[lkml]   [2012]   [Sep]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [ 16/32] ext4: make sure the journal sb is written in ext4_clear_journal_err()
    On Sun, 2012-08-19 at 20:57 -0700, Greg Kroah-Hartman wrote:
    > From: Greg KH <>
    > 3.4-stable review patch. If anyone has any objections, please let me know.
    > ------------------
    > From: Theodore Ts'o <>
    > commit d796c52ef0b71a988364f6109aeb63d79c5b116b upstream.
    > After we transfer set the EXT4_ERROR_FS bit in the file system
    > superblock, it's not enough to call jbd2_journal_clear_err() to clear
    > the error indication from journal superblock --- we need to call
    > jbd2_journal_update_sb_errno() as well. Otherwise, when the root file
    > system is mounted read-only, the journal is replayed, and the error
    > indicator is transferred to the superblock --- but the s_errno field
    > in the jbd2 superblock is left set (since although we cleared it in
    > memory, we never flushed it out to disk).
    > This can end up confusing e2fsck. We should make e2fsck more robust
    > in this case, but the kernel shouldn't be leaving things in this
    > confused state, either.

    Is this needed for 3.2? It looked like it depended on
    24bcc89c7e7c64982e6192b4952a0a92379fc341 which is strictly too big a
    change for a stable series. But perhaps there's a way to avoid that


    Ben Hutchings
    Usenet is essentially a HUGE group of people passing notes in class.
    - Rachel Kadel, `A Quick Guide to Newsgroup Etiquette'
    [unhandled content-type:application/pgp-signature]
     \ /
      Last update: 2012-09-07 05:21    [W:0.037 / U:29.388 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site