On Thu 12-01-12 12:56:01, Andreas Dilger wrote: > On 2012-01-11, at 6:20 PM, Jan Kara wrote: > > There are three entry points which dirty pages in a filesystem. mmap (handled > > by block_page_mkwrite()), buffered write (handled by > > __generic_file_aio_write()), and truncate (it can dirty last partial page - > > handled by do_truncate()). Protect these places with sb_start_write() and > > sb_end_write(). > > > > Signed-off-by: Jan Kara <jack@xxxxxxx> > > --- > > fs/buffer.c | 18 ++---------------- > > fs/open.c | 6 ++++++ > > mm/filemap.c | 3 ++- > > 3 files changed, 10 insertions(+), 17 deletions(-) > > > > diff --git a/fs/buffer.c b/fs/buffer.c > > index 19d8eb7..8519405 100644 > > --- a/fs/buffer.c > > +++ b/fs/buffer.c > > @@ -2371,18 +2371,7 @@ int __block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf, > > The comment for __block_page_mkwrite() needs to be updated to reference > sb_start_write() and sb_end_write() instead of vfs_check_frozen(). Thanks. Fixed. Honza -- Jan Kara <jack@xxxxxxx> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
