search for: move_extent

...defrag: a) In ocfs2_find_victim_alloc_group(), we have to convert bits to block first in case of global bitmap. b) In ocfs2_probe_alloc_group(), when finding enough bits in block group bitmap, we have to back off move_len to start pos as well, otherwise it may corrupt filesystem. c) In ocfs2_ioctl_move_extents(), set me_threshold both for non-auto and auto defrag paths. Otherwise it will set move_max_hop to 0 and finally cause unexpectedly ENOSPC error. Currently there is no tools triggering the above issues since defragfs.ocfs2 enables auto defrag by default. Test with manually changing defragfs.ocfs2...

"new_phys_cpos" is always a valid pointer here. ocfs2_probe_alloc_group() allocates "*new_phys_cpos". Signed-off-by: Dan Carpenter <error27 at gmail.com> diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c index 4c54884..f3eb060 100644 --- a/fs/ocfs2/move_extents.c +++ b/fs/ocfs2/move_extents.c @@ -747,7 +747,7 @@ static int ocfs2_move_extent(struct ocfs2_move_extents_context *context, */ ocfs2_probe_alloc_group(inode, gd_bh, &goal_bit, len, move_max_hop, ne...

code path: ocfs2_ioctl_move_extents ocfs2_move_extents ocfs2_defrag_extent __ocfs2_move_extent + ocfs2_journal_access_di + ocfs2_split_extent //sub-paths call jbd2_journal_restart + ocfs2_journal_dirty //crash by jbs2 ASSERT crash stacks: PID: 11297 TASK: ffff974a676dcd00 CPU: 67 COMMAND: "defragfs.ocfs2...

...tim_alloc_group(), old code forgot enlarge bitmap range for global_bitmap case. Old code could generate negative vict_bit. - For ocfs2_probe_alloc_group(), old code forgot back off move_len when finding enough bitmap space. Old code has possibility to make data corruption. - For ocfs2_ioctl_move_extents(), this func should set me_threshold for both auto & non-auto path. Without setting me_threshold, ocfs2_move_extent() will make 'move_max_hop = 0', then ocfs2_probe_alloc_group() returns 'phys_cpos == 0' under max_hop is 0. Another info is current defragfs.ocfs2 doesn...

...<beanhuo at micron.com> > > Remove unnecessary check on the return value of block_commit_write(). > > Signed-off-by: Bean Huo <beanhuo at micron.com> Looks good to me. Feel free to add: Reviewed-by: Jan Kara <jack at suse.cz> Honza > --- > fs/ext4/move_extent.c | 7 ++----- > 1 file changed, 2 insertions(+), 5 deletions(-) > > diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c > index b5af2fc03b2f..f4b4861a74ee 100644 > --- a/fs/ext4/move_extent.c > +++ b/fs/ext4/move_extent.c > @@ -392,14 +392,11 @@ move_extent_per_page(st...

From: Jie Liu <jeff.liu at oracle.com> Subject: ocfs2: fix a memory leak in __ocfs2_move_extents() The ocfs2 path is not properly freed which leads to a memory leak at __ocfs2_move_extents(). This patch stops the leaks of the ocfs2_path structure. Signed-off-by: Jie Liu <jeff.liu at oracle.com> Reviewed-by: Younger Liu <younger.liu at huawei.com> Cc: Joel Becker <jlbec at ev...

..._victim_alloc_group(), we have to convert bits to block > first in case of global bitmap. > b) In ocfs2_probe_alloc_group(), when finding enough bits in block group > bitmap, we have to back off move_len to start pos as well, otherwise it > may corrupt filesystem. > c) In ocfs2_ioctl_move_extents(), set me_threshold both for non-auto and > auto defrag paths. Otherwise it will set move_max_hop to 0 and finally > cause unexpectedly ENOSPC error. > > Currently there is no tools triggering the above issues since > defragfs.ocfs2 enables auto defrag by default. Test with manuall...

...to check return value of block_commit_write() fs/ocfs2: No need to check return value of block_commit_write() udf: No need to check return value of block_commit_write() fs/buffer.c: convert block_commit_write to return void fs/buffer.c | 24 +++++++----------------- fs/ext4/move_extent.c | 7 ++----- fs/ocfs2/file.c | 7 +------ fs/udf/file.c | 6 +++--- include/linux/buffer_head.h | 2 +- 5 files changed, 14 insertions(+), 32 deletions(-) -- 2.34.1

...convert block_commit_write to return void ext4: No need to check return value of block_commit_write() fs/ocfs2: No need to check return value of block_commit_write() udf: No need to check return value of block_commit_write() fs/buffer.c | 24 +++++++----------------- fs/ext4/move_extent.c | 7 ++----- fs/ocfs2/file.c | 7 +------ fs/udf/file.c | 6 +++--- include/linux/buffer_head.h | 2 +- 5 files changed, 14 insertions(+), 32 deletions(-) -- 2.34.1

...In ocfs2_find_victim_alloc_group(), we have to convert bits to block first in case of global bitmap. b) In ocfs2_probe_alloc_group(), when finding enough bits in block group bitmap, we have to back off move_len to start pos as well, otherwise it may corrupt filesystem. c) In ocfs2_ioctl_move_extents(), set me_threshold both for non-auto and auto defrag paths. Otherwise it will set move_max_hop to 0 and finally cause unexpectedly ENOSPC error. Currently there are no tools triggering the above issues since defragfs.ocfs2 enables auto defrag by default. Tested with manually changing def...

...In ocfs2_find_victim_alloc_group(), we have to convert bits to block first in case of global bitmap. b) In ocfs2_probe_alloc_group(), when finding enough bits in block group bitmap, we have to back off move_len to start pos as well, otherwise it may corrupt filesystem. c) In ocfs2_ioctl_move_extents(), set me_threshold both for non-auto and auto defrag paths. Otherwise it will set move_max_hop to 0 and finally cause unexpectedly ENOSPC error. Currently there are no tools triggering the above issues since defragfs.ocfs2 enables auto defrag by default. Tested with manually changing def...

...In ocfs2_find_victim_alloc_group(), we have to convert bits to block first in case of global bitmap. b) In ocfs2_probe_alloc_group(), when finding enough bits in block group bitmap, we have to back off move_len to start pos as well, otherwise it may corrupt filesystem. c) In ocfs2_ioctl_move_extents(), set me_threshold both for non-auto and auto defrag paths. Otherwise it will set move_max_hop to 0 and finally cause unexpectedly ENOSPC error. Currently there are no tools triggering the above issues since defragfs.ocfs2 enables auto defrag by default. Tested with manually changing def...

...In ocfs2_find_victim_alloc_group(), we have to convert bits to block first in case of global bitmap. b) In ocfs2_probe_alloc_group(), when finding enough bits in block group bitmap, we have to back off move_len to start pos as well, otherwise it may corrupt filesystem. c) In ocfs2_ioctl_move_extents(), set me_threshold both for non-auto and auto defrag paths. Otherwise it will set move_max_hop to 0 and finally cause unexpectedly ENOSPC error. Currently there are no tools triggering the above issues since defragfs.ocfs2 enables auto defrag by default. Tested with manually changing def...

...In ocfs2_find_victim_alloc_group(), we have to convert bits to block first in case of global bitmap. b) In ocfs2_probe_alloc_group(), when finding enough bits in block group bitmap, we have to back off move_len to start pos as well, otherwise it may corrupt filesystem. c) In ocfs2_ioctl_move_extents(), set me_threshold both for non-auto and auto defrag paths. Otherwise it will set move_max_hop to 0 and finally cause unexpectedly ENOSPC error. Currently there are no tools triggering the above issues since defragfs.ocfs2 enables auto defrag by default. Tested with manually changing def...

...Ocfs2-devel <ocfs2-devel at oss.oracle.com> Date: Fri, 17 Feb 2023 08:37:17 +0800 Subject: ocfs2: fix defrag path triggering jbd2 ASSERT From: Heming Zhao via Ocfs2-devel <ocfs2-devel at oss.oracle.com> commit 60eed1e3d45045623e46944ebc7c42c30a4350f0 upstream. code path: ocfs2_ioctl_move_extents ocfs2_move_extents ocfs2_defrag_extent __ocfs2_move_extent + ocfs2_journal_access_di + ocfs2_split_extent //sub-paths call jbd2_journal_restart + ocfs2_journal_dirty //crash by jbs2 ASSERT crash stacks: PID: 11297 TASK: ffff974a676dcd00 CPU: 67 COMMAND: "defragfs.ocfs2...

...Ocfs2-devel <ocfs2-devel at oss.oracle.com> Date: Fri, 17 Feb 2023 08:37:17 +0800 Subject: ocfs2: fix defrag path triggering jbd2 ASSERT From: Heming Zhao via Ocfs2-devel <ocfs2-devel at oss.oracle.com> commit 60eed1e3d45045623e46944ebc7c42c30a4350f0 upstream. code path: ocfs2_ioctl_move_extents ocfs2_move_extents ocfs2_defrag_extent __ocfs2_move_extent + ocfs2_journal_access_di + ocfs2_split_extent //sub-paths call jbd2_journal_restart + ocfs2_journal_dirty //crash by jbs2 ASSERT crash stacks: PID: 11297 TASK: ffff974a676dcd00 CPU: 67 COMMAND: "defragfs.ocfs2...

...Ocfs2-devel <ocfs2-devel at oss.oracle.com> Date: Fri, 17 Feb 2023 08:37:17 +0800 Subject: ocfs2: fix defrag path triggering jbd2 ASSERT From: Heming Zhao via Ocfs2-devel <ocfs2-devel at oss.oracle.com> commit 60eed1e3d45045623e46944ebc7c42c30a4350f0 upstream. code path: ocfs2_ioctl_move_extents ocfs2_move_extents ocfs2_defrag_extent __ocfs2_move_extent + ocfs2_journal_access_di + ocfs2_split_extent //sub-paths call jbd2_journal_restart + ocfs2_journal_dirty //crash by jbs2 ASSERT crash stacks: PID: 11297 TASK: ffff974a676dcd00 CPU: 67 COMMAND: "defragfs.ocfs2...

...Ocfs2-devel <ocfs2-devel at oss.oracle.com> Date: Fri, 17 Feb 2023 08:37:17 +0800 Subject: ocfs2: fix defrag path triggering jbd2 ASSERT From: Heming Zhao via Ocfs2-devel <ocfs2-devel at oss.oracle.com> commit 60eed1e3d45045623e46944ebc7c42c30a4350f0 upstream. code path: ocfs2_ioctl_move_extents ocfs2_move_extents ocfs2_defrag_extent __ocfs2_move_extent + ocfs2_journal_access_di + ocfs2_split_extent //sub-paths call jbd2_journal_restart + ocfs2_journal_dirty //crash by jbs2 ASSERT crash stacks: PID: 11297 TASK: ffff974a676dcd00 CPU: 67 COMMAND: "defragfs.ocfs2...

...Ocfs2-devel <ocfs2-devel at oss.oracle.com> Date: Fri, 17 Feb 2023 08:37:17 +0800 Subject: ocfs2: fix defrag path triggering jbd2 ASSERT From: Heming Zhao via Ocfs2-devel <ocfs2-devel at oss.oracle.com> commit 60eed1e3d45045623e46944ebc7c42c30a4350f0 upstream. code path: ocfs2_ioctl_move_extents ocfs2_move_extents ocfs2_defrag_extent __ocfs2_move_extent + ocfs2_journal_access_di + ocfs2_split_extent //sub-paths call jbd2_journal_restart + ocfs2_journal_dirty //crash by jbs2 ASSERT crash stacks: PID: 11297 TASK: ffff974a676dcd00 CPU: 67 COMMAND: "defragfs.ocfs2...

...Ocfs2-devel <ocfs2-devel at oss.oracle.com> Date: Fri, 17 Feb 2023 08:37:17 +0800 Subject: ocfs2: fix defrag path triggering jbd2 ASSERT From: Heming Zhao via Ocfs2-devel <ocfs2-devel at oss.oracle.com> commit 60eed1e3d45045623e46944ebc7c42c30a4350f0 upstream. code path: ocfs2_ioctl_move_extents ocfs2_move_extents ocfs2_defrag_extent __ocfs2_move_extent + ocfs2_journal_access_di + ocfs2_split_extent //sub-paths call jbd2_journal_restart + ocfs2_journal_dirty //crash by jbs2 ASSERT crash stacks: PID: 11297 TASK: ffff974a676dcd00 CPU: 67 COMMAND: "defragfs.ocfs2...