Only mark the inode dirty if any field was actually changed. Currently this can't happen but it will with the next patch. Signed-off-by: Christoph Hellwig <hch@xxxxxx> Index: linux-2.6/fs/attr.c =================================================================== --- linux-2.6.orig/fs/attr.c 2008-05-20 20:37:46.000000000 +0200 +++ linux-2.6/fs/attr.c 2008-05-20 20:39:05.000000000 +0200 @@ -66,36 +66,50 @@ EXPORT_SYMBOL(inode_change_ok); int inode_setattr(struct inode * inode, struct iattr * attr) { unsigned int ia_valid = attr->ia_valid; + int sync_it = 0; if (ia_valid & ATTR_SIZE && attr->ia_size != i_size_read(inode)) { int error = vmtruncate(inode, attr->ia_size); if (error) return error; + sync_it = 1; } - if (ia_valid & ATTR_UID) + if (ia_valid & ATTR_UID) { inode->i_uid = attr->ia_uid; - if (ia_valid & ATTR_GID) + sync_it = 1; + } + if (ia_valid & ATTR_GID) { inode->i_gid = attr->ia_gid; - if (ia_valid & ATTR_ATIME) + sync_it = 1; + } + if (ia_valid & ATTR_ATIME) { inode->i_atime = timespec_trunc(attr->ia_atime, inode->i_sb->s_time_gran); - if (ia_valid & ATTR_MTIME) + sync_it = 1; + } + if (ia_valid & ATTR_MTIME) { inode->i_mtime = timespec_trunc(attr->ia_mtime, inode->i_sb->s_time_gran); - if (ia_valid & ATTR_CTIME) + sync_it = 1; + } + if (ia_valid & ATTR_CTIME) { inode->i_ctime = timespec_trunc(attr->ia_ctime, inode->i_sb->s_time_gran); + sync_it = 1; + } if (ia_valid & ATTR_MODE) { umode_t mode = attr->ia_mode; if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID)) mode &= ~S_ISGID; inode->i_mode = mode; + sync_it = 1; } - mark_inode_dirty(inode); + if (sync_it) + mark_inode_dirty(inode); return 0; } EXPORT_SYMBOL(inode_setattr); -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html