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Record proper commit message for r291157.

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The r289895 revision did not accounted for the block containing the
requested page, when calculating the run of pages.  Include the pages
before/after the requested page, that fit into the reqblock, into the
calculation.

Noted by:	glebius
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2015-11-22 09:50:13 +00:00
parent 4586820a07
commit 9af50b0126
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=291158
1 changed files with 1 additions and 1 deletions
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sys/vm/vnode_pager.c
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@ -1082,7 +1082,7 @@ vnode_pager_putpages(vm_object_t object, vm_page_t *m, int count,
/*
* Force synchronous operation if we are extremely low on memory
* to prevent a low-memory deadlock. VOP operations often need to
* allocate more memory to initiate the I/O ( i.e. do a BMAP
* allocate more memory to initiate the I/O ( i.e. do a BMAP
* operation ). The swapper handles the case by limiting the amount
* of asynchronous I/O, but that sort of solution doesn't scale well
* for the vnode pager without a lot of work.