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b6f1c3fccc
freebsd-skq/sys
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pjd b6f1c3fccc Fix a problem for file systems that don't implement VOP_BMAP() operation. 
The problem is this: vm_fault_additional_pages() calls vm_pager_has_page(),
which calls vnode_pager_haspage(). Now when VOP_BMAP() returns an error (eg.
EOPNOTSUPP), vnode_pager_haspage() returns TRUE without initializing 'before'
and 'after' arguments, so we have some accidental values there. This bascially
was causing this condition to be meet:

	if ((rahead + rbehind) >
	    ((cnt.v_free_count + cnt.v_cache_count) - cnt.v_free_reserved)) {
		pagedaemon_wakeup();
		[...]
	}

(we have some random values in rahead and rbehind variables)

I'm not entirely sure this is the right fix, maybe we should just return FALSE
in vnode_pager_haspage() when VOP_BMAP() fails?

alc@ knows about this problem, maybe he will be able to come up with a better
fix if this is not the right one.
2007-04-05 20:49:46 +00:00
..
amd64 MFP4: Turn emul_lock into a mutex. 2007-04-02 18:38:13 +00:00
arm Don't expose the uart_ops structure directly, but instead have 2007-04-02 22:00:22 +00:00
boot Loop on sdcard init. This helps if one hasn't plugged in the card 2007-04-02 20:26:04 +00:00
bsm
cam A silly buglet found by Coverity- check the return value from 2007-03-15 06:42:54 +00:00
coda Make insmntque() externally visibile and allow it to fail (e.g. during 2007-03-13 01:50:27 +00:00
compat Replace custom file descriptor array sleep lock constructed using a mutex 2007-04-04 09:11:34 +00:00
conf Retire unused TCP_SACK_DEBUG. 2007-04-04 14:44:15 +00:00
contrib Add an interface for drivers to be notified of changes to CPU frequency. 2007-03-26 18:03:29 +00:00
crypto Overhaul driver/subsystem api's: 2007-03-21 03:42:51 +00:00
ddb Use FOREACH_PROC_IN_SYSTEM instead of using its unrolled form. 2007-01-17 15:05:52 +00:00
dev Add PCI IDs for the HP RMP3 serial port. This is often used as 2007-04-05 19:15:46 +00:00
fs Whitespace nits. 2007-04-05 13:43:00 +00:00
gdb
geom - Be more verbose when saying "foo" not found. 2007-03-30 16:32:08 +00:00
gnu Change #include <machine/pcpu.h> to #include <sys/pcpu.h> 2007-04-01 12:48:10 +00:00
i4b Tell the user when the setup of the interrupt handler failed and return 2007-04-01 16:52:54 +00:00
i386 MFP4: Turn emul_lock into a mutex. 2007-04-02 18:38:13 +00:00
ia64 Catch up with ACPI-CA 20070320 import. 2007-03-22 18:16:43 +00:00
isa Partial fix for a bug in rev.1.231. If suspend/resume clobbers the 2007-03-05 09:10:17 +00:00
kern Fix mb_ctor_clust and mb_dtor_clust to reference the appropriate zone, 2007-04-04 21:27:01 +00:00
libkern
modules oops, another missed file from crypto api change 2007-03-31 23:15:11 +00:00
net Fix regression in rev. 1.140. 2007-03-27 19:36:12 +00:00
net80211 change ic_modecaps to a bit vector and use setbit, et. al. 2007-03-11 22:37:32 +00:00
netatalk Use privilege PRIV_NET_ADDIFADDR rather than suser() to authorize 2007-02-19 22:40:02 +00:00
netatm Fix use after free bug: use temporary variable to hold next entry in linked 2007-04-03 12:45:10 +00:00
netgraph We don't need spinning locks here. Change them to the adaptive mutexes. This 2007-03-31 15:43:06 +00:00
netinet Add INP_INFO_UNLOCK_ASSERT() and use it in tcp_input(). Also add some 2007-04-04 18:30:16 +00:00
netinet6 - fixed several places where we did not release INP locks. 2007-04-03 11:15:32 +00:00
netipsec add include now required for crypto flags 2007-03-22 22:25:25 +00:00
netipx Build ipx_ip.c only if options IPXIP is defined. No functional change. 2007-02-26 11:55:34 +00:00
netkey
netnatm Factor out my copyrights + licenses from Charles D. Cranor and 2007-01-08 22:30:39 +00:00
netncp Use pause() rather than tsleep() on stack variables and function pointers. 2007-02-27 17:23:29 +00:00
netsmb Replace custom file descriptor array sleep lock constructed using a mutex 2007-04-04 09:11:34 +00:00
nfs NFSv4 client: 2006-11-28 19:33:28 +00:00
nfs4client Rename some functions and variables from nfs_* to nfs4_* to avoid 2007-01-25 14:33:13 +00:00
nfsclient Don't destroy a mutex just before we use it, instead, 2007-03-23 08:52:36 +00:00
nfsserver - Split out the part of SYSCALL_MODULE_HELPER() that builds a 'struct 2007-04-02 13:53:26 +00:00
opencrypto Replace custom file descriptor array sleep lock constructed using a mutex 2007-04-04 09:11:34 +00:00
pc98 Don't call bus_deactivate_resource() explicitly before calling 2007-03-21 03:38:37 +00:00
pccard
pci Add new ST201 PCI id. 2007-03-10 03:10:34 +00:00
powerpc If nooption SMP on powerpc, also nooption ADAPTIVE_SX, which depends on 2007-04-01 11:10:16 +00:00
rpc Replace GIANT_REQUIRED's present for socket locking with NET_LOCK_GIANT(). 2007-03-25 21:44:24 +00:00
security Replace custom file descriptor array sleep lock constructed using a mutex 2007-04-04 09:11:34 +00:00
sparc64 Push down the implementation of PCPU_LAZY_INC() into the machine-dependent 2007-03-11 05:54:29 +00:00
sun4v Remove extern struct pcb stoppcbs[] declaration from this file. 2007-04-05 18:34:11 +00:00
sys Hide lbolt under _SOLARIS_C_SOURCE in preparation for ZFS import. 2007-04-05 20:40:47 +00:00
tools Catch up with ACPI-CA 20070320 import. 2007-03-22 18:16:43 +00:00
ufs Use *_EMPTY macros when appropriate. 2007-04-04 07:29:53 +00:00
vm Fix a problem for file systems that don't implement VOP_BMAP() operation. 2007-04-05 20:49:46 +00:00
Makefile o Remove isofs from the cscope dirs list. Its content was 2007-03-24 22:21:01 +00:00