Date: Sat, 3 Apr 2010 08:39:00 +0000 (UTC) From: Andriy Gapon <avg@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern vfs_vnops.c Message-ID: <201004030839.o338dFDM003766@repoman.freebsd.org>
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avg 2010-04-03 08:39:00 UTC
FreeBSD src repository
Modified files:
sys/kern vfs_vnops.c
Log:
SVN rev 206129 on 2010-04-03 08:39:00Z by avg
vn_stat: take into account va_blocksize when setting st_blksize
As currently st_blksize is always PAGE_SIZE, it is playing safe to not
use any smaller value. For some cases this might not be optimal, but
at least nothing should get broken.
Generally I don't expect this commit to change much for the following
reasons (in case of VREG, VDIR):
- application I/O and physical I/O are sufficiently decoupled by
filesystem code, buffer cache code, cluster and read-ahead logic
- not all applications use st_blksize as a hint, some use f_iosize, some
use fixed block sizes
I expect writes to the middle of files on ZFS to benefit the most from
this change.
Silence from: fs@
MFC after: 2 weeks
Revision Changes Path
1.295 +2 -3 src/sys/kern/vfs_vnops.c
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