From 4a3ba3dd1754885905f0bd5079a448639065a99d Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Thu, 17 Apr 2008 10:38:59 -0400 Subject: [PATCH] --- yaml --- r: 95037 b: refs/heads/master c: 9a0762c5af40e4aa64fef999967459c98e6ae4c9 h: refs/heads/master i: 95035: db7d75687184467e6ed33c3f25d600d642e9f7ba v: v3 --- [refs] | 2 +- trunk/fs/ext4/mballoc.c | 18 +++++------------- 2 files changed, 6 insertions(+), 14 deletions(-) diff --git a/[refs] b/[refs] index 6fa8f1472b43..6201c7005af3 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 4ddfef7b41aebbbede73f361cb938800ba3072dc +refs/heads/master: 9a0762c5af40e4aa64fef999967459c98e6ae4c9 diff --git a/trunk/fs/ext4/mballoc.c b/trunk/fs/ext4/mballoc.c index 66e1451f64e7..aaaccf5986f9 100644 --- a/trunk/fs/ext4/mballoc.c +++ b/trunk/fs/ext4/mballoc.c @@ -3149,10 +3149,10 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac, { int bsbits, max; ext4_lblk_t end; - struct list_head *cur; loff_t size, orig_size, start_off; ext4_lblk_t start, orig_start; struct ext4_inode_info *ei = EXT4_I(ac->ac_inode); + struct ext4_prealloc_space *pa; /* do normalize only data requests, metadata requests do not need preallocation */ @@ -3238,12 +3238,9 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac, /* check we don't cross already preallocated blocks */ rcu_read_lock(); - list_for_each_rcu(cur, &ei->i_prealloc_list) { - struct ext4_prealloc_space *pa; + list_for_each_entry_rcu(pa, &ei->i_prealloc_list, pa_inode_list) { unsigned long pa_end; - pa = list_entry(cur, struct ext4_prealloc_space, pa_inode_list); - if (pa->pa_deleted) continue; spin_lock(&pa->pa_lock); @@ -3285,10 +3282,8 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac, /* XXX: extra loop to check we really don't overlap preallocations */ rcu_read_lock(); - list_for_each_rcu(cur, &ei->i_prealloc_list) { - struct ext4_prealloc_space *pa; + list_for_each_entry_rcu(pa, &ei->i_prealloc_list, pa_inode_list) { unsigned long pa_end; - pa = list_entry(cur, struct ext4_prealloc_space, pa_inode_list); spin_lock(&pa->pa_lock); if (pa->pa_deleted == 0) { pa_end = pa->pa_lstart + pa->pa_len; @@ -3416,7 +3411,6 @@ ext4_mb_use_preallocated(struct ext4_allocation_context *ac) struct ext4_inode_info *ei = EXT4_I(ac->ac_inode); struct ext4_locality_group *lg; struct ext4_prealloc_space *pa; - struct list_head *cur; /* only data can be preallocated */ if (!(ac->ac_flags & EXT4_MB_HINT_DATA)) @@ -3424,8 +3418,7 @@ ext4_mb_use_preallocated(struct ext4_allocation_context *ac) /* first, try per-file preallocation */ rcu_read_lock(); - list_for_each_rcu(cur, &ei->i_prealloc_list) { - pa = list_entry(cur, struct ext4_prealloc_space, pa_inode_list); + list_for_each_entry_rcu(pa, &ei->i_prealloc_list, pa_inode_list) { /* all fields in this condition don't change, * so we can skip locking for them */ @@ -3457,8 +3450,7 @@ ext4_mb_use_preallocated(struct ext4_allocation_context *ac) return 0; rcu_read_lock(); - list_for_each_rcu(cur, &lg->lg_prealloc_list) { - pa = list_entry(cur, struct ext4_prealloc_space, pa_inode_list); + list_for_each_entry_rcu(pa, &lg->lg_prealloc_list, pa_inode_list) { spin_lock(&pa->pa_lock); if (pa->pa_deleted == 0 && pa->pa_free >= ac->ac_o_ex.fe_len) { atomic_inc(&pa->pa_count);