1b2775bdb0
Systems with older kernels won't have these available, and the copies in btrfs-progs aren't quite compatible, so for now, let's just copy these in. We can potentially deduplicate some of this in the future. Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
/*
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* Copyright (C) 2018 Facebook
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*
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* This file is part of libbtrfsutil.
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*
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* libbtrfsutil is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* libbtrfsutil is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libbtrfsutil. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include "btrfsutil_internal.h"
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PUBLIC enum btrfs_util_error btrfs_util_sync(const char *path)
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{
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enum btrfs_util_error err;
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int fd;
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fd = open(path, O_RDONLY);
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if (fd == -1)
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return BTRFS_UTIL_ERROR_OPEN_FAILED;
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err = btrfs_util_sync_fd(fd);
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SAVE_ERRNO_AND_CLOSE(fd);
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return err;
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}
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PUBLIC enum btrfs_util_error btrfs_util_sync_fd(int fd)
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{
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int ret;
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ret = ioctl(fd, BTRFS_IOC_SYNC, NULL);
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if (ret == -1)
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return BTRFS_UTIL_ERROR_SYNC_FAILED;
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return BTRFS_UTIL_OK;
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}
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PUBLIC enum btrfs_util_error btrfs_util_start_sync(const char *path,
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uint64_t *transid)
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{
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enum btrfs_util_error err;
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int fd;
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fd = open(path, O_RDONLY);
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if (fd == -1)
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return BTRFS_UTIL_ERROR_OPEN_FAILED;
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err = btrfs_util_start_sync_fd(fd, transid);
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SAVE_ERRNO_AND_CLOSE(fd);
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return err;
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}
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PUBLIC enum btrfs_util_error btrfs_util_start_sync_fd(int fd, uint64_t *transid)
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{
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int ret;
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ret = ioctl(fd, BTRFS_IOC_START_SYNC, transid);
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if (ret == -1)
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return BTRFS_UTIL_ERROR_START_SYNC_FAILED;
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return BTRFS_UTIL_OK;
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}
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PUBLIC enum btrfs_util_error btrfs_util_wait_sync(const char *path,
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uint64_t transid)
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{
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enum btrfs_util_error err;
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int fd;
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fd = open(path, O_RDONLY);
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if (fd == -1)
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return BTRFS_UTIL_ERROR_OPEN_FAILED;
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err = btrfs_util_wait_sync_fd(fd, transid);
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SAVE_ERRNO_AND_CLOSE(fd);
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return err;
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}
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PUBLIC enum btrfs_util_error btrfs_util_wait_sync_fd(int fd, uint64_t transid)
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{
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int ret;
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ret = ioctl(fd, BTRFS_IOC_WAIT_SYNC, &transid);
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if (ret == -1)
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return BTRFS_UTIL_ERROR_WAIT_SYNC_FAILED;
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return BTRFS_UTIL_OK;
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}
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