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btrfs-progs: refactor and extend btrfs_prepare_device arguments

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The message about discard is printed unconditionally and does not
conform to the --quite option eg. in mkfs. Consolidate the operation
flags into one argument and add support for verbosity.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-07-28 01:47:40 +02:00
parent 9c92c4eb92
commit 5407ee85fc
5 changed files with 28 additions and 16 deletions
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5
cmds-device.c
View File

@ -107,8 +107,9 @@ static int cmd_device_add(int argc, char **argv)
continue;
}
res = btrfs_prepare_device(devfd, argv[i], 1, &dev_block_count,
0, discard);
res = btrfs_prepare_device(devfd, argv[i], &dev_block_count, 0,
PREP_DEVICE_ZERO_END | PREP_DEVICE_VERBOSE |
(discard ? PREP_DEVICE_DISCARD : 0));
close(devfd);
if (res) {
ret++;

4
cmds-replace.c
View File

@ -254,8 +254,8 @@ static int cmd_replace_start(int argc, char **argv)
}
strncpy((char *)start_args.start.tgtdev_name, dstdev,
BTRFS_DEVICE_PATH_NAME_MAX);
ret = btrfs_prepare_device(fddstdev, dstdev, 1, &dstdev_block_count, 0,
0);
ret = btrfs_prepare_device(fddstdev, dstdev, &dstdev_block_count, 0,
PREP_DEVICE_ZERO_END | PREP_DEVICE_VERBOSE);
if (ret)
goto leave_with_error;

14
mkfs.c
View File

@ -1636,8 +1636,11 @@ int main(int argc, char **argv)
strerror(errno));
exit(1);
}
ret = btrfs_prepare_device(fd, file, zero_end, &dev_block_count,
block_count, discard);
ret = btrfs_prepare_device(fd, file, &dev_block_count,
block_count,
(zero_end ? PREP_DEVICE_ZERO_END : 0) |
(discard ? PREP_DEVICE_DISCARD : 0) |
(verbose ? PREP_DEVICE_VERBOSE : 0));
if (ret) {
close(fd);
exit(1);
@ -1767,8 +1770,11 @@ int main(int argc, char **argv)
close(fd);
continue;
}
ret = btrfs_prepare_device(fd, file, zero_end, &dev_block_count,
block_count, discard);
ret = btrfs_prepare_device(fd, file, &dev_block_count,
block_count,
(verbose ? PREP_DEVICE_VERBOSE : 0) |
(zero_end ? PREP_DEVICE_ZERO_END : 0) |
(discard ? PREP_DEVICE_DISCARD : 0));
if (ret) {
close(fd);
exit(1);

13
utils.c
View File

@ -1682,8 +1682,8 @@ out:
return ret;
}
int btrfs_prepare_device(int fd, const char *file, int zero_end,
u64 *block_count_ret, u64 max_block_count, int discard)
int btrfs_prepare_device(int fd, const char *file, u64 *block_count_ret,
u64 max_block_count, unsigned opflags)
{
u64 block_count;
struct stat st;
@ -1703,15 +1703,16 @@ int btrfs_prepare_device(int fd, const char *file, int zero_end,
if (max_block_count)
block_count = min(block_count, max_block_count);
if (discard) {
if (opflags & PREP_DEVICE_DISCARD) {
/*
* We intentionally ignore errors from the discard ioctl. It
* is not necessary for the mkfs functionality but just an
* optimization.
*/
if (discard_range(fd, 0, 0) == 0) {
printf("Performing full device TRIM (%s) ...\n",
pretty_size(block_count));
if (opflags & PREP_DEVICE_VERBOSE)
printf("Performing full device TRIM (%s) ...\n",
pretty_size(block_count));
discard_blocks(fd, 0, block_count);
}
}
@ -1720,7 +1721,7 @@ int btrfs_prepare_device(int fd, const char *file, int zero_end,
for (i = 0 ; !ret && i < BTRFS_SUPER_MIRROR_MAX; i++)
ret = zero_dev_clamped(fd, btrfs_sb_offset(i),
BTRFS_SUPER_INFO_SIZE, block_count);
if (!ret && zero_end)
if (!ret && (opflags & PREP_DEVICE_ZERO_END))
ret = zero_dev_clamped(fd, block_count - ZERO_DEV_BYTES,
ZERO_DEV_BYTES, block_count);

8
utils.h
View File

@ -147,12 +147,16 @@ struct btrfs_convert_context {
void *fs_data;
};
#define PREP_DEVICE_ZERO_END (1U << 0)
#define PREP_DEVICE_DISCARD (1U << 1)
#define PREP_DEVICE_VERBOSE (1U << 2)
int make_btrfs(int fd, struct btrfs_mkfs_config *cfg,
struct btrfs_convert_context *cctx);
int btrfs_make_root_dir(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 objectid);
int btrfs_prepare_device(int fd, const char *file, int zero_end,
u64 *block_count_ret, u64 max_block_count, int discard);
int btrfs_prepare_device(int fd, const char *file, u64 *block_count_ret,
u64 max_block_count, unsigned opflags);
int btrfs_add_to_fsid(struct btrfs_trans_handle *trans,
struct btrfs_root *root, int fd, char *path,
u64 block_count, u32 io_width, u32 io_align,