Date: Sat, 1 Mar 2008 19:47:50 +0000 (UTC) From: Attilio Rao <attilio@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/usb ehci.c src/sys/fs/nwfs nwfs_subr.c src/sys/kern kern_lock.c vfs_bio.c vfs_subr.c src/sys/netncp ncp_conn.h src/sys/netsmb smb_conn.h src/sys/nfs4client nfs4_idmap.c src/sys/sys buf.h bufobj.h lockmgr.h mount.h vnode.h Message-ID: <200803011947.m21JlpmG067075@repoman.freebsd.org>
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attilio 2008-03-01 19:47:50 UTC
FreeBSD src repository
Modified files:
sys/dev/usb ehci.c
sys/fs/nwfs nwfs_subr.c
sys/kern kern_lock.c vfs_bio.c vfs_subr.c
sys/netncp ncp_conn.h
sys/netsmb smb_conn.h
sys/nfs4client nfs4_idmap.c
sys/sys buf.h bufobj.h lockmgr.h mount.h vnode.h
Log:
- Handle buffer lock waiters count directly in the buffer cache instead
than rely on the lockmgr support [1]:
* bump the waiters only if the interlock is held
* let brelvp() return the waiters count
* rely on brelvp() instead than BUF_LOCKWAITERS() in order to check
for the waiters number
- Remove a namespace pollution introduced recently with lockmgr.h
including lock.h by including lock.h directly in the consumers and
making it mandatory for using lockmgr.
- Modify flags accepted by lockinit():
* introduce LK_NOPROFILE which disables lock profiling for the
specified lockmgr
* introduce LK_QUIET which disables ktr tracing for the specified
lockmgr [2]
* disallow LK_SLEEPFAIL and LK_NOWAIT to be passed there so that it
can only be used on a per-instance basis
- Remove BUF_LOCKWAITERS() and lockwaiters() as they are no longer
used
This patch breaks KPI so __FreBSD_version will be bumped and manpages
updated by further commits. Additively, 'struct buf' changes results in
a disturbed ABI also.
[2] Really, currently there is no ktr tracing in the lockmgr, but it
will be added soon.
[1] Submitted by: kib
Tested by: pho, Andrea Barberio <insomniac at slackware dot it>
Revision Changes Path
1.61 +1 -0 src/sys/dev/usb/ehci.c
1.18 +1 -1 src/sys/fs/nwfs/nwfs_subr.c
1.127 +8 -18 src/sys/kern/kern_lock.c
1.537 +8 -6 src/sys/kern/vfs_bio.c
1.720 +5 -1 src/sys/kern/vfs_subr.c
1.13 +1 -0 src/sys/netncp/ncp_conn.h
1.12 +1 -0 src/sys/netsmb/smb_conn.h
1.7 +1 -0 src/sys/nfs4client/nfs4_idmap.c
1.203 +33 -16 src/sys/sys/buf.h
1.19 +1 -0 src/sys/sys/bufobj.h
1.65 +26 -19 src/sys/sys/lockmgr.h
1.229 +1 -1 src/sys/sys/mount.h
1.331 +1 -8 src/sys/sys/vnode.h
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