| commit | aa0150ba7da7399b3e4017978cece102dd3eedbc | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Fri, 8 Sep 2017 15:44:13 +0000 (8 08:44 -0700) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Fri, 8 Sep 2017 15:44:13 +0000 (8 08:44 -0700) | ||
| tree | a420c6d4e8f856b94963dab217da909dceb080d5 | treesnapshot (tar.gz zip) |
| parent | 32c821cfa9bc05a6e4411256cd9b34751f3322a3 | commitdiff |
kernel - vfsync() use synchronous bwrite() in low-memory situations
* For now, make vfsync() use a synchronous bwrite() in low-memory
situations and do not call vm_wait_nominal(). This could wind up
being a chicken-or-egg issue unfortunately.
* Addresses issues where the pageout daemon gets indirectly deadlocked
when other unrelated kernel threads (aka H2 support threads) are
flushing buffers.
* For now, make vfsync() use a synchronous bwrite() in low-memory
situations and do not call vm_wait_nominal(). This could wind up
being a chicken-or-egg issue unfortunately.
* Addresses issues where the pageout daemon gets indirectly deadlocked
when other unrelated kernel threads (aka H2 support threads) are
flushing buffers.
| sys/kern/vfs_subr.c | diffblobblamehistory |