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| author | Andreas Gruenbacher <[email protected]> | 2023-08-04 20:17:32 +0000 |
|---|---|---|
| committer | Andreas Gruenbacher <[email protected]> | 2023-08-07 16:40:51 +0000 |
| commit | 2cbd80642b76480c9b0697297af917d9388a0b46 (patch) | |
| tree | 1737fab26eb424f3c6fbecd5a10548dca5dd9c17 /tools/perf/util/c++/clang.cpp | |
| parent | Merge tag 'gfs2-v6.4-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| download | kernel-2cbd80642b76480c9b0697297af917d9388a0b46.tar.gz kernel-2cbd80642b76480c9b0697297af917d9388a0b46.zip | |
gfs2: Fix freeze consistency check in gfs2_trans_add_meta
Function gfs2_trans_add_meta() checks for the SDF_FROZEN flag to make
sure that no buffers are added to a transaction while the filesystem is
frozen. With the recent freeze/thaw rework, the SDF_FROZEN flag is
cleared after thaw_super() is called, which is sufficient for
serializing freeze/thaw.
However, other filesystem operations started after thaw_super() may now
be calling gfs2_trans_add_meta() before the SDF_FROZEN flag is cleared,
which will trigger the SDF_FROZEN check in gfs2_trans_add_meta(). Fix
that by checking the s_writers.frozen state instead.
In addition, make sure not to call gfs2_assert_withdraw() with the
sd_log_lock spin lock held. Check for a withdrawn filesystem before
checking for a frozen filesystem, and don't pin/add buffers to the
current transaction in case of a failure in either case.
Signed-off-by: Andreas Gruenbacher <[email protected]>
Signed-off-by: Bob Peterson <[email protected]>
Diffstat (limited to 'tools/perf/util/c++/clang.cpp')
0 files changed, 0 insertions, 0 deletions