2.6.37-stable review patch. If anyone has any objections, please let us know.
------------------ From: Ryusuke Konishi <[email protected]> commit 72746ac643928f6c3113b5aa783d8ea1b13949d2 upstream. According to the report from Jiro SEKIBA titled "regression in 2.6.37?" (Message-Id: <8739n8vs1f.wl%[email protected]>), on 2.6.37 and later kernels, lscp command no longer displays "i" flag on checkpoints that snapshot operations or garbage collection created. This is a regression of nilfs2 checkpointing function, and it's critical since it broke behavior of a part of nilfs2 applications. For instance, snapshot manager of TimeBrowse gets to create meaningless snapshots continuously; snapshot creation triggers another checkpoint, but applications cannot distinguish whether the new checkpoint contains meaningful changes or not without the i-flag. This patch fixes the regression and brings that application behavior back to normal. Reported-by: Jiro SEKIBA <[email protected]> Signed-off-by: Ryusuke Konishi <[email protected]> Tested-by: Ryusuke Konishi <[email protected]> Tested-by: Jiro SEKIBA <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- fs/nilfs2/segment.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -430,7 +430,8 @@ static void nilfs_segctor_begin_finfo(st nilfs_segctor_map_segsum_entry( sci, &sci->sc_binfo_ptr, sizeof(struct nilfs_finfo)); - if (inode->i_sb && !test_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags)) + if (NILFS_I(inode)->i_root && + !test_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags)) set_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags); /* skip finfo */ } _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
