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* Add provides lustre-backend-fs to rpmBrian Behlendorf2011-10-071-0/+1
| | | | | | | | The Lustre packages satify their backend fs requirement by checking that lustre-backend-fs is provided. Update the zfs packaging accordingly. Signed-off-by: Brian Behlendorf <[email protected]>
* Prep zfs-0.6.0-rc6 tagBrian Behlendorf2011-10-061-1/+1
| | | | Create the sixth 0.6.0 release candidate tag (rc6).
* Export symbols for the full SA APIBrian Behlendorf2011-10-053-3/+43
| | | | | | | | | | | | | Export all the symbols for the system attribute (SA) API. This allows external module to cleanly manipulate the SAs associated with a dnode. Documention for the SA API can be found in the module/zfs/sa.c source. This change also removes the zfs_sa_uprade_pre, and zfs_sa_uprade_post prototypes. The functions themselves were dropped some time ago. Signed-off-by: Brian Behlendorf <[email protected]>
* Synchronize initramfs and system hostidBrian Behlendorf2011-09-302-3/+16
| | | | | | | | | | | | | | | | | | | | | | | | Relying on an /etc/hostid file which is installed in the system image breaks diskless systems which share an image. Certain cluster infrastructure such as MPI relies on all nodes having a unique hostid. However, we still must be careful to ensure the hostid is syncronized between the initramfs and system images when using zfs root filesystems. To accompish this the automatically created /etc/hostid file has been removed from the spl rpm packaging. The /etc/hostid file is now dynamically created for your initramfs as part of the dracut install process. This avoids the need to install it in the actual system images. This change also resolves the spl_hostid parameter handling for dracut. Signed-off-by: Brian Behlendorf <[email protected]> Closes #398 Closes #399 Signed-off-by: Brian Behlendorf <[email protected]>
* Fix 'unexpected operator' bashismOleg Stepura2011-09-291-1/+1
| | | | | | | | | The == operator is specific to bash, replace it with the more correct = operator for sh. This bug can prevent correct booting when using a zfs root pool. Signed-off-by: Brian Behlendorf <[email protected]> Closes #416
* zpl: Fix "df -i" to have better free inodes valueAndreas Dilger2011-09-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Due to the confusion in Linux statfs between f_frsize and f_bsize the blocks counts were changed to be in units of z_max_blksize instead of SPA_MINBLOCKSIZE as it is on other platforms. However, the free files calculation in zfs_statvfs() is limited by the free blocks count, since each dnode consumes one block/sector. This provided a reasonable estimate of free inodes, but on Linux this meant that the free inodes count was underestimated by a large amount, since 256 512-byte dnodes can fit into a 128kB block, and more if the max blocksize is increased to 1MB or larger. Also, the use of SPA_MINBLOCKSIZE is semantically incorrect since DNODE_SIZE may change to a value other than SPA_MINBLOCKSIZE and may even change per dataset, and devices with large sectors setting ashift will also use a larger blocksize. Correct the f_ffree calculation to use (availbytes >> DNODE_SHIFT) to more accurately compute the maximum number of dnodes that can be created. Signed-off-by: Andreas Dilger <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #413 Closes #400
* Fix uninitialized varible in zfs_do_userspace()Brian Behlendorf2011-09-271-1/+1
| | | | | | | | | | | | | | When compiling under Debian Lenny with gcc version 4.3.2 (Debian 4.3.2-1.1) the following warning occurs. To quiet the warning initialize 'error' to zero. Newer versions of gcc correctly determine that this uninitialized varible is impossible because ZFS_NUM_USERQUOTA_PROPS is known to be greater than zero. cmd/zfs/zfs_main.c:2377: warning: "error" may be used uninitialized in this function Signed-off-by: Brian Behlendorf <[email protected]>
* Export symbols for the full ZAP APIBrian Behlendorf2011-09-272-11/+36
| | | | | | | | | | | Export all the symbols for the ZAP API. This allows external modules to cleanly interface with ZAP type objects. Previously only a subset of the functionality was exposed. Documention for the ZAP API can be found in the sys/zap.h header. This change also removes a duplicate zap_increment_int() prototype. Signed-off-by: Brian Behlendorf <[email protected]>
* Make libefi-created GPT compatible with gptfdiskZachary Bedell2011-09-262-9/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | GPT's created by libefi set the HeaderSize attribute in the GPT header to 512 -- size of the GPT header INCLUDING the 420 padding bytes at the end. Most other tools set the size to 92 -- size of the actual header itself excluding the padding. Most tools check the recorded HeaderSize when verifying CRC, but gptfdisk hardcodes 92 and thus reports CRC verification problems for full-disk vdevs created IE with `zpool create pool sdc`. This commit changes libefi's behavior for GPT creation and also fixes several edge cases where libefi's behavior was similar (though in an incompatible manner) to gptfdisk. Libefi assumed HeaderSize was always 512 even if the GPT recorded a different value. Sanity checks of the GPT headersize read from disk were added before applying checksum calculation -- this will prevent segfault in cases of bogus on-disk values. Zpools created with the resuling libefi are verified as correct both by parted and gptfdisk. Also pool have been tested to import correctly on ZFS on Linux as well as Solaris Express 11 livecd. Signed-off-by: Zachary Bedell <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #344
* Fix boot failure in Dracut scripts.Zachary Bedell2011-09-261-2/+2
| | | | | | | | | | | | | | mount-zfs.sh script incorrectly parsed results from zpool list. Correct bootfs attribute was only found on systems with a single pool or where the bootable pool's name alphabetized to before all other pool names. Boot failed when the bootable pool's name came after other pools (IE 'rpool' and 'mypool' would fail to find bootfs on rpool.) Patch correctly discards pools whose bootfs attribute is blank ('-'). Signed-off-by: Zachary Bedell <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #402
* Use automatic variable in MakefileNed Bass2011-09-262-2/+2
| | | | | | | | | | | As written, the $(init_SCRIPTS) rule in etc/init.d/Makefule.am would not work as expected if the init_SCRIPTS variable were to contain any elements other than zfs. Fix this by replacing the hard-coded 'zfs' reference with $@. Signed-off-by: Ned Bass <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #410
* Suppress kmem_alloc() warning in zfs_prop_set_special()Brian Behlendorf2011-09-151-1/+2
| | | | | | | Suppress the warning for this large kmem_alloc() because it is not that far over the warning threshhold (8k) and it is short lived. Signed-off-by: Brian Behlendorf <[email protected]>
* Install zfs-devel headers in /usr/includeBrian Behlendorf2011-09-121-0/+1
| | | | | | | | | The zfs-devel header files for linking with the libspl/libzfs libraries should be installed under /usr/include not /include. Ensure the correct install location is used when building an rpm package. Signed-off-by: Brian Behlendorf <[email protected]>
* Fix usage of zsb after freeBrian Behlendorf2011-09-091-4/+3
| | | | | | | Caught by code inspection, the variable zsb was referenced after being freed. Move the kmem_free() to the end of the function. Signed-off-by: Brian Behlendorf <[email protected]>
* Ensure FC15 boots when zfs isn't used for boot partitionJeremy Gill2011-09-061-7/+11
| | | | | | | | | | | It seems that dracut version 009 through 013 won't boot correctly when the zfs-dracut rpm package has been installed, but 'root=zfs' isn't used on the boot commandline, for example when the package has been installed on a system that _doesn't_ boot from a zfs filesystem. Signed-off-by: Jeremy Gill <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #377
* Fix zfs.spec.in to use @LICENSE@ variablePrakash Surya2011-09-061-1/+1
| | | | | | | | | The zfs.spec.in file had the license field hard coded to specify the CDDL. This was changed to use the @LICENSE@ variable, maintaining consistency with the zfs-modules.spec.in file. Signed-off-by: Prakash Surya <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]>
* Fix package URLs to use the github repositoryPrakash Surya2011-09-062-2/+2
| | | | | | | | The URL field in the zfs-modules and zfs package spec files were updated to point to the ZFS on Linux repository hosted by github. Signed-off-by: Prakash Surya <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]>
* Convert 'if' statements to AS_IF in kernel.m4Prakash Surya2011-09-062-277/+673
| | | | | | | | The 'if' statements found in kernel.m4 were converted to use the portable alternative provided by autoconf, the AS_IF macro. Signed-off-by: Prakash Surya <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]>
* Fix minor autoconf error message inconsistenciesPrakash Surya2011-09-062-35/+35
| | | | | | | | | | | | | | | A few of the autoconf error messages were inconsistent with the rest of the build system. To be specific, the inconsistencies addressed by this commit are the following: * The second line of the error message for the CONFIG_PREEMPT check was missing it's third asterisk. * A few of the error messages were prefixed by two tabs, whereas the majority of error messages are only prefixed by a single tab. Signed-off-by: Prakash Surya <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]>
* Fix incorrect zpool_cache substitutionBrian Behlendorf2011-08-226-6/+6
| | | | | | | | | | This regression was accidentally introduced by commit aa2b489. I was attempting to simplify the init scripts and accidentally confused the /etc/init.d and /etc/zfs paths. This change reverts the init script modifications. Signed-off-by: Brian Behlendorf <[email protected]> Closes #370
* Merge branch 'udev'Brian Behlendorf2011-08-2222-143/+216
|\ | | | | | | | | | | | | | | | | Merge the remaining udev restructuring changes and cleanup. Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Kyle Fuller <[email protected]> Signed-off-by: Zachary Bedell <[email protected]> Closes #356
| * Fix autoconf variable substitution in init scripts.Brian Behlendorf2011-08-1911-66/+129
| | | | | | | | | | | | | | | | Change the variable substitution in the init script templates according to the method described in the Autoconf manual; Chapter 4.7.2: Installation Directory Variables. Signed-off-by: Brian Behlendorf <[email protected]>
| * Make dracut module-setup.sh an autoconf config fileKyle Fuller2011-08-196-63/+62
| | | | | | | | | | | | | | | | This ensures that module-setup.sh script will always be able to install the required dracut components regardless of how the zfs package was configured. Signed-off-by: Brian Behlendorf <[email protected]>
| * Move 90-zfs udev rule from dracut to udev/rules.dKyle Fuller2011-08-198-15/+26
|/ | | | | | | | | | This rule does not need to be dracut specific. Automatically loading the zfs module stack when a zfs device is detected is usually desirable. My only concern is that this might cause trouble for large pools where we don't want to automatically import the pool until all the disks are available. However, we'll cross that bridge when we come to it. Signed-off-by: Brian Behlendorf <[email protected]>
* Buildbot suppression rulesBrian Behlendorf2011-08-191-0/+6
| | | | | | | | | The warnings listed in the suppression file will be suppressed and not flagged during regular buildbot builds. These warnings are expected, harmless, and can obscure real issues unless they are suppressed. Signed-off-by: Brian Behlendorf <[email protected]>
* Fixed uninitialized variableBrian Behlendorf2011-08-191-1/+1
| | | | | | | | | | | This warning was accidentally introduced by commit b7936d5c2337bc976ac831c1c38de563844c36b. The fix is to simply initialize the variable to ZFS_DELEG_WHO_UNKNOWN. cmd/zfs/zfs_main.c:4460:25: warning: 'who_type' may be used uninitialized in this function Signed-off-by: Brian Behlendorf <[email protected]>
* Fix missing format argumentsBrian Behlendorf2011-08-191-3/+3
| | | | | | | | | | | These warnings were accidentally introduced by commit b7936d5c2337bc976ac831c1c38de563844c36b. The fix is to simply add the missing format specifier. cmd/zfs/zfs_main.c:4565: warning: format not a string literal and no format arguments Signed-off-by: Brian Behlendorf <[email protected]>
* Fix incompatible pointer type warningBrian Behlendorf2011-08-191-1/+2
| | | | | | | | | This warning was accidentally introduced by commit f3ab88d6461dec46dea240763843f66300facfab which updated the .readpages() implementation. The fix is to simply cast the helper function to the appropriate type when passed. Signed-off-by: Brian Behlendorf <[email protected]>
* Disable zfs /etc/mtab updatesBrian Behlendorf2011-08-191-2/+1
| | | | | | | | | | | | Completely disable the zfs binary from attempting to directly update /etc/mtab. The Linux port relies entirely on the mount.zfs helper to safely update /etc/mtab. If we left the /etc/mtab updates to the zfs binary then they could race with concurrent non-zfs mounts. Routing everything through the system mount command ensures the /etc/mtab updates are locked properly. Signed-off-by: Brian Behlendorf <[email protected]> Issue #329
* Improve HAVE_EVICT_INODE checkBrian Behlendorf2011-08-082-9/+9
| | | | | | | | | | | The hardened gentoo kernel defines all of the super block operation callbacks as const. This prevents the autoconf test from assigning the callback and results in a false negative. By moving the assignment in to the declaration we can avoid this issue and get a correct result for this patched kernel. Signed-off-by: Brian Behlendorf <[email protected]> Closes #296
* Autogen refresh for udev changesBrian Behlendorf2011-08-0855-117/+330
| | | | | | | | Run autogen.sh using the same autotools versions as upstream: * autoconf-2.63 * automake-1.11.1 * libtool-2.2.6b
* Move udev rules from /etc/udev to /lib/udevKyle Fuller2011-08-0818-30/+45
| | | | | | | | | | | | | | | | | | | This change moves the default install location for the zfs udev rules from /etc/udev/ to /lib/udev/. The correct convention is for rules provided by a package to be installed in /lib/udev/. The /etc/udev/ directory is reserved for custom rules or local overrides. Additionally, this patch cleans up some abuse of the bindir install location by adding a udevdir and udevruledir install directories. This allows us to revert to the default bin install location. The udev install directories can be set with the following new options. --with-udevdir=DIR install udev helpers [EPREFIX/lib/udev] --with-udevruledir=DIR install udev rules [UDEVDIR/rules.d] Signed-off-by: Brian Behlendorf <[email protected]> Closes #356
* Correctly lock pages for .readpages()Brian Behlendorf2011-08-081-54/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unlike the .readpage() callback which is passed a single locked page to be populated. The .readpages() callback is passed a list of unlocked pages which are all marked for read-ahead (PG_readahead set). It is the responsibly of .readpages() to ensure to pages are properly locked before being populated. Prior to this change the requested read-ahead pages would be updated outside of the page lock which is unsafe. The unlocked pages would then be unlocked again which is harmless but should have been immediately detected as bug. Unfortunately, newer kernels failed detect this issue because the check is done with a VM_BUG_ON which is disabled by default. Luckily, the old Debian Lenny 2.6.26 kernel caught this because it simply uses a BUG_ON. The straight forward fix for this is to update the .readpages() callback to use the read_cache_pages() helper function. The helper function will ensure that each page in the list is properly locked before it is passed to the .readpage() callback. In addition resolving the bug, this results in a nice simplification of the existing code. The downside to this change is that instead of passing one large read request to the dmu multiple smaller ones are submitted. All of these requests however are marked for readahead so the lower layers should issue a large I/O regardless. Thus most of the request should hit the ARC cache. Futher optimization of this code can be done in the future is a perform analysis determines it to be worthwhile. But for the moment, it is preferable that code be correct and understandable. Signed-off-by: Brian Behlendorf <[email protected]> Closes #355
* Add backing_device_info per-filesystemBrian Behlendorf2011-08-0461-0/+255
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For a long time now the kernel has been moving away from using the pdflush daemon to write 'old' dirty pages to disk. The primary reason for this is because the pdflush daemon is single threaded and can be a limiting factor for performance. Since pdflush sequentially walks the dirty inode list for each super block any delay in processing can slow down dirty page writeback for all filesystems. The replacement for pdflush is called bdi (backing device info). The bdi system involves creating a per-filesystem control structure each with its own private sets of queues to manage writeback. The advantage is greater parallelism which improves performance and prevents a single filesystem from slowing writeback to the others. For a long time both systems co-existed in the kernel so it wasn't strictly required to implement the bdi scheme. However, as of Linux 2.6.36 kernels the pdflush functionality has been retired. Since ZFS already bypasses the page cache for most I/O this is only an issue for mmap(2) writes which must go through the page cache. Even then adding this missing support for newer kernels was overlooked because there are other mechanisms which can trigger writeback. However, there is one critical case where not implementing the bdi functionality can cause problems. If an application handles a page fault it can enter the balance_dirty_pages() callpath. This will result in the application hanging until the number of dirty pages in the system drops below the dirty ratio. Without a registered backing_device_info for the filesystem the dirty pages will not get written out. Thus the application will hang. As mentioned above this was less of an issue with older kernels because pdflush would eventually write out the dirty pages. This change adds a backing_device_info structure to the zfs_sb_t which is already allocated per-super block. It is then registered when the filesystem mounted and unregistered on unmount. It will not be registered for mounted snapshots which are read-only. This change will result in flush-<pool> thread being dynamically created and destroyed per-mounted filesystem for writeback. Signed-off-by: Brian Behlendorf <[email protected]> Closes #174
* Cleanup mmap(2) writesBrian Behlendorf2011-08-023-111/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While the existing implementation of .writepage()/zpl_putpage() was functional it was not entirely correct. In particular, it would move dirty pages in to a clean state simply after copying them in to the ARC cache. This would result in the pages being lost if the system were to crash enough though the Linux VFS believed them to be safe on stable storage. Since at the moment virtually all I/O, except mmap(2), bypasses the page cache this isn't as bad as it sounds. However, as hopefully start using the page cache more getting this right becomes more important so it's good to improve this now. This patch takes a big step in that direction by updating the code to correctly move dirty pages through a writeback phase before they are marked clean. When a dirty page is copied in to the ARC it will now be set in writeback and a completion callback is registered with the transaction. The page will stay in writeback until the dmu runs the completion callback indicating the page is on stable storage. At this point the page can be safely marked clean. This process is normally entirely asynchronous and will be repeated for every dirty page. This may initially sound inefficient but most of these pages will end up in a few txgs. That means when they are eventually written to disk they should be nicely batched. However, there is room for improvement. It may still be desirable to batch up the pages in to larger writes for the dmu. This would reduce the number of callbacks and small 4k buffer required by the ARC. Finally, if the caller requires that the I/O be done synchronously by setting WB_SYNC_ALL or if ZFS_SYNC_ALWAYS is set. Then the I/O will trigger a zil_commit() to flush the data to stable storage. At which point the registered callbacks will be run leaving the date safe of disk and marked clean before returning from .writepage. Signed-off-by: Brian Behlendorf <[email protected]>
* Use libzfs_run_process() in libshare.Gunnar Beutner2011-08-011-59/+29
| | | | | | | | This should simplify the code a bit by re-using existing code to fork and exec a process. Signed-off-by: Brian Behlendorf <[email protected]> Issue #190
* Use /dev/null for stdout/stderr in libzfs_run_process().Gunnar Beutner2011-08-011-3/+10
| | | | | | | | | | | | Simply closing the stdout and/or stderr file descriptors for the child process can have bad side effects if for example the child writes to stdout/stderr after open()ing a file. The open() call might have returned the same file descriptor one would usually expect for stdout/stderr (1 and 2), thereby causing mis-directed writes. Signed-off-by: Brian Behlendorf <[email protected]> Issue #190
* Call exportfs -v once for NFS shares.James H2011-08-011-90/+74
| | | | | | | | | | | | | | | | | | At the moment we call exportfs -v every time we check whether an NFS share is active. This happens every time you run a zfs or zpool command, making them extremely slow when you have a lot of exports. The time taken is approx O(n2) of the number of shares. This commit stores the output from exportfs -v in a temporary file and use this to speed up subsequent accesses. This mechanism is still too slow - if you have tens of thousands of NFS shares it will still be painful running ANY zfs/zpool command. Signed-off-by: Gunnar Beutner <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #341
* Merge branch 'illumos'Brian Behlendorf2011-08-0123-106/+2700
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge in ten upstream fixes which have already been made to both the Illumos and FreeBSD ZFS implementations. This brings us up to date with the latest ZFS changes in Illumos. Credit goes to Martin Matuska of the FreeBSD project for posting an excellent summary of the upstream patches we were missing. Illumos #1313: Integer overflow in txg_delay() Illumos #278: get rid zfs of python and pyzfs dependencies Illumos #1043: Recursive zfs snapshot destroy fails Illumos #883: ZIL reuse during remount corruption Illumos #1092: zfs refratio property Illumos #1051: zfs should handle Illumos #510: 'zfs get' enhancement - mountpoint as an argument Illumos #175: zfs vdev cache consumes excessive memory Illumos #764: panic in zfs:dbuf_sync_list Illumos #xxx: zdb -vvv broken after zfs diff integration Signed-off-by: Brian Behlendorf <[email protected]> Closes #340
| * Illumos #1313: Integer overflow in txg_delay()Martin Matuska2011-08-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function txg_delay() is used to delay txg (transaction group) threads in ZFS. The timeout value for this function is calculated using: int timeout = ddi_get_lbolt() + ticks; Later, the actual wait is performed: while (ddi_get_lbolt() < timeout && tx->tx_syncing_txg < txg-1 && !txg_stalled(dp)) (void) cv_timedwait(&tx->tx_quiesce_more_cv, &tx->tx_sync_lock, timeout - ddi_get_lbolt()); The ddi_get_lbolt() function returns current uptime in clock ticks and is typed as clock_t. The clock_t type on 64-bit architectures is int64_t. The "timeout" variable will overflow depending on the tick frequency (e.g. for 1000 it will overflow in 28.855 days). This will make the expression "ddi_get_lbolt() < timeout" always false - txg threads will not be delayed anymore at all. This leads to a slowdown in ZFS writes. The attached patch initializes timeout as clock_t to match the return value of ddi_get_lbolt(). Signed-off-by: Brian Behlendorf <[email protected]> Issue #352
| * Illumos #278: get rid zfs of python and pyzfs dependenciesAlexander Stetsenko2011-08-015-34/+2440
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove all python and pyzfs dependencies for consistency and to ensure full functionality even in a mimimalist environment. Reviewed by: [email protected] Reviewed by: [email protected] Reviewed by: [email protected] Reviewed by: [email protected] Approved by: [email protected] References to Illumos issue and patch: - https://www.illumos.org/issues/278 - https://github.com/illumos/illumos-gate/commit/1af68beac3 Signed-off-by: Brian Behlendorf <[email protected]> Issue #340 Issue #160 Signed-off-by: Brian Behlendorf <[email protected]>
| * Illumos #1043: Recursive zfs snapshot destroy failsMartin Matuska2011-08-011-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prior to revision 11314 if a user was recursively destroying snapshots of a dataset the target dataset was not required to exist. The zfs_secpolicy_destroy_snaps() function introduced the security check on the target dataset, so since then if the target dataset does not exist, the recursive destroy is not performed. Before 11314, only a delete permission check on the snapshot's master dataset was performed. Steps to reproduce: zfs create pool/a zfs snapshot pool/a@s1 zfs destroy -r pool@s1 Therefore I suggest to fallback to the old security check, if the target snapshot does not exist and continue with the destroy. References to Illumos issue and patch: - https://www.illumos.org/issues/1043 - https://www.illumos.org/attachments/217/recursive_dataset_destroy.patch Signed-off-by: Brian Behlendorf <[email protected]> Issue #340
| * Illumos #883: ZIL reuse during remount corruptionEric Schrock2011-08-012-16/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moving the zil_free() cleanup to zil_close() prevents this problem from occurring in the first place. There is a very good description of the issue and fix in Illumus #883. Reviewed by: Matt Ahrens <[email protected]> Reviewed by: Adam Leventhal <[email protected]> Reviewed by: Albert Lee <[email protected]> Reviewed by: Gordon Ross <[email protected]> Reviewed by: Garrett D'Amore <[email protected]> Reivewed by: Dan McDonald <[email protected]> Approved by: Gordon Ross <[email protected]> References to Illumos issue and patch: - https://www.illumos.org/issues/883 - https://github.com/illumos/illumos-gate/commit/c9ba2a43cb Signed-off-by: Brian Behlendorf <[email protected]> Issue #340
| * Illumos #1092: zfs refratio propertyMatt Ahrens2011-08-015-7/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a "REFRATIO" property, which is the compression ratio based on data referenced. For snapshots, this is the same as COMPRESSRATIO, but for filesystems/volumes, the COMPRESSRATIO is based on the data "USED" (ie, includes blocks in children, but not blocks shared with the origin). This is needed to figure out how much space a filesystem would use if it were not compressed (ignoring snapshots). Reviewed by: George Wilson <[email protected]> Reviewed by: Adam Leventhal <[email protected]> Reviewed by: Dan McDonald <[email protected]> Reviewed by: Richard Elling <[email protected]> Reviewed by: Mark Musante <[email protected]> Reviewed by: Garrett D'Amore <[email protected]> Approved by: Garrett D'Amore <[email protected]> References to Illumos issue and patch: - https://www.illumos.org/issues/1092 - https://github.com/illumos/illumos-gate/commit/187d6ac08a Signed-off-by: Brian Behlendorf <[email protected]> Issue #340
| * Illumos #1051: zfs should handle imbalanced lunsGeorge Wilson2011-08-018-28/+123
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Today zfs tries to allocate blocks evenly across all devices. This means when devices are imbalanced zfs will use lots of CPU searching for space on devices which tend to be pretty full. It should instead fail quickly on the full LUNs and move onto devices which have more availability. Reviewed by: Eric Schrock <[email protected]> Reviewed by: Matt Ahrens <[email protected]> Reviewed by: Adam Leventhal <[email protected]> Reviewed by: Albert Lee <[email protected]> Reviewed by: Gordon Ross <[email protected]> Approved by: Garrett D'Amore <[email protected]> References to Illumos issue and patch: - https://www.illumos.org/issues/510 - https://github.com/illumos/illumos-gate/commit/5ead3ed965 Signed-off-by: Brian Behlendorf <[email protected]> Issue #340
| * Illumos #510: 'zfs get' enhancement - mountpoint as an argumentShampavman2011-08-011-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 'zfs get' command should be able to deal with mountpoint as an argument. It already works with 'zfs list' command: # zfs list /export/home/estibi NAME USED AVAIL REFER MOUNTPOINT rpool/export/home/estibi 1.14G 3.86G 1.14G /export/home/estibi but it fails with 'zfs get': # zfs get all /export/home/estibi cannot open '/export/home/estibi': invalid dataset name Reviewed by: Eric Schrock <[email protected]> Reviewed by: Deano <[email protected]> Reviewed by: Garrett D'Amore <[email protected]> Approved by: Garrett D'Amore <[email protected]> References to Illumos issue and patch: - https://www.illumos.org/issues/510 - https://github.com/illumos/illumos-gate/commit/5ead3ed965 Signed-off-by: Brian Behlendorf <[email protected]> Issue #340
| * Illumos #175: zfs vdev cache consumes excessive memoryGarrett D'Amore2011-08-011-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Note that with the current ZFS code, it turns out that the vdev cache is not helpful, and in some cases actually harmful. It is better if we disable this. Once some time has passed, we should actually remove this to simplify the code. For now we just disable it by setting the zfs_vdev_cache_size to zero. Note that Solaris 11 has made these same changes. References to Illumos issue and patch: - https://www.illumos.org/issues/175 - https://github.com/illumos/illumos-gate/commit/b68a40a845 Reviewed by: George Wilson <[email protected]> Reviewed by: Eric Schrock <[email protected]> Approved by: Richard Lowe <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #340
| * Illumos #764: panic in zfs:dbuf_sync_listGordon Ross2011-08-011-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hypothesis about what's going on here. At some time in the past, something, i.e. dnode_reallocate() calls one of: dbuf_rm_spill(dn, tx); These will do: dbuf_rm_spill(dnode_t *dn, dmu_tx_t *tx) dbuf_free_range(dn, DMU_SPILL_BLKID, DMU_SPILL_BLKID, tx) dbuf_undirty(db, tx) Currently dbuf_undirty can leave a spill block in dn_dirty_records[], (it having been put there previously by dbuf_dirty) and free it. Sometime later, dbuf_sync_list trips over this reference to free'd (and typically reused) memory. Also, dbuf_undirty can call dnode_clear_range with a bogus block ID. It needs to test for DMU_SPILL_BLKID, similar to how dnode_clear_range is called in dbuf_dirty(). References to Illumos issue and patch: - https://www.illumos.org/issues/764 - https://github.com/illumos/illumos-gate/commit/3f2366c2bb Reviewed by: George Wilson <[email protected]> Reviewed by: [email protected] Reviewed by: Albert Lee <[email protected] Approved by: Garrett D'Amore <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #340
| * Illumos #xxx: zdb -vvv broken after zfs diff integrationTim Haley2011-08-011-14/+14
|/ | | | | | | | References to Illumos issue and patch: - https://github.com/illumos/illumos-gate/commit/163eb7ff Signed-off-by: Brian Behlendorf <[email protected]> Issue #340
* Add .gitignore for zfs.<distro> init scriptsBrian Behlendorf2011-08-011-0/+6
| | | | | | Treat the automatically generated zfs.<distro> init scripts as build products by adding them to a directory specific .gitignore file.
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