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| author | Richard Braun <rbraun@sceen.net> | 2013-05-03 19:56:50 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-09-16 01:22:20 +0200 |
| commit | 0e847864cef404f555387d7fcc97f7dbe769e1e9 (patch) | |
| tree | dbafbabcd1491b4840914d60358cf153beed9af8 /libpager/data-request.c | |
| parent | b2e27fcee4cec98ffc39273ecfaa73aace9da2c3 (diff) | |
Handle notification on page eviction
If requested by the user, make libpager call pager_notify_evict when a page
is flushed out by the kernel. Based on work by Ognyan Kulev.
* console/pager.c (pager_notify_evict): New function.
(user_pager_create): Update call to pager_create.
* ext2fs/pager.c: (pager_notify_evict): New function.
(create_disk_pager): Update call to diskfs_start_disk_pager.
(diskfs_get_filemap): Update call to pager_create.
* fatfs/pager.c: (pager_notify_evict): New function.
(create_fat_pager): Update call to diskfs_start_disk_pager.
(diskfs_get_filemap): Update call to pager_create.
* isofs/pager.c: (pager_notify_evict): New function.
(create_disk_pager): Update call to diskfs_start_disk_pager.
(diskfs_get_filemap): Update call to pager_create.
* libdiskfs/disk-pager.c (diskfs_start_disk_pager): Update definition and call
to pager_create.
* libdiskfs/diskfs-pager.h (diskfs_start_disk_pager): Update declaration.
* libpager/data-request.c (_pager_seqnos_memory_object_data_request): Take
pager's `notify_on_evict' member into account when calling
memory_object_data_supply.
* libpager/data-return.c (_pager_do_write_request): Handle user notification
on page flush.
* libpager/pager-create.c (pager_create): Update definition and set pager's
`notify_on_evict' member.
* libpager/pager.h (pager_create): Update declaration.
(pager_notify_evict): New declaration.
* libpager/priv.h (struct pager): New `notify_on_evict' member.
* storeio/pager.c: (pager_notify_evict): New function.
(dev_get_memory_object): Update call to pager_create.
* tmpfs/pager-stubs.c (pager_notify_evict): New function.
* ufs/pager.c (pager_notify_evict): New function.
(create_disk_pager): Update call to diskfs_start_disk_pager.
(diskfs_get_filemap): Update call to pager_create.
Diffstat (limited to 'libpager/data-request.c')
| -rw-r--r-- | libpager/data-request.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libpager/data-request.c b/libpager/data-request.c index 4454facb..34b8b438 100644 --- a/libpager/data-request.c +++ b/libpager/data-request.c @@ -119,7 +119,8 @@ _pager_seqnos_memory_object_data_request (mach_port_t object, goto error_read; memory_object_data_supply (p->memobjcntl, offset, page, length, 1, - write_lock ? VM_PROT_WRITE : VM_PROT_NONE, 0, + write_lock ? VM_PROT_WRITE : VM_PROT_NONE, + p->notify_on_evict ? 1 : 0, MACH_PORT_NULL); pthread_mutex_lock (&p->interlock); _pager_mark_object_error (p, offset, length, 0); |