summaryrefslogtreecommitdiffstats
path: root/Documentation/ptp
diff options
context:
space:
mode:
authorJan Kara <jack@suse.cz>2013-06-04 12:12:57 -0400
committerTheodore Ts'o <tytso@mit.edu>2013-06-04 12:12:57 -0400
commit76c39904561004ac8675f858a290129e439d5168 (patch)
tree46b2c2800ffbad5dd2ebd4ceb66893414630df2b /Documentation/ptp
parent2f387f849b6a5be5b4b914c43a8af0406279db11 (diff)
downloadlinux-stable-76c39904561004ac8675f858a290129e439d5168.tar.gz
linux-stable-76c39904561004ac8675f858a290129e439d5168.tar.bz2
linux-stable-76c39904561004ac8675f858a290129e439d5168.zip
jbd2: cleanup needed free block estimates when starting a transaction
__jbd2_log_space_left() and jbd_space_needed() were kind of odd. jbd_space_needed() accounted also credits needed for currently committing transaction while it didn't account for credits needed for control blocks. __jbd2_log_space_left() then accounted for control blocks as a fraction of free space. Since results of these two functions are always only compared against each other, this works correct but is somewhat strange. Move the estimates so that jbd_space_needed() returns number of blocks needed for a transaction including control blocks and __jbd2_log_space_left() returns free space in the journal (with the committing transaction already subtracted). Rename functions to jbd2_log_space_left() and jbd2_space_needed() while we are changing them. Reviewed-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'Documentation/ptp')
0 files changed, 0 insertions, 0 deletions