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* posix: fix use after freed by calling STACK_UNWIND_STRICT after error cleanupKinglong Mee2017-12-191-20/+19
| | | | | | | | xdata is freed when calling STACK_UNWIND_STRICT, so that, posix_gfid_unset uses xdata after freed. Change-Id: Id0ff2da3d6d9be204e50d9fb37ba57558936c85c Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
* posix: Add option to disable nftw() based deletes when purging the landfill ↵Shreyas Siravara2017-12-111-0/+2
| | | | | | | | | | | | | | | | directory Summary: - We may have found an issue where certain directories were being moved into .landfill and then being quickly purged via nftw(). - We would like to have an emergency option to disable these purges. > Reviewed-on: https://review.gluster.org/18253 > Reviewed-by: Shreyas Siravara <sshreyas@fb.com> Fixes #371 Change-Id: I90b54c535930c1ca2925a928728199b6b80eadd9 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* storage/posix: Add limit to number of hard linksShreyas Siravara2017-12-081-0/+9
| | | | | | | | | | | | Summary: Too may hard links blow up btrfs by exceeding max xattr size (recordign pgfid for each hardlink). Add a limit to prevent this explosion. > Reviewed-on: https://review.gluster.org/18232 > Reviewed-by: Shreyas Siravara <sshreyas@fb.com> Fixes gluster/glusterfs#370 Signed-off-by: ShyamsundarR <srangana@redhat.com> Change-Id: I614a247834fb8f2b2743c0c67d11cefafff0dbaa
* posix: Reorganize posix xlator to prepare for reuse with rioShyamsundarR2017-12-021-0/+2125
1. Split out entry and inode/fd based FOPs into separate files from posix.c 2. Split out common routines (init, fini, reconf, and such) into its own file, from posix.c 3. Retain just the method assignments in posix.c (such that posix2 for RIO can assign its own methods in the future for entry operations and such) 4. Based on the split in (1) and (2) split out posix-handle.h into 2 files, such that macros that are needed for inode ops are in one and rest are in the other If the split is done as above, posix2 can compile with its own entry ops, and hence not compile, the entry ops as split in (1) above. The split described in (4) can again help posix2 to define its own macros to make entry and inode handles, thus not impact existing POSIX xlator code. Noted problems - There are path references in certain cases where quota is used (in the xattr FOPs), and thus will fail on reuse in posix2, this needs to be handled when we get there. - posix_init does set root GFID on the brick root, and this is incorrect for posix2, again will need handling later when posix2 evolves based on this code (other init checks seem fine on current inspection) Merge of experimental branch patches with the following gerrit change-IDs > Change-Id: I965ce6dffe70a62c697f790f3438559520e0af20 > Change-Id: I089a4d9cf470c2f9c121611e8ef18dea92b2be70 > Change-Id: I2cec103f6ba8f3084443f3066bcc70b2f5ecb49a Fixes gluster/glusterfs#327 Change-Id: I0ccfa78559a7c5a68f5e861e144cf856f5c9e19c Signed-off-by: ShyamsundarR <srangana@redhat.com>