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| author | Theodore Ts'o <tytso@mit.edu> | 2009-01-05 21:34:13 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-01-05 21:34:13 -0500 |
| commit | fd98496f467b3d26d05ab1498f41718b5ef13de5 (patch) | |
| tree | 27e29934f5c2ee5ccc060de27dee261d31d6842c /Documentation/sysrq.txt | |
| parent | 0390131ba84fd3f726f9e24fc4553828125700bb (diff) | |
| download | kernel_samsung_aries-fd98496f467b3d26d05ab1498f41718b5ef13de5.zip kernel_samsung_aries-fd98496f467b3d26d05ab1498f41718b5ef13de5.tar.gz kernel_samsung_aries-fd98496f467b3d26d05ab1498f41718b5ef13de5.tar.bz2 | |
jbd2: Add barrier not supported test to journal_wait_on_commit_record
Xen doesn't report that barriers are not supported until buffer I/O is
reported as completed, instead of when the buffer I/O is submitted.
Add a check and a fallback codepath to journal_wait_on_commit_record()
to detect this case, so that attempts to mount ext4 filesystems on
LVM/devicemapper devices on Xen guests don't blow up with an "Aborting
journal on device XXX"; "Remounting filesystem read-only" error.
Thanks to Andreas Sundstrom for reporting this issue.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
Diffstat (limited to 'Documentation/sysrq.txt')
0 files changed, 0 insertions, 0 deletions