2 Commits

Author	SHA1	Message	Date
Sun Ke	bb2f356f14	generic/619: a better way to get tot_avail_size ... When FSTYP is tmpfs, $DF_PROG --block-size=1 $SCRATCH_DEV is not suitted. Signed-off-by: Sun Ke <sunke32@huawei.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>	2021-04-25 08:56:58 +08:00
Pratik Rajesh Sampat	8b4f7e207c	generic: ENOSPC regression test in a multi-threaded scenario ... Test allocation strategies of the file system and validate space anomalies as reported by the system versus the allocated by the program. The test is motivated by a bug in ext4 systems where-in ENOSPC is reported by the file system even though enough space for allocations is available[1]. [1]: https://patchwork.ozlabs.org/patch/1294003 Linux kernel patch series that fixes the above regression: 53f86b170dfa ("ext4: mballoc: add blocks to PA list under same spinlock after allocating blocks") cf5e2ca6c990 ("ext4: mballoc: refactor ext4_mb_discard_preallocations()") 07b5b8e1ac40 ("ext4: mballoc: introduce pcpu seqcnt for freeing PA to improve ENOSPC handling") 8ef123fe02ca ("ext4: mballoc: refactor ext4_mb_good_group()") 993778306e79 ("ext4: mballoc: use lock for checking free blocks while retrying") Suggested-by: Ritesh Harjani <riteshh@linux.ibm.com> Co-authored-by: Sourabh Jain <sourabhjain@linux.ibm.com> Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com> Signed-off-by: Pratik Rajesh Sampat <psampat@linux.ibm.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>	2020-12-06 22:15:01 +08:00