Junxiao Bi
2013-Jul-19 09:23 UTC
[Ocfs2-devel] [PATCH v2] ocfs2: using i_size_read() to access i_size
Though ocfs2 uses inode->i_mutex to protect i_size, but there
are both i_size_read/write() and direct access in, clean up all
direct access to eliminate confusion.
Signed-off-by: Junxiao Bi <junxiao.bi at oracle.com>
Cc: Jie Liu <jeff.liu at oracle.com>
---
fs/ocfs2/aops.c | 2 +-
fs/ocfs2/extent_map.c | 10 +++++-----
fs/ocfs2/ioctl.c | 2 +-
fs/ocfs2/journal.c | 8 ++++----
fs/ocfs2/move_extents.c | 2 +-
fs/ocfs2/quota_global.c | 6 +++---
fs/ocfs2/quota_local.c | 12 ++++++------
7 files changed, 21 insertions(+), 21 deletions(-)
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 79736a2..17f5e7d 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -2050,7 +2050,7 @@ int ocfs2_write_end_nolock(struct address_space *mapping,
out_write_size:
pos += copied;
- if (pos > inode->i_size) {
+ if (pos > i_size_read(inode)) {
i_size_write(inode, pos);
mark_inode_dirty(inode);
}
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index 2487116..4bf2b76 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -852,20 +852,20 @@ int ocfs2_seek_data_hole_offset(struct file *file, loff_t
*offset, int whence)
down_read(&OCFS2_I(inode)->ip_alloc_sem);
- if (*offset >= inode->i_size) {
+ if (*offset >= i_size_read(inode)) {
ret = -ENXIO;
goto out_unlock;
}
if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {
if (whence == SEEK_HOLE)
- *offset = inode->i_size;
+ *offset = i_size_read(inode);
goto out_unlock;
}
clen = 0;
cpos = *offset >> cs_bits;
- cend = ocfs2_clusters_for_bytes(inode->i_sb, inode->i_size);
+ cend = ocfs2_clusters_for_bytes(inode->i_sb, i_size_read(inode));
while (cpos < cend && !is_last) {
ret = ocfs2_get_clusters_nocache(inode, di_bh, cpos, &hole_size,
@@ -904,8 +904,8 @@ int ocfs2_seek_data_hole_offset(struct file *file, loff_t
*offset, int whence)
extlen = clen;
extlen <<= cs_bits;
- if ((extoff + extlen) > inode->i_size)
- extlen = inode->i_size - extoff;
+ if ((extoff + extlen) > i_size_read(inode))
+ extlen = i_size_read(inode) - extoff;
extoff += extlen;
if (extoff > *offset)
*offset = extoff;
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 0c60ef2..fa32ce9 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -303,7 +303,7 @@ int ocfs2_info_handle_journal_size(struct inode *inode,
if (o2info_from_user(oij, req))
goto bail;
- oij.ij_journal_size = osb->journal->j_inode->i_size;
+ oij.ij_journal_size = i_size_read(osb->journal->j_inode);
o2info_set_request_filled(&oij.ij_req);
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 242170d..04d3571 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -801,14 +801,14 @@ int ocfs2_journal_init(struct ocfs2_journal *journal, int
*dirty)
inode_lock = 1;
di = (struct ocfs2_dinode *)bh->b_data;
- if (inode->i_size < OCFS2_MIN_JOURNAL_SIZE) {
+ if (i_size_read(inode) < OCFS2_MIN_JOURNAL_SIZE) {
mlog(ML_ERROR, "Journal file size (%lld) is too small!\n",
- inode->i_size);
+ i_size_read(inode));
status = -EINVAL;
goto done;
}
- trace_ocfs2_journal_init(inode->i_size,
+ trace_ocfs2_journal_init(i_size_read(inode),
(unsigned long long)inode->i_blocks,
OCFS2_I(inode)->ip_clusters);
@@ -1096,7 +1096,7 @@ static int ocfs2_force_read_journal(struct inode *inode)
memset(bhs, 0, sizeof(struct buffer_head *) * CONCURRENT_JOURNAL_FILL);
- num_blocks = ocfs2_blocks_for_bytes(inode->i_sb, inode->i_size);
+ num_blocks = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode));
v_blkno = 0;
while (v_blkno < num_blocks) {
status = ocfs2_extent_map_get_blocks(inode, v_blkno,
diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index f1fc172..33472e4 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -845,7 +845,7 @@ static int __ocfs2_move_extents_range(struct buffer_head
*di_bh,
struct ocfs2_move_extents *range = context->range;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- if ((inode->i_size == 0) || (range->me_len == 0))
+ if ((i_size_read(inode) == 0) || (range->me_len == 0))
return 0;
if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL)
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index 332a281..aaa5061 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -234,7 +234,7 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type,
len = sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE - offset;
}
- if (gqinode->i_size < off + len) {
+ if (i_size_read(gqinode) < off + len) {
loff_t rounded_end ocfs2_align_bytes_to_blocks(sb, off + len);
@@ -778,8 +778,8 @@ static int ocfs2_acquire_dquot(struct dquot *dquot)
*/
WARN_ON(journal_current_handle());
status = ocfs2_extend_no_holes(gqinode, NULL,
- gqinode->i_size + (need_alloc << sb->s_blocksize_bits),
- gqinode->i_size);
+ i_size_read(gqinode) + (need_alloc << sb->s_blocksize_bits),
+ i_size_read(gqinode));
if (status < 0)
goto out_dq;
}
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index 27fe7ee..2e4344b 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -982,14 +982,14 @@ static struct ocfs2_quota_chunk
*ocfs2_local_quota_add_chunk(
/* We are protected by dqio_sem so no locking needed */
status = ocfs2_extend_no_holes(lqinode, NULL,
- lqinode->i_size + 2 * sb->s_blocksize,
- lqinode->i_size);
+ i_size_read(lqinode) + 2 * sb->s_blocksize,
+ i_size_read(lqinode));
if (status < 0) {
mlog_errno(status);
goto out;
}
status = ocfs2_simple_size_update(lqinode, oinfo->dqi_lqi_bh,
- lqinode->i_size + 2 * sb->s_blocksize);
+ i_size_read(lqinode) + 2 * sb->s_blocksize);
if (status < 0) {
mlog_errno(status);
goto out;
@@ -1125,14 +1125,14 @@ static struct ocfs2_quota_chunk
*ocfs2_extend_local_quota_file(
/* We are protected by dqio_sem so no locking needed */
status = ocfs2_extend_no_holes(lqinode, NULL,
- lqinode->i_size + sb->s_blocksize,
- lqinode->i_size);
+ i_size_read(lqinode) + sb->s_blocksize,
+ i_size_read(lqinode));
if (status < 0) {
mlog_errno(status);
goto out;
}
status = ocfs2_simple_size_update(lqinode, oinfo->dqi_lqi_bh,
- lqinode->i_size + sb->s_blocksize);
+ i_size_read(lqinode) + sb->s_blocksize);
if (status < 0) {
mlog_errno(status);
goto out;
--
1.7.9.5