Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c11e9fafb398411af7558fca913c2fa4a10b1f48
Commit: c11e9fafb398411af7558fca913c2fa4a10b1f48
Parent: 6adb31c90c47262c8a25bf5097de9b3426caf3ae
Author: Mark Fasheh <[EMAIL PROTECTED]>
AuthorDate: Fri Jul 20 11:24:53 2007 -0700
Committer: Mark Fasheh <[EMAIL PROTECTED]>
CommitDate: Thu Aug 9 17:23:50 2007 -0700
ocfs2: Restrict inode changes in ocfs2_update_inode_atime()
ocfs2_update_inode_atime() calls ocfs2_mark_inode_dirty() to push changes
from the struct inode into the ocfs2 disk inode. The problem is,
ocfs2_mark_inode_dirty() might change other fields, depending on what
happened to the struct inode. Since we don't always have locking to
serialize changes to other fields (like i_size, etc), just fix things up to
only touch the atime field.
Signed-off-by: Mark Fasheh <[EMAIL PROTECTED]>
---
fs/ocfs2/file.c | 19 ++++++++++++++++++-
1 files changed, 18 insertions(+), 1 deletions(-)
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index c4034f6..992eb56 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -187,6 +187,7 @@ int ocfs2_update_inode_atime(struct inode *inode,
int ret;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
handle_t *handle;
+ struct ocfs2_dinode *di = (struct ocfs2_dinode *) bh->b_data;
mlog_entry_void();
@@ -197,11 +198,27 @@ int ocfs2_update_inode_atime(struct inode *inode,
goto out;
}
+ ret = ocfs2_journal_access(handle, inode, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret) {
+ mlog_errno(ret);
+ goto out_commit;
+ }
+
+ /*
+ * Don't use ocfs2_mark_inode_dirty() here as we don't always
+ * have i_mutex to guard against concurrent changes to other
+ * inode fields.
+ */
inode->i_atime = CURRENT_TIME;
- ret = ocfs2_mark_inode_dirty(handle, inode, bh);
+ di->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
+ di->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
+
+ ret = ocfs2_journal_dirty(handle, bh);
if (ret < 0)
mlog_errno(ret);
+out_commit:
ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
out:
mlog_exit(ret);
-
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