Diffusion FreeBSD src repository 0012f373e43d

(4/6) Protect page valid with the busy lock.
0012f373e43d
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Description

(4/6) Protect page valid with the busy lock.

Atomics are used for page busy and valid state when the shared busy is
held. The details of the locking protocol and valid and dirty
synchronization are in the updated vm_page.h comments.

Reviewed by: kib, markj
Tested by: pho
Sponsored by: Netflix, Intel
Differential Revision: https://reviews.freebsd.org/D21594

Details

Provenance

jeff	Authored on Oct 15 2019, 3:45 AM

Parents

rG205be21d997d: (3/6) Add a shared object busy synchronization mechanism that blocks new page

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Event Timeline

Changes (30)

Path

Size

sys/

amd64/

sgx/

sgx.c

cddl/

contrib/

opensolaris/

uts/

common/

fs/

zfs/

dmu.c

zfs_vnops.c

compat/

linuxkpi/

common/

src/

linux_compat.c

dev/

drm2/

ttm/

md/

netmap/

xen/

gntdev/

gntdev.c

privcmd/

privcmd.c

fs/

nfsclient/

smbfs/

tmpfs/

kern/

vm/

rG0012f373e43d

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sys/amd64/sgx/sgx.c

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sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c

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sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c

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sys/compat/linuxkpi/common/src/linux_compat.c

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sys/dev/drm2/ttm/ttm_bo_vm.c

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sys/dev/drm2/ttm/ttm_tt.c

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sys/dev/md/md.c

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sys/dev/netmap/netmap_freebsd.c

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sys/dev/xen/gntdev/gntdev.c

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sys/dev/xen/privcmd/privcmd.c

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sys/fs/nfsclient/nfs_clbio.c

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sys/fs/smbfs/smbfs_io.c

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sys/fs/tmpfs/tmpfs_subr.c

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sys/kern/kern_exec.c

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sys/kern/uipc_shm.c

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sys/kern/vfs_bio.c

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sys/kern/vfs_cluster.c

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sys/vm/device_pager.c

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sys/vm/phys_pager.c

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sys/vm/sg_pager.c

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sys/vm/swap_pager.c

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sys/vm/vm_fault.c

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sys/vm/vm_map.c

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sys/vm/vm_mmap.c

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sys/vm/vm_object.c

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sys/vm/vm_page.c

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sys/vm/vm_page.h

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sys/vm/vm_pageout.c

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sys/vm/vm_swapout.c

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(4/6) Protect page valid with the busy lock.0012f373e43dActions

Description

Details

Event Timeline

Changes (30)

rG0012f373e43d

sys/amd64/sgx/sgx.c

sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c

sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c

sys/compat/linuxkpi/common/src/linux_compat.c

sys/dev/drm2/ttm/ttm_bo_vm.c

sys/dev/drm2/ttm/ttm_tt.c

sys/dev/md/md.c

sys/dev/netmap/netmap_freebsd.c

sys/dev/xen/gntdev/gntdev.c

sys/dev/xen/privcmd/privcmd.c

sys/fs/nfsclient/nfs_clbio.c

sys/fs/smbfs/smbfs_io.c

sys/fs/tmpfs/tmpfs_subr.c

sys/kern/kern_exec.c

sys/kern/uipc_shm.c

sys/kern/vfs_bio.c

sys/kern/vfs_cluster.c

sys/vm/device_pager.c

sys/vm/phys_pager.c

sys/vm/sg_pager.c

sys/vm/swap_pager.c

sys/vm/vm_fault.c

sys/vm/vm_map.c

sys/vm/vm_mmap.c

sys/vm/vm_object.c

sys/vm/vm_page.c

sys/vm/vm_page.h

sys/vm/vm_pageout.c

sys/vm/vm_swapout.c

sys/vm/vnode_pager.c

(4/6) Protect page valid with the busy lock.
0012f373e43d
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