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Now bfs_write() also don't trigger any notifications during write access

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on uncached files (might be needed for the VM file).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1062 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2002-09-16 16:09:36 +00:00
parent a00ac4bc29
commit 6829a19b3f
1 changed files with 17 additions and 13 deletions
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30
src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp
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@ -1174,21 +1174,25 @@ bfs_write(void *_ns, void *_node, void *_cookie, off_t pos, const void *buffer,
if (status == B_OK)
transaction.Done();
// periodically notify if the file size has changed
// ToDo: should we better test for a change in the last_modified time only?
if (cookie->last_size != inode->Size()
&& system_time() > cookie->last_notification + INODE_NOTIFICATION_INTERVAL) {
notify_listener(B_STAT_CHANGED, volume->ID(), 0, 0, inode->ID(), NULL);
cookie->last_size = inode->Size();
cookie->last_notification = system_time();
}
if ((inode->Flags() & INODE_NO_CACHE) == 0) {
// uncached files don't cause notifications during access, and
// never want to write back any cached blocks
// This will flush the dirty blocks to disk from time to time.
// It's done here and not in Inode::WriteAt() so that it won't
// add to the duration of a transaction - it might even be a
// good idea to offload those calls to another thread
if ((inode->Flags() & INODE_NO_CACHE) == 0)
// periodically notify if the file size has changed
// ToDo: should we better test for a change in the last_modified time only?
if (cookie->last_size != inode->Size()
&& system_time() > cookie->last_notification + INODE_NOTIFICATION_INTERVAL) {
notify_listener(B_STAT_CHANGED, volume->ID(), 0, 0, inode->ID(), NULL);
cookie->last_size = inode->Size();
cookie->last_notification = system_time();
}
// This will flush the dirty blocks to disk from time to time.
// It's done here and not in Inode::WriteAt() so that it won't
// add to the duration of a transaction - it might even be a
// good idea to offload those calls to another thread
volume->WriteCachedBlocksIfNecessary();
}
return status;
}