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file-posix: Include filename in locking error message

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Image locking errors happening at device initialization time doesn't say
which file cannot be locked, for instance,

    -device scsi-disk,drive=drive-1: Failed to get shared "write" lock
    Is another process using the image?

could refer to either the overlay image or its backing image.

Hoist the error_append_hint to the caller of raw_check_lock_bytes where
file name is known, and include it in the error hint.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Fam Zheng 2018-09-25 13:05:01 +08:00 • committed by Kevin Wolf
parent 07f426c35e
commit b857431d2a
3 changed files with 45 additions and 43 deletions
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10
block/file-posix.c
View file

@ -741,8 +741,6 @@ static int raw_check_lock_bytes(int fd, uint64_t perm, uint64_t shared_perm,
"Failed to get \"%s\" lock",
perm_name);
g_free(perm_name);
error_append_hint(errp,
"Is another process using the image?\n");
return ret;
}
}
@ -758,8 +756,6 @@ static int raw_check_lock_bytes(int fd, uint64_t perm, uint64_t shared_perm,
"Failed to get shared \"%s\" lock",
perm_name);
g_free(perm_name);
error_append_hint(errp,
"Is another process using the image?\n");
return ret;
}
}
@ -796,6 +792,9 @@ static int raw_handle_perm_lock(BlockDriverState *bs,
if (!ret) {
return 0;
}
error_append_hint(errp,
"Is another process using the image [%s]?\n",
bs->filename);
}
op = RAW_PL_ABORT;
/* fall through to unlock bytes. */
@ -2217,6 +2216,9 @@ raw_co_create(BlockdevCreateOptions *options, Error **errp)
/* Step two: Check that nobody else has taken conflicting locks */
result = raw_check_lock_bytes(fd, perm, shared, errp);
if (result < 0) {
error_append_hint(errp,
"Is another process using the image [%s]?\n",
file_opts->filename);
goto out_unlock;
}