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* Illumos #3464Matthew Ahrens2013-09-041-7/+14
| | | | | | | | | | | | | | | | | 3464 zfs synctask code needs restructuring Reviewed by: Dan Kimmel <[email protected]> Reviewed by: Adam Leventhal <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Christopher Siden <[email protected]> Approved by: Garrett D'Amore <[email protected]> References: https://www.illumos.org/issues/3464 illumos/illumos-gate@3b2aab18808792cbd248a12f1edf139b89833c13 Ported-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #1495
* Switch KM_SLEEP to KM_PUSHPAGERichard Yao2012-08-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Differences between how paging is done on Solaris and Linux can cause deadlocks if KM_SLEEP is used in any the following contexts. * The txg_sync thread * The zvol write/discard threads * The zpl_putpage() VFS callback This is because KM_SLEEP will allow for direct reclaim which may result in the VM calling back in to the filesystem or block layer to write out pages. If a lock is held over this operation the potential exists to deadlock the system. To ensure forward progress all memory allocations in these contexts must us KM_PUSHPAGE which disables performing any I/O to accomplish the memory allocation. Previously, this behavior was acheived by setting PF_MEMALLOC on the thread. However, that resulted in unexpected side effects such as the exhaustion of pages in ZONE_DMA. This approach touchs more of the zfs code, but it is more consistent with the right way to handle these cases under Linux. This is patch lays the ground work for being able to safely revert the following commits which used PF_MEMALLOC: 21ade34 Disable direct reclaim for z_wr_* threads cfc9a5c Fix zpl_writepage() deadlock eec8164 Fix ASSERTION(!dsl_pool_sync_context(tx->tx_pool)) Signed-off-by: Richard Yao <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #726
* Fix gcc uninitialized variable warningsBrian Behlendorf2010-08-311-1/+1
| | | | | | Gcc -Wall warn: 'uninitialized variable' Signed-off-by: Brian Behlendorf <[email protected]>
* Fix gcc missing parenthesis warningsBrian Behlendorf2010-08-311-2/+2
| | | | | | Gcc -Wall warn: 'missing parenthesis' Signed-off-by: Brian Behlendorf <[email protected]>
* Update to onnv_147Brian Behlendorf2010-08-261-2/+33
| | | | | This is the last official OpenSolaris tag before the public development tree was closed.
* Update core ZFS code from build 121 to build 141.Brian Behlendorf2010-05-281-4/+1
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* Move the world out of /zfs/ and seperate out module build treeBrian Behlendorf2008-12-111-0/+195