| commit | 96150606e2fb82d242c9e4a414e4e922849f7bf7 | |
| author | Prasad Joshi <prasadjoshi.linux@gmail.com> | |
| Sat, 26 Nov 2011 05:30:47 +0000 (26 11:00 +0530) | ||
| committer | Prasad Joshi <prasadjoshi.linux@gmail.com> | |
| Sat, 28 Jan 2012 05:53:10 +0000 (28 11:23 +0530) | ||
| tree | efdb8a85b5838aa13e6c233ebec580c1f956be5d | treesnapshot (tar.gz zip) |
| parent | f423fc627b05f47bc9305f9661630fce30f208f9 | commitdiff |
logfs: update page reference count for pined pages
LogFS sets PG_private flag to indicate a pined page. We assumed that
marking a page as private is enough to ensure its existence. But
instead it is necessary to hold a reference count to the page.
The change resolves the following BUG
BUG: Bad page state in process flush-253:16 pfn:6a6d0
page flags: 0x100000000000808(uptodate|private)
Suggested-and-Acked-by: Joern Engel <joern@logfs.org>
Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com>
LogFS sets PG_private flag to indicate a pined page. We assumed that
marking a page as private is enough to ensure its existence. But
instead it is necessary to hold a reference count to the page.
The change resolves the following BUG
BUG: Bad page state in process flush-253:16 pfn:6a6d0
page flags: 0x100000000000808(uptodate|private)
Suggested-and-Acked-by: Joern Engel <joern@logfs.org>
Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com>
| fs/logfs/readwrite.c | diffblobblamehistory | |
| fs/logfs/segment.c | diffblobblamehistory |