From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Josef 'Jeff' Sipek" Subject: [PATCH 1/3] fs/unionfs/: Use __roundup_pow_of_two instead of custom rounding code Date: Mon, 12 Feb 2007 13:30:50 -0500 Message-ID: <11713050522466-git-send-email-jsipek@cs.sunysb.edu> References: <11713050521708-git-send-email-jsipek@cs.sunysb.edu> Cc: akpm@linux-foundation.org, "Josef 'Jeff' Sipek" To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Return-path: In-Reply-To: <11713050521708-git-send-email-jsipek@cs.sunysb.edu> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Signed-off-by: Josef 'Jeff' Sipek --- fs/unionfs/rdstate.c | 11 ++--------- fs/unionfs/union.h | 1 + 2 files changed, 3 insertions(+), 9 deletions(-) diff --git a/fs/unionfs/rdstate.c b/fs/unionfs/rdstate.c index 16ce1bf..e240285 100644 --- a/fs/unionfs/rdstate.c +++ b/fs/unionfs/rdstate.c @@ -115,19 +115,12 @@ struct unionfs_dir_state *alloc_rdstate(struct inode *inode, int bindex) { int i = 0; int hashsize; - int mallocsize = sizeof(struct unionfs_dir_state); + unsigned long mallocsize = sizeof(struct unionfs_dir_state); struct unionfs_dir_state *rdstate; hashsize = guesstimate_hash_size(inode); mallocsize += hashsize * sizeof(struct list_head); - /* Round it up to the next highest power of two. */ - mallocsize--; - mallocsize |= mallocsize >> 1; - mallocsize |= mallocsize >> 2; - mallocsize |= mallocsize >> 4; - mallocsize |= mallocsize >> 8; - mallocsize |= mallocsize >> 16; - mallocsize++; + mallocsize = __roundup_pow_of_two(mallocsize); /* This should give us about 500 entries anyway. */ if (mallocsize > PAGE_SIZE) diff --git a/fs/unionfs/union.h b/fs/unionfs/union.h index 8e9a1cc..fc87b03 100644 --- a/fs/unionfs/union.h +++ b/fs/unionfs/union.h @@ -41,6 +41,7 @@ #include #include #include +#include #include #include -- 1.5.0.rc3.g5057