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Date: Tue, 12 Feb 2013 22:46:21 -0500
From: Theodore Ts'o <tytso@....edu>
To: Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc: Zheng Liu <wenqing.lz@...bao.com>, "Theodore Ts'o" <tytso@....edu>
Subject: [PATCH 1/2] ext4: rename ext4_es_find_extent() to ext4_es_find_delayed_extent()
From: Zheng Liu <wenqing.lz@...bao.com>
Rename ext4_es_find_extent() to ext4_es_find_delayed_extent() to make
the purpose of this function clearer.
[ This was originally part of the next commit, but I separated this
out to make it easier to review and debug the next commit. -- Ted ]
Signed-off-by: Zheng Liu <wenqing.lz@...bao.com>
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
---
fs/ext4/extents.c | 4 ++--
fs/ext4/extents_status.c | 9 +++++----
fs/ext4/extents_status.h | 4 ++--
fs/ext4/file.c | 4 ++--
include/trace/events/ext4.h | 4 ++--
5 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 06caa54..9802d64 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3529,7 +3529,7 @@ static int ext4_find_delalloc_range(struct inode *inode,
struct extent_status es;
es.es_lblk = lblk_start;
- (void)ext4_es_find_extent(inode, &es);
+ (void)ext4_es_find_delayed_extent(inode, &es);
if (es.es_len == 0)
return 0; /* there is no delay extent in this tree */
else if (es.es_lblk <= lblk_start &&
@@ -4575,7 +4575,7 @@ static int ext4_find_delayed_extent(struct inode *inode,
ext4_lblk_t next_del;
es.es_lblk = newex->ec_block;
- next_del = ext4_es_find_extent(inode, &es);
+ next_del = ext4_es_find_delayed_extent(inode, &es);
if (newex->ec_start == 0) {
/*
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index e7e1622..df72e95 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -229,7 +229,7 @@ static struct extent_status *__es_tree_search(struct rb_root *root,
}
/*
- * ext4_es_find_extent: find the 1st delayed extent covering @es->lblk
+ * ext4_es_find_delayed_extent: find the 1st delayed extent covering @es->lblk
* if it exists, otherwise, the next extent after @es->lblk.
*
* @inode: the inode which owns delayed extents
@@ -239,14 +239,15 @@ static struct extent_status *__es_tree_search(struct rb_root *root,
* EXT_MAX_BLOCKS if no extent is found.
* Delayed extent is returned via @es.
*/
-ext4_lblk_t ext4_es_find_extent(struct inode *inode, struct extent_status *es)
+ext4_lblk_t ext4_es_find_delayed_extent(struct inode *inode,
+ struct extent_status *es)
{
struct ext4_es_tree *tree = NULL;
struct extent_status *es1 = NULL;
struct rb_node *node;
ext4_lblk_t ret = EXT_MAX_BLOCKS;
- trace_ext4_es_find_extent_enter(inode, es->es_lblk);
+ trace_ext4_es_find_delayed_extent_enter(inode, es->es_lblk);
read_lock(&EXT4_I(inode)->i_es_lock);
tree = &EXT4_I(inode)->i_es_tree;
@@ -280,7 +281,7 @@ out:
read_unlock(&EXT4_I(inode)->i_es_lock);
- trace_ext4_es_find_extent_exit(inode, es, ret);
+ trace_ext4_es_find_delayed_extent_exit(inode, es, ret);
return ret;
}
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h
index 2a5d69e..b5788eb 100644
--- a/fs/ext4/extents_status.h
+++ b/fs/ext4/extents_status.h
@@ -51,8 +51,8 @@ extern int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
unsigned long long status);
extern int ext4_es_remove_extent(struct inode *inode, ext4_lblk_t lblk,
ext4_lblk_t len);
-extern ext4_lblk_t ext4_es_find_extent(struct inode *inode,
- struct extent_status *es);
+extern ext4_lblk_t ext4_es_find_delayed_extent(struct inode *inode,
+ struct extent_status *es);
static inline int ext4_es_is_written(struct extent_status *es)
{
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 209802b..d2df517 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -465,7 +465,7 @@ static loff_t ext4_seek_data(struct file *file, loff_t offset, loff_t maxsize)
* it will be as a data.
*/
es.es_lblk = last;
- (void)ext4_es_find_extent(inode, &es);
+ (void)ext4_es_find_delayed_extent(inode, &es);
if (last >= es.es_lblk && last < es.es_lblk + es.es_len) {
if (last != start)
dataoff = last << blkbits;
@@ -549,7 +549,7 @@ static loff_t ext4_seek_hole(struct file *file, loff_t offset, loff_t maxsize)
* we will skip this extent.
*/
es.es_lblk = last;
- (void)ext4_es_find_extent(inode, &es);
+ (void)ext4_es_find_delayed_extent(inode, &es);
if (last >= es.es_lblk && last < es.es_lblk + es.es_len) {
last = es.es_lblk + es.es_len;
holeoff = last << blkbits;
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 0ee507f..0f30a8e 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -2147,7 +2147,7 @@ TRACE_EVENT(ext4_es_remove_extent,
__entry->lblk, __entry->len)
);
-TRACE_EVENT(ext4_es_find_extent_enter,
+TRACE_EVENT(ext4_es_find_delayed_extent_enter,
TP_PROTO(struct inode *inode, ext4_lblk_t lblk),
TP_ARGS(inode, lblk),
@@ -2169,7 +2169,7 @@ TRACE_EVENT(ext4_es_find_extent_enter,
(unsigned long) __entry->ino, __entry->lblk)
);
-TRACE_EVENT(ext4_es_find_extent_exit,
+TRACE_EVENT(ext4_es_find_delayed_extent_exit,
TP_PROTO(struct inode *inode, struct extent_status *es,
ext4_lblk_t ret),
--
1.7.12.rc0.22.gcdd159b
--
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