We have a patch under review for FSAL_GPFS for that issue, awaiting the submitter to extend the patch to cover other FSALs also. If you want to verify the fix would work for your case, it should be easy to take the fix and do the same thing in FSAL_VFS.
https://review.gerrithub.io/#/c/390141/ As soon as this patch is merged into V2.6, it will be slated for backport to V2.5-stable. Frank > -----Original Message----- > From: Pradeep [mailto:pradeep.tho...@gmail.com] > Sent: Wednesday, January 10, 2018 8:06 PM > To: nfs-ganesha-devel <nfs-ganesha-devel@lists.sourceforge.net> > Subject: [Nfs-ganesha-devel] Race between fsal_find_fd() and 'open > downgrade' > > Hello, > > I'm seeing a write failure because another thread in ganesha doing 'open > downgrade' closed the FD the find_fd() returned. Any suggestion on how to > fix the race? > > vfs_reopen2() > {... > status = vfs_open_my_fd(myself, openflags, posix_flags, my_fd); > > if (!FSAL_IS_ERROR(status)) { > /* Close the existing file descriptor and copy the new > * one over. > */ > vfs_close_my_fd(my_share_fd); > *my_share_fd = fd; > > vfs_write2() > { > .. > status = find_fd(&my_fd, obj_hdl, bypass, state, openflags, > &has_lock, &closefd, false); > > if (FSAL_IS_ERROR(status)) { > LogDebug(COMPONENT_FSAL, > "find_fd failed %s", msg_fsal_err(status.major)); > goto out; > } > > fsal_set_credentials(op_ctx->creds); > > nb_written = pwrite(my_fd, buffer, buffer_size, offset); > > ---------------------------------------------------------------------------- -- > Check out the vibrant tech community on one of the world's most engaging > tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Nfs-ganesha-devel mailing list > Nfs-ganesha-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Nfs-ganesha-devel mailing list Nfs-ganesha-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel
