diff options
Diffstat (limited to 'sys/fs')
| -rw-r--r-- | sys/fs/nfsclient/nfs_clvfsops.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/sys/fs/nfsclient/nfs_clvfsops.c b/sys/fs/nfsclient/nfs_clvfsops.c index 6b09356..4cbbb24 100644 --- a/sys/fs/nfsclient/nfs_clvfsops.c +++ b/sys/fs/nfsclient/nfs_clvfsops.c @@ -621,17 +621,27 @@ nfs_decode_args(struct mount *mp, struct nfsmount *nmp, struct nfs_args *argp, if ((argp->flags & NFSMNT_WSIZE) && argp->wsize > 0) { nmp->nm_wsize = argp->wsize; - /* Round down to multiple of blocksize */ - nmp->nm_wsize &= ~(NFS_FABLKSIZE - 1); - if (nmp->nm_wsize <= 0) + /* + * Clip at the power of 2 below the size. There is an + * issue (not isolated) that causes intermittent page + * faults if this is not done. + */ + if (nmp->nm_wsize > NFS_FABLKSIZE) + nmp->nm_wsize = 1 << (fls(nmp->nm_wsize) - 1); + else nmp->nm_wsize = NFS_FABLKSIZE; } if ((argp->flags & NFSMNT_RSIZE) && argp->rsize > 0) { nmp->nm_rsize = argp->rsize; - /* Round down to multiple of blocksize */ - nmp->nm_rsize &= ~(NFS_FABLKSIZE - 1); - if (nmp->nm_rsize <= 0) + /* + * Clip at the power of 2 below the size. There is an + * issue (not isolated) that causes intermittent page + * faults if this is not done. + */ + if (nmp->nm_rsize > NFS_FABLKSIZE) + nmp->nm_rsize = 1 << (fls(nmp->nm_rsize) - 1); + else nmp->nm_rsize = NFS_FABLKSIZE; } |
