv_map(vma); in clear_vma_resv_huge_pages() local
1242 if (reservations && is_vma_resv_set(vma, HPAGE_RESV_OWNER)) { in clear_vma_resv_huge_pages()
1243 resv_map_put_hugetlb_cgroup_uncharge_info(reservations); in clear_vma_resv_huge_pages()
1244 kref_put(&reservations->refs, resv_map_release); in clear_vma_resv_huge_pages()
/linux/Documentation/driver-api/usb/
H A Dusb.rst937 With the Linux-USB stack, periodic bandwidth reservations use the
/linux/Documentation/networking/dsa/
H A Ddsa.rst507 reservations per port and per traffic class, in the ingress and egress
/linux/Documentation/admin-guide/
H A Dkernel-parameters.txt4702 use_e820 [X86] Use E820 reservations to exclude parts of
4707 no_e820 [X86] Ignore E820 reservations for PCI host