lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Message-Id: <1215279378-30504-3-git-send-email-tytso@mit.edu> Date: Sat, 5 Jul 2008 13:35:28 -0400 From: Theodore Ts'o <tytso@....edu> To: Ext4 Developers List <linux-ext4@...r.kernel.org>, Linux Kernel Developers List <linux-kernel@...r.kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>, Mingming Cao <cmm@...ibm.com>, "Theodore Ts'o" <tytso@....edu> Subject: [PATCH 02/52] ext4: start searching for the right extent from the goal group. From: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com> With mballoc we search for the best extent using different criteria. We should always use the goal group when we are starting with a new criteria. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@...ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@....edu> --- fs/ext4/mballoc.c | 10 ++++++---- 1 files changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index c9900aa..e4b1ea3 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -1730,10 +1730,6 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac) ac->ac_g_ex.fe_start = sbi->s_mb_last_start; spin_unlock(&sbi->s_md_lock); } - - /* searching for the right group start from the goal value specified */ - group = ac->ac_g_ex.fe_group; - /* Let's just scan groups to find more-less suitable blocks */ cr = ac->ac_2order ? 0 : 1; /* @@ -1743,6 +1739,12 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac) repeat: for (; cr < 4 && ac->ac_status == AC_STATUS_CONTINUE; cr++) { ac->ac_criteria = cr; + /* + * searching for the right group start + * from the goal value specified + */ + group = ac->ac_g_ex.fe_group; + for (i = 0; i < EXT4_SB(sb)->s_groups_count; group++, i++) { struct ext4_group_info *grp; struct ext4_group_desc *desc; -- 1.5.6.rc3.1.g36b7.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists