Date: Wed, 1 Jun 2011 21:00:28 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/fs/nfsclient nfs_clbio.c src/sys/fs/nwfs nwfs_io.c src/sys/fs/smbfs smbfs_io.c src/sys/nfsclient nfs_bio.c src/sys/vm vm_object.c vnode_pager.c vnode_pager.h Message-ID: <201106012100.p51L0nUd075933@repoman.freebsd.org>
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kib 2011-06-01 21:00:28 UTC FreeBSD src repository Modified files: sys/fs/nfsclient nfs_clbio.c sys/fs/nwfs nwfs_io.c sys/fs/smbfs smbfs_io.c sys/nfsclient nfs_bio.c sys/vm vm_object.c vnode_pager.c vnode_pager.h Log: SVN rev 222586 on 2011-06-01 21:00:28Z by kib In the VOP_PUTPAGES() implementations, change the default error from VM_PAGER_AGAIN to VM_PAGER_ERROR for the uwritten pages. Return VM_PAGER_AGAIN for the partially written page. Always forward at least one page in the loop of vm_object_page_clean(). VM_PAGER_ERROR causes the page reactivation and does not clear the page dirty state, so the write is not lost. The change fixes an infinite loop in vm_object_page_clean() when the filesystem returns permanent errors for some page writes. Reported and tested by: gavin Reviewed by: alc, rmacklem MFC after: 1 week Revision Changes Path 1.23 +4 -11 src/sys/fs/nfsclient/nfs_clbio.c 1.57 +3 -8 src/sys/fs/nwfs/nwfs_io.c 1.57 +3 -8 src/sys/fs/smbfs/smbfs_io.c 1.190 +2 -6 src/sys/nfsclient/nfs_bio.c 1.443 +15 -0 src/sys/vm/vm_object.c 1.265 +18 -1 src/sys/vm/vnode_pager.c 1.22 +3 -0 src/sys/vm/vnode_pager.h
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