Lukas Czerner 6d3ec14d70 jbd2: limit number of reserved credits ... Currently there is no limitation on number of reserved credits we can ask for. If we ask for more reserved credits than 1/2 of maximum transaction size, or if total number of credits exceeds the maximum transaction size per operation (which is currently only possible with the former) we will spin forever in start_this_handle(). Fix this by adding this limitation at the start of start_this_handle(). This patch also removes the credit limitation 1/2 of maximum transaction size, since we really only want to limit the number of reserved credits. There is not much point to limit the credits if there is still space in the journal. This accidentally also fixes the online resize, where due to the limitation of the journal credits we're unable to grow file systems with 1k block size and size between 16M and 32M. It has been partially fixed by 2c869b262a, but not entirely. Thanks Jan Kara for helping me getting the correct fix. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu>		2015-08-04 11:21:52 -04:00
..
checkpoint.c	jbd2: avoid infinite loop when destroying aborted journal	2015-07-28 14:57:14 -04:00
commit.c	jbd2: avoid infinite loop when destroying aborted journal	2015-07-28 14:57:14 -04:00
journal.c	jbd2: avoid infinite loop when destroying aborted journal	2015-07-28 14:57:14 -04:00
Kconfig	jbd2: remove debug dependency on debug_fs and update Kconfig help text	2013-06-12 23:07:51 -04:00
Makefile
recovery.c	jbd2: fix r_count overflows leading to buffer overflow in journal recovery	2015-05-14 19:11:50 -04:00
revoke.c	jbd2: get rid of open coded allocation retry loop	2015-06-15 15:45:58 -04:00
transaction.c	jbd2: limit number of reserved credits	2015-08-04 11:21:52 -04:00